METHOD FOR PRODUCING CATALYST, AND METHOD FOR PRODUCING ACRYLIC ACID

Title:

METHOD FOR PRODUCING CATALYST, AND METHOD FOR PRODUCING ACRYLIC ACID

Document Type and Number:

WIPO Patent Application WO/2021/152916

Kind Code:

A1

Abstract:

Provided is a method for producing a catalyst which is used in a gas-phase contact oxidation reaction for producing an unsaturated carboxylic acid such as an acrylic acid and a methacrylic acid from an unsaturated aldehyde such as acrolein and methacrolein, and which has a high raw material conversion rate as well as product selectivity, and has an excellent yield of an unsaturated carboxylic acid. The method for producing a catalyst for synthesizing an unsaturated carboxylic acid comprises a molding step for molding a powder containing each catalyst component to form a catalyst precursor, wherein in the molding step, a sulfur-containing inorganic compound is added to mold the powder.

Inventors:

ABE YOSHIMUNE (JP)
KANUKA NARIYASU (JP)
OKADA SHIGEKI (JP)
KOUNO SOUHEI (JP)

Application Number:

PCT/JP2020/037422

Publication Date:

August 05, 2021

Filing Date:

October 01, 2020

Export Citation:

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Assignee:

MITSUBISHI CHEM CORP (JP)

International Classes:

B01J37/00; B01J23/887; C07B61/00; C07C51/235; C07C57/055

Foreign References:

JPS5579340A	1980-06-14
JP2016536136A	2016-11-24
JPS54144311A	1979-11-10
JP2011527243A	2011-10-27
JP2013202564A	2013-10-07
JP2020014788A	2020-01-30

Other References: