US2610215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing chlorinated hydrocarbons
Assignee: Solvay SA
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Filing: 1950-04-11
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Granted: 1952-09-09
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Expires: 1970-04-11
Abstract
No abstract record available.
Inventors
- 👤 Vanharen Lambert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:37
CPC Classifications
C; C07; C07C; C07C21/00; C07C21/02; C07C21/04; C07C21/12; C07C21/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
IN A CYCLIC PROCESS FOR THE SIMULTANEOUS PRODUCTION OF TRICHLOROETHYLENE AND PERCHLOROETHYLENE, THE STEPS WHICH COMPRISE SIMULTANEOUSLY INTRODUCING CHLORINE GAS, ACETYLENE AND TRICHLOROETHYLENE INTO A CHLORINATION ZONE SUBSTANTIALLY FILLED WITH A MIXTURE OF TETRACHLOROETHANE AND PENTACHLOROETHANE IN THE LIQUID PHASE, SAID ACETYLENE BEING INTRODUCED AT THE MAXIMUM RATE COMPATIBLE WITH NO FREE ACETYLENE REACHING THE TOP OF THE CHLORINATION ZONE AND SAID CHLORINE GAS BEING INTRODUCED AT A RATE SLIGHTLY IN EXCESS OF THAT STOICHIOMATRICALLY REQUIRED FOR THE ADDITIVE CHLORINATION OF BOTH SAID ACETYLENE AND SAID TRICHLOROETHYLENE, THEREBY FORMING TETRACHLOROETHANE AND PENTACHLOROETHANE, WITHDRAWING THE REACTION MIXTURE FROM THE CHLORINATION ZONE SUBJECTING SAID MIXTURE TO DEHYDROCHLORINATION, WHEREBY TO OBTAIN A MIXTURE OF TRICHLOROETHYLENE AND PERCHLOROETHYLENE, SEPARATING SAID TRICHLOROETHYLENE FROM SAID PERCHLOROETHYLENE, WITHDRAWING A PORTION OF SAID TRICHLOROETHYLENE AND RETURNING THE REMAINING PORTION OF SAID TRICHLOROETHYLENE TO SAID CHLORINATION ZONE.
Claim 2
Dependent Claim
138 words
IN A CYCLIC PROCESS FOR THE SIMULTANEOUS PRODUCTION OF TRICHLOROETHYLENE AND PERCHLOROETHYLENE, THE STEPS WHICH COMPRISE SIMULTANEOUSLY INTRODUCING CHLORINE GAS, ACETYLENE AND TRICHLOROETHYLENE INTO A CHLORINATION ZONE SUBSTANTIALLY FILLED WITH A MIXTURE OF TETRACHLOROETHANE AND PENTACHLOROETHANE IN THE LIQUID PHASE, SAID ACETYLENE BEING INTRODUCED AT THE MAXIMUM RATE COMPATIBLE WITH NO FREE ACETYLENE REACHING THE TOP OF THE CHLORINATION ZONE AND SAID CHLORINE GAS BEING INTRODUCED AT A RATE SLIGHTLY IN EXCESS OF THAT STOICHIOMATRICALLY REQUIRED FOR THE ADDITIVE CHLORINATION OF BOTH SAID ACETYLENE AND SAID TRICHLOROETHYLENE, THEREBY FORMING TETRACHLOROETHANE AND PENTACHLOROETHANE, WITHDRAWING THE REACTION MIXTURE FROM THE CHLORINATION ZONE SUBJECTING SAID MIXTURE TO DEHYDROCHLORINATION, WHEREBY TO OBTAIN A MIXTURE OF TRICHLOROETHYLENE AND PERCHLOROETHYLENE, SEPARATING SAID TRICHLOROETHYLENE FROM SAID PERCHLOROETHYLENE, WITHDRAWING A PORTION OF SAID TRICHLOROETHYLENE AND RETURNING THE REMAINING PORTION OF SAID TRICHLOROETHYLENE TO SAID CHLORINATION ZONE.
References Cited (Backward Citations)
US2280794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |