US2819950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of hydrogen sulfide to sulfur with quinones
Assignee: Texas Gulf Sulphur Co
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Filing: 1952-03-27
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Granted: 1958-01-14
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Expires: 1972-03-27
Abstract
No abstract record available.
Inventors
- 👤 Richard A Patton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:12
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/04; C01B17/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A PROCESS OF DECOMPOSING HYDROGEN SULFIDE COMPRISING CIRCULATING A FLUID ACID MEDIUM IN A CYCLIC PATH, CONVEYING A QUINONE HAVING AN OXIDATION POTENTIAL OF AT LEAST 0.2 VOLT IN SAID MEDIUM TO A FIRST REACTION ZONE IN SAID PATH, INTRODUCING HYDROGEN SULFIDE INTO SAID ZONE AND REACTING IT WITH SAID QUINONE, THEREBY CONVERTING SAID HYDROGEN SULFIDE SUBSTANTIALLY QUANTITATIVELY INTO FREE SULFUR AND REDUCING AT LEAST PART OF SAID QUINONE SUBSTANTIALLY QUANTITATIVELY TO THE CORRESPONDING HYDROQUINONE, AND REMOVING SULFUR FROM THE REACTION PRODUCTS, CONVEYING SAID HYDROQUINONE IN SAID MEDIUM TOGETHER WITH UNREACTED QUINONE TO A SECOND REACTION ZONE IN SAID PATH AND OXIDIZING THE HYDROQUINONE BACK TO THE QUINONE IN SAID SECOND REACTION ZONE.
Claim 2
Dependent Claim
113 words
A PROCESS OF DECOMPOSING HYDROGEN SULFIDE COMPRISING CIRCULATING A FLUID ACID MEDIUM IN A CYCLIC PATH, CONVEYING A QUINONE HAVING AN OXIDATION POTENTIAL OF AT LEAST 0.2 VOLT IN SAID MEDIUM TO A FIRST REACTION ZONE IN SAID PATH, INTRODUCING HYDROGEN SULFIDE INTO SAID ZONE AND REACTING IT WITH SAID QUINONE, THEREBY CONVERTING SAID HYDROGEN SULFIDE SUBSTANTIALLY QUANTITATIVELY INTO FREE SULFUR AND REDUCING AT LEAST PART OF SAID QUINONE SUBSTANTIALLY QUANTITATIVELY TO THE CORRESPONDING HYDROQUINONE, AND REMOVING SULFUR FROM THE REACTION PRODUCTS, CONVEYING SAID HYDROQUINONE IN SAID MEDIUM TOGETHER WITH UNREACTED QUINONE TO A SECOND REACTION ZONE IN SAID PATH AND OXIDIZING THE HYDROQUINONE BACK TO THE QUINONE IN SAID SECOND REACTION ZONE.
References Cited (Backward Citations)
GB168504A
Cited
US1855353A
Cited
DE521648C
Cited
US2015038A
Cited
US2135368A
Cited
US2158525A
Cited
US2488000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |