Patent US2955090A successfully refreshed from Google Patents.
US2955090A
Expired / Lapsed
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Process for preparing a supported nickel hydrogenation catalyst
Assignee: WR Grace and Co
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Filing: 1959-02-04
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Granted: 1960-10-04
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Expires: 1979-02-04
Abstract
No abstract record available.
Inventors
- 👤 Sydney H Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:08
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; C; C07; C07C; C07C13/00; B01J37/00; B01J37/02; B01J37/0201
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A PROCESS FOR PREPARING A SUPPORTED NICKEL CATALYST SUITABLE FOR USE IN VAPOR PHASE HYDROGENATION REACTIONS WHICH COMPRISES SUBJECTING A SILICA-ALUMINA HYDROCARBON CRACKING BASE CONTAINING 10-40% ALUMINA AND ADMIXED IN AN AQUEOUS SOLUTION CONSISTING OF AMMONIA AND A NICKEL SALT TO HEAR TREATMENT AT ITS BOILING POINT FOR A TIME SUFFICIENT TO IMPREGNATE AND FIX THE NICKEL ON SAID BASE IN WATER-INSOLUBLE FORM, WASHING AND DRYING THE THUS-IMPREGNATED BASE, AND REDUCING THE ADSORBED NICKEL COMPOUND.
Claim 2
Dependent Claim
75 words
A PROCESS FOR PREPARING A SUPPORTED NICKEL CATALYST SUITABLE FOR USE IN VAPOR PHASE HYDROGENATION REACTIONS WHICH COMPRISES SUBJECTING A SILICA-ALUMINA HYDROCARBON CRACKING BASE CONTAINING 10-40% ALUMINA AND ADMIXED IN AN AQUEOUS SOLUTION CONSISTING OF AMMONIA AND A NICKEL SALT TO HEAR TREATMENT AT ITS BOILING POINT FOR A TIME SUFFICIENT TO IMPREGNATE AND FIX THE NICKEL ON SAID BASE IN WATER-INSOLUBLE FORM, WASHING AND DRYING THE THUS-IMPREGNATED BASE, AND REDUCING THE ADSORBED NICKEL COMPOUND.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |