Title:
METHOD FOR PRODUCING CATALYST FOR VINYL ACETATE PRODUCTION AND METHOD FOR PRODUCING VINYL ACETATE
Document Type and Number:
WIPO Patent Application WO/2024/057789
Kind Code:
A1
Abstract:
A method for producing a catalyst for vinyl acetate production comprising a support, copper, palladium, gold, and an acetic acid salt, the method comprising, in the following order, step 1, in which an alkali solution is infiltrated into the support, step 2, in which the support is brought into contact and impregnated with a solution in which a copper-containing compound, a palladium-containing compound, and a gold-containing compound are contained in excess with respect to desired deposition amounts of the catalyst components, step 3, in which, after the catalyst components have been deposited in the desired deposition amounts, the support is separated from the solution, step 4, in which the support is brought into contact with water or an aqueous solution each having a pH of 7.0-11.5, step 5, in which a reduction treatment is conducted, and step 6, in which the acetic acid salt is deposited on the support.
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Inventors:
KIMURA YOJIRO (JP)
KITAGAWA KAZUHIRO (JP)
UMEHARA KAZUKI (JP)
HOSOGI YASUHIRO (JP)
IWAMA YASUHIRO (JP)
KITAGAWA KAZUHIRO (JP)
UMEHARA KAZUKI (JP)
HOSOGI YASUHIRO (JP)
IWAMA YASUHIRO (JP)
Application Number:
PCT/JP2023/029095
Publication Date:
March 21, 2024
Filing Date:
August 09, 2023
Export Citation:
Assignee:
RESONAC CORP (JP)
International Classes:
B01J31/28; B01J37/02; B01J37/06; B01J37/16; C07B61/00; C07C67/055; C07C69/15
Domestic Patent References:
| WO2022113429A1 | 2022-06-02 |
Foreign References:
| JP2008080326A | 2008-04-10 | |||
| JP2010512985A | 2010-04-30 | |||
| JPH11505765A | 1999-05-25 | |||
| CN103418444A | 2013-12-04 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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