US4392984A
Expired / Lapsed
US
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Olefin oligomerization catalysts and a process for their preparation
Assignee: BASF SE
•
Filing: 1981-03-25
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Granted: 1983-07-12
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Expires: 2001-03-25
Abstract
Abstract Catalysts, for olefin oligomerization, whose active material has the empirical formula I APO.sub.4.[P.sub.2 O.sub.5.(H.sub.2 O).sub.n ].sub.a . (XY).sub.b I where A is boron, antimony, bismuth, aluminum and/or 3 equivalents of titanium, X is NH 4 .sup.⊕ and/or an alkali metal cation and/or one equivalent of an alkaline earth metal cation, Y is one equivalent of an anion, a is 0.02-0.2, b is 0-0.05 and n is 1-3, and a process for the preparation of these catalysts.
Inventors
- 👤 Heinz Engelbach
- 👤 Werner Steigleiter
- 👤 Helmut Glietenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:22
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/16; B01J27/18; C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/18; C07C2527/00; C07C2527/14; C07C2527/16; C07C2527/167; C07C2527/173
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
69 words
A catalyst for olefin oligomerization, whose active material has the empirical formula APO.sub.4.[P.sub.2 O.sub.5.(H.sub.2 O).sub.n ].sub.a.(XY).sub.bI where A is boron, antimony, bismuth or 3 equivalents of titanium or mixtures thereof, X is NH 4 .sup.⊕ or an alkali metal cation and/or one equivalent of an alkaline earth metal cation, or mixtures thereof Y is one equivalent of an anion, a is 0.02-0.2, b is 0-0.05 and n is 1-3.
Claim 2
Dependent Claim
69 words
A catalyst for olefin oligomerization, whose active material has the empirical formula APO.sub.4.[P.sub.2 O.sub.5.(H.sub.2 O).sub.n ].sub.a.(XY).sub.bI where A is boron, antimony, bismuth or 3 equivalents of titanium or mixtures thereof, X is NH 4 .sup.⊕ or an alkali metal cation and/or one equivalent of an alkaline earth metal cation, or mixtures thereof Y is one equivalent of an anion, a is 0.02-0.2, b is 0-0.05 and n is 1-3.
Claim 3
Dependent Claim
11 words
A catalyst as claimed in claim 1, wherein A is boron.
Claim 4
Dependent Claim
105 words
A process for the preparation of the catalyst as claimed in claim 1, wherein aqueous or pure phosphoric acid or an anhydrophosphoric acid is thoroughly mixed with an oxide of element A, with or without addition of a salt XY, in the ratios corresponding to the indices a and b, the mixture is heated for a lengthy period, the excess water is distilled off until a viscous or solid material is obtained, the latter is brought to the desired catalyst shape and the catalyst particles are dried at an elevated temperature until the content of chemically bonded water corresponds to the desired value of n.
Claim 5
Dependent Claim
60 words
A process as claimed in claim 3, wherein the viscous or solid material first obtained is dried at an elevated temperature, the dry material is pulverized, the powder is worked into a paste with water, the paste is then molded and the catalyst particles are dried until the content of chemically bonded water corresponds to the desired value of n.
References Cited (Backward Citations)
US2620364A
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FR1374756A
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US3213036A
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US3244767A
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US3689589A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-11 | 1987-01-10 | 1987-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-11 | 1991-01-10 | 1991-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-11 | 1995-01-10 | 1995-07-12 | $7700.00 | Window Closed / Lapsed |