TY - JOUR
T1 - Selective recovery of palladium from a simulated industrial waste water by liquid surfactant membrane process
AU - Kakoi, Takahiko
AU - Horinouchi, Naoki
AU - Goto, Masahiro
AU - Nakashio, Fumiyuki
N1 - Funding Information:
This work was partly supported by the research foundation from Nittetu Chemical Engineering Ltd. and NISSAN foundation. The authors are grateful to Daihachi Chemical Industry Co. Ltd. for the supply of MSP-8.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1996/9/4
Y1 - 1996/9/4
N2 - The selective recovery of palladium from an acidic solution of high iron concentration with liquid surfactant membranes (LSMs) containing di-2-ethylhexyl monothiophosphoric acid (commercial name MSP-8) as a carrier has been conducted in a batch and a continuous system using a mixer-settler. In the batch operation, the effects of several chemical species and their concentrations on the recovery of palladium were discussed. Using a relatively low concentration of PX100, stable emulsions were obtained and a high degree of palladium recovery was performed by a LSM technique. The concentration of thiourea employed as a stripping agent greatly affected the efficiency of palladium recovery. Under optimum conditions, palladium ions were separated from a large amount of iron ions and they were concentrated from the external feed aqueous solution into the inner receiving phase of W/O emulsions. Furthermore, an effective recovery of palladium could be achieved in a continuous operation using a mixer-settler under the optimum conditions for the batch system.
AB - The selective recovery of palladium from an acidic solution of high iron concentration with liquid surfactant membranes (LSMs) containing di-2-ethylhexyl monothiophosphoric acid (commercial name MSP-8) as a carrier has been conducted in a batch and a continuous system using a mixer-settler. In the batch operation, the effects of several chemical species and their concentrations on the recovery of palladium were discussed. Using a relatively low concentration of PX100, stable emulsions were obtained and a high degree of palladium recovery was performed by a LSM technique. The concentration of thiourea employed as a stripping agent greatly affected the efficiency of palladium recovery. Under optimum conditions, palladium ions were separated from a large amount of iron ions and they were concentrated from the external feed aqueous solution into the inner receiving phase of W/O emulsions. Furthermore, an effective recovery of palladium could be achieved in a continuous operation using a mixer-settler under the optimum conditions for the batch system.
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U2 - 10.1016/0376-7388(96)00102-0
DO - 10.1016/0376-7388(96)00102-0
M3 - Article
AN - SCOPUS:0030568723
SN - 0376-7388
VL - 118
SP - 63
EP - 71
JO - Journal of Membrane Science
JF - Journal of Membrane Science
IS - 1
ER -