US3150206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isomerization process and catalyst
Assignee: Pure Oil Co
•
Filing: 1960-10-28
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Granted: 1964-09-22
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Expires: 1980-10-28
Abstract
No abstract record available.
Inventors
- 👤 Elmer L Miller
- 👤 Theodore R Embach
- 👤 Hillis O Folkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:50
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2791; B01J37/00; B01J37/02; B01J37/0201
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
106 words
A METHOD OF PREPARING A HIGHLY ACTIVE ISOMERIZATION CATALYST WHICH CONSISTS IN IMPREGNATING ETA-ALUMINA WITH A SOLUTION OF A REDUCIBLE NICKEL COMPOUND TO A NICKEL CONTENT OF 0.5-5.0% WT., REDUCING THE IMPREGNATED CATALYST WITH HYDROGEN AT AN ELEVATED TEMPERATURE, HEATING THE REDUCED CATALYST WITH SUFFICIENT ANHYDROUS ALUMINUM CHLORIDE, AT A TEMPERATURE SUFFICIENT TO CAUSE REACTION WITH SURFACE HYDROXYUL GROUPS IN THE ALUMNA, TO RETAIN 1020% WT. ALUMINUM CHLORIDE IN CHEMICALLY COMBINED AND CHEMISORBED FORM IN THE CATALYST, AND HEATING THE RESULTING CATALYST IN A STREAM OF INERT GAS TO REMOVE ALUMINUM CHLORIDE IN EXCESS OF THAT REACTED AND CHEMISORBED AND TO REMOVE ADSORBED BY-PRODUCT HYDROGEN CHLORIDE.
Claim 2
Independent Claim
106 words
A METHOD OF PREPARING A HIGHLY ACTIVE ISOMERIZATION CATALYST WHICH CONSISTS IN IMPREGNATING ETA-ALUMINA WITH A SOLUTION OF A REDUCIBLE NICKEL COMPOUND TO A NICKEL CONTENT OF 0.5-5.0% WT., REDUCING THE IMPREGNATED CATALYST WITH HYDROGEN AT AN ELEVATED TEMPERATURE, HEATING THE REDUCED CATALYST WITH SUFFICIENT ANHYDROUS ALUMINUM CHLORIDE, AT A TEMPERATURE SUFFICIENT TO CAUSE REACTION WITH SURFACE HYDROXYUL GROUPS IN THE ALUMNA, TO RETAIN 1020% WT. ALUMINUM CHLORIDE IN CHEMICALLY COMBINED AND CHEMISORBED FORM IN THE CATALYST, AND HEATING THE RESULTING CATALYST IN A STREAM OF INERT GAS TO REMOVE ALUMINUM CHLORIDE IN EXCESS OF THAT REACTED AND CHEMISORBED AND TO REMOVE ADSORBED BY-PRODUCT HYDROGEN CHLORIDE.
Claim 3
Dependent Claim
25 words
A METHOD OF ISOMER N-BUTANE WHICH CONSISTS IN CONTACTING N-BUTANE AT AN ISOMERIZATION TEMPERATURE OF 200-600*F. WITH A CATALYST PREPARED IN ACCORDANCE WITH CLAIM 1.
Claim 4
Dependent Claim
40 words
AN ISOMERIZATION CATALYST CONSISTING ESSENTIALLY OF ETA-ALUMINA IMPREGNATED WITH ABOUT 0.5 TO 5% BY WEIGHT OF NICKEL AND CONTAINING CHEMISORBED AND CHEMICALLY COMBINED ALUMINUM CHLORIDE IN AN AMOUNT EQUAL TO ABOUT 10 TO 20% BY WEIGHT OF THE TOTAL CATALYST.
Claim 5
Dependent Claim
40 words
AN ISOMERIZATION CATALYST CONSISTING ESSENTIALLY OF ETA-ALUMINA IMPREGNATED WITH ABOUT 0.5 TO 5% BY WEIGHT OF NICKEL AND CONTAINING CHEMISORBED AND CHEMICALLY COMBINED ALUMINUM CHLORIDE IN AN AMOUNT EQUAL TO ABOUT 10 TO 20% BY WEIGHT OF THE TOTAL CATALYST.
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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |