Synthesis method for ETS-10 titanosilicate molecular sieve

US9382124B2 · kind B2 · utility

Assignees

• China University of Petroleum—Beijing · CN
• China National Petroleum Corporation · CN

Inventors

• Baojian Shen · Changping District, CN
• Jing Li · Shanghai, CN
• Xiaohua Wang · Tuji, CN
• Wencheng Zhang · Yuhui District, CN
• Qiaoxia Guo · Beijing, CN
• Bojun Shen · Changping District, CN
• Bing Feng · Beijing, CN
• Guangming Wen · Chongfeng Jingyingsuo, CN
• Zhihua Zhang · Lo Wu, CN
• Ran Tian · Qingdao, CN

Key dates

• Filing date: Dec 13, 2012
• Grant date: Jul 5, 2016
• Expiry date: Nov 21, 2034

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2235/30
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention relates to a synthesis method for ETS-10 titanosilicate molecular sieves. The method comprises the steps of mixing a titanium oxide hydrosol, a silicon source, a sodium hydroxide, a fluorine-containing mineralizer and a water to give a gel and adjusting the pH thereof to 10.4 to 10.8; and hydrothermal crystallizing the gel at 170 to 250° C. for 10 to 100 hours to obtain the ETS-10 titanosilicate molecular sieves. In the synthesis method for ETS-10 titanosilicate molecular sieves provided by the present invention, a titanium oxide hydrosol is used as the titanium source to synthesize the ETS-10 titanosilicate molecular sieves, and the problem that conventional soluble titanium salt-based titanium sources tend to hydrolyze and the problem of poor dispersibility for the titanium source system of insoluble titanium oxide are therefore prevented. The ETS-10 titanosilicate molecular sieves synthesized has high purity and high crystallinity.