Vysoka Skola Chemicko-technologicka

Ludek Vodicka

Ivo Peka

Jan Ulrich

Voktor Suchy

Jan Hajek

An economical procedure for the recovery of platinum from a spent catalyst involves subjecting the catalyst to fluorination with elementary fluorine or a mixture thereof with hydrogen fluoride at a temperature ranging from 100.degree.-600.degree. C. The resultant platinum fluoride is then converted to platinum in elemental form.

Method for the recovery of platinum from spent catalysts

A technique for recovering palladium from a spent palladium catalyst or ash thereof involves fluorinating the catalyst or ash at elevated temperatures to yield palladium fluoride and decomposing the fluoride with a mineral acid at a temperature ranging from 90.degree. - 100.degree. C.

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Ludek Vodicka