METHOD OF OBTAINING HEXAFLUORISOPROPANOL Russian patent published in 2009 - IPC C07C31/38 C07C29/143 

Abstract RU 2346924 C1

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.

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RU 2 346 924 C1

Authors

Igumnov Sergej Mikhajlovich

Vjazkov Vladimir Arkad'Evich

Dates

2009-02-20Published

2007-06-14Filed