Using Cyanex 923 for selective extraction in a high concentration chloride medium on nickel metal hydride battery waste
Using Cyanex 923 for selective extraction in a high concentration chloride medium on nickel metal hydride battery waste
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DOI：
10.1016/j.hydromet.2012.08.011
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发表时间：
2012-11-01
期刊：
影响因子：
4.7
通讯作者：
Odegaard-Jensen, Arvid
中科院分区：
文献类型：
--
作者：
Larsson, Kristian;Ekberg, Christian;Odegaard-Jensen, Arvid
采用液-液萃取法研究了溶剂化萃取剂三烷基氧化膦混合物Cyanex 923对溶于8 M盐酸的镍氢电池浸出液的萃取性能。开发了从单个电极材料和混合材料中分离浸出液的路线。本研究中使用的电池含有13种金属，开发的分离方案将它们分离为多达4种组分。在每种情况下，主要馏分含有镍，如果存在于进料中，还含有钾和镁。将部分镍萃余液回流至溶解步骤以减少待萃取至有机相中的金属量。硝酸盐反萃取步骤将钴和锰与镧系元素含量分离，因为镧系元素硝酸盐络合物被萃取。(C)2012爱思唯尔有限公司版权所有。
The extraction properties of the solvating extractant trialkylphosphine oxide mixture Cyanex 923 have been investigated using liquid-liquid extraction methods on leach liquors from nickel metal hydride batteries dissolved in 8 M hydrochloric acid. Separation routes for leach liquors from individual electrode materials and a mixed material were developed. The batteries used in this study contained thirteen metals and the developed separation schemes separate them in up to four fractions. The main fraction in each case contains nickel, also potassium and magnesium if present in the feed. Part of the nickel raffinate is refluxed to the dissolution step in order to reduce the amount of metals to be extracted into the organic phase. A nitrate strip step separates the cobalt and manganese from the lanthanoid content, since lanthanoid nitrate complexes are extracted. (C) 2012 Elsevier B.V. All rights reserved.