METHOD OF SELECTIVE RECOVERY OF VALUABLE METALS FROM MIXED METAL OXIDES
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United States of America Patent
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Issued Date -
Aug 20, 2015
app pub date -
Jan 20, 2015
filing date -
Feb 18, 2014
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Abandoned
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Abstract
The present invention relates to a process for recovering metals from indium tin oxide (ITO) scrap. It allows the selective recovery of indium and tin from waste ITO by means of a simple and environmentally benign dissolution-deposition method, with no requirement of using strong corrosive acid/alkaline chemicals (e.g. hydrochloric acid, nitric acid, sulfuric acid and sodium hydroxide) for dissolution and complicated procedures/operation. The dissolution baths can be reused without observable recovery deterioration. It significantly reduces the cost requirement in the recovery process.
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