US2930766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of a supported catalyst
Assignee: Distillers Co Yeast Ltd
•
Filing: 1957-02-18
•
Granted: 1960-03-29
•
Expires: 1977-02-18
Abstract
No abstract record available.
Inventors
- 👤 Lacey Richard Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:03
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/44; B01J37/00; B01J37/02; B01J37/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A PROCESS OF PRODUCING A SUUPPORTED CATALYST WHICH COMPRISES STEEPING A SUPPORTING MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALUMINA, MAGNESIA, TITANIA, CHROMIA, CHARCOAL, SILICA GEL AND PUMICE IN AN AQUEOUS SOLUTION OF AN ALKALI SELECTED FROM THE GROUP CONSISTING OF HYDROXIDES, CARBONATES AND BICARBONATES OF ALKALI METALS, RECOVERING AND THEN DRYING THE STEEPED SUPPORTING MATERIAL, AND HEATING THE DRIED SUPPORTING MATERIAL AT A TEMPERATURE BELOW 250*C. WITH A SOLUTION OF A COMPOUND OF A PLATINUM GROUP METAL IN AN ORGANIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF ACETONE, ETHYL METHYL KETONE AND DIETHYL KETONE, THEREBY DEPOSIYING AN OXIDE OF THE PLATINUM GROUP METAL ON THE SUPPORTING MATERIAL, HEATING THE RESULTING PRODUCT WITH AN AQUEOUS SOLUTION OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF HYDROXIDES, CARBONATES AND BICARBONATES OF ALKALI METALS, AND THEREAFTER REDUCING THE OXIDE OF THE PLATINUM GROUP METAL TO THE CORRESPONDING METAL.
Claim 2
Dependent Claim
146 words
A PROCESS OF PRODUCING A SUUPPORTED CATALYST WHICH COMPRISES STEEPING A SUPPORTING MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALUMINA, MAGNESIA, TITANIA, CHROMIA, CHARCOAL, SILICA GEL AND PUMICE IN AN AQUEOUS SOLUTION OF AN ALKALI SELECTED FROM THE GROUP CONSISTING OF HYDROXIDES, CARBONATES AND BICARBONATES OF ALKALI METALS, RECOVERING AND THEN DRYING THE STEEPED SUPPORTING MATERIAL, AND HEATING THE DRIED SUPPORTING MATERIAL AT A TEMPERATURE BELOW 250*C. WITH A SOLUTION OF A COMPOUND OF A PLATINUM GROUP METAL IN AN ORGANIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF ACETONE, ETHYL METHYL KETONE AND DIETHYL KETONE, THEREBY DEPOSIYING AN OXIDE OF THE PLATINUM GROUP METAL ON THE SUPPORTING MATERIAL, HEATING THE RESULTING PRODUCT WITH AN AQUEOUS SOLUTION OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF HYDROXIDES, CARBONATES AND BICARBONATES OF ALKALI METALS, AND THEREAFTER REDUCING THE OXIDE OF THE PLATINUM GROUP METAL TO THE CORRESPONDING METAL.
References Cited (Backward Citations)
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US2123732A
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US2475155A
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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) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |