GB799207A - Improvements in working up low pressure polyolefines - Google Patents

Improvements in working up low pressure polyolefines

Info

Publication number
GB799207A
GB799207A GB2697656A GB2697656A GB799207A GB 799207 A GB799207 A GB 799207A GB 2697656 A GB2697656 A GB 2697656A GB 2697656 A GB2697656 A GB 2697656A GB 799207 A GB799207 A GB 799207A
Authority
GB
United Kingdom
Prior art keywords
aluminium
working
low pressure
produced
known manner
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
GB2697656A
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.)
Huels AG
Original Assignee
Chemische Werke Huels AG
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 Chemische Werke Huels AG filed Critical Chemische Werke Huels AG
Publication of GB799207A publication Critical patent/GB799207A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Polyolefines, such as polyethylene, produced by the low pressure process are purified by pretreating the suspension with an alkylene oxide at moderature temperature, prior to working up in known manner. The polymers may be produced in C4 to C12 aliphatic or hydroaromatic hydrocarbons, such as ethyl cyclohexane, using catalysts consisting of mixtures of Group IVa, Va or VIa metal compounds with aluminium, aluminium hydride or organic compounds of aluminium, magnesium, zinc or the alkali metals, such as a mixture from aluminium triisobutyl and titanium tetrachloride. Alkylene oxides specified are ethylene and propylene oxides. The working up in known manner may comprise treatment with anhydrous alcohol, alcoholic or aqueous mineral or complex forming organic acid, or liquid, organic, oxygen containing compounds such as acetone; followed by washing with water.
GB2697656A 1955-11-19 1956-09-04 Improvements in working up low pressure polyolefines Expired GB799207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC12128A DE1006156B (en) 1955-11-19 1955-11-19 Process for processing low-pressure polyolefins

Publications (1)

Publication Number Publication Date
GB799207A true GB799207A (en) 1958-08-06

Family

ID=7015137

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2697656A Expired GB799207A (en) 1955-11-19 1956-09-04 Improvements in working up low pressure polyolefines

Country Status (3)

Country Link
DE (1) DE1006156B (en)
FR (1) FR1158305A (en)
GB (1) GB799207A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912420A (en) * 1957-04-17 1959-11-10 Sun Oil Co Process for polymerizing olefins
BE571954A (en) * 1957-10-21
DE2224558B2 (en) * 1972-05-19 1979-02-22 Basf Ag, 6700 Ludwigshafen Process for reducing the halogen content from catalyst constituents in small-particle polyolefins
DE2258345C3 (en) * 1972-11-29 1980-03-27 Basf Ag, 6700 Ludwigshafen Process for processing small-sized polypropylene obtained by gas phase polymerization using Ziegler-Natta catalysts

Also Published As

Publication number Publication date
DE1006156B (en) 1957-04-11
FR1158305A (en) 1958-06-13

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