METHOD OF REGENERATION OF PERFLUORINATED SULFOACID AS ANHYDROUS FORM FROM AQUEOUS SOLUTION Russian patent published in 2000 - IPC

Abstract RU 2147575 C1

FIELD: organic chemistry, chemical technology. SUBSTANCE: invention describes method of regeneration of perfluorinated sulfoacid as an anhydrous form from an aqueous solution involving stages of an aqueous solution concentrating and acid distilling off as an anhydrous form using additional agent, for example, weak base added to an aqueous solution. EFFECT: simplified process. 9 cl, 15 ex

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RU 2 147 575 C1

Authors

Sven Ivar Khommel'Toft

Dates

2000-04-20—Published

1995-06-09—Filed