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    • 8. 发明申请
    • METHOD AND APPARATUS FOR RECOVERING INDIUM FROM WASTE LIQUID CRYSTAL DISPLAYS
    • 用于从废液晶显示器回收印刷的方法和装置
    • US20100101367A1
    • 2010-04-29
    • US11997884
    • 2006-07-25
    • Toshiaki MurataniTakamichi HonmaTomoharu MaesetoMitsushige Shimada
    • Toshiaki MurataniTakamichi HonmaTomoharu MaesetoMitsushige Shimada
    • C22B58/00C22B1/00C22B3/02
    • C22B7/007C22B3/46C22B7/005C22B25/06C22B58/00Y02P10/228Y02P10/234
    • This invention provides a method and apparatus for recovering In in the form of an alloy or a metal simple substance as a valuable material from waste LCD. In the In recovery method and apparatus, there is no need to recover In as indium hydroxide, and In can be recovered as a valuable metal. Accordingly, unlike the case of indium hydroxide, the recovery does not suffer from poor handling, and In can easily be recovered through a filter or the like with significantly improved In recovery. The In recovery method is characterized by comprising crushing waste LCD containing indium tin oxide, dissolving indium tin oxide from the crushed waste LCD with an acid to give an indium compound-containing solution, allowing the solution to flow into a reactor for recovery and, further, adding particles of a metal having a larger ionization tendency than In into the reactor for recovery, fluidizing the metal particles, precipitating In or an In alloy contained in the indium compound-containing solution onto the surface of the metal particles, then separating the precipitated In or In alloy from the metal particles by separation means, and separating and recovering the separated solid In or In alloy from the liquid component.
    • 本发明提供了一种用于从废液晶显示器中以合金或金属简单物质形式作为有价物质回收In的方法和装置。 在In回收方法和装置中,不需要将铟作为氢氧化铟回收,并且In可以作为有价值的金属回收。 因此,不同于氢氧化铟的情况,回收不会受到不良处理的影响,并且可以通过过滤器等容易地回收,从而显着地提高了In的回收率。 In回收方法的特征在于包括破碎含有氧化铟锡的废液,用粉碎的废液LCD溶解氧化铟锡,得到含铟化合物的溶液,使溶液流入反应器进行回收,并进一步 将具有比In大的离子化倾向的金属颗粒添加到用于回收的反应器中,使金属颗粒流化,将包含在含铟化合物的溶液中的In或In合金沉淀到金属颗粒的表面上,然后分离沉淀 In或In合金从金属颗粒通过分离装置,并从液体组分分离和回收分离的固体In或In合金。