摘要
矿样取自兰坪某铅锌矿,原矿含铅2.84%,氧化率为91.7%,属难选氧化矿。通过对原矿进行工艺矿物学的研究,探明矿物的嵌布状态及伴生关系。结合工艺矿物学研究,制定探索试验的工艺流程及药剂制度。最终确定磨矿细度为-0.074 mm占94.6%;硫化铅组合捕收剂乙基黄药+丁基铵黑药为60+50 g/t;氧化铅采用硫化后浮选,硫化钠用量为2 kg/t。根据条件试验确定闭路试验的药剂制度,得到最终的选矿指标为:铅精矿品位为23.41%,银的品位为805.76 g/t。
The ore samples are taken from a lead-zinc mine in Lanping, the Pb grade of the run-of-mine ore is 2.84% , the oxidation rate of lead being 91.7% , indicating the ore belongs to difficult to process ones. Through the process mineralogical study of the crude ore, the species of Pb minerals and their association with other minerals are identified. Based on the result of the process mineralogy study, the reagent system for the explorative flotation tests are determined. Finally, under the grinding fineness of 94.6% passing 0. 074 mm, using ethyl xanthate and butylamine as the collectors for lead sulfide flotation with the dosage of 60 g/t and 50 g/t respectively, and the lead oxide mineral floatation after sulfuration with a sodium sulfide dosage of 2 kg/t, the locked-cycle test obtains a lead concentrate with the grade of lead 23.41% , and the grade of silver 805.76 g/t.
出处
《矿冶》
CAS
2014年第6期63-67,共5页
Mining And Metallurgy
基金
国家自然科学基金资助项目(U0837602)
关键词
工艺矿物学
浮选
氧化矿
电子探针
process mineralogy
flotation
oxide ore
electron probe
