New surfactants for metal extraction by liquid surfactant membranes

F. Nakashio, M. Goto, K. Kondo

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

New amphoteric surfactants which possess an acceleration effect and give a stable emulsion were prepared for metal extraction by liquid surfactant membranes (henceforth LSM). Copper extraction by LSM using the amphoteric surfactants was carried out in a stirred tank and the W/O emulsion was demulsified by a continuous electrical coalescer. The amphoteric surfactants formed a stable emulsion at low concentration which is about one-tenth the corresponding concentration of Span 80 or Polyamine. By using the amphoteric surfactants, the extraction rate was increased about ten times as compared with the nonionic and cationic surfactants. The acceleration effect is considered to be caused by an electrostatic interaction between copper ion and hydrophilic phosphoric-group of the amphoteric surfactants. The increase of the extraction rate leads to shortening the operation time in the LSM process. Furthermore, the emulsion made of the amphoteric surfactant could be efficiently demulsified by an electrical coalescer.

Original languageEnglish
Title of host publicationProcess Metallurgy
Pages1459-1468
Number of pages10
DOIs
Publication statusPublished - Jan 1 1992

Publication series

NameProcess Metallurgy
Volume7
ISSN (Print)1572-4409

Fingerprint

Amphoteric surfactants
surfactant
Surface active agents
membrane
Membranes
liquid
Emulsions
metal
Liquids
emulsion
Metals
Copper
Cationic surfactants
Nonionic surfactants
copper
Coulomb interactions
Ions

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Industrial and Manufacturing Engineering

Cite this

Nakashio, F., Goto, M., & Kondo, K. (1992). New surfactants for metal extraction by liquid surfactant membranes. In Process Metallurgy (pp. 1459-1468). (Process Metallurgy; Vol. 7). https://doi.org/10.1016/B978-0-444-88677-4.50060-X

New surfactants for metal extraction by liquid surfactant membranes. / Nakashio, F.; Goto, M.; Kondo, K.

Process Metallurgy. 1992. p. 1459-1468 (Process Metallurgy; Vol. 7).

Research output: Chapter in Book/Report/Conference proceedingChapter

Nakashio, F, Goto, M & Kondo, K 1992, New surfactants for metal extraction by liquid surfactant membranes. in Process Metallurgy. Process Metallurgy, vol. 7, pp. 1459-1468. https://doi.org/10.1016/B978-0-444-88677-4.50060-X
Nakashio F, Goto M, Kondo K. New surfactants for metal extraction by liquid surfactant membranes. In Process Metallurgy. 1992. p. 1459-1468. (Process Metallurgy). https://doi.org/10.1016/B978-0-444-88677-4.50060-X
Nakashio, F. ; Goto, M. ; Kondo, K. / New surfactants for metal extraction by liquid surfactant membranes. Process Metallurgy. 1992. pp. 1459-1468 (Process Metallurgy).
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