US2650941A
Expired / Lapsed
US
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Conversion of carbohydrates to polyhydric alcohols
Assignee: Shell Development Co
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Filing: 1951-03-20
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Granted: 1953-09-01
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Expires: 1971-03-20
Abstract
No abstract record available.
Inventors
- 👤 Koome Jacob
- 👤 Nooijer Christiaan Nicolaas De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:52
CPC Classifications
C; C07; C07C; C07C31/00; C07C31/18; C07C31/26; B; B01; B01J; B01J23/00; B01J23/70; B01J37/00; B01J37/02; B01J37/0201
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
102 words
THE PROCESS FOR THE CONVERSION OF A MONOSACCHARIDE TO HEXITOL WHICH COMPRISES PASSING AN AQUEOUS SOLUTION OF SAID MONOSACCHARIDE AND HYDROGEN DOWNWARDLY THROUGH A BED OF SOLID CATALYST CONSISTING ESSENTIALLY OF ABOUT 25% TO ABOUT 90% NICKEL IN INTIMATE ADMIXTURE WITH ABOUT 75% TO ABOUT 10% OF SOLID CARRIER MATERIAL, ABOUT 20% TO ABOUT 60% OF SAID NICKEL CONTENT BEING IN THE FORM OF NICKEL SILICATE, THE REMAINDER OF SAID NICKEL CONTENT BEING IN THE FORM OF REDUCED NICKEL, AT A TEMPERATURE OF FROM ABOUT 100* C. TO ABOUT 180* C., AND A PRESSURE OF FROM ABOUT 2K TO ABOUT 200 ATMOSPHERES.
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) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |