Title:
ACRYLONITRILE CATALYST, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/177140
Kind Code:
A1
Abstract:
An acrylonitrile catalyst, a preparation method therefor, and application thereof. The acrylonitrile catalyst contains a metal oxide represented by the following general formula: BiaFebNicMgdCeeAfBgChMo12Ox, wherein A is one or more elements selected from a group consisting of lithium, sodium, potassium, rubidium, and cesium; B is one or more elements selected from a group consisting of praseodymium, europium, terbium, and dysprosium; C is one or two elements selected from a group consisting of vanadium and cadmium; each of a, b, c, d, e, f, g, and h represents the number of atoms of the corresponding element; a is 1.2 to 3.0; b is 1.0 to 2.7; c is 3 to 8; d is 0.3 to 1.6; e is 0.4 to 1.8; the contents of f, g, and h are respectively 0.01 to 0.4; x is the number of oxygen atoms required to satisfy the valences of other elements. The catalyst has the following effects: 1) the requirement for high catalyst load of an industrial capacity expansion device can be met; 2) the production amount of carbonyl compound acrolein and acrylic acid is reduced, and the operation period of the device is prolonged.
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| WO/2019/182089 | CATALYST |
Inventors:
WANG LICAI (CN)
Application Number:
PCT/CN2019/077613
Publication Date:
September 10, 2020
Filing Date:
March 11, 2019
Export Citation:
Assignee:
YINGKOU XIANGYANG CATALYST CO LTD (CN)
International Classes:
B01J23/887; B01J35/10; C07C253/26; C07C255/08
Foreign References:
| CN106955717A | 2017-07-18 | |||
| CN109070070A | 2018-12-21 | |||
| CN101147867A | 2008-03-26 | |||
| CN102658167A | 2012-09-12 | |||
| CN1054914A | 1991-10-02 | |||
| CN1285237A | 2001-02-28 | |||
| CN104994945A | 2015-10-21 | |||
| JP4588533B2 | 2010-12-01 |
Attorney, Agent or Firm:
LINDA LIU & PARTNERS (CN)
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