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首页> 外文期刊>Journal of industrial and engineering chemistry >Effect of diluent polarity on membrane stability in the separation of trace Pd(II) from wastewater by HFSLM using LIX84-I
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Effect of diluent polarity on membrane stability in the separation of trace Pd(II) from wastewater by HFSLM using LIX84-I

机译:使用LIX84-I进行HFSLM分离废水中的痕量Pd(II)时,稀释剂极性对膜稳定性的影响

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In a liquid membrane, the type of diluents for the selected extractant plays an important role in membrane stability and separation efficiency. High Pd(II) extraction and stripping of 96% and 91%, respectively, were observed by HFSLM under a feed pH 2, 5% (v/v) LIX84-I dissolved in kerosene and a mixture of 0.8 M NH2CSNH2 with 1 M HCl as a stripping solution. The highest stability was attained at 350 mm by using hexane as a diluent. Finally, the calculated activation energy (E-a) of 30 kJ/mol implied that the separation of Pd(II) was controlled by the diffusion and chemical reaction. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译:在液膜中,所选萃取剂的稀释剂类型在膜稳定性和分离效率中起着重要作用。通过HFSLM在pH 2进料中溶解在煤油中的5%(v / v)LIX84-I和0.8 M NH2CSNH2与1 M的混合物,分别观察到高Pd(II)萃取和溶出度分别为96%和91%。 HCl为汽提溶液。通过使用己烷作为稀释剂,在350 mm处获得最高的稳定性。最后,计算出的30 kJ / mol的活化能(E-a)暗示Pd(II)的分离受扩散和化学反应控制。 (C)2014大韩工业化学工程学会。由Elsevier B.V.发布。保留所有权利。

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