Regeneration of phosphorus poisoned automotive catalysts

Details Regeneration of phosphorus poisoned automotive catalysts Regeneration of phosphorus poisoned automotive catalysts

B - Operations, Transporting

01

J

252/87

B01J 23/96 (2006.01) B01D 53/94 (2006.01)

Patent

CA 1250567

REGENERATION OF PHOSPHORUS POISONED AUTOMOTIVE CATALYSTS Abstract of the Disclosure Regeneration of a phosphorus poisoned automotive exhaust catalyst is accomplished in a preferred embodiment by washing the catalyst or soaking it to the point of incipient wetness with an aqueous solution of an acid such as HCl, HNO3 or oxalic acid and subsequent heating of the wetted catalyst in air or other oxygen-containing gas.

489994

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