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1. WO2021060334 - ACETOIN PRODUCTION METHOD

Publication Number WO/2021/060334
Publication Date 01.04.2021
International Application No. PCT/JP2020/035929
International Filing Date 24.09.2020
IPC
B01D 61/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
02Reverse osmosis; Hyperfiltration
B01D 61/58 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
58Multistep processes
B01D 71/56 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06Organic material
56Polyamides, e.g. polyester-amides
C07C 45/78 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
45Preparation of compounds having C=O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
78Separation; Purification; Stabilisation; Use of additives
C07C 49/24 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
49Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
20Unsaturated compounds containing keto groups bound to acyclic carbon atoms
24containing hydroxy groups
Applicants
  • 東レ株式会社 TORAY INDUSTRIES, INC. [JP]/[JP]
Inventors
  • 塚本大治郎 TSUKAMOTO, Daijiro
  • 河村健司 KAWAMURA, Kenji
  • 伊藤正照 ITO, Masateru
  • 山田勝成 YAMADA, Katsushige
Priority Data
2019-17640827.09.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) ACETOIN PRODUCTION METHOD
(FR) PROCÉDÉ DE PRODUCTION D'ACÉTOÏNE
(JA) アセトインの製造方法
Abstract
(EN)
In the present invention, high-purity acetoin can be separated and recovered at a low cost, through a step A in which an acetoin-containing solution is filtered through a nanofiltration membrane, and the acetoin-containing solution is recovered from the permeation side of the membrane.
(FR)
Dans la présente invention, de l'acétoïne de haute pureté peut être séparée et récupérée à faible coût, au moyen d'une étape A dans laquelle une solution contenant de l'acétoïne est filtrée à travers une membrane de nanofiltration, et la solution contenant de l'acétoïne est récupérée à partir du côté de perméation de la membrane.
(JA)
アセトイン含有溶液をナノろ過膜に通じて濾過し、透過側からアセトイン含有溶液を回収する工程Aにより、高純度のアセトインを低コストで分離・回収することができる。
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