Title:
OXOVANADIUM PHOSPHATE CATALYST, AND PREPARATION METHOD AND APPLICATION THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/153387
Kind Code:
A1
Abstract:
Provided are an oxovanadium phosphate catalyst, and a preparation method and an application therefor. The method comprises: 1) mixing and reacting a vanadium source, a choline chloride-organic carboxylic acid eutectic solvent, and alcohol; 2) mixing the obtained reaction product with a phosphorus source, raising the temperature to a temperature higher than the melting point of the eutectic solvent, and continuing the reaction to obtain an oxovanadium phosphate precursor; and 3) calcining to obtain the oxovanadium phosphate catalyst. The alcohol is: benzyl alcohol or a mixture of C3-C8 monohydric alcohol and benzyl alcohol. The present method uses a green and inexpensive eutectic solvent to strengthen the preparation of the oxovanadium phosphate catalyst, avoiding the disadvantages of the prior art, and overcoming the problems of low yield and poor selectivity when used in a reaction to prepare maleic anhydride by catalytic n-butane selective oxidisation.
Inventors:
LIU RUIXIA (CN)
HE BIN (CN)
ZHANG RUIRUI (CN)
TANG HONGGUO (CN)
ZHANG SUOJIANG (CN)
HE BIN (CN)
ZHANG RUIRUI (CN)
TANG HONGGUO (CN)
ZHANG SUOJIANG (CN)
Application Number:
PCT/CN2018/077705
Publication Date:
August 15, 2019
Filing Date:
March 01, 2018
Export Citation:
Assignee:
INST PROCESS ENG CAS (CN)
International Classes:
B01J27/199; B01J27/198; C07D307/60
Foreign References:
| CN103769181A | 2014-05-07 | |||
| CN106540729A | 2017-03-29 | |||
| CN103551175A | 2014-02-05 |
Other References:
LI ET AL: "Ionothermal Synthesis of Amorphous Vanadium Phosphate Catalyst in Eutectic Mixture for the Oxidation Reaction", JOURNAL OF MOLECULAR CATALYSIS (CHINA), vol. 28, no. 2, 30 April 2014 (2014-04-30), pages 105 - 111, ISSN: 1001-3555
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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