METHOD OF REGENERATION OF SORBENTS-CATALYSTS FROM INACTIVATED PROTECTIVE MEANS Russian patent published in 2006 - IPC B01J20/34 C01B31/16 

FIELD: sorption technique; regeneration of sorption-catalytic properties of catalysts from inactivated protective means at expired term of storage.

SUBSTANCE: proposed method includes impregnation of copper and chromium with carbon dioxide-ammonium complexes at content of copper of 0.5-5.0%, chromium of 0.1-1.0% and triethylene diamine of 0.5-3.0% followed by heat treatment in fluidized-bed furnace; prior to impregnation, catalysts are neutralized and slightly dried at temperature of t=90-150°C to moisture content of 1-7%; after impregnation, product is aged for 1-2 h and after heat treatment in fluidized-bed furnace, sorbent-catalyst is sieved and fraction with size of grains of 0.5-2.0 mm is selected. Proposed method makes it possible to restore initial activity of sorbents-catalysts at proper homogeneity and stability of this parameter.

EFFECT: enhanced efficiency.

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