US2779804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of vinyl chloride from 1, 2-dichloroethane and acetylene
Assignee: Societe Belge de lAzote et des Produits Chimiques du Marly SA
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Filing: 1954-10-26
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Granted: 1957-01-29
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Expires: 1974-10-26
Abstract
No abstract record available.
Inventors
- 👤 Braconier Frederic Fran Albert
- 👤 Jean Andre Robert Ovide Godart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:06
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/07; C07C17/08; B; B01; B01J; B01J27/00; B01J27/06; C07C17/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A PROCES FOR THE MANUFACTURING OF VINYL CHLORIDE WHICH COMPRISES PASSSING 1,2-DICHLOROETHANE, OVER A PYROLYSIS CATALYST COMPRISING ACTIVATED CARBON IMPREGNATED WITH FROM 20 TO 40% BY WEIGHT OF BARIUM CHLORIDE AND FROM 0.3 TO 0.7% MERCURIC CHLORIDE AT A TEMPERATURE FROM 350*C. TO 450*C. TO PRODUCE A GASEOUS PRODUCT COMPRISING VINYL CHLORIDE AND HYDROGEN CHLORIDE, ADDING ACETYLENE TO SAID PRODUCT AND PASSING THE GASEOUS MIXTURE THUS FORMED OVER A CATALYST COMPRISING ACTIVATED CARBON IMPREGNATED WITH ABOUT 10% OF MERCUIC CHLORIDE.
Claim 2
Dependent Claim
80 words
A PROCES FOR THE MANUFACTURING OF VINYL CHLORIDE WHICH COMPRISES PASSSING 1,2-DICHLOROETHANE, OVER A PYROLYSIS CATALYST COMPRISING ACTIVATED CARBON IMPREGNATED WITH FROM 20 TO 40% BY WEIGHT OF BARIUM CHLORIDE AND FROM 0.3 TO 0.7% MERCURIC CHLORIDE AT A TEMPERATURE FROM 350*C. TO 450*C. TO PRODUCE A GASEOUS PRODUCT COMPRISING VINYL CHLORIDE AND HYDROGEN CHLORIDE, ADDING ACETYLENE TO SAID PRODUCT AND PASSING THE GASEOUS MIXTURE THUS FORMED OVER A CATALYST COMPRISING ACTIVATED CARBON IMPREGNATED WITH ABOUT 10% OF MERCUIC CHLORIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |