GB849232A - Method and apparatus for purification of solvent used in the polymerization of olefins - Google Patents

Method and apparatus for purification of solvent used in the polymerization of olefins

Info

Publication number
GB849232A
GB849232A GB31674/57A GB3167457A GB849232A GB 849232 A GB849232 A GB 849232A GB 31674/57 A GB31674/57 A GB 31674/57A GB 3167457 A GB3167457 A GB 3167457A GB 849232 A GB849232 A GB 849232A
Authority
GB
United Kingdom
Prior art keywords
recovered
solvent
distillation
returned
polymer
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
Application number
GB31674/57A
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.)
Phillips Petroleum Co
Original Assignee
Phillips Petroleum 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 Phillips Petroleum Co filed Critical Phillips Petroleum Co
Publication of GB849232A publication Critical patent/GB849232A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C08F2/04—Polymerisation in solution
    • C08F2/06—Organic solvent
    • 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
    • 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
    • C08F6/02—Neutralisation of the polymerisation mass, e.g. killing the catalyst also removal of catalyst residues
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers

Abstract

Solvent used in the polymerisation of monoolefins and diolefins having an olefinic linkage in the 1-position and which has been separated and recovered from the polymerisation reactor effluent is distilled, the polymer in solution recovered as a bottom product passed to a flash zone, whence the vaporised solvent is returned to the distillation, the polymer recovered from the flash zone, and solvent free from polymer recovered as an overhead product from the distillation. In a preferred process a portion of the overhead distillation fraction is cooled, condensed, free water removed, part returned as reflux to the distillation, another portion of the condensate, degassed and dehydrated, a portion of the overhead vapours from this step also cooled, condensed, free water removed and returned as reflux to the degassing and dehydrating step, and pure solvent recovered as a bottom product of the degassing and dehydration step. It is preferred that the olefin is a 1-olefin, e.g. ethylene or butadiene, prepared in the presence of an activated chromium oxide-silica-alumina catalyst in solution in a saturated hydrocarbon solvent. Apparatus for carrying out the process is described. Specifications 790,195 and 804,641 are referred to.
GB31674/57A 1956-10-22 1957-10-10 Method and apparatus for purification of solvent used in the polymerization of olefins Expired GB849232A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US849232XA 1956-10-22 1956-10-22

Publications (1)

Publication Number Publication Date
GB849232A true GB849232A (en) 1960-09-21

Family

ID=22188067

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31674/57A Expired GB849232A (en) 1956-10-22 1957-10-10 Method and apparatus for purification of solvent used in the polymerization of olefins

Country Status (1)

Country Link
GB (1) GB849232A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3606861A1 (en) * 1985-03-05 1986-09-11 Mitsui Toatsu Chemicals, Inc., Tokio/Tokyo METHOD FOR CLEANING A POLYMERIZING SOLVENT
EP2492292A1 (en) * 2012-05-29 2012-08-29 Evonik Industries AG Polymerisation of dienes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3606861A1 (en) * 1985-03-05 1986-09-11 Mitsui Toatsu Chemicals, Inc., Tokio/Tokyo METHOD FOR CLEANING A POLYMERIZING SOLVENT
US4725338A (en) * 1985-03-05 1988-02-16 Mitsui Toatsu Chemicals, Incorporated Purification process of polymerization solvent
EP2492292A1 (en) * 2012-05-29 2012-08-29 Evonik Industries AG Polymerisation of dienes
EP2669300A1 (en) * 2012-05-29 2013-12-04 Evonik Industries AG Polymerisation of dienes
WO2013178293A1 (en) * 2012-05-29 2013-12-05 Evonik Industries Ag Polymerization of a diene

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