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Metals 2015, 5(4), 2034-2047; doi:10.3390/met5042034

Copper and Cyanide Extraction with Emulsion Liquid Membrane with LIX 7950 as the Mobile Carrier: Part 1, Emulsion Stability

1
School of Material and Metallurgical Engineering, Northeaestern University, 3-11 Wenhua Road, Shenyang 110819, China
2
Department of Materials Engineering, University of British Columbia, 309-6350 Stores Road, Vancouver, BC V6T 1Z4, Canada
*
Author to whom correspondence should be addressed.
Academic Editors: Suresh Bhargava, Mark Pownceby and Rahul Ram
Received: 19 August 2015 / Accepted: 14 October 2015 / Published: 4 November 2015
(This article belongs to the Special Issue Hydrometallurgy)
View Full-Text   |   Download PDF [474 KB, uploaded 4 November 2015]   |  

Abstract

The potential use of emulsion liquid membranes (ELMs) with LIX 7950 as the mobile carrier to remove heavy metals from waste cyanide solutions has been proposed. Relatively stable ELMs with reasonable leakage and swelling can be formed under suitable mixing time and speed during emulsification. The concentration of LIX 7950 and Span 80 in the membrane phase, KOH in the internal phase and the volume ratio of membrane to internal phases are also critical to ELM formation. The efficiency of copper and cyanide removal from dilute cyanide solution by ELMs is related to ELM stability to some extent. More than 90% copper and cyanide can be removed from dilute cyanide solutions by ELMs formed under suitable experimental conditions. View Full-Text
Keywords: emulsion liquid membrane; LIX 7950; stability; copper cyanides emulsion liquid membrane; LIX 7950; stability; copper cyanides
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Lu, D.; Chang, Y.; Wang, W.; Xie, F.; Asselin, E.; Dreisinger, D. Copper and Cyanide Extraction with Emulsion Liquid Membrane with LIX 7950 as the Mobile Carrier: Part 1, Emulsion Stability. Metals 2015, 5, 2034-2047.

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