Simultaneous producting of higher chloromethanes
US4985214A · kind A · utility
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23Claims
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Key dates
| Filing date | May 3, 1988 |
| Grant date | Jan 15, 1991 |
| Priority date | — |
| Expiry date | May 3, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C19/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Apparatus for the production of higher chloromethanes, i.e, CH.sub.2 Cl.sub.2, CHCl.sub.3 and CCl.sub.4, by chlorinating methyl chloride with chlorine in a first reaction zone A, chlorinating at least one of the higher chloromethanes CH.sub.2 Cl.sub.2 and CHCl.sub.3 with chlorine in a parallel second reaction zone B, combining the reaction products from the first and second reaction zones A and B, separating higher chloromethanes from the combined reaction prodcuts, and recycling at least one of the separated higher chloromethanes CH.sub.2 Cl.sub.2 and CHCl.sub.3 as chlorination feed to the second reaction zone B.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.