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Silver extraction from photographic waste using solvent extraction process

Othman, Norasikin and Chiong, Tung and Chan, Kit Hie and Mat , Hanapi (2004) Silver extraction from photographic waste using solvent extraction process. In: 18th Symposium of Malaysian Chemical Engineers (SOMChe) 2004, 13 - 14 Dec. 2004, UTP, Perak, Malaysia.



Photographic waste usually contains metal ions mostly silver, sodium, potassium, and iron. Therefore different types of extractants were examined in this study in term of their capability and selectivity in extracting metals from photographic waste. It was found that, 8-hydroxy chinolin was suitable for extracting ferum selectivity (67%), whilst, 46% of sodium and potassium were extracted using D2EHPA. The silver extraction of Cyanex 302 (0.05M) shows that almost 95% of silver were extracted. The metal loaded Cyanex 302 was stripped by 1M hydrochloric acid and almost 100% of silver were recovered.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Cyanex 302, photographic wastes, silver, solvent extraction
Subjects:T Technology > T Technology (General)
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:5990
Deposited By: Norhani Jusoh
Deposited On:28 Jul 2008 07:47
Last Modified:01 Jun 2010 15:37

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