Patent ID: 7488700
Filing Date: 2009-02-10
Classification: B01J,C10G

Abstract:
1. A hydrothermally stable porous molecular sieve catalyst, which consists of a product obtained by the evaporation of water from a raw material mixture comprising 100 parts by weight of a molecular sieve having a framework of —Si—OH—Al—, 0.0 1-5.0 parts by weight of a water-insoluble metal salt, and 0.05-17.0 parts by weight of a phosphate compound selected from a group consisting of phosphoric acid (H 3 PO 4 ), ammoniunm phosphate and alkyl phosphate; in which surface pores of the molecular sieve are modified with one of compounds represented by following formulas 1 to 3: [Formula 1] M [Formula 2] M [Formula 3] Mx(PO