US4264434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Passivation of metals which contaminate cracking catalysts with antimony tris (hydrocarbyl sulfonate)
Assignee: Phillips Petroleum Co
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Filing: 1979-07-17
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Granted: 1981-04-28
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Expires: 1999-07-17
Abstract
Abstract A hydrocarbon oil cracking process in which a cracking catalyst employed has been treated with a passivating amount of an antimony tris (hydrocarbyl sulfonate), e.g., antimony tris (p-toluene sulfonate). The catalyst can be a conventional cracking catalyst, e.g., silica/alumina, zeolite, etc. The application can be conducted before and/or after the catalyst has been used to crack a hydrocarbon.
Inventors
- 👤 Brent J. Bertus
- 👤 Dwight L. McKay
- 👤 Harold W. Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:50
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; B; B01; B01J; B01J29/00; B01J29/90
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
63 words
A process for catalytic cracking of a hydrocarbon which comprises subjecting said hydrocarbon to cracking conditions in the presence of a cracking catalyst which has been treated with a passivating amount of an antimony tris(hydrocarbyl sulfonate) sufficient to passivate the activity of a metal contaminant when it is on the catalyst, the metal contaminant being at least one of vanadium, iron and nickel.
Claim 2
Dependent Claim
63 words
A process for catalytic cracking of a hydrocarbon which comprises subjecting said hydrocarbon to cracking conditions in the presence of a cracking catalyst which has been treated with a passivating amount of an antimony tris(hydrocarbyl sulfonate) sufficient to passivate the activity of a metal contaminant when it is on the catalyst, the metal contaminant being at least one of vanadium, iron and nickel.
Claim 3
Dependent Claim
28 words
A method according to claim 1 wherein the cracking catalyst is composed of at least one of silica/alumina and a zeolite and the hydrocarbon is a hydrocarbon oil.
Claim 4
Dependent Claim
14 words
A process according to claim 1 wherein the antimony compound is antimony tris(p-toluene sulfonate).
Claim 5
Dependent Claim
31 words
A process according to claim 1 wherein the antimony tris(hydrocarbyl sulfonate) is at least one selected from antimony tris(methane sulfonate), antimony tris (benzene sulfonate), antimony tris(p-toluene sulfonate), and antimony tris(dodecylbenzene sulfonate).
References Cited (Backward Citations)
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US4036740A
Cited
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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) | 1984-04-27 | 1984-10-27 | 1985-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-27 | 1988-10-27 | 1989-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-27 | 1992-10-27 | 1993-04-28 | $7700.00 | Window Closed / Lapsed |