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JPS54142292A - Separation of atactic polypropylene from hydrocarbon solvents and its device - Google Patents

Separation of atactic polypropylene from hydrocarbon solvents and its device

Info

Publication number
JPS54142292A
JPS54142292A JP5416178A JP5416178A JPS54142292A JP S54142292 A JPS54142292 A JP S54142292A JP 5416178 A JP5416178 A JP 5416178A JP 5416178 A JP5416178 A JP 5416178A JP S54142292 A JPS54142292 A JP S54142292A
Authority
JP
Japan
Prior art keywords
solvents
solution
heated
soluble part
atactic polypropylene
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.)
Pending
Application number
JP5416178A
Other languages
Japanese (ja)
Inventor
Shinichi Saito
Mikiro Nakato
Hiroshi Yamamoto
Masatoshi Takeuchi
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP5416178A priority Critical patent/JPS54142292A/en
Priority to FR7910695A priority patent/FR2424288A1/en
Priority to BE0/194869A priority patent/BE875891A/en
Priority to DE19792917171 priority patent/DE2917171A1/en
Publication of JPS54142292A publication Critical patent/JPS54142292A/en
Pending 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

Landscapes

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

Abstract

PURPOSE: To separate atactic polypropylene from hydrocarbon solvents efficiently in one stage, by pressurizing a polypropylene solution to such a pressure as not to vaporize the solvents in a preheater, and by feeding the solution heated to a temperature below the critical temperature to a flush drum.
CONSTITUTION: A solution of soluble propylene homo-or copolymer in hydrocarbons is pressurized to such a pressure as not to voporize the solvents in a preheater, and heated to a temperature below the critical temperature of the solvents, then fed through a reducing valve to a flash drum comprising vapor risers, a jacket, soluble part outlet, and heating coil of the soluble part. The soluble part is recovered from the outlet in a state heated at 170°C or above, and hydrocarbon vapors are cooled in or outside the flash drum to 170°C or below, condensed and recovered.
COPYRIGHT: (C)1979,JPO&Japio
JP5416178A 1978-04-27 1978-04-27 Separation of atactic polypropylene from hydrocarbon solvents and its device Pending JPS54142292A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP5416178A JPS54142292A (en) 1978-04-27 1978-04-27 Separation of atactic polypropylene from hydrocarbon solvents and its device
FR7910695A FR2424288A1 (en) 1978-04-27 1979-04-26 Atactic polypropylene recovery from hydrocarbon soln. - by flash evaporation of solvent under controlled pressure and temp. conditions
BE0/194869A BE875891A (en) 1978-04-27 1979-04-26 PROCESS FOR SEPARATING AN ATACTIC PROPYLENE POLYMER
DE19792917171 DE2917171A1 (en) 1978-04-27 1979-04-27 METHOD AND DEVICE FOR SEPARATING A HYDROCARBON SOLVENT AND A PROPYLENE POLYMERIZED THEREOF

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5416178A JPS54142292A (en) 1978-04-27 1978-04-27 Separation of atactic polypropylene from hydrocarbon solvents and its device

Publications (1)

Publication Number Publication Date
JPS54142292A true JPS54142292A (en) 1979-11-06

Family

ID=12962812

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5416178A Pending JPS54142292A (en) 1978-04-27 1978-04-27 Separation of atactic polypropylene from hydrocarbon solvents and its device

Country Status (4)

Country Link
JP (1) JPS54142292A (en)
BE (1) BE875891A (en)
DE (1) DE2917171A1 (en)
FR (1) FR2424288A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115490786A (en) * 2022-09-23 2022-12-20 杭州双安科技有限公司 Method for recovering solvent and dehydrating by solution polymerization process

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0476776A1 (en) * 1990-09-17 1992-03-25 Stork X-Cel B.V. Method for separating a mixture of a solvent and a plastic and installation for using the method
DE19829898C2 (en) * 1998-07-06 2000-12-07 Richard Draeger Process for the production of recycled plastics
US8850995B2 (en) 2009-02-02 2014-10-07 Deere & Company Seeding machine with seed delivery system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2358423A1 (en) * 1976-07-12 1978-02-10 Ato Chimie ISOTACTIC AND ATACTIC POLYPROPYLEN SEPARATION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115490786A (en) * 2022-09-23 2022-12-20 杭州双安科技有限公司 Method for recovering solvent and dehydrating by solution polymerization process

Also Published As

Publication number Publication date
BE875891A (en) 1979-10-26
FR2424288B1 (en) 1983-05-13
DE2917171A1 (en) 1979-11-08
FR2424288A1 (en) 1979-11-23

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