Jiangsu Guowang High-technique Fiber Co., Ltd.

Junsong Tang

Shuchang Bian

A nano-supported solid-phase titanium-based multi-metal catalyst, a preparation method therefor and use thereof are provided. The catalyst comprises a carrier and an active component, the active component comprises a main active component and a secondary active component. The preparation method comprises the following steps: precipitating reaction a suspension of the carrier, a water-soluble scandium/magnesium/cobalt/zinc salt and a water-soluble hydroxide, filtering and heating treatment so that the carrier is loaded with the secondary active component; reacting a titanium source with an acid to obtain a reaction mixture; reacting the suspension of the carrier loaded with the secondary active component with the reaction mixture to obtain a catalyst precursor; and reacting the catalyst precursor with a silicate and water so that the carrier is loaded with the main active component. When used for polyester synthesis, the catalyst can inhibit the hydrolysis of titanium, significantly improve polymerization activity, inhibit the occurrence of side reactions.

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Suzhou, China

Junsong Tang