Performance evaluation of vanadium (IV) transport through supported ionic liquid membrane

被引:31
作者
Nosrati, S. [1 ]
Jayakumar, N. S. [1 ]
Hashim, M. A. [1 ]
Mukhopadhyay, Soumyadeep [1 ]
机构
[1] Univ Malaya, Dept Chem Engn, Kuala Lumpur 50603, Malaysia
关键词
Vanadium; Supported liquid membrane; TOMAC; BMIM][NTF2; Ionic liquid; Chromium; RESPONSE-SURFACE METHODOLOGY; FACILITATED TRANSPORT; SOLVENT-EXTRACTION; CHROMIUM VI; REMOVAL; CARRIER; RECOVERY; ACID; STABILITY; PHOSPHATE;
D O I
10.1016/j.jtice.2012.12.010
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Increasing use of vanadium in different industries including alloys and steel manufacturing, electrochemical coating and catalysts causes environmental concern about the toxic effluents. In the present research, the extraction of vanadium in supported ionic liquid membrane was studied. The effect of operational conditions on the process performance such as initial feed phase concentration, pH of the feed solution, pore size of the membrane support, type of ionic liquid charged on the support and stripping agent solution was investigated. Vanadium was effectively transported from the feed phase to the stripping phase of ammonia solution using the room temperature ionic liquid, tri-n-octyl methyl ammonium chloride (TOMAC) embedded in the support membrane. Selective transport of vanadium from its mixture with chromium ions was carried out applying TOMAC as carrier. It was also observed that addition of a slight amount of a second room temperature ionic liquid, 1-butyl-3-methylimida-zolium bis[(trifluoromethyl)sulfonyl] imide [BMIM][NTF2], improved the vanadium extraction process considerably. (C) 2013 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:337 / 342
页数:6
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