Patent US3117076A successfully refreshed from Google Patents.
US3117076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactivation of platinum cataysts
Assignee: Standard Oil Co
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Filing: 1959-08-31
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Granted: 1964-01-07
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Expires: 1979-08-31
Abstract
No abstract record available.
Inventors
- 👤 Harry M Brennan
- 👤 Herman S Seelig
- 👤 Haar Roy W Vander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:02
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/90; B01J23/96
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A METHOD OF REACTIVATING AN ALUMINA SUPPORTED PLATINUM-CONTAINING CATALYST WHICH HAS BECOME DEACTIVATED DURING HYDROFORMING AND CONTAINS CARBONACEOUS DEPOSITS WHICH COMPRISES THE STEPS OF CONTACTING THE DEACTIVATED CATALYST CONTAINING CARBONACEOUS DEPOSITS WITH AT LEAST 0.1 WEIGHT PERCENT OF CHLORINE BASED ON THE SUPPORTED CATALYST AT AN ELEVATED TEMPERATURE BELOW 1250*F.; STRIPPING VOLATILIZED METAL CHLORIDES AND EXCESS CHLORINE FROM THE CATALYST; AND TREATING THE STRIPPED CATALYST WITH AN OXYGEN CONTAINING GAS AT ELEVATED TEMPERATURES TO BURN THE CARBONACEOUS DEPOSITS THEREFROM.
Claim 2
Independent Claim
79 words
A METHOD OF REACTIVATING AN ALUMINA SUPPORTED PLATINUM-CONTAINING CATALYST WHICH HAS BECOME DEACTIVATED DURING HYDROFORMING AND CONTAINS CARBONACEOUS DEPOSITS WHICH COMPRISES THE STEPS OF CONTACTING THE DEACTIVATED CATALYST CONTAINING CARBONACEOUS DEPOSITS WITH AT LEAST 0.1 WEIGHT PERCENT OF CHLORINE BASED ON THE SUPPORTED CATALYST AT AN ELEVATED TEMPERATURE BELOW 1250*F.; STRIPPING VOLATILIZED METAL CHLORIDES AND EXCESS CHLORINE FROM THE CATALYST; AND TREATING THE STRIPPED CATALYST WITH AN OXYGEN CONTAINING GAS AT ELEVATED TEMPERATURES TO BURN THE CARBONACEOUS DEPOSITS THEREFROM.
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) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |