GB813880A - Improvements in or relating to the polymerisation of ethylene - Google Patents
Improvements in or relating to the polymerisation of ethyleneInfo
- Publication number
- GB813880A GB813880A GB10900/57A GB1090057A GB813880A GB 813880 A GB813880 A GB 813880A GB 10900/57 A GB10900/57 A GB 10900/57A GB 1090057 A GB1090057 A GB 1090057A GB 813880 A GB813880 A GB 813880A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ethylene
- cyclohexane
- catalyst
- polymerization
- decahydronaphthalene
- 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
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)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
Catalysts used in polymerizing ethylene (see Group IV (a)) are obtained by heating aluminium (preferably in the pure state) with a vanadium chloride (e.g. the tetrachloride) at a temperature up to 300 DEG C. and in the absence of polymerizable hydrocarbons. A diluent which is not contaminated with sulphur-containing impurities may be present in the preparation of the catalyst and specified are benzene, hexane, heptane, decahydronaphthalene, cyclohexane and cyclohexene. Subsequent to polymerization, catalyst residues may be removed from the polymers by the use of methanolic hydrochloric acid, methanol, solvents such as cyclohexane, or a combination of these treatments.ALSO:Ethylene is polymerized by a batchwise or continuous process using as catalyst the product obtained by heating aluminium (preferably in the pure state) with a vanadium chloride (e.g. vanadium tetrachloride) at a temperature up to 300 DEG C. and in the absence of polymerizable hydrocarbons. A diluent which is not contaminated with sulphur-containing impurities, may be used in the preparation of the catalyst and/or in the polymerization and specified are benzene, hexane, heptane, decahydronaphthalene, cyclohexane and cyclohexene. The polymerization may also be effected in bulk and, if desired, technical ethylene may be used. In the example ethylene is repressurized into the autoclave during polymerization. The solid polyethylenes obtained may be purified by the use of methanolic hydrochloric acid, methanol, solvents such as cyclohexane, or a combination of treatments.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1149943T | 1956-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB813880A true GB813880A (en) | 1959-05-27 |
Family
ID=9646975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10900/57A Expired GB813880A (en) | 1956-04-19 | 1957-04-03 | Improvements in or relating to the polymerisation of ethylene |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE556730A (en) |
| FR (1) | FR1149943A (en) |
| GB (1) | GB813880A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1071337B (en) * | 1956-11-14 | 1959-12-17 | Badische Anilin- S. Soda Fabr'k Aktiengesellschaft, Ludwigshafen/Rhem | Process for the continuous polymerization of a olefins and styrene |
-
0
- BE BE556730D patent/BE556730A/xx unknown
-
1956
- 1956-04-19 FR FR1149943D patent/FR1149943A/en not_active Expired
-
1957
- 1957-04-03 GB GB10900/57A patent/GB813880A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1149943A (en) | 1958-01-03 |
| BE556730A (en) |
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