Title:
CATALYST FOR PREPARING α-PHENYLETHANOL BY HYDROGENATION OF ACETOPHENONE, PREPARATION METHOD THEREOF AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/109629
Kind Code:
A1
Abstract:
Disclosed is a preparation method of a catalyst for liquid phase hydrogenation of acetophenone in preparation of α-phenylethanol, including: adding water, a small alcohol, a Gemini surfactant and an organic pore-forming agent to a reaction vessel, followed by adding a silica sol-gel and stirring uniformly to form an aqueous silica sol-gel dispersion; preparing an alkaline precipitant and a mixed salt solution containing salt compounds of copper, zinc, a rare earth metal and an alkaline earth metal, adding the two together to the aqueous silica sol-gel dispersion, followed by precipitation, ageing, filtration, washing, drying, calcination and molding to form the catalyst. The silica sol-gel and silicate serve as a complex silicon source. The organic pore-forming agent is added before the precipitation process. The catalyst is modified by Zn, a rare earth metal and an alkaline earth metal. The catalyst not only has high activity and good selectivity in the liquid phase hydrogenation of acetophenone for preparing α-phenylethanol, but also effectively increases the liquid resistance of the catalyst, and has high strength and good stability.
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Inventors:
LI ZUOJIN (CN)
YU HAIBO (CN)
ZHAN JISHAN (CN)
SHA YU (CN)
CHU NAIBO (CN)
LI YUAN (CN)
HUA WEIQI (CN)
YU HAIBO (CN)
ZHAN JISHAN (CN)
SHA YU (CN)
CHU NAIBO (CN)
LI YUAN (CN)
HUA WEIQI (CN)
Application Number:
PCT/CN2018/093616
Publication Date:
June 13, 2019
Filing Date:
June 29, 2018
Export Citation:
Assignee:
WANHUA CHEMICAL GROUP CO LTD (CN)
International Classes:
B01J23/78; B01J23/72; B01J23/83; B01J37/03; B01J37/08; C07C29/145; C07C33/22
Domestic Patent References:
| WO2016059431A1 | 2016-04-21 | |||
| WO2016198379A1 | 2016-12-15 |
Foreign References:
| CN108043414A | 2018-05-18 | |||
| CN107115895A | 2017-09-01 | |||
| CN102327774A | 2012-01-25 | |||
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| US4996374A | 1991-02-26 | |||
| CN1315226A | 2001-10-03 | |||
| CN1911883A | 2007-02-14 | |||
| EP0714877B1 | 1999-10-06 |
Attorney, Agent or Firm:
BOSS & YOUNG PATENT AND TRADEMARK LAW OFFICE (CN)
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