US2650906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of impregnated type tungsten and molybdenum catalysts
Assignee: Shell Development Co
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Filing: 1950-03-28
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Granted: 1953-09-01
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Expires: 1970-03-28
Abstract
No abstract record available.
Inventors
- 👤 Engel Willem Frederik
- 👤 Hoog Han
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:39
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/888; B01J23/88; B01J23/882; B01J37/00; B01J37/02; B01J37/0201; B01J37/0203
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
IN THE PREPARATION OF A CATALYST CONTAINING A COMBINATION ELEMENTS SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM AND COBALT, TUNGSTEN AND COBALT, TUNGSTEN AND NICKEL, AND MIXTURES THEREOF IMPREGNATED IN A FORAMINOUS CARRIER MATERIAL, THE IMPROVEMENT WHICH COMPRISES IMPREGNATING THE ELEMENTS OF SAID COMBINATION SIMULTANEOUSLY IN THE SAID FORAMINOUS CARRIER MATERIAL BY MEANS OF AN AQUEOUS ALKANOLAMINE SOLUTION OF WATER-SOLUTION COMPOUNDS OF SAID ELEMENTS WHICH ARE CONVERTED TO THE CORRSPONDING OXIDES UPON CALCINATION, AND CALCINING THE THUS IMPREGNATED FORAMINOUS CARRIER MATERIAL TO CONVERT THE SAID COMPOUND TO THE CORRESPONDING METAL OXIDES.
Claim 2
Dependent Claim
91 words
IN THE PREPARATION OF A CATALYST CONTAINING A COMBINATION ELEMENTS SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM AND COBALT, TUNGSTEN AND COBALT, TUNGSTEN AND NICKEL, AND MIXTURES THEREOF IMPREGNATED IN A FORAMINOUS CARRIER MATERIAL, THE IMPROVEMENT WHICH COMPRISES IMPREGNATING THE ELEMENTS OF SAID COMBINATION SIMULTANEOUSLY IN THE SAID FORAMINOUS CARRIER MATERIAL BY MEANS OF AN AQUEOUS ALKANOLAMINE SOLUTION OF WATER-SOLUTION COMPOUNDS OF SAID ELEMENTS WHICH ARE CONVERTED TO THE CORRSPONDING OXIDES UPON CALCINATION, AND CALCINING THE THUS IMPREGNATED FORAMINOUS CARRIER MATERIAL TO CONVERT THE SAID COMPOUND TO THE CORRESPONDING METAL OXIDES.
References Cited (Backward Citations)
US2034077A
Cited
US2486361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |