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	Synthesis of amino acid ionic liquids from precursor [EMIM]OH via bipolar membrane electrodialysis
	Wang YY(王艳预) ; AxelKö ; nig ; KeilPhilipp ; UrsWelz-Biermann
	2010-09-07
会议名称	2nd asia pacific conference on ionic liquids and green processes
会议日期	2010-9-07
会议地点	中国
页码	258/2
通讯作者	urs welz-biermann
中文摘要	a new environmentally benign process for the production of aqueous solutions of 1,3-dialkylimidazolium hydroxide [emim]oh is presented. electrodialysis (ed) is an electrochemical membrane separation process in which ions are separated or concentrated. commercially available ion exchange membranes (fumatech gmbh, fumasep, fkb, fbm, fab) were integrated into an electrodialysis unit (ed64004, pca) according to a three-cell setup. electrodialysis with bipolar membranes (edbm) was implemented to produce the hydroxide-based precursor in approx. 5% concentration in water from the non-toxic bulk ionic liquid [emim][etoso3]. the concentration of [emim]oh in the product solution was determined by titration with 0.1m hcl solution. using phenolphthalein as indicator. then the precursor [emim]oh was neutralized with equiv. mol amino acids and water is the only byproduct formed during this neutralization reaction and no organic solvents are needed. moreover, several other structurally new ionic liquids can be synthesized by reaction of the aqueous precursor solution with different acids. the whole process — including the simple conversion of oh-based precursors into the final ionic liquids by merely adding an acid of choice — has great potential for the development of novel and especially task-specific ionic liquids. furthermore, the process is not only very flexible with respect to capacity and feed applied, but also applicable for transferring to larger scales.
会议主办者	中国科学院大连化学物理研究所
学科主题	物理化学
语种	中文
内容类型	会议论文
源URL	[http://159.226.238.44/handle/321008/114272]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
推荐引用方式 GB/T 7714	Wang YY,AxelKö,nig,et al. Synthesis of amino acid ionic liquids from precursor [EMIM]OH via bipolar membrane electrodialysis[C]. 见:2nd asia pacific conference on ionic liquids and green processes. 中国. 2010-9-07.

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