PROCESS FOR THE PREPARATION OF PURE HYDRATES OF FLUORAL AND OF HEXAFLUOROACETONE FROM HEMIACETALS

摘要

A process for preparing pure fluoral hydrate or hexafluoroacetone hydrate which comprises reacting a hemiacetal with the formula wherein R is hydrogen or CF3, with water in a distillation column, removing respectively the methanol or ethanol produced at the head of the column, and recovering at the bottom of the column the pure hydrate so produced.