Ti-MWW molecular sieve synthesizing method
The invention discloses a Ti-MWW molecular sieve synthesizing method, which comprises the following steps: 1) uniformly mixing a substrate silicon source, boric acid, an organic template agent, water and sodium hydroxide, and crystallizing for 10-30 hours at 120-170 DEG C so as to obtain an MWW prec...
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| creator | XUE ZHAOTENG XIA JIANCHAO ZHU BINGYI WEN HUAIYOU TAN YUN HAN FENG |
| description | The invention discloses a Ti-MWW molecular sieve synthesizing method, which comprises the following steps: 1) uniformly mixing a substrate silicon source, boric acid, an organic template agent, water and sodium hydroxide, and crystallizing for 10-30 hours at 120-170 DEG C so as to obtain an MWW precursor; 2) placing the MWW precursor into ice-water bath for shock cooling, treating with a colloid mill, slowly adding a titanium source under the condition of ice-water bath, stirring uniformly, recrystallizing for 20-50 hours, then cooling, filtering, washing and drying to obtain a product, namely Ti-MWW raw powder; 3) exchanging the Ti-MWW raw powder and an ammonium solution, removing sodium out of a framework, suction-filtering, drying and roasting to obtain a Ti-MWW molecular sieve product. The synthesizing method disclosed by the invention is high in titanium source usage, the synthesized Ti-MWW molecular sieve does not contain non-framework titanium, and the catalytic activity is high; an inorganic base is a |
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The synthesizing method disclosed by the invention is high in titanium source usage, the synthesized Ti-MWW molecular sieve does not contain non-framework titanium, and the catalytic activity is high; an inorganic base is a</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING |
| title | Ti-MWW molecular sieve synthesizing method |
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