Claims
- 1. A polymerization process comprising bringing an olefin-containing feed into contact with a catalyst under conditions sufficient to effect polymerization of at least a portion of the olefin content of the feed; wherein said catalyst comprises calcium silicate treated with at least one acid; wherein the treated calcium silicate is heated to a temperature of at least about 100.degree. C. and contacted with nitrogen gas; and wherein said at least one acid is selected from sulfuric acid, phosphoric acid and nitric acid.
- 2. A process in accordance with claim 1 wherein said acid is sulfuric acid.
- 3. A process in accordance with claim 1 wherein said acid is orthophosphoric acid.
- 4. A process in accordance with claim 1 wherein said acid is nitric acid.
- 5. A polymerization process comprising bringing an olefin-containing feed into contact with a catalyst under conditions sufficient to effect polymerization of at least a portion of the olefin content of the feed; wherein said catalyst comprises calcium silicate treated with at least one acid; wherein said calcium silicate is treated with about 20 to about 90 weight percent of the acid based upon the total amount of calcium silicate and acid; and wherein said at least one acid is selected from sulfuric acid, phosphoric acid and nitric acid.
- 6. A process in accordance with claim 5 wherein said calcium silicate is treated with about 70 to about 85 weight percent of the acid based upon the total amount of calcium silicate and acid.
Parent Case Info
This application is a divisional application of application Ser. No. 448,558 filed Dec. 10, 1982, now U.S. Pat. No. 4,425,226.
US Referenced Citations (9)
Foreign Referenced Citations (1)
Number |
Date |
Country |
511556 |
Aug 1939 |
GBX |
Divisions (1)
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Number |
Date |
Country |
Parent |
448558 |
Dec 1982 |
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