GB958862A - Improvements in or relating to purification of polyolefins - Google Patents

Improvements in or relating to purification of polyolefins

Info

Publication number
GB958862A
GB958862A GB3234362A GB3234362A GB958862A GB 958862 A GB958862 A GB 958862A GB 3234362 A GB3234362 A GB 3234362A GB 3234362 A GB3234362 A GB 3234362A GB 958862 A GB958862 A GB 958862A
Authority
GB
United Kingdom
Prior art keywords
slurry
alkanol
alcohol
catalysts
polyolefins
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
GB3234362A
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.)
Hercules Powder Co
Original Assignee
Hercules Powder 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 Hercules Powder Co filed Critical Hercules Powder Co
Publication of GB958862A publication Critical patent/GB958862A/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
    • C08F6/02—Neutralisation of the polymerisation mass, e.g. killing the catalyst also removal of catalyst residues

Abstract

Stereoregular polymers of 1-olefins made by using Ziegler-Natta-type polymerization catalysts are recovered and purified by adding an alkanol to the slurry subsequently adding at least 0.5% by volume, based on the diluent of hydrochloric acid having a concentration of at least 20% to the alkanol-treated slurry, and then extracting the slurry with an aqueous liquid, e.g. a solution of sodium hydroxide. The 1-olefin may be ethylene, propylene, butene-1, or 3-methyl-pentene-1. The Specification contains a long list of catalysts. The exemplified catalyst is T1Cl3 plus diethylaluminium chloride. The alcohol may be any alcohol from methanol to dodecanol, preferably n-butanol.
GB3234362A 1961-09-13 1962-08-22 Improvements in or relating to purification of polyolefins Expired GB958862A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13774961A 1961-09-13 1961-09-13

Publications (1)

Publication Number Publication Date
GB958862A true GB958862A (en) 1964-05-27

Family

ID=22478890

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3234362A Expired GB958862A (en) 1961-09-13 1962-08-22 Improvements in or relating to purification of polyolefins

Country Status (4)

Country Link
DE (1) DE1520059A1 (en)
FR (1) FR1339013A (en)
GB (1) GB958862A (en)
NL (1) NL283195A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142039A (en) * 1976-07-09 1979-02-27 Societe Chimique Des Charbonnages Cdf Chimie Process for removing catalyst residues from polyolefins
GB2132214A (en) * 1982-12-24 1984-07-04 Bp Chem Int Ltd L-olefin polymers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4940833A (en) * 1988-11-29 1990-07-10 Phillips Petroleum Company Olefin monomer separation process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142039A (en) * 1976-07-09 1979-02-27 Societe Chimique Des Charbonnages Cdf Chimie Process for removing catalyst residues from polyolefins
GB2132214A (en) * 1982-12-24 1984-07-04 Bp Chem Int Ltd L-olefin polymers

Also Published As

Publication number Publication date
FR1339013A (en) 1963-10-04
NL283195A (en)
DE1520059A1 (en) 1969-05-14

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