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云南大理某含金多金属氧化矿石工艺矿物学及分选试验研究
- 作者：
- 祁磊|高文元|殷燕林|杨啸清|庄世明|和少龙|崔毅琦
- 作者单位：
- 昆明理工大学国土资源工程学院&鹤庆北衙矿业有限公司|鹤庆北衙矿业有限公司|鹤庆北衙矿业有限公司|鹤庆北衙矿业有限公司|鹤庆北衙矿业有限公司|鹤庆北衙矿业有限公司|昆明理工大学国土资源工程学院
基金项目：
- isnull
详细信息：
- 作者简介：
- 祁磊（1990—），男，河北沧州人，工程师，从事黄金矿山多金属综合回收利用技术研究工作；云南省大理白族自治州鹤庆县西邑镇北衙村，鹤庆北衙矿业有限公司，671507；E-mail:1028028876@qq.com
- 通讯作者：
- E-mail:cuiyq111@126.com，15287126700
- PDF下载
Process mineralogy and separation test of gold-bearing polymetallic oxide ore in Dali,Yunnan
- English Author：
- Faculty of Land Resource Engineering,Kunming University of Science and Technology&Heqing Beiya Mining Co.,Ltd.|Heqing Beiya Mining Co.,Ltd.|Heqing Beiya Mining Co.,Ltd.|Heqing Beiya Mining Co.,Ltd.|Heqing Beiya Mining Co.,Ltd.|Heqing Beiya Mining Co.,Ltd.|Faculty of Land Resource Engineering,Kunming University of Science and Technology
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
为综合回收云南大理某含金多金属氧化矿石，对其进行工艺矿物学及分选试验研究。结果表明：矿石中金、银、铁的品位分别为1.99 g/t、47.60 g/t和32.98 %，是主要有价金属；其中，约87 %的金以含银自然金和银金矿独立矿物的形式赋存于褐铁矿中，少量以载体金的形式嵌布于磁铁矿-磁赤铁矿中；约90 %的银赋存于硬锰矿和褐铁矿中。采用先弱磁选后强磁选的工艺综合回收有价金属，弱磁选获得了铁品位为61.67 %、铁回收率为16.45 %的磁铁精矿，强磁选获得了铁品位为42.46 %、铁回收率为66.56 %的褐铁精矿，金、银回收率分别达到了60.50 %和65.84 %，金、银、铁均得到了有效的分离富集。
关键词:
多金属矿；磁选；氧化矿；金；综合回收
Abstract:
In order to comprehensively recover a gold-bearing polymetallic oxide ore in Dali,Yunnan,the process mineralogy and separation test were carried out.The result shows that the grades of gold,silver and iron in the ore are 1.99 g/t,47.60 g/t and 32.98 % respectively,which are the main valuable metals.Among them,about 87 % of gold occurs in limonite in the form of silver-bearing native gold and independent minerals of electrum,a small amount of gold is embedded in magnetite-maghemite in the form of carrier gold;and about 90 % of silver occurs in psilomelane and limonite.The valuable metals were comprehensively recovered by low intensity magnetic separation followed by high intensity magnetic separation.The low intensity magnetic separation obtains the magnetite concentrate with the iron grade 61.67 % and the iron recovery 16.45 %.The limonite concentrate with iron grade of 42.46 % and recovery rate of 66.56 % can be obtained by high intensity magnetic separation,and the recovery rates of gold and silver are 60.50 % and 65.84 % respectively.The gold,silver and iron are effectively separated and enriched by this process.
Keywords:
polymetallic ore;magnetic separation;oxide ore;gold;comprehensive recovery