FIELD: chemistry.
SUBSTANCE: invention concerns method of obtaining hexafluorisopropanol applied as solvent for some polymer materials, as valuable emulsifier and as raw material for obtaining sevoflurane, a new generation anesthetic. Method involves recovery of hexafluoroacetone by reducer. Hexafluoroacetone trihydrate is recovered by using hydrazine-hydrate as reducer at mol ration of hexafluoroacetone trihydrate to hydrazine-hydrate of 1:(1.1-1.5), with further addition of hydrogen peroxide in the form of 36-50% solution.
EFFECT: obtaining pure target product at high output rate by cost-effective and simple method.
2 ex
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Authors
Dates
2009-02-20—Published
2007-06-14—Filed