METHOD OF REGENERATING HYDROGENATION CATALYST Russian patent published in 1997 - IPC

Abstract RU 2100071 C1

FIELD: hydrogenation catalysts. SUBSTANCE: invention relates to Cu/Ni/Cr catalyst on kaolin used to hydrogenation of 1,4-butinediol into 1,4-butanediol. Exhausted catalyst is subjected to treatment with 22-27 wt % nitric acid followed by heat regeneration of carrier at 360-400 C, impregnation with salt solution (170-180 g/l Ni, 43-46 g/l Cu, 12-13 g/l Cr), drying, and calcination at 360-400 C. EFFECT: improved procedure.

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RU 2 100 071 C1

Authors

Dates

1997-12-27—Published

1996-03-05—Filed