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发明名称
提高焙烧-氰化浸金工艺中银的回收率的技术方法
摘要
提出了一种提高焙烧-氰化工艺中银回收率的技术方法。该法是在含铜金精矿中加入一定量的SD溶液,于630℃下进行焙烧,采用稀硫酸浸取铜,制得的硫酸浸渣,在pH10的碳酸钠介质中,以氰化法提取Au、Ag。比原技术方法银的回收率可提高30%以上,且本法操作简单,不增加设备,较好地解决了银回收率偏低的难题,具有极好的经济效益和社会效益。
申请公布号
CN1283707A
申请公布日期
2001.02.14
申请号
CN99109986.9
申请日期
1999.07.10
申请人
薛光
发明人
薛光
分类号
C22B11/08;C22B1/06
主分类号
C22B11/08
代理机构
代理人
主权项
1.提出了一种提高焙烧-氰化工艺中银回收率的技术方法。其特征在于在含金精矿中加入一定量的SD溶液,在630℃的高温下进行焙烧。焙烧时产生的SO2可制备硫酸,焙烧渣用稀硫酸浸取铜,制得的硫酸浸渣采用氰化法浸取Au、Ag。
地址
264001山东省烟台市福山路60号
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