GB843027A - Method for recovery of polymers - Google Patents

Method for recovery of polymers

Info

Publication number
GB843027A
GB843027A GB33219/57A GB3321957A GB843027A GB 843027 A GB843027 A GB 843027A GB 33219/57 A GB33219/57 A GB 33219/57A GB 3321957 A GB3321957 A GB 3321957A GB 843027 A GB843027 A GB 843027A
Authority
GB
United Kingdom
Prior art keywords
ethylene
butadiene
propylene
catalyst
specified
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
GB33219/57A
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 GB843027A publication Critical patent/GB843027A/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
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond

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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Polymer associated with solid catalyst and which has been produced in a low-pressure olefin polymerization is treated with an aqueous alkali metal hydroxide solution, the dissolved catalyst separated and the polymer recovered. Specified olefins are ethylene, propylene, 1-butene, 1-pentene, butadiene, ethylene-propylene and ethylene-butadiene, the catalyst being chromium oxide, containing hexavalent chromium, associated with one oxide selected from silica, alumina, zirconia and thoria. Sodium and potassium are the specified alkali metals, and the digestion may take place at least 150 DEG F. for at least 30 minutes. Apparatus for carrying out the process is described. Specifications 790,195 and 804,641 are referred to.
GB33219/57A 1956-11-19 1957-10-24 Method for recovery of polymers Expired GB843027A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US843027XA 1956-11-19 1956-11-19

Publications (1)

Publication Number Publication Date
GB843027A true GB843027A (en) 1960-08-04

Family

ID=22184088

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33219/57A Expired GB843027A (en) 1956-11-19 1957-10-24 Method for recovery of polymers

Country Status (1)

Country Link
GB (1) GB843027A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012019341A1 (en) * 2010-08-11 2012-02-16 北京吉天仪器有限公司 Method for extracting hexavalent chromium from plastic

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012019341A1 (en) * 2010-08-11 2012-02-16 北京吉天仪器有限公司 Method for extracting hexavalent chromium from plastic

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