1,3-Dichloro-2-propanol → 1,3-Dichloro-2-propanol

British Patent Specification 974,164, for example, discloses a process and apparatus for the production of epichlorohydrin from dichlorohydrin in which an aqueous reaction medium comprising an inorganic alkali hydroxide, water and dichlorohydrin are mixed and then treated with steam in a reactor column at a temperature below 55° C. to strip epichlorohydrin formed by the reaction between the inorganic alkali hydroxide and dichlorohydrin from the reaction mixture as a gaseous water-epichlorohydrin azeotrope. The overhead is condensed and separated in a liquid-liquid phase separator into an aqueous phase, which is recycled to the dehydrochlorination reactor column, and an organic phase, which is fed to a drying column to remove epichlorohydrin and residual water as a vapor phase. The vapor phase is condensed and recycled to the liquid-liquid phase separator to remove residual water from the drying column.

1. additionare mixed
2. additiontreated with steam in a reactor column at a temperature below 55° C.

ORD record

ord-8c699cde1cd144f5a011271601981f1b

Source dataset

uspto-grants-2012_10

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08298500B2