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Mass transfer and selective separation of neodymium ions via a hollow fiber supported liquid membrane using PC88A as extractant

机译:使用PC88A作为萃取剂,通过中空纤维支撑的液膜进行传质和钕离子的选择性分离

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The mass transfer of Nd(III) via hollow fiber supported liquid membrane was studied. At pH 4.5 using 0.5 M 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester as the extractant and 1 M H2SO4 as the stripping solution, optimum extraction and stripping reached 98% and 95%. Mass transfer resistance due to chemical reaction proved to be of the highest value, i.e. 1/K-e = 5.871 x 10(2) s/cm. Thus, this indicated that the mass transfer resistance from the extraction was the most important. Further, the mass transfer model fitted in well with the experiment data. The average deviation in the feed side was below 5%. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译:研究了Nd(III)通过中空纤维负载液膜的传质。在pH 4.5下,使用0.5 M 2-乙基己基膦酸单-2-乙基己酯作为萃取剂,并使用1 M H2SO4作为反萃取溶液,最佳萃取和反萃取分别达到98%和95%。事实证明,由于化学反应引起的传质阻力最高,即1 / K-e = 5.871 x 10(2)s / cm。因此,这表明来自萃取的传质阻力是最重要的。此外,传质模型与实验数据非常吻合。进料侧的平均偏差低于5%。 (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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