US4187199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon conversion catalyst
Assignee: Chevron USA Inc
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Filing: 1978-09-05
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Granted: 1980-02-05
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Expires: 1998-09-05
Abstract
Abstract A composition useful in hydrocarbon conversion processes such as catalytic cracking is disclosed, comprising 0.05 to 10 weight percent lanthanum associated with a refractory support. The composition may also include 0.02 to 10 weight percent iron.
Inventors
- 👤 Sigmund M. Csicsery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:53
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/064; B01J29/072; C10G11/02; C10G11/04; C10G11/05
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
69 words
A catalyst composition comprising 1 to 80 weight percent of a zeolitic crystalline aluminosilicate, 0.05 to 10 weight percent lanthanum, calculated as the elemental metal and excluding lanthanum in the crystal structure of said aluminosilicate, and 0.05 to 10 weight percent iron, calculated as the elemental metal and excluding iron in the crystal structure of said zeolite, said lanthanum, iron and aluminosilicate being dispersed in a porous, refractory matrix.
Claim 2
Dependent Claim
69 words
A catalyst composition comprising 1 to 80 weight percent of a zeolitic crystalline aluminosilicate, 0.05 to 10 weight percent lanthanum, calculated as the elemental metal and excluding lanthanum in the crystal structure of said aluminosilicate, and 0.05 to 10 weight percent iron, calculated as the elemental metal and excluding iron in the crystal structure of said zeolite, said lanthanum, iron and aluminosilicate being dispersed in a porous, refractory matrix.
Claim 3
Dependent Claim
17 words
A composition according to claim 1 wherein said matrix comprises an amorphous mixture of silica and alumina.
Claim 4
Dependent Claim
20 words
A composition according to claim 1 wherein said zeolite comprises about 5 to about 20 weight percent of said composition.
Claim 5
Dependent Claim
14 words
A composition according to claim 1 wherein said zeolite has a fajuasite crystal structure.
Claim 6
Dependent Claim
16 words
A composition according to claim 1 wherein said composition includes 0.5 to 4 weight percent lanthanum.
References Cited (Backward Citations)
US2983670A
Cited
US3255101A
Cited
US3364136A
Cited
US3393147A
Cited
US3669903A
Cited
US3966643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-02-04 | 1983-08-06 | 1984-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-04 | 1987-08-06 | 1988-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-04 | 1991-08-06 | 1992-02-05 | $7700.00 | Window Closed / Lapsed |