Patent US3634330A successfully refreshed from Google Patents.
US3634330A
Expired / Lapsed
US
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Catalyst for oxidation of hydrochloric acid for use in the preparation of chlorinated hydrocarbons
Assignee: Produits Chimiques Pechiney Saint Gobain
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Filing: 1969-04-22
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Granted: 1972-01-11
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Expires: 1989-04-22
Abstract
Abstract AN OXIDATION CATALYST FOR HYDROGEN CHLORIDE FORMED OF A CATALYTIC COMPONENT OF CUPRIC CHLORIDE AND AT LEAST ONE CHLORIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF AN ALKALINE METAL, AN ALKALINE EARTH METAL AND A RARE EARTH METAL IN COMBINATION WITH A SUPPORT FOR THE CATALYTIC COMPONENT IN THE FORM OF SPHEROIDAL PARTICLES COMPOSED ESSENTIALLY OF SILICA AND CONTAINING AT LEAST ONE COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF A METAL OF THE GROUP II-A, III-B AND IV-B OF THE PERIODIC TABLE OF ELEMENTS, HAVING AN ATOMIC WEIGHT BELOW 178 AND ALUMINA, SAID SUPPORT HAVING A SPECIFIC SURFACE AREA WITHIN THE RANGE OF 40-400M.2/G.
Inventors
- 👤 Max Michel
- 👤 Gerard Benaroya
- 👤 Roland Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:20
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/15; B; B01; B01J; B01J27/00; B01J27/06; C01; C01B; C01B7/00; C01B7/01; C01B7/03; C01B7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |