FIELD: chemistry.
SUBSTANCE: invention relates to regeneration of spent metal-containing catalysts for organic synthesis. Described is a method of regenerating metal oxide industrial catalysts for organic synthesis, comprising a support with oxides of Cu and Bi or Cu, Ni and Cr, the method involving treatment of the spent catalyst with salicylalaniline solution in dimethyl formamide with concentration between 0.1 and 0.5 mol, filtration of the solution of the complex compound, which is adsorbed directly on the cleaned support which is silica gel or zeolite obtained after filtration, and the obtained adsorbent undergoes thermal decomposition on the surface of the support at temperature 150-200°C.
EFFECT: described catalyst regeneration method enables multiple regenerations, lowers power consumption of the regeneration process while simplifying the process and without aggressive and toxic media.
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