含铟锌渣湿法回收铟工艺进展
Nonferrous Metals Engineering(2021)
Abstract
稀散金属铟独立矿床少,常伴生在锌硫化矿中,湿法或火法炼锌时富集到多种渣中,铟铁酸锌等难浸出物的存在使铟的回收工艺复杂,且回收率低.重点介绍了常规酸浸、加压富氧酸浸、热酸浸出、焙烧预处理—浸出、氯盐浸出和复合场强化铟浸出等锌固废提铟浸出工艺.指出未来辅助使用复合外场或联合多种方法从内部破坏难溶物结构,实现铟铁分离和铟铁酸锌的溶解,革新锌固废提铟工艺,研发新型萃取剂均可成为未来发展方向.
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