STA-18, a new member of the SFW family of molecular sieve type, manufacturing method and use

摘要

A molecular chain STA-18 having a SFW structure and containing phosphorus in a framework is described. (From diDABCO-C6) or 1,6- (1,4-diazabicyclo [2.2.2] octane) hexane cation (from diDABCO-C6) (From diDABCO-C7) or 1,8- (1,4-diazabicyclo [2.2.2] octane) octyl cation (from diDABCO-C8) ) May be used as the SDA. Lower alkylammonium hydroxides, such as tetrabutylammonium hydroxide, can be used as pH adjusting agents to make SAPO STA-18. STA-18C, a calcined product formed from STA-18AP, is also described. Methods for preparing metal-containing firing counterparts of STA-18AP, STA-18C and STA-18C are described in various processes, such as the treatment of exhaust gases and the conversion of methanol to olefins to STA-18C and STA- Together with a method of using water.