Patent US2854403A successfully refreshed from Google Patents.
US2854403A
Expired / Lapsed
US
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Catalytic reforming
Assignee: ExxonMobil Oil Corp
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Filing: 1954-07-26
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Granted: 1958-09-30
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Expires: 1974-07-26
Abstract
No abstract record available.
Inventors
- 👤 Paul B Weisz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:05
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09; B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/42; B01J23/44; B01J31/00; B01J31/16; B01J37/00; B01J37/02; B01J37/03
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
76 words
A PROCESS FOR REFORMING A HYDROCABON MIXTURE WHICH COMPRISES CONTACTING THE SAME UNDER REFORMING CONDITION WITH A CATALYST CONSISTING ESSENTIALLY OF A MECHANICAL MIXTURE OF PARTICES OF LESS THAN ABOUT 100 MICRONS IN DIAMETER OF (1) A POROUS INERT CARRIER HAVING DEPOSITED THEREON BETWEEN ABOUT 0.05 AND ABOUT 5% BY WEIGHT OF A PLATINUM METAL AND (2) AN ACIDIC CRACKING COMPONENT, THE RELATIONSHIP BETWEEN THE COMPONENTS MAKING UP SAID MIXTURE BEING GOVERNED BY THE FOLLOWING EXPRESSIONS:
Claim 2
Dependent Claim
76 words
A PROCESS FOR REFORMING A HYDROCABON MIXTURE WHICH COMPRISES CONTACTING THE SAME UNDER REFORMING CONDITION WITH A CATALYST CONSISTING ESSENTIALLY OF A MECHANICAL MIXTURE OF PARTICES OF LESS THAN ABOUT 100 MICRONS IN DIAMETER OF (1) A POROUS INERT CARRIER HAVING DEPOSITED THEREON BETWEEN ABOUT 0.05 AND ABOUT 5% BY WEIGHT OF A PLATINUM METAL AND (2) AN ACIDIC CRACKING COMPONENT, THE RELATIONSHIP BETWEEN THE COMPONENTS MAKING UP SAID MIXTURE BEING GOVERNED BY THE FOLLOWING EXPRESSIONS:
Claim 3
Independent Claim
148 words
A METHOD FOR PREPARING A CATALYST CONSISTING ESSENTIALLY OF PELLETS MADE UP OF A MECHANICAL MIXTURE OF PARTICLES OF LESS THAN 100 MICRONS IN DIAMETER WHICH COMPRISES ADMIXING PARTICLES OF LESS THAN 100 MICRONS IN DIAMETER OF ALUMINA AND PARTICLES OF LESS THAN 100 MICRONS IN DIAMETER OF AN ACIDIC SILICA-ALUMINA CRACKING COMPONENT, PELLETING THE RESULTING COMPOSITE UNDER PRESSURE WITH A BINDER, REMOVING THE BINDER FROM THE PELLLETED PRODUCT BY COMBUSTION, CONTACTING THE RESIDUAL PELLETED COMPOSITE WITH A SOLUTION CONTAINING PLATINUM AS AN ANION FOR A SUFFICIENT PERIOD OF TIME TO PERMIT THE PORES OF SAID RESIDUAL COMPOSITE TO FILL WITH SAID SOLUTION, PERMITTING THE IMPREGNATED PARTICLES TO REMAIN IN A NONDRYING ATMOSPHERE FOR A SUFFICIENT PERIOD OF TIME TO ALLOW PLATINUM FROM THE SOLUTION TO REACH AN ADSORPTION EQUILIBRIUM BETWEEN ALUMINA AND SILICA-ALUMINA SURFACES, THEREAFTER DRYING THE COMPOSITE AND REDUCING THE DEPOSITED PLATINUM COMPOUND TO ELEMENTAL PLATINUM.
Claim 4
Independent Claim
148 words
A METHOD FOR PREPARING A CATALYST CONSISTING ESSENTIALLY OF PELLETS MADE UP OF A MECHANICAL MIXTURE OF PARTICLES OF LESS THAN 100 MICRONS IN DIAMETER WHICH COMPRISES ADMIXING PARTICLES OF LESS THAN 100 MICRONS IN DIAMETER OF ALUMINA AND PARTICLES OF LESS THAN 100 MICRONS IN DIAMETER OF AN ACIDIC SILICA-ALUMINA CRACKING COMPONENT, PELLETING THE RESULTING COMPOSITE UNDER PRESSURE WITH A BINDER, REMOVING THE BINDER FROM THE PELLLETED PRODUCT BY COMBUSTION, CONTACTING THE RESIDUAL PELLETED COMPOSITE WITH A SOLUTION CONTAINING PLATINUM AS AN ANION FOR A SUFFICIENT PERIOD OF TIME TO PERMIT THE PORES OF SAID RESIDUAL COMPOSITE TO FILL WITH SAID SOLUTION, PERMITTING THE IMPREGNATED PARTICLES TO REMAIN IN A NONDRYING ATMOSPHERE FOR A SUFFICIENT PERIOD OF TIME TO ALLOW PLATINUM FROM THE SOLUTION TO REACH AN ADSORPTION EQUILIBRIUM BETWEEN ALUMINA AND SILICA-ALUMINA SURFACES, THEREAFTER DRYING THE COMPOSITE AND REDUCING THE DEPOSITED PLATINUM COMPOUND TO ELEMENTAL PLATINUM.
References Cited (Backward Citations)
US2372165A
Cited
US2361978A
Cited
US2402898A
Cited
US2560329A
Cited
US2478916A
Cited
US2664386A
Cited
US2642381A
Cited
US2550531A
Cited
US2656305A
Cited
US2739927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |