Method for producing chloroformates
US3966786A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1972 |
| Grant date | Jun 29, 1976 |
| Priority date | — |
| Expiry date | Jan 28, 1992 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00094
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Various chloroformates are produced from aliphatic, substituted aliphatic, cycloaliphatic, aromatic and arylaliphatic alcohols having up to 20 carbon atoms and of phosgene in a continuous, concurrent flow process, with the alcohol starting material being atomized into the reactor, whereby the reaction takes place largely in the fog phase. The vapor pressure of the phosgene can be utilized for the creation of the fog phase and the termination of the atomized state can be used for efficiently separating the chloroformate end product from the hydrogen chloride by product. The process can be carried out in a reactor comprising a reaction zone, a charged zone and a zone for the recovery of the end product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.