ES433611A1 - Purification of low pressure polyolefins - Google Patents

Purification of low pressure polyolefins

Info

Publication number
ES433611A1
ES433611A1 ES433611A ES433611A ES433611A1 ES 433611 A1 ES433611 A1 ES 433611A1 ES 433611 A ES433611 A ES 433611A ES 433611 A ES433611 A ES 433611A ES 433611 A1 ES433611 A1 ES 433611A1
Authority
ES
Spain
Prior art keywords
low pressure
water
purification
combinations
periodic system
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
ES433611A
Other languages
Spanish (es)
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.)
Ruhrchemie AG
Original Assignee
Ruhrchemie 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 Ruhrchemie AG filed Critical Ruhrchemie AG
Publication of ES433611A1 publication Critical patent/ES433611A1/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)
  • Catalysts (AREA)

Abstract

Procedure for the fine purification of low pressure polyolefins; which have been manufactured using catalytic systems based on combinations with halogen content of the elements included in the fourth to the sixth secondary group of the Periodic system, as well as organic combinations of the metals that correspond to the first until the third group of the periodic system in the presence of organic diluents by means of the treatment with water that in part can be applied as water vapor; characterized in that at least part of the water is continuously circulated through an ion exchanger and returned to the treatment area. (Machine-translation by Google Translate, not legally binding)
ES433611A 1974-01-10 1975-01-07 Purification of low pressure polyolefins Expired ES433611A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742400977 DE2400977C3 (en) 1974-01-10 1974-01-10 Process for the fine cleaning of low-pressure polyethylene

Publications (1)

Publication Number Publication Date
ES433611A1 true ES433611A1 (en) 1976-12-01

Family

ID=5904457

Family Applications (1)

Application Number Title Priority Date Filing Date
ES433611A Expired ES433611A1 (en) 1974-01-10 1975-01-07 Purification of low pressure polyolefins

Country Status (8)

Country Link
JP (1) JPS5720322B2 (en)
CA (1) CA1050198A (en)
DE (1) DE2400977C3 (en)
ES (1) ES433611A1 (en)
FR (1) FR2257603B1 (en)
GB (1) GB1479831A (en)
IT (1) IT1026303B (en)
NL (1) NL156149B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5529439Y2 (en) * 1975-07-21 1980-07-12
ES8504848A1 (en) * 1983-11-24 1985-05-01 Empresa Nac Petroleo Process for the polymerisation and the copolymerisation of ethylene at high pressure and temperature in the presence of Ziegler-type catalysts.
GB9010461D0 (en) * 1990-05-10 1990-07-04 Dow Stade Gmbh Removal of residual acid from chlorinated polymers

Also Published As

Publication number Publication date
FR2257603A1 (en) 1975-08-08
NL156149B (en) 1978-03-15
JPS5720322B2 (en) 1982-04-28
DE2400977B2 (en) 1980-05-29
JPS50101480A (en) 1975-08-12
CA1050198A (en) 1979-03-06
IT1026303B (en) 1978-09-20
FR2257603B1 (en) 1979-02-23
DE2400977A1 (en) 1975-07-17
NL7416956A (en) 1975-07-14
GB1479831A (en) 1977-07-13
DE2400977C3 (en) 1981-02-05

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