Method for collection of valuable metal from ito scrap

Details Method for collection of valuable metal from ito scrap Method for collection of valuable metal from ito scrap

C - Chemistry, Metallurgy

25

C

C25C 1/24 (2006.01)

Patent

CA 2666129

Proposed is a method for collecting valuable metal from an ITO scrap including the steps of subjecting the ITO scrap to electrolysis and collecting the result as indium-tin alloy. Additionally provided is a method for collecting valuable metal from an ITO scrap including the steps of providing an ITO electrolytic bath and an indium-tin alloy collecting bath, dissolving the ITO in the electrolytic bath, and thereafter collecting indium-tin alloy in the indium-tin alloy collecting bath. These methods enable the efficient collection of indium-tin alloy from an ITO scrap of an indium-tin oxide (ITO) sputtering target or an ITO scrap such as ITO mill ends arisen during the manufacture of such ITO sputtering target.

L'invention concerne un procédé pour recueillir un métal de valeur à partir de fragments d'oxyde d'indium et d'étain (ITO), caractérisé par la collecte d'un alliage indium-étain par l'électrolyse de fragments d'ITO. L'invention concerne également un procédé pour recueillir un métal de valeur à partir de fragments d'ITO, caractérisé par la fourniture d'un bain d'électrolyse d'ITO et d'un bain de collecte d'alliage indium-étain, la dissolution de l'ITO dans le bain d'électrolyse, et la collecte de l'alliage indium-étain dans le bain de collecte. Il devient possible de proposer un procédé pour recueillir un alliage indium-étain à un rendement élevé à partir d'une cible de pulvérisation cathodique d'ITO ou de fragments d'ITO (par exemple, un déchet d'ITO) produits pendant la production de la cible de pulvérisation cathodique d'ITO.

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