Vinyl chloride process
US3937744A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1971 |
| Grant date | Feb 10, 1976 |
| Priority date | — |
| Expiry date | Jun 15, 1991 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/154
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Process for producing vinyl chloride from ethane by contacting, in a first reactor, ethane and chlorine and/or hydrogen chloride, as fresh feed, and as recycle, hydrogen chloride, ethyl chloride, ethylene and unconverted ethane with a molten mixture, including cuprous chloride, cupric chloride and copper oxychloride, to produce a reaction effluent including vinyl chloride, dichloroethane, primarily 1,2-dichloroethane, and the aforementioned recycle components. The vinyl chloride is recovered as product, the recycle components are recovered and recycled to the first reactor, and the 1,2-dichloroethane is recovered and recycled to the first reactor or contacted in a second reactor with a molten mixture including cuprous and cupric chloride to dehydrochlorinate the 1,2-dichloroethane to vinyl chloride. The molten mixture from the first reactor or second reactor, if employed, is contacted in a third reactor with molecular oxygen to generate copper oxychloride and melt from the third reactor is passed to the first reactor. 1,1-dichloroethane, if produced, may be passed to the first or second reactor for dehydrochlorination to vinyl chloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.