US2580641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing a silica-zir-conium oxide catalyst for the conversion of hydrocarbons
Assignee: Houdry Process Corp
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Filing: 1941-01-24
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Granted: 1952-01-01
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Expires: 1961-01-24
Abstract
No abstract record available.
Inventors
- 👤 John R Bates
- 👤 Jr George R Bond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:57
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/06; B01J21/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN THE PROMOTED FORMATION OF VALUABLE REACTION PRODUCTS INVOLVING DECOMPOSITION OF HYDROCARBON STARTING MATERIAL, THE PROCESS COMPRISING CONTACTING SAID STARTING MATERIAL UNDER DECOMPOSING RECTION CONDITIONS WITH AN ACTIVE CATALYST COMPRISING A ZEOLITIC NUCLEUS INCAPABLE OF EXCHANGEABLY HOLDING MORE THAN 2% BY WEIGHT OF SODIUM OXIDE, SAID NUCLEUS HAVING BEEN PREPARED FROM A COAGULUM FORMED BY INTERRACTION OF A SOLUBLE SILICATE AND A ZIRCONIUM SALT UNDER PH CONDITIONS NOT IN EXCESS OF 5, AND CONSISTING OF SUBSTANTIALLY PURE CHEMICALLY BONDED SILICA AND ZIRCONIUM OXIDE, SAID SILICA COMPRISING AT LEAST 85% OF THE WEIGHT OF SAID NUCLEUS.
Claim 2
Dependent Claim
95 words
IN THE PROMOTED FORMATION OF VALUABLE REACTION PRODUCTS INVOLVING DECOMPOSITION OF HYDROCARBON STARTING MATERIAL, THE PROCESS COMPRISING CONTACTING SAID STARTING MATERIAL UNDER DECOMPOSING RECTION CONDITIONS WITH AN ACTIVE CATALYST COMPRISING A ZEOLITIC NUCLEUS INCAPABLE OF EXCHANGEABLY HOLDING MORE THAN 2% BY WEIGHT OF SODIUM OXIDE, SAID NUCLEUS HAVING BEEN PREPARED FROM A COAGULUM FORMED BY INTERRACTION OF A SOLUBLE SILICATE AND A ZIRCONIUM SALT UNDER PH CONDITIONS NOT IN EXCESS OF 5, AND CONSISTING OF SUBSTANTIALLY PURE CHEMICALLY BONDED SILICA AND ZIRCONIUM OXIDE, SAID SILICA COMPRISING AT LEAST 85% OF THE WEIGHT OF SAID NUCLEUS.
References Cited (Backward Citations)
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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) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |