CA2437652A1 - Automated flocculation titrimeter system - Google Patents

Automated flocculation titrimeter system Download PDF

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Publication number
CA2437652A1
CA2437652A1 CA002437652A CA2437652A CA2437652A1 CA 2437652 A1 CA2437652 A1 CA 2437652A1 CA 002437652 A CA002437652 A CA 002437652A CA 2437652 A CA2437652 A CA 2437652A CA 2437652 A1 CA2437652 A1 CA 2437652A1
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Canada
Prior art keywords
solution
titration
titrant
asphalt
substance
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CA002437652A
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French (fr)
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CA2437652C (en
Inventor
Adam T. Pauli
Raymond E. Robertson
Jan F. Branthaver
John F. Schabron
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University of Wyoming Research Corp (dba Western Research Institute)
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Individual
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/79—Photometric titration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/82—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a precipitate or turbidity
    • G01N21/83—Turbidimetric titration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/42—Road-making materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
    • G01N31/162—Determining the equivalent point by means of a discontinuity

Abstract

A system for determining parameters and compatibility of a substance such as an asphalt or other petroleum substance uses titration to highly accurately determine one or more flocculation occurences and is especially applicable t o the determination or use of Heithaus parameters and optimal mixing of variou s asphalt stocks. in a preferred embodiment, automated titration in an oxygen gas exclusive system and further using spectrophotometric analysis (2-8) of solution turbidity is presented. A reversible titration technique enabling i n- situ titration measurement of various solution concentrations is also presented.

Claims (146)

1. A titration method comprising the steps of:

a. creating a solution by dissolving at least one soluble substance in a solvent;
b. establishing said solution in a solution containment element;
c. excluding gas from said solution;
d. monitoring a parameter of said solution d. controllably adding a titrant to said solution;
e. achieving a threshold solution change; and f. determining at least one Heithaus parameter.
2 A titration method as in claim 1 wherein said step of monitoring a parameter of said solution comprises the step of spectrophotometrically monitoring said solution.
3. A titration method as in claim 2 wherein said step of spectrophotometrically monitoring said solution comprises the step of monitoring solution turbidity.
4. A titration method as in claim 1 further comprising the step of circulating said solution through a solution circulation system.
5. A titration method as in claim 1 further comprising the steps of:

a. altering a character of said solution to eliminate said threshold solution change after said step of achieving a threshold solution change;

b. achieving at least a second threshold solution change; and c. determining a characteristic of at least one substance of said solution as a result of said step of achieving at least one of said threshold solution changes.
6. A titration method as in claim 2 further comprising the step of circulating said solution through a solution circulation system.
7. A titration method as in claim 1 wherein said step of determining at least one Heithaus parameter comprises the step of automatically determining said at least one Heithaus parameter using a computer program.
8. A titration method as in claim 2 wherein said step of determining at least one Heithaus parameter comprises the step of automatically determining said at least one Heithaus parameter using a computer program.
9. A titration method as in claim 4 wherein said step of determining at least one Heithaus parameter comprises the step of automatically determining said at least one Heithaus parameter using a computer program.
10. A titration method as in claim 6 wherein said step of determining at least one Heithaus parameter comprises the step of automatically determining said at least one Heithaus parameter using a computer program.
11. A titration method as in any of claims 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 further comprising a temperature maintenance element to which said solution is responsive.
12. A titration apparatus comprising:

a. a titrant containment element;

b. a titrant delivery element responsive to said titrant containment element;

c. a solution containment element fluidicly responsive to said titrant containment element;

d. a solution circulation system responsive to said solution containment element; and e. a spectrophotometer responsive to said solution circulation system.
13. A titration apparatus as in claim 12 wherein said solution circulation system comprises a low volume solution circulation system.
14. A titration apparatus as in claim 12 further comprising a gas exclusion element within which said titrant delivery element is operable.
15. A titration apparatus as in claim 13 further comprising a gas exclusion element within which said titrant delivery element is operable.
16. A titration apparatus as in claim 12 further comprising a computerized threshold change indicator which is configured to respond to a solution contained within said solution containment element.
17. A titration apparatus as in claim 13 further comprising a computerized threshold change indicator which is configured to respond to a solution contained within said solution containment element.
18. A titration apparatus as in claim 14 further comprising a computerized threshold change indicator which is configured to respond to a solution contained within said solution containment element.
19. A titration apparatus as in claim 15 further comprising a computerized threshold change indicator which is configured to respond to a solution contained within said solution containment element.
20. A titration apparatus as in any of the claims 12, 13, 14, 15, 16, 17, 18, or 19 further comprising a solution temperature maintenance element to which said solution is responsive.
21. A titration method comprising the steps of:

a. creating a solution by dissolving at least one soluble substance in a solvent;

b. establishing said solution within a solution containment element;

c. controllably adding a titrant to said solution within said solution containment element;

d. achieving a first threshold solution change as a result of said step of controllably adding a titrant to said solution;

e. altering a character of said solution to eliminate said first threshold solution change;

f achieving at least a second threshold solution change; and g. determining a characteristic of at least one substance of said solution as a result of said step of achieving at least one of said threshold solution changes.
22. A titration method as described in claim 21 wherein said step of achieving at least a second threshold solution change comprises the step of controllably adding additional titrant to said solution within said solution containment element.
23. A titration method as described in claim 22 wherein said step of altering a character of said solution to eliminate said first threshold solution change comprises the step of adding a solvent to said solution.
24. A titration method as described in claim 23 and further comprising the step of repetitively achieving additional threshold solution changes prior to accomplishing said step of determining a characteristic of at least one substance of said solution.
25. A titration method as described in claim 21 and further comprising the step of maintaining said solution at a desired temperature while achieving said threshold solution changes.
26. A titration method as described in claim 21 and further comprising the step of excluding gas from said solution.
27. A titration method as described in claim 21 wherein said step of determining a characteristic of at least one substance of said solution comprises the step of spectrophotometrically analyzing said solution.
28. A titration method as described in claim 21 and further comprising the step of monitoring a solution change index at the time of accomplishing said steps of achieving said threshold solution changes.
29. A titration method as described in claim 28 wherein said step of monitoring a solution change index comprises the step of monitoring solution turbidity.
30. A titration method as described in claim 29 wherein said step of monitoring solution turbidity comprises the step of spectrophotometrically analyzing said solution.
31. A titration method as described in claim 21 wherein said steps of achieving said threshold solution changes comprise the step of causing a flocculation onset.
32. A titration method as described in claim 21 and further comprising the step of preliminarily assessing a parameter of said solution after accomplishing said step of achieving a first threshold solution change as a result of said step of controllably adding a titrant to said solution.
33. A titration method as described in claim 21 wherein said step of controllably adding a titrant to said solution within said solution containment element comprises the step of continuously adding a titrant to said solution within said solution containment element.
34. A titration method as described in claim 21 wherein said step of altering a character of said solution to eliminate said first threshold solution change comprises the step of achieving a lower solubility parameter for said solution.
35. A titration method as described in claim 21 wherein said step of creating a solution by dissolving at least one soluble substance in a solvent comprises the step of mixing a petroleum residua with a solvent.
36. A titration method as described in claim 35 wherein said step of controllably adding a titrant to said solution within said solution containment element comprises the step of controllably adding a titrant selected from a group consisting of:
aliphatic hydrocarbon substances and alcohol substances.
37. A titration method as described in claim 36 wherein said step of mixing a petroleum residua with a solvent comprises the step of mixing a petroleum residua with a solvent selected from a group consisting of: toluene and benzene.
38. A titration apparatus comprising:
a. a titrant containment element;
b. a titrant delivery element responsive to said titrant containment element;
c. a solution containment element capable of containing a solution and fluidicly responsive to said titrant containment element;
d. a solution threshold change detector configured to respond to a solution contained within said solution containment element; and e. a solution character alteration element responsive to said solution threshold change detector.
39. titration apparatus as described in claim 38 wherein said solution character alteration element comprises a metered solvent addition system.
40. A titration apparatus as described in claim 39 wherein said solution threshold change detector comprises a repetitive solution threshold change detector.
41. A titration apparatus as described in claim 38 further comprising a temperature control element to which said solution containment element is responsive.
42. A titration apparatus as described in claim 38 and further comprising a gas exclusion element within which said titrant delivery element is operable.
43. A titration apparatus as described in claim 38 and whrein said solution threshold change dector compriese an automatic solution character determination element.
44. A titration apparatus as described in claim 43 wherein said automatic solution character determination element comprises a spectrophotometer.
45. A titration apparatus as described in claim 43 wherein said automatic solution character determination element comprises a solution change index monitor.
46. A titration apparatus as described in claim 45 wherein said solution change index monitor comprises a solution turbidity monitor.
47. A titration apparatus as described in claim 46 wherein said solution turbidity monitor comprises a spectrophotometer.
48. A titration apparatus as described in claim 38 wherein said solution threshold change detector comprises a flocculation onset monitor.
49. A titration apparatus as described in claim 38 wherein said titrant delivery element comprises a continuous titrant delivery element.
50. A titration apparatus as described in claim 39 wherein said titrant delivery element is selected from a group consisting of: an aliphatic hydrocarbon substance delivery element and alcohol substance delivery element.
51. A titration apparatus as described in claim 50 wherein said metered solvent addition system is selected from a group consisting of: metered toluene addition element and a metered benzene addition element.
52. A titration method comprising the steps of:
a. creating a solution by dissolving at least one soluble substance in a solvent;
b. establishing said solution within a solution containment element;
c. controllably adding a titrant to said solution within said solution containment element while accomplishing the step of;
d. excluding gas from said solution;
e. monitoring a parameter of said solution while accomplishing said step of controllably adding said titrant to said solution;
f. achieving a threshold solution change while accomplishing said step of monitoring said parameter of said solution; and g. determining a characteristic of at least one substance of said solution as a result of said step of achieving a threshold solution change.
53. A titration method as described in claim 52 wherein said step of controllably adding a titrant to said solution within said solution containment element comprises the step of continually adding a titrant to said solution within said solution containment element.
54. A titration method as described in claim 52 wherein said step of determining a characteristic of at least one substance of said solution comprises the step of determining at least one Heithaus parameter.
55. A titration method as described in claim 52 wherein said step of controllably adding a titrant to said solution within said solution containment element comprises the step of adding said titrant at an optimal solubility reduction response rate.
56. A titration method as described in claim 52 further comprising the step of maintaining said solution at a desired temperature.
57. A titration method as described in claim 52 wherein said step of excluding gas from said solution comprises the step of hermetically sealing.
58. A titration method as described in claim 52 wherein said step of monitor a parameter of said solution comprises the step of spectrophotometrically monitoring.
59. A titration method as described in claim 52 wherein said step of achieving a threshold solution change comprises the step of achieving onset of flocculation.
60. A titration method as described in claim 52 wherein said step of creating a solution comprises the step of mixing a petrol residua with said solvent.
61. A titration method as described in claim 60 wherein said step of mixing a petroleum residua with said solvent comprises the step of mixing said petroleum residua with a solvent selected from the group consisting o~ toluene and benzene.
62. A titration method as described in claim 52 wherein said step of controllably adding a titrant to said solution within said solution containment element comprises the step of continually adding a titrant selected from the group consisting of:
aliphatic hydrocarbons and alcohol substances.
63. A titration method as described in claim 52 wherein said step of monitoring a parameter of said solution comprises the step of monitoring solution turbidity.
64. A titration method as described in claim 63 wherin said step of monitor solution turbidity comprises the step of spectrophotometrically monitoring.
65. A titration method as described in claim 52 wherein said step of monitor a parameter of said solution comprises the step of circulating said solution through a solution circulation system.
66. A titration method as described in claim 65 wherein said step of circulating said solution through a solution circulation system comprises the step of circulating said solution through a flow cell element.
67. A titration method as described in claim 65 wherein said step circulating said solution through a solution circulation system comprises circulating less than 10%
of an initial solution volume.
68. A titration method as described in claim 52 wherein said step of monitoring a parameter of said solution comprises the step of circulating said solution through a low volume solution circulation system.
69. A titration method as described in claim 58 wherein said step of spectrophotometricaly monitoring comprises the step of config a spectrophotometer to detect change in light transmittance through said solution.
70. A titration method as described in claim 57 wherein said step of hermetically sealing comprises the step of hermetically sealing said solution containment element.
71. A titration method as described in claim 70 wherein said step of hermetically sealing said solution containment element comprises the step of sealing with a Teflon®
lined cap.
72. A titration method as described in claim 70 wherein said step of hermetically sealing further comprises the step of hermetically sealing a titrant containment element.
73. A titration method as described in claim 56 wherein said step of maintaining said solution at a desired temperature comprises the step of operating a joined heat transfer system.
74. A titration method as described in claim 56 wherein said step of maintaining a solution at a desired temperature comprises the step of pumping a fluid.
75. A titration method as described in claim 73 wherein said step of operating a joined heat transfer system comprises the step of pumping a fluid.
76. A titration method as described in claim 52 wherein said step of monitoring a parameter comprises the step of electronic monitoring.
77. A titration method as described in claim 76 wherein said step of electronic monitoring comprises the step of computerized monitoring.
78. A titration method as described in claim 54 wherein said step of determining at least one Heithaus parameter comprises the step of automatically determining at least one Heithaus parameter using a computer program.
79. A titration method as described in either claim 52 or 78 wherein said step of monitoring a parameter of said soluton comprises the step of automatically activating electronic components.
80. A titration method as described in claim 65 wherein said step of circulating said solution through a solution circulation system comprises the step of pumping said solution.
81. A titration method as described in either claim 52 or 80 wherein said step of controllably adding a titrant comprises the step of pumping.
82. A titration method as described in claim 65 wherein said step of circulating said solution through a solution circulation system comprises the step of circulating said solution through tubing having a reduced flow resistance internal surface.
83. A titration method as described in claim 52 wherein said step of determining a characteristic of at least one substance of said solution comprises the step of ascertaining an added titrant amount.
84. A titration method as described in claim 57 wherein said step of excluding gas from said solution further comprises the step of pressurizedly purging substantially all oxygen from said solution containment element.
85. A titration method as described in claim 52 wherein said step of controllably adding a titrant to said solution comprises the step of continually adding said titrant to said solution.
86. A titration method as described in claim 85 wherein said step of continaully adding said titrant to said solution comprises the step of continually adding said titrant at an optimal solubility reduction response rate.
87. A titration apparatus comprising:
a. a titrant containment element;
b. a titrant delivery element responsive to said titrant containment element;
c. a solution containment element fluidicly responsive to said titrant containment element; and d. a gas exclusion element within which said titrant delivery element is operable.
88 A titration apparatus as described in claim 87 and further comprising a solution change detection element which is configured to respond to a solution contained within said solution containment element.
89. A titration apparatus as described in claim 88 and further comprising a solution circulation system responsive to said solution containment element.
90. A titration apparatus as described in claim 88 wherein said solution change detection element comprises a flocculation onset detection element.
91. A titration apparatus as described in claim 88 wherein said solution change detection element comprises a spectrophotometer.
92. A titration apparatus as described in claim 89 wherein said solution circulation system comprises a flow cell element.
93. A titration apparatus as described in claim 92 wherein said solution change detection element is responsive to said flow cell element.
94. A titration apparatus as described in claim 93 wherein said solution change detection element comprises a spectrophotometer.
95. A titration apparatus as described in claim 94 wherein said spectrophotometer comprises a spectrophotometer configured to detect change in light transmittance.
96. A titration apparatus as described in claim 89 wherein said solution circulation system comprises a low volume solution circulation system.
97. A titration apparatus as described in claim 96 wherein said low volume solution circulation system has a volume of not more than about ten per-cent of an initial solution volume before any addition of titrant.
98. A titration apparatus as described in claim 91, 94, or 95 wherein said solution circulation system comprises a low volume solution circulation system.
99. A titration apparatus as described in claim 98 wherein said low volume solution circulation system has a volume of not more than about ten per-cent of an initial solution volume before any addition of titrant.
100. A titration apparatus as described in claim 87 wherein said gas exclusion element comprises at least one hermetic seal.
101. A titration apparatus as described in claim 100 wherein said at least one hermetic seal comprises a solution containment element hermetic seal.
102. A titration apparatus as described in claim 101 wherein said solution containment element hermetic seal comprises a solution-titrant compatible tight fitting titration test container cap.
103. A titration apparatus as described in claim 102 wherein said solution-titrant compatible tight fitting titration test container cap comprises a Teflon®
lined solution containment element cap.
104. A titration apparatus as described in claim 101 wherein said at least one hermetic seal comprises a titrant containment element hermetic seal.
105. A titration apparatus as described in claim 100 wherein said at least one hermetic seal comprises:
a. a solution containment element hermetic seal; and b. a titrant containment element hermetic seal.
106. A titration apparatus as described in claim 87 wherein said titrant delivery element comprises a hermetically sealed titrant delivery element.
107. A titration apparatus as described in claim 87 or 94 and further comprising a temperature maintenance element to which said solution containment element is responsive.
108. A titration apparatus as described in claim 107 wherein said temperature maintenance element to which said solution containment element is responsive comprises a solution containment element heat transfer element.
109. A titration apparatus as described in claim 107 wherein said temperature maintenance element to which said solution containment element is responsive comprises a titrant containment element heat transfer element.
110. A titration apparatus as described in claim 108 wherein said temperature maintenance element to which said solution containment element is responsive further comprises a titrant containment element heat transfer element.
111. A titration apparatus as described in claim 110 wherein said solution containment element heat transfer element and said titrant containment element heat transfer element comprise a joined heat transfer system.
112. A titration apparatus as described in claim 108 or 111 wherein said solution containment element heat transfer element comprise a fluid pump.
113. A titration apparatus as described in claim 88, 89, 90, 91, 92, 95, or 97 and further comprising a threshold change indicator which is responsive to said solution containment element.
114. A titration apparatus as described in claim 113 wherein said threshold change indicator comprises a light transmittance threshold change indicator.
115. A titration apparatus as described in claim 114 and further comprising a system activation element responsive to said light transmittance threshold change indicator.
116. A titration apparatus as described in claim 87, 89, 91, 94, or 95 and further comprising a solvent introduction system to which said solution containment element is responsive.
117. A titration apparatus as described in claim 87, 89, 91, 94, or 95 and further comprising an automatic solvent introduction system to which said solution containment element is responsive.
118. A titration apparatus as described in claim 115 and further comprising and further comprising a solvent introduction system responsive to said system activation element.
119. A titration apparatus as described in claim 87 wherein said titrant delivery element comprises a titrant pump.
120. A titration apparatus as described in claim 89 or 97 wherein said solution circulation system comprises a solution pump.
121. A titration apparatus as described in claim 119 wherein said solution circulation system comprises a solution pump.
122. A titration apparatus as described in claim 119 wherein said titrant delivery element comprises internally Teflon® coated conduit.
123. A titration apparatus as described in claim 120 wherein said solution circulation system comprises internally Teflon® coated conduit.
124. A titration apparatus as described in claim 122 wherein said solution circulation system comprises internally Teflon® coated conduit.
125. A method of preparing a compatible asphaltic composite comprising the steps of:
a. obtaining a first type of asphalt substance;
b. obtaining at least a second type of asphalt substance;

c. affirmatively and accurately determining an optimal asphalt mix ratio between said first type of asphalt substance with at least said second type of asphalt substance; and d. mixing a quantity of said first type of asphalt substance with a quantity of said second type of asphalt substance in accordance with said optimal asphalt mix ratio to produce a commercial quantities of a compatible asphaltic composite.
126. A method of preparing a compatible asphaltic composite as described in claim 125 wherein said step of affirmatively and accurately determining an optimal asphalt mix ratio between said first type of asphalt substance with at least said second type of asphalt substance comprises the step of mixing said first type of asphalt substance with at least said second type of asphalt substance to at least one predetermined ratio to create at least one intermediate asphaltic composite.
127. A method of preparing a compatible asphaltic composite as described in claim 126 wherein said step of affirmatively and accurately determining an optimal asphalt mix ratio between said first type of asphalt substance with at least said second type of asphalt substance further comprises the step of accurately determining the long term compatibility of said at least one intermediate asphaltic composite.
128. A method of preparing a compatible asphaltic composite as described in claim 126 wherein said step of affirmatively and accurately determining an optimal asphalt mix ratio between said first type of asphalt substance with at least said second type of asphalt substance further comprises the step of mixing said first type of asphalt substance with at least said second type of asphalt substance to at least one additional predetermined ratio to create at least one additional intermediate asphaltic composite.
129. A method of preparing a compatible asphaltic composite as described in claim 128 wherein said step of affirmatively and accurately determining an optimal asphalt mix ratio between said first type of asphalt substance with at least said second type of asphalt substance further comprises the step of accurately determining the long term compatibility of said at least one additional intermediate asphaltic composite.
130. A method of preparing a compatible asphaltic composite as described in claim 129 wherein said step of affirmatively and accurately determining an optimal asphalt mix ratio between said first type of asphalt substance with at least said second type of asphalt substance further comprises the step of accurately determining a first set of Heithaus parameters for said intermediate asphaltic composite.
131. A method of preparing a compatible asphaltic composite as described in claim 130 wherein said step of affirmatively and accurately determining an optimal asphalt mix ratio between said first type of asphalt substance with at least said second type of asphalt substance further comprises the step of accurately determining an additional set of Heithaus parameters for at least one additional intermediate asphaltic composite.
132. A method of preparing a compatible asphaltic composite as described in claim 131 wherein said step of affirmatively and accurately determining an optimal asphalt mix ratio between said first type of asphalt substance with at least said second type of asphalt substance further comprises the step of accurately generating a first compatibility measurement of at least one intermediate asphaltic composite.
133. A method of preparing a compatible asphaltic composite as described in claim 132 wherein said step of affirmatively and accurately determining an optimal asphalt mix ratio between said first type of asphalt substance with at least said second type of asphalt substance further comprises the step of accurately generating at least one additional compatibility measurement of at least one additional intermediate asphaltic composite.
134. A method of preparing a compatible asphaltic composite as described in claim 133 wherein said step of affirmatively and accurately determining an optimal asphalt mix ratio between said first type of asphalt substance with at least said second type of asphalt substance further comprises the steps of:
a. comparing a plurality of compatibility measurements of intermediate asphaltic composites; and b. selecting an optimal asphalt mix ratio based upon said plurality of compatibility measurements.
135. A method of preparing a compatible asphaltic composite as described in claim 134 wherein said step of mixing a quantity of said first type of asphalt substance with a quantity said second type of asphalt substance in accordance with said optimal asphalt mix ratio to producing a commercial quantities of a compatible asphaltic composite comprises the step of mixing a tonnage amount of said first type of asphalt substance with a tonnage amount of said second type of asphalt substance in accordance with said optimal asphalt mix ratio to producing a commercial quantities of a compatible asphaltic composite.
136. A compatible blended asphalt product comprising:
a. a commercial quantity of a first superior character asphalt substance; and b. a commercial quantity of maximal blend ratio of at least a second inferior character asphalt substance.
137. A method of preparing a compatible asphaltic composite comprising the steps of:
a. obtaining a first type of asphalt substance;
b. obtaining at least a second type of asphalt substance;
c. mixing a quantity of said first type of asphalt substance with a quantity said second type of asphalt substance to create an intermediate asphaltic composite with a predetermined ratio; and d. accurately generating a compatibility measurement of said intermediate asphaltic composite.
138. A method of preparing a compatible asphaltic composite as described in claim 137 wherein said second type of asphalt substance comprises a replacement asphaltic substance, and further comprising the steps of:
a. accepting a required specification range for a character of an asphaltic composite; and b. determining a mix ratio to produce an asphaltic composite within said required specification range; and c. mixing a quantity of said first type of asphalt substance with a quantity said replacement asphalt substance to said mix ratio to create an asphaltic composite within said required specification range.
139. A compatible asphaltic composite produced according to any of the aforementioned steps.
140. A titration apparatus comprising:
a. a titrant containment element;
b. a titrant delivery element responsive to said titrant containment element;
c. a composite asphalt containment element capable of containing a composite asphalt substance composed at least of a first type of asphalt substance and a second type of asphalt substance and fluidicly responsive to said titrant containment element; and d. an optimal mix ratio determination system configured to respond to a composite asphalt substance contained within said composite asphalt containment element.
141. A titration apparatus as described in claim 140 wherein said optimal mix ratio determination system comprises a spectrophotometer.
142. A titration apparatus as described in claim 140 and further comprising multiple composite asphalt containment elements.
143. A titration apparatus as described in claim 142 wherein said optimal mix ratio determination system comprises multiple solution character determination elements.
144. A titration apparatus as described in claim 143 wherein said optimal mix ratio determination system further comprises a long term compatibility determination element.
145. A titration apparatus as described in claim 142 wherein said optimal mix ratio determination system comprises a Heithaus parameter determination element.
146. A titration apparatus as described in claim 145 wherein said Heithaus parameter determination element comprises a multiple Heithaus parameter determination element.
CA002437652A 2001-02-05 2002-02-05 Automated flocculation titrimeter system Expired - Lifetime CA2437652C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US26655501P 2001-02-05 2001-02-05
US60/266,555 2001-02-05
PCT/US2002/003983 WO2002063292A1 (en) 2001-02-05 2002-02-05 Automated flocculation titrimeter system

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CA2437652A1 true CA2437652A1 (en) 2002-08-15
CA2437652C CA2437652C (en) 2009-12-29

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US7736900B2 (en) 2010-06-15
US8236564B2 (en) 2012-08-07
WO2002063292A1 (en) 2002-08-15
US20100251935A1 (en) 2010-10-07
CA2437652C (en) 2009-12-29
EP1393063A1 (en) 2004-03-03

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