Method for avoiding the generation of by-products during the production of haloalkane compounds
US8722946B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2012 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Jul 26, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J23/745
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a process for the manufacture of haloalkane compounds, and more particularly, to an improved process for the manufacture of the compound 1,1,1,3,3-pentachloropropane (HCC-240fa), which mitigates the formation of by-products. The present invention is also useful in the manufacture of other haloalkane compounds such as HCC-250 and HCC-360. One embodiment of the process comprises a method and system for avoiding the formation of polyvinyl chloride during the production of HCC-240fa from CCl4, in which vinyl chloride (VCM) is fed into a reactor as a vapor instead of as a liquid, using a diffusing device to further increase the contact surface between VCM vapor and CCl4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.