Title:
METHOD FOR PRODUCING GAMMA-BUTYROLACTONE AND METHOD FOR PRODUCING N-METHYLPYRROLIDONE
Document Type and Number:
WIPO Patent Application WO/2021/045153
Kind Code:
A1
Abstract:
Provided is a method for producing gamma-butyrolactone, said method including a reaction step in which a raw material composed of one or both of 2-hydroxytetrahydrofuran and 4-hydroxybutyraldehyde and a catalyst containing copper and an oxide of at least one metal element selected from the group consisting of zinc, zirconium, and aluminum are brought into contact with each other at a reaction temperature higher than 200°C to generate gamma-butyrolactone.
Inventors:
NAMURA YUKI (JP)
TSUKAMOTO SHINYA (JP)
UCHIDA HIROSHI (JP)
TSUKAMOTO SHINYA (JP)
UCHIDA HIROSHI (JP)
Application Number:
PCT/JP2020/033432
Publication Date:
March 11, 2021
Filing Date:
September 03, 2020
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
International Classes:
C07D307/33; B01J23/86; C07B61/00; C07D207/267
Foreign References:
| JPH09505067A | 1997-05-20 | |||
| JPS56166185A | 1981-12-21 | |||
| JPS5545646A | 1980-03-31 | |||
| JP2003512453A | 2003-04-02 | |||
| JP2011507830A | 2011-03-10 | |||
| JP2002371075A | 2002-12-26 | |||
| KR20110058002A | 2011-06-01 | |||
| JPS61246173A | 1986-11-01 |
Attorney, Agent or Firm:
OIKAWA Shu et al. (JP)
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