US3558477A
Expired / Lapsed
US
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Reforming with a platinum-rhenium catalyst
Assignee: Chevron USA Inc
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Filing: 1968-05-14
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Granted: 1971-01-26
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Expires: 1988-05-14
Abstract
Abstract A REFORMING PROCESS UTILIZING AS A CATLYST A COMPOSITION OF MATTER COMPRISING A POROUS SOLID CARRIER IN ASSOCIATION WITH 0.1 TO 3.0 WEIGHT PERCENT PLATINUM, AND 0.1 TO 3.0 WEIGHT PERCENT RHENIUM WITH A RHENIUM TO PLATINUM ATOMIC RATIO OF LESS THAN 1.0. THE PLATINUM AND RHENIUM ARE DISPOSED ON THE SURFACE OF THE CARRIER BY IMPREGNATION WITH WATER SOLUBLE COMPOUNDS OF THE METALS, FOLLOWED BY SIMULTANEOUS REDUCTION OF THE COMPOUNDS.
Inventors
- 👤 Harris E Kluksdahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:17
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09; B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/64; B01J23/656; B01J23/6567
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |