Patent US3738815A successfully refreshed from Google Patents.
US3738815A
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US
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Reactor for removing olefins from acetylenic and olefin-containing gaseous hydrocarbon mixtures
Assignee: Dow Chemical Co
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Filing: 1970-10-09
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Granted: 1973-06-12
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Expires: 1990-10-09
Abstract
Abstract OLEFINS ARE SUBSTANTIALLY REMOVED FROM AN ACETYLENIC AND OLEEFIN-CONTAINING GASEOUS HYDROCARBON MIXTURE BYY CHLORINATING SAID MIXTURE IN THE PRESENCE OF THE LIQUID CHLORINATION PRODUCTS OF SAID MIXTURE WHEREIN THE TEMPERATURE IS BELOW ABOUT 60* C. THE PROCESS IS CONDUCTED IN A NOVEL REACTOR COMPSITING A CLOSED TUBULAR LOOP HAVING FEED PORTS, CIRCULATING MEANS, A DEGASIFYING CHAMBER INCLUDING SEPARATE OUTLET PORTS FOR LIQUID AND GAS, AND COOLING MEANS FOR THE LOOP, AND THE RESULTING GASEOUS PRODUCT IS USEFUL AS A WELDING AND CUTTING GAS.
Inventors
- 👤 C Pawloski
- 👤 R Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:50
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10; B; B01; B01J; B01J19/00; B01J19/24; B01J19/2415; B01J19/2435; C07C17/013; C07C17/02; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/0009; Y; Y10; Y10S; Y10S159/00; Y10S159/10
Claims Analysis
Total Claims: 0
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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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |