Patent US2850463A successfully refreshed from Google Patents.
US2850463A
Expired / Lapsed
US
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Catalyst and method of preparation therefor
Assignee: Publicker Ind Inc
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Filing: 1953-06-26
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Granted: 1958-09-02
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Expires: 1973-06-26
Abstract
No abstract record available.
Inventors
- 👤 Romanovsky Cyril
- 👤 Jordan Thomas Earl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:54
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/185; B01J27/1853; C; C07; C07C; C07C1/00; C07C1/20; C07C2521/00; C07C2521/14; C07C2527/00; C07C2527/14; C07C2527/16; C07C2527/167
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
74 words
A CATALYST FOR THE DIRECT CATALYTIC CONVERSION OF ETHYL ALCOHOL TO BUTADIENE COMPRISING A MAJOR WEIGHT PERCENTAGE OF MAGNESIA AND SILICA AND A MINOR WEIGHT PERCENTAGE, SUFFICIENT TO CONFER IMPROVED CATALYTIC CONVERSION CHARACTERISTICS FOR CATALYZING THE DIRECT CONVERSION OF ETHYL ALCOHOL TO BUTADIENE, OF NORMAL METAL PHOSPHATE MATERIAL COMPOSED OF PHOSPHATE RADICALS CHEMICALLY COMBINED WITH CALCIUM AND NICKEL IN THE RELATIVE PROPORTION OF FROM 7.5 TO 9.2 ATOMS OF CALCIUM PER ATOM OF NICKEL.
Claim 2
Dependent Claim
74 words
A CATALYST FOR THE DIRECT CATALYTIC CONVERSION OF ETHYL ALCOHOL TO BUTADIENE COMPRISING A MAJOR WEIGHT PERCENTAGE OF MAGNESIA AND SILICA AND A MINOR WEIGHT PERCENTAGE, SUFFICIENT TO CONFER IMPROVED CATALYTIC CONVERSION CHARACTERISTICS FOR CATALYZING THE DIRECT CONVERSION OF ETHYL ALCOHOL TO BUTADIENE, OF NORMAL METAL PHOSPHATE MATERIAL COMPOSED OF PHOSPHATE RADICALS CHEMICALLY COMBINED WITH CALCIUM AND NICKEL IN THE RELATIVE PROPORTION OF FROM 7.5 TO 9.2 ATOMS OF CALCIUM PER ATOM OF NICKEL.
Claim 3
Independent Claim
121 words
A METHOD FOR MANUFACTURING A CATALYST USEFUL FOR THE DIRECT CATALYTIC CONVERSION OF ETHYL ALCOHOL TO BUTADIENE COMPRISING FORMING A SOLUTION OF CALCIUM IONS, NICKEL IONS AND PHOSPHATE IONS, SAID SOLUTION CONTAINING BETWEEN 7.5 AND 9.2 ATOMS OF CALCIUM PER ATOM OF NICKEL, RENDERING SAID SOLUTION NON-ACIDIC AND PRECIPITATING A NORMAL METAL PHOSPHATE MATERIAL COMPOSED OF PHOSPHATE RADICALS CHEMICALLY COMBINED WITH CALCIUM AND NICKEL IN THE RELATIVE PROPORTION OF FROM 7.5 TO 9.2 ATOMS OF CALCIUM PER ATOM OF NICKEL, COMMINGLING A MINOR WEIGHT PERCENTAGE OF SAID NORMAL METAL PHOSPHATE MATERIAL WITH A MAJOR WEIGHT PERCENTAGE OF MAGNESIA AND SILICA TO FORM A SUBSTANTIALLY HOMOGENEOUS MIXTURE HAVING IMPROVED CATALYTIC CONVERSION CHARACTERISTICS FOR CATALYZING THE DIRECT CONVERSION OF ETHYL ALCOHOL TO BUTADIENE.
Claim 4
Independent Claim
121 words
A METHOD FOR MANUFACTURING A CATALYST USEFUL FOR THE DIRECT CATALYTIC CONVERSION OF ETHYL ALCOHOL TO BUTADIENE COMPRISING FORMING A SOLUTION OF CALCIUM IONS, NICKEL IONS AND PHOSPHATE IONS, SAID SOLUTION CONTAINING BETWEEN 7.5 AND 9.2 ATOMS OF CALCIUM PER ATOM OF NICKEL, RENDERING SAID SOLUTION NON-ACIDIC AND PRECIPITATING A NORMAL METAL PHOSPHATE MATERIAL COMPOSED OF PHOSPHATE RADICALS CHEMICALLY COMBINED WITH CALCIUM AND NICKEL IN THE RELATIVE PROPORTION OF FROM 7.5 TO 9.2 ATOMS OF CALCIUM PER ATOM OF NICKEL, COMMINGLING A MINOR WEIGHT PERCENTAGE OF SAID NORMAL METAL PHOSPHATE MATERIAL WITH A MAJOR WEIGHT PERCENTAGE OF MAGNESIA AND SILICA TO FORM A SUBSTANTIALLY HOMOGENEOUS MIXTURE HAVING IMPROVED CATALYTIC CONVERSION CHARACTERISTICS FOR CATALYZING THE DIRECT CONVERSION OF ETHYL ALCOHOL TO BUTADIENE.
References Cited (Backward Citations)
US2371809A
Cited
US2357855A
Cited
US2442319A
Cited
US2456367A
Cited
US2399164A
Cited
US2423681A
Cited
US2474032A
Cited
US2542813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |