METHOD FOR RECOVERING IONIC LIQUID

WIPO Patent Application WO/2023/176945

A1

The present invention provides a method for easily and efficiently recovering an ionic liquid from a liquid mixture that contains the ionic liquid and an organic acid.　This method for recovering an ionic liquid is characterized by subjecting a liquid mixture (A) that contains an ionic liquid, an organic acid and a solvent (excluding an organic acid) to distillation.

WADA NAOKI (JP)
TAKAHASHI KENJI (JP)
OKUBO YUTO (JP)
WATANABE SUSUMU (JP)
WATANABE HITOSHI (JP)
ARAI TAKASHI (JP)

PCT/JP2023/010486

September 21, 2023

March 16, 2023

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UNIV NAT CORP KANAZAWA (JP)
DAICEL CORP (JP)

C07D233/58; C08B3/06; C08B3/22

JP2011530643A

2011-12-22

JOGUNOLA OLATUNDE; ETA VALERIE; HEDENSTROM MATTIAS; SUNDMAN OLA; SALMI TAPIO; MIKKOLA JYRI-PEKKA: "Ionic liquid mediated technology for synthesis of cellulose acetates using different co-solvents", CARBOHYDRATE POLYMERS, APPLIED SCIENCE PUBLISHERS , LTD BARKING, GB, vol. 135, 2 September 2015 (2015-09-02), GB , pages 341 - 348, XP029291415, ISSN: 0144-8617, DOI: 10.1016/j.carbpol.2015.08.092
SHI JIN-ZHI, STEIN JÜRGEN, KABASCI STEPHAN, PANG HAO: "Purification of EMIMOAc Used in the Acetylation of Lignocellulose", JOURNAL OF CHEMICAL AND ENGINEERING DATA., AMERICAN CHEMICAL SOCIETY., US, vol. 58, no. 2, 14 February 2013 (2013-02-14), US , pages 197 - 202, XP093092607, ISSN: 0021-9568, DOI: 10.1021/je300330t

G-CHEMICAL INTELLECTUAL PROPERTY FIRM (JP)

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