Preparation method of silicon-germanium ISV zeolite molecular sieve

• Main Authors: WANG NAN, DU JINHAO, LIAO LIJUN, LIN QING, TAO FURONG, CUI YUEZHI, LIU ZHAOHUI, YUAN RUTING
• Format: Patent
• Language: Chinese; English
• Published: 20.07.2021
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention belongs to the technical field of molecular sieves, and particularly relates to a preparation method of a silicon-germanium ISV zeolite molecular sieve. In the preparation method, 6-azaspiro-[5,6]-dodecane molecules are used as an organic template agent for preparation. Compared with an existing template agent, the template agent used in the patent is simple in structure, the synthesis process is simple and easy to operate, and complex synthesis processes and purification steps are not needed. Hydroxyl is adopted to replace F<-> to serve as a mineralizer in synthesis of the ISV molecular sieve, and the silicon-germanium ISV molecular sieve which is complete in crystallization and unique in morphology can be obtained without adding fluoride. 本发明属于分子筛技术领域，尤其涉及到一种硅锗ISV沸石分子筛的制备方法。所述制备方法中，以6-氮杂螺-[5，6]-十二烷分子作为有机模板剂进行制备。相比于现有的模板剂，本专利报道使用的模板剂结构简单、合成过程操作简单易行，无需复杂的合成工艺和提纯步骤；ISV分子筛的合成采用氢氧根代替F-作为矿化剂，无需添加氟化物，就能够得到结晶完好，形貌独特的硅锗ISV分子筛。