US4324697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorided composite catalyst
Assignee: Texaco Inc
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Filing: 1980-10-20
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Granted: 1982-04-13
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Expires: 2000-10-20
Abstract
Abstract An improved cracking catalyst prepared by treating a metallic reforming catalyst with an aqueous solution containing a fluorine compound, drying and calcining the fluorided catalyst, and then physically mixing the fluorided catalyst with a zeolite-containing cracking catalyst. The composite yields higher octane products than conventional cracking catalysts.
Inventors
- 👤 Paul H. Lewis
- 👤 James C. Vartuli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:29
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; B01J27/08; B01J27/12; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/10; B01J29/12; B01J29/126; B01J29/16; B01J29/166
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
71 words
An improved composite cracking catalyst consisting essentially of from about 90 to about 95 percent by weight of a composite of a Y zeolite in a silica-alumina matrix, and from about 5 to about 10 percent by weight of a fluorided metallic reforming catalyst comprising platinum on alumina and containing from about 0.01 to about 2 percent by weight platinum and from about 0.5 to about 5 percent by weight fluorine.
Claim 2
Dependent Claim
71 words
An improved composite cracking catalyst consisting essentially of from about 90 to about 95 percent by weight of a composite of a Y zeolite in a silica-alumina matrix, and from about 5 to about 10 percent by weight of a fluorided metallic reforming catalyst comprising platinum on alumina and containing from about 0.01 to about 2 percent by weight platinum and from about 0.5 to about 5 percent by weight fluorine.
Claim 3
Dependent Claim
33 words
An improved cracking catalyst in accordance with claim 1 wherein said metallic reforming catalyst also contains a catalytically effective amount of a metal selected from the group consisting of tin, germanium, and rhenium.
Claim 4
Dependent Claim
22 words
An improved cracking catalyst in accordance with claim 1 wherein said fluorided reforming catalyst contains about 1 percent by weight of fluoride.
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) | 1985-04-12 | 1985-10-12 | 1986-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-12 | 1989-10-12 | 1990-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-12 | 1993-10-12 | 1994-04-13 | $7700.00 | Window Closed / Lapsed |