Treatment of spent cracking catalysts

Details Treatment of spent cracking catalysts Treatment of spent cracking catalysts

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B01J 29/06 (2006.01) B01J 29/90 (2006.01) B01J 38/08 (2006.01) B01J 38/66 (2006.01) C10G 11/05 (2006.01) C10G 11/06 (2006.01)

Patent

CA 2015388

32651CA ABSTRACT A process for reactivating a spent, metal-contaminated zeolite-containing cracking catalyst composition comprises the sequential steps of contacting the catalyst composition with dissolved ammonium compound (preferably NH4NO3), contacting with a fluorine compound (preferably NH4F), and treatment with a passivating agent (preferably Mg, Ca, B, Al, P and/or Sb). The reactivated cracking catalyst obtained by this reactivation process is employed in a catalytic cracking process.

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