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Patent US4551441A successfully refreshed from Google Patents.
US4551441A
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Nickel boride-polymer in-oil catalyst
Assignee: Unilever Patent Holdings BV
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Filing: 1984-07-11
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Granted: 1985-11-05
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Expires: 2004-07-11
Abstract
Abstract A finely divided nickel boride hydrogenation catalyst which is stabilized with an organic linear polymer dispersed in a fatty substance like a triglyceride oil or a fatty amide is provided. The catalyst is stable upon storage and has a good selectivity. This catalyst yields excellent results in hydrogenation processes.
Inventors
- 👤 Cornelis Van Dijk
- 👤 Rudolph O. De Jongh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:33
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/0234; B01J31/0271; B01J23/00; B01J23/70; B01J23/74; B01J23/755; B01J31/0201; B01J31/0209; B01J31/0235; B01J31/0245; B01J31/0247; B01J31/06; B01J31/26; B01J31/28; C; C11; C11C; C11C3/00; C11C3/12; C11C3/123; B01J21/00; B01J21/02; B01J2231/00; B01J2231/60; B01J2231/64; B01J2231/641; B01J2231/645
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
29 words
A finely divided nickel boride catalyst stabilized with a linear organic polymer, characterized in that nickel boride with a stabilizing linear organic polymer is suspended in a fatty compound.
Claim 2
Dependent Claim
29 words
A finely divided nickel boride catalyst stabilized with a linear organic polymer, characterized in that nickel boride with a stabilizing linear organic polymer is suspended in a fatty compound.
Claim 3
Dependent Claim
22 words
A catalyst according to claim 1, characterized in that the nickel particles have an average size ranging between 0.5 and 10 nanometers.
Claim 4
Dependent Claim
16 words
A catalyst according to claim 1, characterized in that the fatty compound is an unsaturated triglyceride.
Claim 5
Dependent Claim
17 words
A catalyst according to claim 1, characterized in that the linear organic polymer is based on vinylpyrrolidone.
Claim 6
Dependent Claim
23 words
A catalyst according to claim 1, chracterized in that the linear organic polymer has an average molecular weight ranging between 10,000 and 150,000.
Claim 7
Dependent Claim
31 words
A catalyst according to claim 1, characterized in that the fatty compound contains from 0.2 to 8% by weight of organic polymer and from 0.1-5% of nickel boride (calculated as nickel).
Claim 8
Dependent Claim
98 words
A process for the preparation of a finely divided nickel boride catalyst according to claim 1, in which an alcoholic solution of alkali borohydride is mixed with an alcoholic solution of a nickel compound, and of which at least one of the solutions also contains an organic linear polymer and, in a hydrogen atmosphere or an inert gas atmosphere at a temperature between 0° and 80° C., by which finely divided nickel boride is formed, characterized in that after termination of the reduction a fatty compound is added to this composition and the alcohol is removed by evaporation.
Claim 9
Dependent Claim
16 words
A process according to claim 7, characterized in that the linear organic polymer contains vinylpyrrolidone groups.
Claim 10
Dependent Claim
18 words
A catalyst according to claim 6 wherein the fatty compound contains from 0.5-5% by weight of organic polymer.
Claim 11
Dependent Claim
20 words
A process according to claim 7 wherein the alcoholic solutions are mixed at a temperature between 20 and 60° C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1988-11-04 | 1989-05-06 | 1989-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-04 | 1993-05-06 | 1993-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-04 | 1997-05-06 | 1997-11-05 | $7700.00 | Window Closed / Lapsed |