US2663622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of carbon disulfide
Assignee: Standard Oil Development Co
•
Filing: 1948-12-14
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Granted: 1953-12-22
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Expires: 1968-12-14
Abstract
No abstract record available.
Inventors
- 👤 William W Odell
- 👤 Charles E Morrell
- 👤 Harold W Scheeline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:16
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN THE PREPARATION OF CARBON DISULFIDE BY THE VAPOR PHASE REACTION OF SULFUR WITH A HYDROCARBON IN A REACTION ZONE IN THE PRESENCE OF A SOLID CATALYST AT A TEMPERATURE OF 425* C. TO 1000* C., THE IMPROVEMENT WHICH COMPRISES SUPPLYING THE NECESSARY HEAT FOR THE REACTION BY BURNING A COMBUSTIBLE SULFUR-CONTAINING MATERIAL IN AN OXYGEN-CONTAINING GAS IN A COMBUSTION ZONE IN THE PRESENCE OF THE CATALYST WHEREBY SULFUR IS PRODUCED AND WHEREBY THE HEAT OF THE EXOTHERMIC COMBUSTION REACTION IS IMPARTED TO THE CATALYST, AND PASSING THE SULFUR AND HEATED CATALYST FROM THE COMBUSTION ZONE TO THE REACTION ZONE IN THE ABSENCE OF ANY NON-CATALYTIC HEAT CARRYING SOLID.
Claim 2
Dependent Claim
109 words
IN THE PREPARATION OF CARBON DISULFIDE BY THE VAPOR PHASE REACTION OF SULFUR WITH A HYDROCARBON IN A REACTION ZONE IN THE PRESENCE OF A SOLID CATALYST AT A TEMPERATURE OF 425* C. TO 1000* C., THE IMPROVEMENT WHICH COMPRISES SUPPLYING THE NECESSARY HEAT FOR THE REACTION BY BURNING A COMBUSTIBLE SULFUR-CONTAINING MATERIAL IN AN OXYGEN-CONTAINING GAS IN A COMBUSTION ZONE IN THE PRESENCE OF THE CATALYST WHEREBY SULFUR IS PRODUCED AND WHEREBY THE HEAT OF THE EXOTHERMIC COMBUSTION REACTION IS IMPARTED TO THE CATALYST, AND PASSING THE SULFUR AND HEATED CATALYST FROM THE COMBUSTION ZONE TO THE REACTION ZONE IN THE ABSENCE OF ANY NON-CATALYTIC HEAT CARRYING SOLID.
References Cited (Backward Citations)
GB261990A
Cited
US2330934A
Cited
US2386202A
Cited
US2389810A
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US2508292A
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US2432520A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |