GB976314A - Improved polymerization process and catalyst - Google Patents
Improved polymerization process and catalystInfo
- Publication number
- GB976314A GB976314A GB20365/63A GB2036563A GB976314A GB 976314 A GB976314 A GB 976314A GB 20365/63 A GB20365/63 A GB 20365/63A GB 2036563 A GB2036563 A GB 2036563A GB 976314 A GB976314 A GB 976314A
- Authority
- GB
- United Kingdom
- Prior art keywords
- catalyst
- pentene
- butene
- zinc
- hydrocarbon radical
- 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
- C08F10/02—Ethene
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
A polymerization catalyst is made by admixing a compound of the formula ZmR2 where R is hydrogen or a hydrocarbon radical, and at least one R is a hydrocarbon radical, with chromium oxide supported on at least one oxide selected from silica, alumina, or thoria. The amount of the zinc compound is 0.1 to 15 weight per cent based on the weight of the supported chromium oxide. The catalyst, optionally in the presence of a hydrocarbon medium, is used to polymerize ethylene alone or in admixture with minor amounts of other olefins such as propylene, 1-butene, 2-butene, isobutylene, 1-pentene, 1-hexene, 4-methyl -1- pentene, 1-octene, 1-decene, or 1-dodecene. The polymerization may be conducted in the gaseous phase, and at a temperature in the range of 100 to 500 DEG F. The Specification lists many suitable zinc compounds of which diethyl and dibutyl zinc are exemplified. U.S.A. Specification 2,944,049 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US20005162A | 1962-06-05 | 1962-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB976314A true GB976314A (en) | 1964-11-25 |
Family
ID=22740114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20365/63A Expired GB976314A (en) | 1962-06-05 | 1963-05-22 | Improved polymerization process and catalyst |
Country Status (4)
| Country | Link |
|---|---|
| BR (1) | BR6349202D0 (en) |
| DE (1) | DE1520532B1 (en) |
| ES (1) | ES287879A1 (en) |
| GB (1) | GB976314A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1645095B1 (en) * | 1965-01-15 | 1972-03-16 | Phillips Petroleum Co | PROCESS FOR THE POLYMERIZATION OF AETHYLENE |
| US4376191A (en) | 1981-10-01 | 1983-03-08 | Union Carbide Corporation | Use of dialkylzinc compounds to initiate polymerization of ethylene with chromium oxide catalysts |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3037008A (en) * | 1960-04-06 | 1962-05-29 | Standard Oil Co | Polymerization process |
-
1963
- 1963-05-10 DE DE1963P0031785 patent/DE1520532B1/en active Pending
- 1963-05-10 ES ES287879A patent/ES287879A1/en not_active Expired
- 1963-05-17 BR BR149202/63A patent/BR6349202D0/en unknown
- 1963-05-22 GB GB20365/63A patent/GB976314A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1645095B1 (en) * | 1965-01-15 | 1972-03-16 | Phillips Petroleum Co | PROCESS FOR THE POLYMERIZATION OF AETHYLENE |
| US4376191A (en) | 1981-10-01 | 1983-03-08 | Union Carbide Corporation | Use of dialkylzinc compounds to initiate polymerization of ethylene with chromium oxide catalysts |
Also Published As
| Publication number | Publication date |
|---|---|
| ES287879A1 (en) | 1963-11-01 |
| BR6349202D0 (en) | 1973-06-12 |
| DE1520532B1 (en) | 1971-02-11 |
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