Efficient recovery of ionic liquid by electrodialysis in the acid hydrolysis process. Issue 7 (3rd May 2017)

• Record Type: Journal Article
• Authors: Endo, Takatsugu; Tatsumi, Mai; Kuroda, Kosuke; Satria, Heri; Shimada, Yumiko; Ninomiya, Kazuaki; Takahashi, Kenji
• Is Part Of: Separation science and technology. Volume 52:Issue 7(2017)
• Page Start: 1240
• Page End: 1245
• Publication Date: 2017-05-03
• Subjects: Acid hydrolysis -- electrodialysis -- ionic liquids; Separation (Technology) -- Periodicals; 660.284205
• DOI: 10.1080/01496395.2017.1281957
• Languages: English
• ISSNs: 0149-6395

Abstract

ABSTRACT: Electrodialysis (ED) has been recently known as a highly effective technique to remove and recover ionic liquids from aqueous solution. When a conventional electrolyte solution for the ED process containing Na2 SO4 was used, a recovery ratio of an acidic IL, 1-butyl-3-methylimidazolium hydrogen sulfate ([Bmim][HSO4 ]), was 90%. On the other hand, the value clearly increased to 96% when we employed [Bmim][HSO4 ] as the electrolyte solution. In an acid hydrolysis of bagasse using the IL under microwave irradiation, the recovery ratio maintains 96%, irrespective of reaction time. This demonstrates the applicability of the proposed ED system in biomass processing.