Reaction dependent extraction of copper and nickel using hollow fibers

Chuanfang Yang, E. L. Cussler

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64 Scopus citations


The competitive extraction of copper and nickel with kerosene solutions of HDEHP [di-(2-ethylhexyl) phosphoric acid] has been studied in a hollow fiber membrane module. The data showed that the reaction changes from first order to second order as the extraction proceeds. The first-order behavior largely results from mass transfer resistances in the membrane and in the aqueous boundary layer. The second-order reaction, occurring in dilute solution, is a consequence of an interfacial reaction. The results have implications for other metals. Copyright (C) 2000 Elsevier Science B.V.

Original languageEnglish (US)
Pages (from-to)229-238
Number of pages10
JournalJournal of Membrane Science
Issue number2
StatePublished - Mar 1 2000

Bibliographical note

Funding Information:
This work was partially supported by the Department of Defense (grant DAA H04-95-1-0094) and by the National Science Foundation (grants CTS 96-27361 and CTS 94-8755). C.F. Yang expresses his special thanks to the Li Foundation for support.


  • Facilitated transport
  • Hollow fibers
  • Microporous membranes
  • Solvent extraction


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