专利详情

专利名称	Solvothermal synthesis process of SAPO molecular sieves and catalysts prepared thereby
申请号	US201113976458	专利类型	US
公开（公告）号	US9168516(B2)	公开（授权）日	2015.10.27
申请（专利权）人	中国科学院大连化学物理研究所	发明（设计）人	Tian Peng;Liu Zhongmin;Zhang Ying;Fan Dong;Su Xiong
主分类号	C01B39/54	IPC主分类号	C01B39/54;B01J29/85;C07C1/20;C01B37/08
专利有效期	Solvothermal synthesis process of SAPO molecular sieves and catalysts prepared thereby 至Solvothermal synthesis process of SAPO molecular sieves and catalysts prepared thereby	法律状态
说明书摘要	A solvothermal synthesis process of the SAPO molecular sieves and catalysts prepared thereby are provided. The synthesis process comprises the following steps: a) an organic amine, an aluminum source, a phosphorus source, a silicon source, and water are mixed in a molar ratio of 6-30:1:0.5-5:0.01-1.0:0.1-15, to obtain an initial mixture for preparing the SAPO molecular sieves, wherein the molar ratio of water to the organic amine is less than 2.0; b) the initial mixture obtained in the step a) is maintained at 30-60° C. to and aged with stirring for not more than 24 hours, to obtain an initial gel; c) the initial gel obtain in the step b) is crystallized at 150-250° C. for 0.5-15 days. The SAPO molecular sieves prepared thereby are used, after being calcined at 400-700° C. in air, as catalysts for acid-catalyzed reactions or for conversion reactions of oxygen-containing compounds to olefins.