US2492983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methanol production
Assignee: Houdry Process Corp
•
Filing: 1946-05-31
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Granted: 1950-01-03
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Expires: 1966-05-31
Abstract
No abstract record available.
Inventors
- 👤 Aristid V Grosse
- 👤 John C Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:17
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE PROCESS WHICH COMPRISES REACTING SULFUR TRIOXIDE AND METHANE UNDER REACTION CONDITIONS INCLUDING TEMPERATURES IN THE RANGE OF 100* TO 450*C. AND REACTION PRESSURES OF AT LEAST ATMOSPHERIC PRESSURE TO FORM REACTION PRODUCTS COMPRISING A METHYL ESTER OF SULFURIC ACID AND AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF SULFONIC ACIDS OF METHANE AND METHYL ESTERS THEREOF, HYDROLYZING SAID METHYL ESTER OF SULFURIC ACID SO AS TO OBTAIN METHANOL, PROCESSING SAID REACTION PRODUCTS SO AS TO OBTAIN METHANE SULFONIC ACID THEREFROM, AND THERMALLY DECOMPOSING SAID METHANE SULFONIC ACID TO FORM SULFUR DIOXIDE AND METHANOL.
Claim 2
Dependent Claim
96 words
THE PROCESS WHICH COMPRISES REACTING SULFUR TRIOXIDE AND METHANE UNDER REACTION CONDITIONS INCLUDING TEMPERATURES IN THE RANGE OF 100* TO 450*C. AND REACTION PRESSURES OF AT LEAST ATMOSPHERIC PRESSURE TO FORM REACTION PRODUCTS COMPRISING A METHYL ESTER OF SULFURIC ACID AND AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF SULFONIC ACIDS OF METHANE AND METHYL ESTERS THEREOF, HYDROLYZING SAID METHYL ESTER OF SULFURIC ACID SO AS TO OBTAIN METHANOL, PROCESSING SAID REACTION PRODUCTS SO AS TO OBTAIN METHANE SULFONIC ACID THEREFROM, AND THERMALLY DECOMPOSING SAID METHANE SULFONIC ACID TO FORM SULFUR DIOXIDE AND METHANOL.
References Cited (Backward Citations)
US2081166A
Cited
US2383752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |