US2335485A - Flotation of cement minerals - Google Patents

Flotation of cement minerals Download PDF

Info

Publication number
US2335485A
US2335485A US341438A US34143840A US2335485A US 2335485 A US2335485 A US 2335485A US 341438 A US341438 A US 341438A US 34143840 A US34143840 A US 34143840A US 2335485 A US2335485 A US 2335485A
Authority
US
United States
Prior art keywords
flotation
froth flotation
cement
alcohol
ethyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US341438A
Inventor
Ludwig J Christmann
Stephen E Erickson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Cyanamid Co filed Critical American Cyanamid Co
Priority to US341438A priority Critical patent/US2335485A/en
Priority to US489814A priority patent/US2377129A/en
Application granted granted Critical
Publication of US2335485A publication Critical patent/US2335485A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/004—Organic compounds
    • B03D1/008—Organic compounds containing oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2203/00—Specified materials treated by the flotation agents; specified applications
    • B03D2203/02—Ores

Definitions

  • the present invention relates to the froth flotation of cement minerals and more specifically relates to a method of improving the promoting power 01' the promoters ordinarily employed in concentrating cement ore values by froth flotation.
  • the values of cement ores can be concentrated or recovered by froth flotation processes in which fatty acid substances are employed as promoters.
  • promoters used heretofore are the free fatty acids themselves such as oleic acid, fish oil fatty acids, talloel, fatty acid soaps, and the like.
  • these various promoters may be mixed with an alkali such as caustic soda along with a water-immiscible oil such as fuel oil and may or not also contain a frother such as pine oil or kerosene.
  • the promoting power of the fatty acid type promoters employed in concentrating cement materials by froth flotation can very greatly be increased by adding a low percentage of an aliphatic alcohol or aliphatic ether alcohol to the promoter prior to the froth flotation operation.
  • Some of the prior processes have used alcoholic solutionsof flotation reagents, e. g., where the alcohol used is equal'to or greater than the amount of flotation reagent. In such processes the alcohol was used as a solvent for the flotation reagents and was merely a method of obtaining the flotation reagents in highly concentrated form.
  • the fatty acid type flotation reagent is diluted with about 20% or less of analcohol to increase the promoting power.
  • the quantity of alcohol employed in carrying out the present invention is very much less than the quantities employed as solvents in the prior solution methods.
  • the exact reason why the promoting power of the cement flotation promoters is increased by the diluting with a small amount of an alcohol has not been deflnitely determined and we do not desire therefore to limit the present invention to any theory or explanation as to why the promoting power is increased.
  • the fatty acid promoter. is diluted with about 20% or less of an aliphatic alcohol or aliphatic ether alcohol.
  • This mixture is then employed in the usual manner for conducting the froth flotation.
  • We may, however, mix the fatty acid alcohol mixture with an equal quantity of fuel oil and then add 5 this 50/50 mixture to the flotation feed or pulp containing the correct quantity of caustic and then condition for a short time prior to the froth flotation.
  • the promoting power of the fatty acid type promoters is increased by diluting with 20% or less of any of the well known aliphatic alcohols or ether alcohols and is not limited to any particular alcohol or ether alcohol.
  • aliphatic alcohols that have been found to be useful are those such as methyl, ethyl, propyl, isopropyl, butyl, iso-butyl, octyl; the polyhydroxy alcohols such as glycol, diethylene glycol, or polyethylene glycols, and the various ether alcohols such as mono-methyl ether of diethylene glycol, mono-ethyl ether of diethylene glycol, mono-butyl ether of diethylene glycol and the like.
  • the term aliphatic alcohol as used in the appended claims is intended to include the "unsubstituted monoand poly-hydric aliphatic alcohols and the aliphatic ether alcohols such as those listed above.
  • Example 1 The ore sample used in these tests, was a sample of full size range cement rock slurry (not deslimed) from the Valley Forge Cement Company. The sample in the form of a pulp was thoroughly mixed by agitation with a mechanical agitator. I The procedure following in conducting these 40 flotation tests is described as follows:
  • the improvement in the recovery of cement rock values by froth flotation processes which comprises subjecting an aqueous pulp of cement rock to froth flotation in :the' presence of a cement rock ore promoter of the group consisting of higher fatty acids, mixtures of higher fatty acids, and soaps of such acids, said p'romoters being diluted with at least one aliphatic alcohol, the alcoholic content of said promoter being from about 9% to not more than about 20%.

Description

Patented Nov. 30, 1943 FLOTAIFION OF CEMENT DHNERAIJS Ludwig J. Christmann, Yonkers, N. Y., and Stephen E. Erickson, Springdale, onn., assignors to American Cyanamid Company, New York, N. Y a corporation of Maine No Drawing. Application lune 20, 1940, Serial No. 341,438
10 Claims.
The present invention relates to the froth flotation of cement minerals and more specifically relates to a method of improving the promoting power 01' the promoters ordinarily employed in concentrating cement ore values by froth flotation.
It is well known in the art that the values of cement ores can be concentrated or recovered by froth flotation processes in which fatty acid substances are employed as promoters. Among the more important promoters used heretofore are the free fatty acids themselves such as oleic acid, fish oil fatty acids, talloel, fatty acid soaps, and the like. In carrying out the actual froth flotation operation these various promoters may be mixed with an alkali such as caustic soda along with a water-immiscible oil such as fuel oil and may or not also contain a frother such as pine oil or kerosene.
In accordance with the present invention it has beendisco'vered that the promoting power of the fatty acid type promoters employed in concentrating cement materials by froth flotation can very greatly be increased by adding a low percentage of an aliphatic alcohol or aliphatic ether alcohol to the promoter prior to the froth flotation operation. Some of the prior processes have used alcoholic solutionsof flotation reagents, e. g., where the alcohol used is equal'to or greater than the amount of flotation reagent. In such processes the alcohol was used as a solvent for the flotation reagents and was merely a method of obtaining the flotation reagents in highly concentrated form. In thepresent invention, however, the fatty acid type flotation reagent is diluted with about 20% or less of analcohol to increase the promoting power. The quantity of alcohol employed in carrying out the present invention is very much less than the quantities employed as solvents in the prior solution methods. The exact reason why the promoting power of the cement flotation promoters is increased by the diluting with a small amount of an alcohol has not been deflnitely determined and we do not desire therefore to limit the present invention to any theory or explanation as to why the promoting power is increased.
In carrying out the present invention the fatty acid promoter. is diluted with about 20% or less of an aliphatic alcohol or aliphatic ether alcohol.
This mixture is then employed in the usual manner for conducting the froth flotation. We may, however, mix the fatty acid alcohol mixture with an equal quantity of fuel oil and then add 5 this 50/50 mixture to the flotation feed or pulp containing the correct quantity of caustic and then condition for a short time prior to the froth flotation.
It is an advantage of the present invention that the promoting power of the fatty acid type promoters is increased by diluting with 20% or less of any of the well known aliphatic alcohols or ether alcohols and is not limited to any particular alcohol or ether alcohol. Among the aliphatic alcohols that have been found to be useful are those such as methyl, ethyl, propyl, isopropyl, butyl, iso-butyl, octyl; the polyhydroxy alcohols such as glycol, diethylene glycol, or polyethylene glycols, and the various ether alcohols such as mono-methyl ether of diethylene glycol, mono-ethyl ether of diethylene glycol, mono-butyl ether of diethylene glycol and the like. The term aliphatic alcohol as used in the appended claims is intended to include the "unsubstituted monoand poly-hydric aliphatic alcohols and the aliphatic ether alcohols such as those listed above.
The invention will be further illustrated in connection with the following specific examples.
Example 1 The ore sample used in these tests, was a sample of full size range cement rock slurry (not deslimed) from the Valley Forge Cement Company. The sample in the form of a pulp was thoroughly mixed by agitation with a mechanical agitator. I The procedure following in conducting these 40 flotation tests is described as follows:
Charges of the slurry containing 600 grams of dry solids were transferred to a laboratorysize Fagergren flotation machine and diluted to 22% solids with laboratory water.
Reagents were then added and conditioned with the pulp for one minute. The air valve was opened and the resulting concentrate froth was skimmed off for three minutes. The flotation test products were filtered, dried, weighed v and titrated for CaCOz contents.
The metallurgical data pertaining to these tests are given in the table.
subjecting an aqueous pulp of cement rock to froth flotation in the presence of talloel diluted Metallurgical data Concentrate Tailing Mixture tested. M 10 a 18025 No Per- Dist. Per- Dist. 11
' 0800] Percent Percent ofleed cent percent cent percent Promoter Diluent' weight 0200* 0500. 5751 115 caoo' c4001 1 1.
75.47 40.71 85.70 55.10 50.20 57.24 4481 8.0.8. N555 V 0.55 75.78 75.05 85.07 84.22 24.07 47.88 15.78 r.o.r.4.,00%.. Ethyl 5155551, 102' 0.54 75.40 80.80 84.50 00.58 10.11 88.20 0.57 -F.O.F.A.,507- 1011 1515511 0.05 75.42 75.55 84.80 84.54 2444 48.50 15.00 F. 0.1. .4., 0.. Isopropylalcohoi 10% 0.55 75.57 77.77 88.54 85.86 22.25 I 48.15 14.14 F.O. Sec.butylalcoho,l% 0.57 75.00 80.20 84.57 80.25 10.80 41.25 10.74 F. o. K418901772" Tert. butyi 41551151, 10%.--- 0.05 75.45 7808 84.55 88.51 21.02 41.25 11.40 F. o. r. 4.,0072. s05.0m 18155h51,1o7. 0.57 75.87 80.70 84.52 80.20 10.21 42.02 10.80 F. o. 8.4.00 Tert.'am 151551151.1 0.05 75.50 81.82 82.77 80.70 18.18 42.70 10.30 F. 0. 814,007; 11551151107, 0.57 75.02 75.27 84:57 8485 2475 48.55 .15.15 F. 0. 14.00%. 151 y 5:15: 51 diethylene 0.54
A yco 75.70 80.45 84.55 80.87 10.55 50.22 10.18 F. o. F. 4., 00%.. Butyl 551151 51 515511 715115 0.55
1 81m 1 75.72 1.80 85.54 24.85 78.54 72.84 75.05 11.0.8.8 N555 0.27 75.82 50.87 4.55 50.18 40.58 55.04 45.82 10.88 0078511 0515555 1 0.20 75.00 55.80 85.00 51.18 45.70 52.54 88.82 F, 0. 1 218 807 Ethylaleohol, 0.28 75.40 50.80 85.80- 75.50 58.51 50.00 25.81 F. 0. F. 11., 000"" Isopropylslcohol 10% 0.28 75.55 58.81 84.05 75.80 81.50 57.50 24.11 F. 0. 1 .4., 00 7 Sec. butylalcoho,l0% 0.20 75.20 05.88 84.52 74.01 88.12 50.70 25.00 F.o.r..4.,000". Tert. butyl 51551151, 10% 0.28 75.58 70.77 85.80 78.85 20.28 55.05 21.04 F. o. F. 4.,-00 7Z-- Sec. arnyl 51551151, 10%. 0.2 70.15 57.05 84.32,. 75.27 82.04 58.77 24.73: F. 0. F.A.,907. 'lertam 151551151 10% 0.28 75.55 75.10 85.54 80.71 25.00 54.25 10.20 F. o. F. .4.,00 7. c5 1 5115 1 0.20 75.14 52.05 8457 50.02 87.05 51.88 50.08 100.114.3021.. Etly 5511 41 51 515511 15115 0.20
3 co 75.74 08.05 85.80 75.50 81.04 58.58. 24.70 F. o. F. 4., 00%.. 553, 1 651151 51 diethyleno 0.50.
y 0 28...- 75.07 75.58 85.54 80.15 25.52 45.17 15.87 01515 8510 None 0.00 24 70.04 78.82 85.08 87.55 2 .58 48.58 12.37 01510 851d,00 7... Ethyl 51551151, 1 0.54 75.51 80.10 85.54 00.51 10.81 85. 2 0.40 01515 5515, Ethyl 1551151, 0.57 25 74.85 57.21 80.27 78.05 5270 50.14 21.07 010154510 N 0.28
75.57 72.40 85.84 81.75 27.50 40.08 18.24 015150515, Ethyl 51551151, 102' 0.20 28 75.42 72.85 85.54 82.45 27.15 48.81 17.57 01015 acid,80%.... Ethylalcohoi, 0.20 20 75.20 75.04 80.70 85.57 24.05 4472 14.55 TalloelH None 0.58 75.55 77.04 80.15 85.00 22.05 4472; 15.40 TalloelH, Ethyl 51051151, 107 0.55 81 75.00 70.00 85.78 80.85 25.04 45.55 15.14 T511551H,80% Ethyl 5155115120 75 0.07 52 75.54 50.07 80.54 57.80 40.05 51.57 82.20 TalloelH None; 0.25 75.25 08.50 85.40 .7584 81.40 50.25 28.10 T811551H,00% Ethyl 51551151, 10 7. 0.27 70.18 05.80 84.51 72.54 84.01 50.45 27.40 TalloelH, 1015 714155551, 0.25
1 above 05818 F. 'o. r. .4. 5581;115:511 "81] 511 fatty acid.
What we claim is: v
1. In the recovery of values from cement rock by froth flotation the process which comprises subjecting an aqueous pulp of cement rock to froth flotation in the presence of a fish oil fatty acid diluted with about 10% of ethyl alcohol as the flotation promoter.
2. In the recovery of values from cement rock by froth flotation the process which comprises subjecting an aqueous pulp of cement rock to froth flotation in the presence of a fish oil fatty aciddiluted with about 10% of an aliphatic alcohol.
3. The improvement in the recovery of cement rock values by froth flotation processes which comprises subjecting an aqueous pulp of cement rock to froth flotation in :the' presence of a cement rock ore promoter of the group consisting of higher fatty acids, mixtures of higher fatty acids, and soaps of such acids, said p'romoters being diluted with at least one aliphatic alcohol, the alcoholic content of said promoter being from about 9% to not more than about 20%.
4. In the recovery of values from cement rock by froth flotation, the process which comprises subjecting an aqueous pulp of cement rock to froth flotation in the presence of a fish oil fatty acid diluted with from about 9% to not more than about 20% of an aliphatic alcohol.
5. In the recovery of values from cement rock by froth flotation, the process which comprises with from about 9% to not more,than about 20% of an aliphatic alcohol. g
6. In the recovery of values from cement rock by froth flotation, the process which comprises subjecting an aqueous pulp of cement rock to froth flotation in the presence of talloel diluted with about 10% of an aliphatic alcohol. p
7. In the recovery of values from cement rock by froth flotation, the process which comprises subjecting an aqueous'pulp of cement rock to froth flotation in the presence of talloel diluted with about 10% of ethyl alcohol.
8. In the recovery of values from cement rock by froth flotation, the process which'comprises subjecting an aqueous pulp of cement rock to froth flotation in the presence of oleic acid diluted with from about 9% to not more than about 20% of an aliphatic alcohol.
9. In the recovery of values from cement rock by froth flotation, the process which comprises subjecting an aqueous pulp of cementrock to froth flotation-in the presence of oleic acid diluted with about 10% of an aliphatic alcohol.
10. In the recovery of values from cement rock by froth flotation, the process which comprises subjecting an aqueous pulp of cement rock to froth flotation in the presence of oleic acid diluted with about 10% of ethyl alcohol.
LUDWIG J. CI-Il'tIS'I'MANN. STEPHEN E. ERICKSON.
US341438A 1940-06-20 1940-06-20 Flotation of cement minerals Expired - Lifetime US2335485A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US341438A US2335485A (en) 1940-06-20 1940-06-20 Flotation of cement minerals
US489814A US2377129A (en) 1940-06-20 1943-06-05 Flotation of phosphate minerals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US341438A US2335485A (en) 1940-06-20 1940-06-20 Flotation of cement minerals

Publications (1)

Publication Number Publication Date
US2335485A true US2335485A (en) 1943-11-30

Family

ID=23337572

Family Applications (1)

Application Number Title Priority Date Filing Date
US341438A Expired - Lifetime US2335485A (en) 1940-06-20 1940-06-20 Flotation of cement minerals

Country Status (1)

Country Link
US (1) US2335485A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865718A (en) * 1972-12-07 1975-02-11 Dow Chemical Co Frothers for the flotation of sulfidic ores
US3909399A (en) * 1972-05-08 1975-09-30 Vojislav Petrovich Froth flotation method for recovery of minerals
US4337149A (en) * 1981-05-11 1982-06-29 Sherex Chemical Company, Inc. Promoters for use in the anionic circuit of froth flotation of mineral ores
US5057209A (en) * 1989-04-11 1991-10-15 The Dow Chemical Company Depression of the flotation of silica or siliceous gangue in mineral flotation
US5124028A (en) * 1990-06-28 1992-06-23 The Dow Chemical Company Froth flotation of silica or siliceous gangue
US5131600A (en) * 1989-02-13 1992-07-21 The Dow Chemical Company Alkanol amine grinding aids
US6994142B2 (en) 2004-05-10 2006-02-07 Murphy Willis A Laminating machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909399A (en) * 1972-05-08 1975-09-30 Vojislav Petrovich Froth flotation method for recovery of minerals
US3865718A (en) * 1972-12-07 1975-02-11 Dow Chemical Co Frothers for the flotation of sulfidic ores
US4337149A (en) * 1981-05-11 1982-06-29 Sherex Chemical Company, Inc. Promoters for use in the anionic circuit of froth flotation of mineral ores
US5131600A (en) * 1989-02-13 1992-07-21 The Dow Chemical Company Alkanol amine grinding aids
US5057209A (en) * 1989-04-11 1991-10-15 The Dow Chemical Company Depression of the flotation of silica or siliceous gangue in mineral flotation
US5124028A (en) * 1990-06-28 1992-06-23 The Dow Chemical Company Froth flotation of silica or siliceous gangue
US6994142B2 (en) 2004-05-10 2006-02-07 Murphy Willis A Laminating machine

Similar Documents

Publication Publication Date Title
US2377129A (en) Flotation of phosphate minerals
US2312466A (en) Oxygen-bearing ore flotation
US4158623A (en) Process for froth flotation of phosphate ores
US2857331A (en) Flotation reagent
US2335485A (en) Flotation of cement minerals
US2342277A (en) Separation of pyrite, arsenopyrite, and pyrrhotite by flotation
US2070076A (en) Separation of molybdenite from copper sulphides
US2492936A (en) Differential froth flotation of sulfide ores
US2578790A (en) Froth flotation of ferruginous impurities from finely divided granite rock
US2074699A (en) Flotation process
US2278060A (en) Mineral concentration
US2336868A (en) Concentration of acidic minerals
US2312387A (en) Froth flotation of acidic minerals
US4207178A (en) Process for beneficiation of phosphate and iron ores
US1364308A (en) Flotation of minerals
US4330398A (en) Flotation of phosphate ores with anionic agents
US2298281A (en) Process of flotation separation of ore
US2364272A (en) Mineral concentration
US2126292A (en) Process of mineral concentration
US4138350A (en) Collector combination for non-sulfide ores comprising a fatty acid and a sulfosuccinic acid monoester or salt thereof
US2316743A (en) Flotation of molybdenite
US2610738A (en) Froth flotation of monazite from heavy gravity minerals
US2321186A (en) Froth flotation of acidic minerals
US1952907A (en) Method of flotation of oxidized ores
US1761546A (en) Concentration of phosphate-bearing material