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Title:
METHOD OF PRODUCING AMMOXIDATION CATALYST AND METHOD OF PRODUCING ACRYLONITRILE
Document Type and Number:
WIPO Patent Application WO/2020/039998
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a method of producing an ammoxidation catalyst that exhibits high acrylonitrile yield, and a method of producing acrylonitrile. This method of producing an ammoxidation catalyst involves a step for preparing a catalyst precursor slurry containing a liquid phase and a solid phase, a step for drying the catalyst precursor slurry to obtain dry particles, and a step for firing the dry particles to obtain an ammoxidation catalyst, wherein aggregates containing a metal and a carrier are included in the solid phase of the catalyst precursor slurry, the particle diameter of the metal primary particles constituting the aggregates is less than or equal to 1 μm, and the average particle diameter of the metal primary particles is 40-200 nm.

Inventors:
MORIYA KOHEI (JP)
FUKUZAWA AKIYOSHI (JP)
Application Number:
PCT/JP2019/031835
Publication Date:
February 27, 2020
Filing Date:
August 13, 2019
Export Citation:
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Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
B01J37/04; B01J23/887; B01J37/08; C07C253/26; C07C255/08; C07B61/00
Foreign References:
JP2015188801A2015-11-02
JP2010172851A2010-08-12
JP2010240593A2010-10-28
JP2012501839A2012-01-26
JP2013527141A2013-06-27
JP2004105951A2004-04-08
JPS5919870B21984-05-09
JP4954750B22012-06-20
JPS4823950B11973-07-17
JP4425743B22010-03-03
JP5378041B22013-12-25
JP2018156514A2018-10-04
Other References:
See also references of EP 3842144A4
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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