对氰化尾渣的焙烧预处理及其对有价金属综合回收的影响进行了研究.结果表明:当焙烧温度为750℃、焙烧时间为1.25h、还原剂添加量为6％时,铁的磁化率为86.27％,金的浸出率达到46.14％.结合矿物构造与赤铁矿磁化焙烧原理,探讨了焙烧对金浸出影响的机理,认为赤铁矿磁化焙烧后解离出的包裹金,是提高金浸出率的主要来源.
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