GB1420837A - Method of reducing the content in particulate polyolefins of halogen derived from catalyst components - Google Patents

Method of reducing the content in particulate polyolefins of halogen derived from catalyst components

Info

Publication number
GB1420837A
GB1420837A GB2372573A GB2372573A GB1420837A GB 1420837 A GB1420837 A GB 1420837A GB 2372573 A GB2372573 A GB 2372573A GB 2372573 A GB2372573 A GB 2372573A GB 1420837 A GB1420837 A GB 1420837A
Authority
GB
United Kingdom
Prior art keywords
polyolefin
content
reducing
catalyst components
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
GB2372573A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1420837A publication Critical patent/GB1420837A/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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1420837 Purifying Ziegler polyolefins BADISCHE ANILIN- & SODA-FABRIK AG 18 May 1973 [19 May 1972] 23725/73 Heading C3P The halogen content of a dry particulate polyolefin, derived from a Ziegler catalyst, is reduced by subjecting the polyolefin to a purification treatment involving the passage of gas therethrough, wherein the purification is effected in a gas phase fluidized bed, the purifying gas being a mixture of nitrogen, steam and an alkylene oxide in the volume ratio 100 : 0À1 to 20 : 0À1 to 20. Typically the polyolefin is polypropylene and the alkylene oxide is propylene oxide.
GB2372573A 1972-05-19 1973-05-18 Method of reducing the content in particulate polyolefins of halogen derived from catalyst components Expired GB1420837A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722224558 DE2224558B2 (en) 1972-05-19 1972-05-19 Process for reducing the halogen content from catalyst constituents in small-particle polyolefins

Publications (1)

Publication Number Publication Date
GB1420837A true GB1420837A (en) 1976-01-14

Family

ID=5845399

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2372573A Expired GB1420837A (en) 1972-05-19 1973-05-18 Method of reducing the content in particulate polyolefins of halogen derived from catalyst components

Country Status (6)

Country Link
AT (1) AT322837B (en)
BE (1) BE799726A (en)
DE (1) DE2224558B2 (en)
FR (1) FR2185639B1 (en)
GB (1) GB1420837A (en)
IT (1) IT985155B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3025051A1 (en) * 1979-07-02 1981-01-08 Montedison Spa METHOD FOR REDUCING THE CONTENT OF HALOGEN COMPOUNDS AND ORGANIC SUBSTANCES OF CATALYST RESIDUES OF CRYSTALLINE OLEFINE POLYMERS OR. -COPOLYMER
DE3108326A1 (en) * 1981-03-05 1982-09-16 Northern Natural Gas Co., 68102 Omaha, Nebr. Process for reducing the halogen content of a particulate polyolefin

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5415313B2 (en) * 1974-04-30 1979-06-13
JPS5830887B2 (en) * 1977-11-11 1983-07-02 住友化学工業株式会社 Method for purifying highly crystalline polyolefin
DE2826623A1 (en) * 1978-06-19 1980-01-03 Basf Ag METHOD FOR REDUCING THE HALOGEN CONTENT OF SMALL PARTICLES BY MEANS OF HALOGEN CATALYSTS OF POLYOLEFINS PRODUCED
DE3122679A1 (en) * 1981-06-06 1982-12-23 Basf Ag, 6700 Ludwigshafen METHOD FOR THE DESODORATION OF FINE-PARTICULATED PROPYLENE POLYMERISATES OBTAINED BY ZIEGLER-NATTA CATALYSTS
DE3130304A1 (en) * 1981-07-31 1983-02-17 Basf Ag, 6700 Ludwigshafen METHOD FOR DESODORING FINE-PARTICULATED ETHYLENE POLYMERISATES BY MEANS OF ZIEGLER CATALYSTS
JPS58111807A (en) * 1981-12-24 1983-07-04 Chisso Corp Odorless polyolefin and its production

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1006156B (en) * 1955-11-19 1957-04-11 Huels Chemische Werke Ag Process for processing low-pressure polyolefins
FR1392774A (en) * 1963-03-22 1965-03-19 Eastman Kodak Co Process for rendering the residues of halogenated polymerization catalysts inert

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3025051A1 (en) * 1979-07-02 1981-01-08 Montedison Spa METHOD FOR REDUCING THE CONTENT OF HALOGEN COMPOUNDS AND ORGANIC SUBSTANCES OF CATALYST RESIDUES OF CRYSTALLINE OLEFINE POLYMERS OR. -COPOLYMER
US4332933A (en) * 1979-07-02 1982-06-01 Montedison S.P.A. Process for treating olefinic polymers with steam
DE3108326A1 (en) * 1981-03-05 1982-09-16 Northern Natural Gas Co., 68102 Omaha, Nebr. Process for reducing the halogen content of a particulate polyolefin

Also Published As

Publication number Publication date
DE2224558B2 (en) 1979-02-22
AT322837B (en) 1975-06-10
FR2185639A1 (en) 1974-01-04
FR2185639B1 (en) 1977-02-11
BE799726A (en) 1973-11-19
DE2224558A1 (en) 1973-12-13
IT985155B (en) 1974-11-30

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930517