THE COMPETITIVE PERMEATION OF COBALT AND NICKEL WITH SUPPORTED LIQUID MEMBRANES
作者:
RUEY-SHIN JUANG,
JI-FENG LIANG,
期刊:
Chemical Engineering Communications
(Taylor Available online 1993)
卷期:
Volume 126,
issue 1
页码: 13-25
ISSN:0098-6445
年代: 1993
DOI:10.1080/00986449308936207
出版商: Taylor & Francis Group
关键词: Competitive permeation;Supported liquid membrane;Cobalt;Nickel 2-Ethylhexylphosphonic acid mono-2-ethylhexyl ester.
数据来源: Taylor
摘要:
In this paper, the competitive permeation of cobalt and nickel from nitrate solutions through supported liquid membranes was studied, in which contained 2-ethylhexyIphosphonic acid mono-2-cthylhexyl ester (HEHEHP) dissolved in kerosene as a mobile carrier. The permeation rate equations were derived taking into account the aqueous film diffusion of metal ions towards and out of the membrane and the membrane diffusion of HEHEHP and its metal complexes. The mass transfer coefficients of metal ions and metal-HEHEHP complexes were also determined using the permeation cell. It was found that the calculated permeation rates were in good agreement with the measured ones.
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