CATALYST PRECURSOR, METHOD FOR PRODUCING CATALYST, METHOD FOR PRODUCING METHACRYLIC ACID AND ACRYLIC ACID, AND METHOD FOR PRODUCING METHACRYLIC ACID ESTER AND ACRYLIC ACID ESTER

WIPO Patent Application WO/2019/026640

A1

Provided are a catalyst precursor for producing a catalyst having a high yield of methacrylic acid, a catalyst, and a method for producing methacrylic acid and a methacrylic acid ester. A catalyst precursor including a heteropoly acid salt is used, the catalyst precursor having, in an X-ray diffraction pattern in which an anti-cathode Cu-Kα line is used, a peak P1 in which 2θ is 26.16° ± 0.06° and a peak P2 that is further toward the high-angle side than the peak P1 and is equal to or less than 26.44°. Moreover, a catalyst precursor is prepared in which the ratio (I1/I2) of the height I1 of peak P1 relative to the height I2 of peak P2 is 0.05-0.92. In addition, a catalyst is produced from the catalyst precursor, and methacrylic acid is produced from methacrolein using the catalyst.

JP6922993	A method for producing a catalyst for producing α, β-unsaturated carboxylic acid, a method for producing α, β-unsaturated carboxylic acid, and a method for producing an α, β-unsaturated carboxylic acid ester.
JP2003300975	METHOD FOR PRODUCING 1,3-DIOXANE

FUJITA TSUTOMU (JP)
KOUZAI HIROE (JP)

PCT/JP2018/027205

February 07, 2019

July 20, 2018

Click for automatic bibliography generation  

MITSUBISHI CHEM CORP (JP)

B01J27/199; C07C51/235; C07C57/055; C07C67/08; C07C69/54; C07B61/00

WO2018051840A1

2018-03-22

JP2009022945A	2009-02-05
JPH0615178A	1994-01-25

MIYAZAKI Teruo et al. (JP)

View/Download PDF      PDF Help

Previous Patent: THERMOELECTRIC GENERATION DEVICE

Next Patent: THIN-FILM CAPACITOR AND PRODUCTION METHOD FOR SAME