Simultaneous production of higher chloromethanes
US4765876A · kind A · utility
2Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1987 |
| Grant date | Aug 23, 1988 |
| Priority date | — |
| Expiry date | Sep 22, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C19/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The higher chloromethanes, i.e., CH.sub.2 Cl.sub.2, CHCl.sub.3 and CCl.sub.4, are simultaneously produced 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 said first and said second reaction zones A and B, separating higher chloromethanes from said combined reaction products, and recycling at least one of said separated higher chloromethanes CH.sub.2 Cl.sub.2 and CHCl.sub.3 as chlorination feed to said second reaction zone B.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.