US2647151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of methanethiol
Assignee: Pure Oil Co
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Filing: 1949-10-22
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Granted: 1953-07-28
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Expires: 1969-10-22
Abstract
No abstract record available.
Inventors
- 👤 Richmond T Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:58
CPC Classifications
C; C07; C07C; C07C321/00; B; B01; B01J; B01J23/00; B01J23/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
THE METHOD OF MAKING METHANETHIOL FROMOM METHANOL, AND HYDROGEN SULFIDE WHICH COMPRISES, PASSING A MIXTURE OF METHANOL AND HYDROGEN SULFIDE AS REACTANTS, AND INTRODUCING HYDROGEN IN THE AMOUNT ABOVE 0.005 BUT LESS THAN ABOUT 0.20 MOL PER CENT OF SAID REACTANTS INTO A REACTION ZONE, CONTACTING SAID REACTANTS THEREIN IN THE PRESENCE OF ADDED HYDROGEN WITH A CATALYST COMPRISING THORIA SUPPORTED ON A CARRIER AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 800* TO 450* C. AND RECOVERING METHANETHIOL FROM THE REACTION ZONE.
Claim 2
Independent Claim
83 words
THE METHOD OF MAKING METHANETHIOL FROMOM METHANOL, AND HYDROGEN SULFIDE WHICH COMPRISES, PASSING A MIXTURE OF METHANOL AND HYDROGEN SULFIDE AS REACTANTS, AND INTRODUCING HYDROGEN IN THE AMOUNT ABOVE 0.005 BUT LESS THAN ABOUT 0.20 MOL PER CENT OF SAID REACTANTS INTO A REACTION ZONE, CONTACTING SAID REACTANTS THEREIN IN THE PRESENCE OF ADDED HYDROGEN WITH A CATALYST COMPRISING THORIA SUPPORTED ON A CARRIER AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 800* TO 450* C. AND RECOVERING METHANETHIOL FROM THE REACTION ZONE.
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) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |