Recovery of rare metal indium (In) from discarded LCD monitors

Choubey, Pankaj K and Jha, Manis K and Gupta, Divika and Jeong, Jinki and Lee, Jae-chun (2014) Recovery of rare metal indium (In) from discarded LCD monitors. In: EPD Congress-2014, 16/02/2014 To 20/02/2014, San Diego Convention Center, San Diego, California. USA..

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Rare metal indium (In) is mostly used as electroluminescent material in liquid crystal displays (LCD) monitors. Present paper describes leaching studies for the recovery of In from waste LCD monitors in presence of different other impurities. The leaching studies showed that more than 85% of In was leached out using 20% sulfuric acid at 60oC in mixing time 30 min at fixed pulp density 25 g/L. The solution could be purified using SX/IX and from the pure solution metal/ salt could be produced by evaporation, precipitation, electrolysis, crystallization processes.

Item Type:Conference or Workshop Item (Lecture)
Official URL/DOI:
Uncontrolled Keywords:E-waste, LCD Monitor, Dismantling, Leaching, Indium
Divisions:Metal Extraction and Forming
ID Code:6851
Deposited On:03 Mar 2014 14:46
Last Modified:03 Mar 2014 14:46
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