Patent US3137656A successfully refreshed from Google Patents.
US3137656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing hydrocracking catalysts
Assignee: California Research LLC
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Filing: 1960-04-08
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Granted: 1964-06-16
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Expires: 1980-04-08
Abstract
No abstract record available.
Inventors
- 👤 Harold F Mason
- 👤 Jr John W Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:06
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/20; B01J21/00; B01J21/06; B01J21/08; B01J23/00; B01J23/70; B01J37/02; B01J37/0201
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
136 words
THE METHOD OF PREPARING A HYDROCARBON CONVERSION CATALYST WHICH COMPRISES IMPREGNATING AN ACTIVE SILICEOUS CRACKING SUPPORT WITH AT LEAST ONE METAL SALT SELECTED FROM THE GROUP CONSISTING OF THE SALTS OF NICKEL AND COBALT IN AN AMOUNT SUCH THAT THERE IS DISPOSED ON SAID SUPPORT FROM ABOUT 1 TO 35 PERCENT BY WEIGHT OF SAID METAL, CALCINING THE RESULTING IMPREGNATED SUPPORT TO SUBSTANTIALLY CONVERT SAID METAL SALT TO THE CORRESPONDING METAL OXIDE, HEAT TREATING THE CATALYST RESULTING FROM SUCH IMPREGNATION AND CALCINATION AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 1200* TO 1600*F. WHILE SAID METAL IS SUBSTANTIALLY IN THE OXIDIZED FORM, AND SUBSEQUENTLY CONTACTED SUCH HEAT-TREATED CATALYST WITH AT LEAST ONE ANHYDROUS HALIDE OF A CONCENTRATION SUCH THAT AT LEAST 0.5 WEIGHT PERCENT OF THE FINAL CATALYST IS COMPOSED OF AT LEAST ONE HALIDE.
Claim 2
Independent Claim
136 words
THE METHOD OF PREPARING A HYDROCARBON CONVERSION CATALYST WHICH COMPRISES IMPREGNATING AN ACTIVE SILICEOUS CRACKING SUPPORT WITH AT LEAST ONE METAL SALT SELECTED FROM THE GROUP CONSISTING OF THE SALTS OF NICKEL AND COBALT IN AN AMOUNT SUCH THAT THERE IS DISPOSED ON SAID SUPPORT FROM ABOUT 1 TO 35 PERCENT BY WEIGHT OF SAID METAL, CALCINING THE RESULTING IMPREGNATED SUPPORT TO SUBSTANTIALLY CONVERT SAID METAL SALT TO THE CORRESPONDING METAL OXIDE, HEAT TREATING THE CATALYST RESULTING FROM SUCH IMPREGNATION AND CALCINATION AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 1200* TO 1600*F. WHILE SAID METAL IS SUBSTANTIALLY IN THE OXIDIZED FORM, AND SUBSEQUENTLY CONTACTED SUCH HEAT-TREATED CATALYST WITH AT LEAST ONE ANHYDROUS HALIDE OF A CONCENTRATION SUCH THAT AT LEAST 0.5 WEIGHT PERCENT OF THE FINAL CATALYST IS COMPOSED OF AT LEAST ONE HALIDE.
Claim 3
Dependent Claim
32 words
THE METHOD OF CLAIM 1 WHEREIN SAID METAL OF IMPREGNATION IS AT LEAST PARTIALLY CONVERTED TO THE CORRESPONDING SULFIDE BY CONTACT WITH AT LEAST ONE ANHYDROUS SULFUR-CONTAINING COMPOUND AFTER SAID HALIDING STEP.
References Cited (Backward Citations)
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US2746907A
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US2744148A
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US2913421A
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US3078238A
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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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |