GB849120A - Improved method and apparatus for recovery of solid polymer from vaporized solvent - Google Patents

Improved method and apparatus for recovery of solid polymer from vaporized solvent

Info

Publication number
GB849120A
GB849120A GB31678/57A GB3167857A GB849120A GB 849120 A GB849120 A GB 849120A GB 31678/57 A GB31678/57 A GB 31678/57A GB 3167857 A GB3167857 A GB 3167857A GB 849120 A GB849120 A GB 849120A
Authority
GB
United Kingdom
Prior art keywords
zone
solvent
vapour
polymer
cold
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
GB31678/57A
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 GB849120A publication Critical patent/GB849120A/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
    • C08F6/06—Treatment of polymer solutions
    • C08F6/12—Separation of polymers from solutions
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Solid olefin polymer, e.g. polyethylene, is separated from a suspension thereof in solvent vapour by contacting this vapour suspension removed from a zone of sub-atmospheric pressure with cold liquid solvents, passing the resulting slurry of the polymer to a liquid-solids separating zone and recovering a polymer-free solvent vapour from the contacting step. The polymerisation is preferably carried out at low pressure using chromium oxide catalyst. The concentrated slurry from the separation zone may be returned to the zone of sub-atmospheric pressure while the cold liquid solvent may be applied as a spray. The cold liquid solvent, which may be the same as the solvent vapour, may be on the surface of a body contained in a second zone of reduced pressure, the polymercontaining vapour being sprayed thereon, a spray of additional cold solvent being introduced to this zone above the surface a stream of polymercontaining liquid solvent being withdrawn from the zone and filtered. Apparatus for carrying out the process is described. Specifications 790,195 and 804,641 are referred to.
GB31678/57A 1956-10-22 1957-10-10 Improved method and apparatus for recovery of solid polymer from vaporized solvent Expired GB849120A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US849120XA 1956-10-22 1956-10-22

Publications (1)

Publication Number Publication Date
GB849120A true GB849120A (en) 1960-09-21

Family

ID=22187985

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31678/57A Expired GB849120A (en) 1956-10-22 1957-10-10 Improved method and apparatus for recovery of solid polymer from vaporized solvent

Country Status (1)

Country Link
GB (1) GB849120A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006084584A1 (en) * 2005-02-09 2006-08-17 Vinnolit Gmbh & Co. Kg Process for the polymerisation of vinyl-containing monomers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006084584A1 (en) * 2005-02-09 2006-08-17 Vinnolit Gmbh & Co. Kg Process for the polymerisation of vinyl-containing monomers
US8507619B2 (en) 2005-02-09 2013-08-13 Vinnolit Technologie Gmbh & Co. Kg Process for the polymerisation of vinyl-containing monomers

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