US2939897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and catalyst for the isomerization of light paraffin
Assignee: Pure Oil Co
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Filing: 1958-08-15
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Granted: 1960-06-07
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Expires: 1978-08-15
Abstract
No abstract record available.
Inventors
- 👤 Oral L Beber
- 👤 Norman L Carr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:11
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; B01J27/128; B01J27/13; B01J23/00; B01J23/38; B01J23/40; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/883; B01J23/90; B01J23/94; B01J23/96; B01J37/00; B01J37/22; B01J37/26; C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2791; B01J37/02; B01J37/0201; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
63 words
THE METHOD OF PREPARING A HIGHLY ACTIVE HYDROCARBON ISOMERIZATION CATALYST WHICH COMPRISES CONTACTING A SILICA-ALUMINA CATALYST SUPPORT, CONTAINING AT LEAST 50 WT. PERCENT SILICA, WITH A FLUORINE-CONTAINING PERHALOGENATED HYDROCARBON AT A TEMPERATURE IN THE RANGE OF ABOUT 500*-1000*F., IMPREGNATING THE CATALYST SUPPORT WITH A REDUCIBLE COMPOUND OF A GROUP VIII METAL HYDROGENATION AGENT, AND REDUCING SAID METAL HYDROGENATION AGENT WITH HYDROGEN AT 750*-975*F.
Claim 2
Independent Claim
63 words
THE METHOD OF PREPARING A HIGHLY ACTIVE HYDROCARBON ISOMERIZATION CATALYST WHICH COMPRISES CONTACTING A SILICA-ALUMINA CATALYST SUPPORT, CONTAINING AT LEAST 50 WT. PERCENT SILICA, WITH A FLUORINE-CONTAINING PERHALOGENATED HYDROCARBON AT A TEMPERATURE IN THE RANGE OF ABOUT 500*-1000*F., IMPREGNATING THE CATALYST SUPPORT WITH A REDUCIBLE COMPOUND OF A GROUP VIII METAL HYDROGENATION AGENT, AND REDUCING SAID METAL HYDROGENATION AGENT WITH HYDROGEN AT 750*-975*F.
Claim 3
Independent Claim
45 words
A METHOD OF REGENERATING A HYDROCARBON ISOMERIZATION CATALYST CONSISTING ESSENTIALLY OF A SILICA-ALUMINA SUPPORT, CONTAINING AT LEAST 50 WT. PERCENT SILICA, AND 0.01-1.0% OF A GROUP VIII METAL HYDROGENATION AGENT, WHICH COMPRISES OXIDIZING SAID CATALYST WITH OXYGEN TO REMOVE IMPURITIES, CONTACTING THE OXIDIZED CATALYST WITH
Claim 4
Independent Claim
45 words
A METHOD OF REGENERATING A HYDROCARBON ISOMERIZATION CATALYST CONSISTING ESSENTIALLY OF A SILICA-ALUMINA SUPPORT, CONTAINING AT LEAST 50 WT. PERCENT SILICA, AND 0.01-1.0% OF A GROUP VIII METAL HYDROGENATION AGENT, WHICH COMPRISES OXIDIZING SAID CATALYST WITH OXYGEN TO REMOVE IMPURITIES, CONTACTING THE OXIDIZED CATALYST WITH
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) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |