US3851001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation of aromatic hydrocarbons to the corresponding saturated hydrocarbon
Assignee: Texaco Inc
•
Filing: 1973-10-31
•
Granted: 1974-11-26
•
Expires: 1993-10-31
Abstract
Abstract 1. A PROCESS FOR THE PRODUCTION OF CYCLOHEXANE HAVING A PURITY OF AT LEAST 99.5% WHICH COMPRISES FORMING A MIXTURE CONSISTING ESSENTIALLY OF BENZENE AND CYCLOHEXANE, PASSING SAID MIXTURE IN THE PRESENCE OF ADDED HYDROGEN INTO HYDROGENATION ZONE AD INTO CONTACT WITH A SUPPORTED PLATINUM CATALYST PROMOTED WITH BETWEEN ABOUT 0.01 AND 5.0 WT. PERCENT THALLIUM BASED ON THE CATALYST COMPOSITE AND SEPARATING FROM THE HYDROGENATION ZONE EFFLUENT PRODUCT CYCLOHEXANE HABING A PURITY OF AT LEAST 99.5%.
Inventors
- 👤 R Suggitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:02
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/62; C; C07; C07C; C07C5/00; C07C5/02; C07C5/10; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/08; C07C2523/38; C07C2523/40; C07C2523/42; C07C2523/54; C07C2523/56; C07C2523/62; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS FOR THE PRODUCTION OF CYCLOHEXANE HAVING A PURITY OF AT LEAST 99.5% WHICH COMPRISES FORMING A MIXTURE CONSISTING ESSENTIALLY OF BENZENE AND CYCLOHEXANE, PASSING SAID MIXTURE IN THE PRESENCE OF ADDED HYDROGEN INTO HYDROGENATION ZONE AD INTO CONTACT WITH A SUPPORTED PLATINUM CATALYST PROMOTED WITH BETWEEN ABOUT 0.01 AND 5.0 WT. PERCENT THALLIUM BASED ON THE CATALYST COMPOSITE AND SEPARATING FROM THE HYDROGENATION ZONE EFFLUENT PRODUCT CYCLOHEXANE HABING A PURITY OF AT LEAST 99.5%.
Claim 2
Dependent Claim
76 words
A PROCESS FOR THE PRODUCTION OF CYCLOHEXANE HAVING A PURITY OF AT LEAST 99.5% WHICH COMPRISES FORMING A MIXTURE CONSISTING ESSENTIALLY OF BENZENE AND CYCLOHEXANE, PASSING SAID MIXTURE IN THE PRESENCE OF ADDED HYDROGEN INTO HYDROGENATION ZONE AD INTO CONTACT WITH A SUPPORTED PLATINUM CATALYST PROMOTED WITH BETWEEN ABOUT 0.01 AND 5.0 WT. PERCENT THALLIUM BASED ON THE CATALYST COMPOSITE AND SEPARATING FROM THE HYDROGENATION ZONE EFFLUENT PRODUCT CYCLOHEXANE HABING A PURITY OF AT LEAST 99.5%.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |