US3121673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of regenerating a liquid catalyst
Assignee: Hoechst AG
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Filing: 1959-04-14
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Granted: 1964-02-18
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Expires: 1979-04-14
Abstract
No abstract record available.
Inventors
- 👤 Riemenschneider Wilhelm
- 👤 Paszthory Emmerich
- 👤 Steinmetz Alfons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:17
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/40; B01J31/4015; B01J31/4092; B01J27/00; B01J27/06; B01J31/02; B01J31/04; B01J31/26; B01J31/28; B01J31/30; B01J31/4023; B01J31/4038; C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C53/00; C07C53/08; B01J2231/00; B01J2231/70; B01J2531/00; B01J2531/10; B01J2531/16; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A PROCESS OF REGENERATING A LIQUID CATALYST FOR CONVERSION OF AN OLEFINIC CARBON ATOM OF AN OLEFINIC HYDROCARBON TO A CARBONYL GROUP BY CONTACTING SAID HYDROCARBON IN A NEUTRAL TO ACID MEDIUM WITH OXYGEN AND SIAD CATALYST, SAID LIQUID CATALYST CONSISTING ESSENTIALLY OF (A) A SALT OF A NOBLE METAL OF THE GROUP CONSISTING OF PALLADIUM, IRIDIUM, RUTHENIUM, RHODIUM AND PLATINUM AND (B) AS A REDOX SYSTEM, AN INORGANIC SALT OF A METAL SHOWING SEVERAL VALENCE STATES UNDER THE REACTION CONDITIONS APPLIED, SAID CATALYST BEING DISSOLVED IN WATER AT LEAST IN PART, SAID PROCESS CONSISTING ESSENTIALLY OF CONTACTING THE CATALYST WITH AN OXIDIZING AGENT OF THE GROUP CONSISTING OF NITRIC ACID, NITROSYL CHLORIDE AND MIXTURES THEREOF.
Claim 2
Dependent Claim
116 words
A PROCESS OF REGENERATING A LIQUID CATALYST FOR CONVERSION OF AN OLEFINIC CARBON ATOM OF AN OLEFINIC HYDROCARBON TO A CARBONYL GROUP BY CONTACTING SAID HYDROCARBON IN A NEUTRAL TO ACID MEDIUM WITH OXYGEN AND SIAD CATALYST, SAID LIQUID CATALYST CONSISTING ESSENTIALLY OF (A) A SALT OF A NOBLE METAL OF THE GROUP CONSISTING OF PALLADIUM, IRIDIUM, RUTHENIUM, RHODIUM AND PLATINUM AND (B) AS A REDOX SYSTEM, AN INORGANIC SALT OF A METAL SHOWING SEVERAL VALENCE STATES UNDER THE REACTION CONDITIONS APPLIED, SAID CATALYST BEING DISSOLVED IN WATER AT LEAST IN PART, SAID PROCESS CONSISTING ESSENTIALLY OF CONTACTING THE CATALYST WITH AN OXIDIZING AGENT OF THE GROUP CONSISTING OF NITRIC ACID, NITROSYL CHLORIDE AND MIXTURES THEREOF.
References Cited (Backward Citations)
US2690457A
Cited
GB280712A
Cited
US1999620A
Cited
US1945067A
Cited
DE713791C
Cited
FR891209A
Cited
US2523686A
Cited
GB767409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-17 | 1967-08-19 | 1968-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-17 | 1971-08-19 | 1972-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-17 | 1975-08-19 | 1976-02-18 | $7700.00 | Window Closed / Lapsed |