Method for recovering indium from indium-iron-copper-zinc material

• Main Authors: PENG YONGYAN, YIN LIANG, LIU ZEYI, MIAO HAIZHI, CHEN YINGHONG
• Format: Patent
• Language: Chinese; English
• Published: 01.08.2023
• Subjects: CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a method for recovering indium from an indium-iron-copper-zinc material, and relates to the technical field of hydrometallurgy. According to the method, after the indium-iron-copper-zinc material is subjected to acid leaching, metal iron is added to reduce ferric ions, the pH value of the obtained solution is adjusted to 2.2-2.4, the indium is effectively separated from impurities such as iron, copper and zinc through a specific extraction agent, then the indium is returned to a water phase through a back-extraction agent, and the aqueous solution rich in indium and very low in impurity content is obtained; the metal indium recycled by the method is high in purity and low in recycling treatment difficulty, and meanwhile, the method is simple in process, low in equipment investment, free of pollution, low in cost and good in economic benefit. 本申请公开了一种从铟铁铜锌物料中回收铟的方法，涉及湿法冶金技术领域。本申请将铟铁铜锌物料酸浸后加入金属铁使三价铁离子还原，调节所得溶液pH值为2.2～2.4并利用特定的萃取剂，使铟与铁、铜、锌等杂质的有效分离，再利用反萃取剂使铟返回水相，即得到富含铟且杂质含量非常低的水溶液，利用其回收制得的