US3041270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Product distribution in hydrocarbon catalytic cracking processes
Assignee: Atlantic Richfield Co
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Filing: 1960-03-01
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Granted: 1962-06-26
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Expires: 1980-03-01
Abstract
No abstract record available.
Inventors
- 👤 Leonard N Leum
- 👤 Jr James E Connor
- 👤 John J Rothrock
- 👤 Clifford S Shipley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:50
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/20; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A METHOD FOR IMPROVING THE PRODUCT DISTRIBUTION RESULTING FROM A HYDROCARBON CATALYTIC CRACKING PROCESS IN WHICH IS EMPLOYED A SILICA-ALUMINA CRACKING CATALYST WHICH CATALYST HAS BECOME CONTAMINATED WITH METALS DURING USE IN SAID PROCESS AND WHICH CONTAMINATED CATALYST IN THE PROCESS HAS BEEN SUBJECTED TO AT LEAST ONE REGENERATION CYCLE WHICH COMPRISES SEPARATING AT LEAST A PORTION OF THE TOTAL CATALYST FROM THE PROCESS INTIMATELY CONTACTING THE SEPARATED CATALYST WITH A CATION EXCHANGE RESIN IN THE HYDROGEN CYCLE IN AN AQUEOUS MEDIUM THEREBY AT LEAST PARTIALLY REMOVING COKE FORMING AND GAS FORMING METAL CONTAMINANTS FROM THE CATALYST WHILE THE STABILITY OF THE CATALYST IS SUBSTANTIALLY MAINTAINED, SEPARATING THE CONTACTED CATALYST FROM THE RESINS, AND RETURNING THE CONTACTED CATALYST TO THE HYDROCARBON CRACKING PROCESS.
Claim 2
Independent Claim
123 words
A METHOD FOR IMPROVING THE PRODUCT DISTRIBUTION RESULTING FROM A HYDROCARBON CATALYTIC CRACKING PROCESS IN WHICH IS EMPLOYED A SILICA-ALUMINA CRACKING CATALYST WHICH CATALYST HAS BECOME CONTAMINATED WITH METALS DURING USE IN SAID PROCESS AND WHICH CONTAMINATED CATALYST IN THE PROCESS HAS BEEN SUBJECTED TO AT LEAST ONE REGENERATION CYCLE WHICH COMPRISES SEPARATING AT LEAST A PORTION OF THE TOTAL CATALYST FROM THE PROCESS INTIMATELY CONTACTING THE SEPARATED CATALYST WITH A CATION EXCHANGE RESIN IN THE HYDROGEN CYCLE IN AN AQUEOUS MEDIUM THEREBY AT LEAST PARTIALLY REMOVING COKE FORMING AND GAS FORMING METAL CONTAMINANTS FROM THE CATALYST WHILE THE STABILITY OF THE CATALYST IS SUBSTANTIALLY MAINTAINED, SEPARATING THE CONTACTED CATALYST FROM THE RESINS, AND RETURNING THE CONTACTED CATALYST TO THE HYDROCARBON CRACKING PROCESS.
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) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |