US3351566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized high-activity catalyst
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1963-10-21
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Granted: 1967-11-07
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Expires: 1983-10-21
Abstract
No abstract record available.
Inventors
- 👤 William F Taylor
- 👤 John H Sinfelt
- 👤 David J C Yates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:40
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/74; B01J23/755; B01J35/00; B01J35/60; B01J35/61; B01J35/613; B01J21/00; B01J21/06; B01J21/08; B01J37/00; B01J37/02; B01J37/03; B01J37/031
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A SOLID NICKEL-SILICA CATALYST HAVING A STABILIZED HIGH NICKEL SURFACE AREA OF 45 TO 60 SQ. METERS PER GRAM AND TOTAL SURFACE AREA OF 225 TO ABOUT 300 SQ. METERS PER GRAM OF THE CATALYST IN ACTIVATED CONDITION IS PREPARED BY PRECIPITATING THE NICKEL AND SILICATE IONS FROM SOLUTION AS NICKEL HYDROSILICATE ONTO POROUS SILICA PARTICLES IN SUCH PROPORTIONS THAT THE ACTIVATED CATALYST CONTAINS 25 TO 50 WT. PERCENT NICKEL AND OF ITS TOTAL SILICA CONTENT 30 TO 90 WT. PERCENT THEREOF IS DERIVED FROM THE PRECIPITATED SILICATE IONS, THE CATALYST BEING ACTIVATED BY CALCINING IN AIR THE PARTICLES OF POROUS SILICA WITH ITS DEPOSIT OF NICKEL HYDROSILICATE AT 600* TO 900* F. THEN REDUCING WITH HYDROGEN THE RESULTING CALCINED SOLIDS AT 600* TO 900*F.
Claim 2
Dependent Claim
125 words
A SOLID NICKEL-SILICA CATALYST HAVING A STABILIZED HIGH NICKEL SURFACE AREA OF 45 TO 60 SQ. METERS PER GRAM AND TOTAL SURFACE AREA OF 225 TO ABOUT 300 SQ. METERS PER GRAM OF THE CATALYST IN ACTIVATED CONDITION IS PREPARED BY PRECIPITATING THE NICKEL AND SILICATE IONS FROM SOLUTION AS NICKEL HYDROSILICATE ONTO POROUS SILICA PARTICLES IN SUCH PROPORTIONS THAT THE ACTIVATED CATALYST CONTAINS 25 TO 50 WT. PERCENT NICKEL AND OF ITS TOTAL SILICA CONTENT 30 TO 90 WT. PERCENT THEREOF IS DERIVED FROM THE PRECIPITATED SILICATE IONS, THE CATALYST BEING ACTIVATED BY CALCINING IN AIR THE PARTICLES OF POROUS SILICA WITH ITS DEPOSIT OF NICKEL HYDROSILICATE AT 600* TO 900* F. THEN REDUCING WITH HYDROGEN THE RESULTING CALCINED SOLIDS AT 600* TO 900*F.
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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |