CA2321825A1 - Continuous slurry polymerization volatile removal - Google Patents
Continuous slurry polymerization volatile removal Download PDFInfo
- Publication number
- CA2321825A1 CA2321825A1 CA002321825A CA2321825A CA2321825A1 CA 2321825 A1 CA2321825 A1 CA 2321825A1 CA 002321825 A CA002321825 A CA 002321825A CA 2321825 A CA2321825 A CA 2321825A CA 2321825 A1 CA2321825 A1 CA 2321825A1
- Authority
- CA
- Canada
- Prior art keywords
- polymer solids
- angle
- slurry
- seal chamber
- flash tank
- 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.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/1812—Tubular reactors
- B01J19/1837—Loop-type reactors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/06—Flash distillation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
- B01J8/003—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor in a downward flow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/005—Separating solid material from the gas/liquid stream
- B01J8/0055—Separating solid material from the gas/liquid stream using cyclones
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/005—Separating solid material from the gas/liquid stream
- B01J8/007—Separating solid material from the gas/liquid stream by sedimentation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/38—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it
- B01J8/382—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it with a rotatable device only
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/001—Removal of residual monomers by physical means
- C08F6/003—Removal of residual monomers by physical means from polymer solutions, suspensions, dispersions or emulsions without recovery of the polymer therefrom
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00026—Controlling or regulating the heat exchange system
- B01J2208/00035—Controlling or regulating the heat exchange system involving measured parameters
- B01J2208/0007—Pressure measurement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00539—Pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00743—Feeding or discharging of solids
- B01J2208/00761—Discharging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00743—Feeding or discharging of solids
- B01J2208/00769—Details of feeding or discharging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00823—Mixing elements
- B01J2208/00858—Moving elements
- B01J2208/00867—Moving elements inside the bed, e.g. rotary mixer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00002—Chemical plants
- B01J2219/00004—Scale aspects
- B01J2219/00006—Large-scale industrial plants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00002—Chemical plants
- B01J2219/00027—Process aspects
- B01J2219/00033—Continuous processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00103—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor in a heat exchanger separate from the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00105—Controlling the temperature by indirect heating or cooling employing heat exchange fluids part or all of the reactants being heated or cooled outside the reactor while recycling
- B01J2219/00114—Controlling the temperature by indirect heating or cooling employing heat exchange fluids part or all of the reactants being heated or cooled outside the reactor while recycling involving reactant slurries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00162—Controlling or regulating processes controlling the pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00164—Controlling or regulating processes controlling the flow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00193—Sensing a parameter
- B01J2219/00195—Sensing a parameter of the reaction system
- B01J2219/002—Sensing a parameter of the reaction system inside the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00211—Control algorithm comparing a sensed parameter with a pre-set value
- B01J2219/00213—Fixed parameter value
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00222—Control algorithm taking actions
- B01J2219/00227—Control algorithm taking actions modifying the operating conditions
- B01J2219/00229—Control algorithm taking actions modifying the operating conditions of the reaction system
- B01J2219/00231—Control algorithm taking actions modifying the operating conditions of the reaction system at the reactor inlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00222—Control algorithm taking actions
- B01J2219/00227—Control algorithm taking actions modifying the operating conditions
- B01J2219/00229—Control algorithm taking actions modifying the operating conditions of the reaction system
- B01J2219/00236—Control algorithm taking actions modifying the operating conditions of the reaction system at the reactor outlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00222—Control algorithm taking actions
- B01J2219/00227—Control algorithm taking actions modifying the operating conditions
- B01J2219/0024—Control algorithm taking actions modifying the operating conditions other than of the reactor or heat exchange system
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
Abstract
A process/apparatus is disclosed for continuously separating a liquid medium comprising diluent and unreacted monomers from a polymerization effluent comprising diluent, unreacted monomers and polymer solids, comprising a continuous discharge of the polymerization effluent from a slurry reactor through a discharge valve and transfer conduit into a first intermediate pressure flash tank with a conical bottom defined by substantially straight sides inclined at an angle to that of horizontal equal to or greater than the angle of slide of the slurry/polymer solids and an exit seal chamber of such diameter (d) and length (1) as to maintain a desired volume of concentrated polymer solids/slurry in the exit seal chamber such as to form a pressure seal while continuously discharging a plug flow of concentrated polymer solids/slurry bottom product of said first flash tank from the exit seal chamber through a seal chamber exit reducer with inclined sides defined by substantially straight sides inclined at an angle to that of horizontal equal to or greater than the angle of slide of the polymer solids which remain after removal of about 50 to 100 % of the inert diluent therefrom to a second flash tank at a lower pressure.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7885998P | 1998-03-20 | 1998-03-20 | |
US60/078,859 | 1998-03-20 | ||
US8041298A | 1998-05-18 | 1998-05-18 | |
US09/081,392 | 1998-05-18 | ||
US09/080,412 | 1998-05-18 | ||
US09/081,392 US6281300B1 (en) | 1998-03-20 | 1998-05-18 | Continuous slurry polymerization volatile removal |
PCT/US1999/006102 WO1999047251A1 (en) | 1998-03-20 | 1999-03-19 | Continuous slurry polymerization volatile removal |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2321825A1 true CA2321825A1 (en) | 1999-09-23 |
CA2321825C CA2321825C (en) | 2007-07-10 |
Family
ID=27373361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002321825A Expired - Fee Related CA2321825C (en) | 1998-03-20 | 1999-03-19 | Continuous slurry polymerization volatile removal |
Country Status (9)
Country | Link |
---|---|
US (2) | US6204344B1 (en) |
EP (1) | EP1064086B1 (en) |
JP (1) | JP2002506718A (en) |
CN (1) | CN1166444C (en) |
AU (1) | AU747914B2 (en) |
BR (1) | BR9908487B1 (en) |
CA (1) | CA2321825C (en) |
DE (3) | DE69909263T2 (en) |
WO (1) | WO1999047251A1 (en) |
Families Citing this family (74)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040136881A1 (en) * | 1997-07-15 | 2004-07-15 | Verser Donald W. | Separation of polymer particles and vaporized diluent in a cyclone |
US7033545B2 (en) | 1997-07-15 | 2006-04-25 | Chevon Phillips Chemical Company, Lp | Slurry polymerization reactor having large length/diameter ratio |
US6815511B2 (en) * | 1997-07-15 | 2004-11-09 | Chevron Phillips Chemical Company, Lp | Continuous withdrawal from high solids slurry polymerization |
US6239235B1 (en) * | 1997-07-15 | 2001-05-29 | Phillips Petroleum Company | High solids slurry polymerization |
US20020111441A1 (en) | 1998-03-20 | 2002-08-15 | Kendrick James Austin | Continuous slurry polymerization volatile removal |
KR100531628B1 (en) | 1998-03-20 | 2005-11-29 | 엑손모빌 케미칼 패턴츠 인코포레이티드 | Continuous slurry polymerization volatile removal |
US7268194B2 (en) | 1998-03-20 | 2007-09-11 | Exxonmobil Chemical Patents Inc. | Continuous slurry polymerization process and apparatus |
US6281300B1 (en) | 1998-03-20 | 2001-08-28 | Exxon Chemical Patents, Inc. | Continuous slurry polymerization volatile removal |
CA2379424A1 (en) * | 1999-07-15 | 2001-01-25 | Phillips Petroleum Company | Slotted slurry take off |
DE10001256A1 (en) * | 2000-01-14 | 2001-07-19 | Bayer Ag | Continuous drying and gel formation of polymers containing solvents, e.g. cellulose ether, involves flash evaporation at reduced pressure |
US6487916B1 (en) * | 2000-02-02 | 2002-12-03 | Bechtel Bxwt Idaho, Llc | Ultrasonic flow metering system |
US6566460B1 (en) * | 2000-08-04 | 2003-05-20 | Equistar Chemicals, Lp | Continuous recovery of polymer from a slurry loop reactor |
EP1409126A1 (en) * | 2000-12-15 | 2004-04-21 | Hobolth Instruments APS | Method and apparatus for continuous processing of organic material |
EP1444273B1 (en) * | 2001-11-06 | 2006-10-25 | Chevron Phillips Chemical Company LP | Continuous slurry polymerization volatile removal |
US7116414B2 (en) * | 2001-11-09 | 2006-10-03 | Exxonmobil Chemical Patents Inc. | On-line measurement and control of polymer properties by raman spectroscopy |
JP2005517768A (en) * | 2002-02-19 | 2005-06-16 | エクソンモービル・ケミカル・パテンツ・インク | Continuous slurry polymerization using a loop reactor. |
CN1332985C (en) * | 2002-09-13 | 2007-08-22 | 切夫里昂菲利普化学有限责任公司 | Loop reactor apparatus and polymerization processes with multiple feed points for olefins and catalysts |
US20040116625A1 (en) * | 2002-09-13 | 2004-06-17 | Hottovy John D. | Loop reactor apparatus and polymerization processes with multiple feed points for olefins and catalysts |
CN100384885C (en) * | 2002-09-16 | 2008-04-30 | 切夫里昂菲利普化学有限责任公司 | Process and apparatus for separating diluent from polymer solids |
ATE457321T1 (en) * | 2002-09-16 | 2010-02-15 | Chevron Phillips Chemical Co | METHOD AND DEVICE FOR SEPARATING DILUENT FROM POLYMER SOLIDS |
AU2003272448A1 (en) * | 2002-09-17 | 2004-04-08 | Chevron Phillips Chemical Company Lp | Improved pumping apparatus and process for slurry polymerization in loop reactors |
CN100475851C (en) * | 2002-09-17 | 2009-04-08 | 切夫里昂菲利普化学有限责任公司 | Pumping apparatus and process for slurry polymerization in loop reactors |
EP1542793B1 (en) * | 2002-09-23 | 2007-08-29 | Total Petrochemicals Research Feluy | Slurry loop polyolefin reactor |
CA2501528A1 (en) * | 2002-10-15 | 2004-04-15 | Exxonmobil Chemical Patents Inc. | On-line measurement and control of polymer properties by raman spectroscopy |
WO2004063234A1 (en) * | 2003-01-06 | 2004-07-29 | Exxonmobil Chemical Patents Inc. | On-line measurement and control of polymer product properties by raman spectroscopy |
SA04250276B1 (en) * | 2003-09-24 | 2009-02-07 | باسيل بوليوليفين جي ام بي اتش | Suspension polymerization with high solids concentrations in a loop reactor |
US7400941B2 (en) * | 2004-01-14 | 2008-07-15 | Chrevron Phillips Chemical Company Lp | Method and apparatus for monitoring polyolefin production |
US7119153B2 (en) * | 2004-01-21 | 2006-10-10 | Jensen Michael D | Dual metallocene catalyst for producing film resins with good machine direction (MD) elmendorf tear strength |
EP1586590A1 (en) * | 2004-02-13 | 2005-10-19 | Total Petrochemicals Research Feluy | Transfer vessel between flash tank and purge column for recovering polymer solids |
EP1765884A1 (en) * | 2004-06-21 | 2007-03-28 | ExxonMobil Chemical Patents, Inc., A Corporation of the State of Delaware | Polymerization process |
WO2006009944A2 (en) * | 2004-06-21 | 2006-01-26 | Exxonmobil Chemical Patents Inc. | Polymerization process |
EP1765891A2 (en) * | 2004-06-21 | 2007-03-28 | ExxonMobil Chemical Patents Inc. | Polymerization process |
US20060047029A1 (en) * | 2004-08-27 | 2006-03-02 | Anthony Poloso | Additive package comprising optical brighteners |
ES2416314T3 (en) | 2004-08-27 | 2013-07-31 | Chevron Phillips Chemical Company Lp | Polyolefin production processes |
GB0426058D0 (en) * | 2004-11-26 | 2004-12-29 | Solvay | Chemical process |
GB0426059D0 (en) * | 2004-11-26 | 2004-12-29 | Solvay | Chemical process |
GB0426057D0 (en) | 2004-11-26 | 2004-12-29 | Solvay | Chemical process |
WO2007018773A1 (en) | 2005-07-22 | 2007-02-15 | Exxonmobil Chemical Patents Inc. | On-line analysis of polymer properties for control of a solution phase reaction system |
US7483129B2 (en) * | 2005-07-22 | 2009-01-27 | Exxonmobil Chemical Patents Inc. | On-line properties analysis of a molten polymer by raman spectroscopy for control of a mixing device |
US7505127B2 (en) * | 2005-07-22 | 2009-03-17 | Exxonmobil Chemical Patents Inc. | On-line raman analysis and control of a high pressure reaction system |
US7629421B2 (en) * | 2005-12-21 | 2009-12-08 | Chevron Phillips Chemical Company Lp | Monomer recovery by returning column overhead liquid to the reactor |
EP1839742A1 (en) | 2006-03-30 | 2007-10-03 | Total Petrochemicals Research Feluy | Flushing in a multiple loop reactor |
EP1918308A1 (en) * | 2006-10-30 | 2008-05-07 | Total Petrochemicals Research Feluy | Process for improving the devolatilization of polymer slurry produced in a polymerization reactor |
RU2464281C2 (en) † | 2007-05-18 | 2012-10-20 | Инеос Мэньюфекчуринг Белджиум Нв | Suspension polymerisation |
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1999
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- 1999-03-19 BR BRPI9908487-2A patent/BR9908487B1/en not_active IP Right Cessation
- 1999-03-19 DE DE69938794T patent/DE69938794D1/en not_active Revoked
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BR9908487A (en) | 2000-12-05 |
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