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长沙矿冶研究院对浙江龙泉铅锌矿的铜铅混合精矿进行了用腐植酸钠代替重铬酸盐分离铜铅的试验。试验内容包括单用腐植酸钠、腐植酸钠与其它药剂混用、腐植酸钠与腐植酸铵和重铬酸盐法对比
Changsha Mining and Metallurgy Research Institute of Zhejiang Longquan lead-zinc mine copper-lead mixed concentrate with sodium humate instead of dichromate separation of copper and lead test. Tests include single sodium humate, sodium humate mixed with other agents, sodium humate and humic acid ammonium and dichromate contrast