US2548860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon conversion process with the use of a grainy silicaalumina type catalyst
Assignee: Houdry Process Corp
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Filing: 1947-12-26
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Granted: 1951-04-17
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Expires: 1967-12-26
Abstract
No abstract record available.
Inventors
- 👤 Jr George R Bond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:45
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/12; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
THE PROCESS OF CONVERTING HIGHER BOILING HYDROCARBONS TO GASOLINE BY CATALYTIC CRACKING WHICH COMPRISES CONTACTING SAID HYDROCARBONS WITH A SOLID CATALYTIC COMPOSITION PREPARED BY A METHOD COMPRISING PRECIPITATION OF SILICA AND ALUMINA FROM AN AQUEOUS MEDIUM CONTAINING SOLUBLE SILICON AND ALUMINUM COMPOUNDS UNDER CONDITIONS SELECTED TO FORM A GRAINY PRECIPITATE, SAID SOLUBLE COMPOUNDS BEING PRESENT IN SAID AQUEOUS MEDIUM IN SAID HIGH CONCENTRATIONS AS TO FURNISH SILICA AND ALUMINA IN A PRODUCT CONCENTRATION OF AT LEAST 150 GRAMS PER LITER OF TOTAL REACTION MASS AND SAID PRECIPITATION BEING EFFECTED AT A PH OF 2 TO 10 IN THE PRESENCE OF ADDED ACIDIC MATERIALS.
Claim 2
Dependent Claim
103 words
THE PROCESS OF CONVERTING HIGHER BOILING HYDROCARBONS TO GASOLINE BY CATALYTIC CRACKING WHICH COMPRISES CONTACTING SAID HYDROCARBONS WITH A SOLID CATALYTIC COMPOSITION PREPARED BY A METHOD COMPRISING PRECIPITATION OF SILICA AND ALUMINA FROM AN AQUEOUS MEDIUM CONTAINING SOLUBLE SILICON AND ALUMINUM COMPOUNDS UNDER CONDITIONS SELECTED TO FORM A GRAINY PRECIPITATE, SAID SOLUBLE COMPOUNDS BEING PRESENT IN SAID AQUEOUS MEDIUM IN SAID HIGH CONCENTRATIONS AS TO FURNISH SILICA AND ALUMINA IN A PRODUCT CONCENTRATION OF AT LEAST 150 GRAMS PER LITER OF TOTAL REACTION MASS AND SAID PRECIPITATION BEING EFFECTED AT A PH OF 2 TO 10 IN THE PRESENCE OF ADDED ACIDIC MATERIALS.
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) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |