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内蒙某难处理铜铅锌多金属矿石选矿技术优化
引用本文:周涛,师伟红,余江鸿.内蒙某难处理铜铅锌多金属矿石选矿技术优化[J].金属矿山,2013,42(5):82.
作者姓名:周涛  师伟红  余江鸿
作者单位:西北矿冶研究院
摘    要:内蒙古某铜铅锌多金属硫化矿石性质复杂,现场难以有效实现铜、铅、锌分离。对铜铅与锌、铜与铅分离的方法进行了研究。结果表明,T-16+硫酸锌组合是实现铜铅与锌高效分离的有效矿浆调整剂,具有抑锌、活化铜铅、消除矿浆泡沫发黏作用;铜铅混合精矿预先浓缩脱水为下一步活性炭继续脱药奠定了基础,是实现铜铅高效分离的前提。用优化后的流程进行了实验室闭路试验,试验指标良好,在此基础上对现场流程进行了改造,生产实践表明:铜、铅、锌分离效果良好,铜精矿、铅精矿指标改善显著,现场铜精矿铜品位从23.15%提高至28.18%、回收率从64.53%提高至79.51%,铅精矿铅品位从44.59%提高至57.07%、回收率从59.61%提高至89.68%。

关 键 词:铜铅混合浮选  铜铅分离  调整剂T-16  浓缩脱水  脱药

Optimization of Beneficiation of a Refractory Cu-Pb-Zn Polymetallic Ore in Inner Mongolia
Zhou Tao , Shi Weihong , Yu Jianghong.Optimization of Beneficiation of a Refractory Cu-Pb-Zn Polymetallic Ore in Inner Mongolia[J].Metal Mine,2013,42(5):82.
Authors:Zhou Tao  Shi Weihong  Yu Jianghong
Institution:Northwest Research Institute of Mining and Metallurgy
Abstract:The nature of a copper-lead-zinc polymetallic sulfide ore in Inner Mongolia is complex,and it is difficult to achieve the effective separation of copper,lead and zinc. Some factors that affecting the separation of copper,lead and zinc are studied. The results show that the combination of T-16 and zinc sulfate is a efficient pulp regulator to highly effective realize the separation of copper,lead and zinc,which owns the role of inhibiting zinc,activating copper and eliminating the sticky pulp foam. The pre-dewatering and thickening of the mixed copper and lead concentrate build the foundation for the next reagent removal with activated carbon,which is the precondition to achieve the efficient separation of copper and lead. Then,the optimized process is applied to the laboratory closed-circuit tests and field production separately,obtain the desired expectation on effective separation of copper,lead and zinc,and significantly the quality of copper concentrate improve and lead concentrate. In on-site production,the Cu grade of copper concentrate is increased from 23.15 % to 28.18%,and its recovery increased from 64.53% to 79.51%. Pb grade of lead concentrate is increased from 44.59% to 57.07%,and its the recovery increased from 59.61% to 89.68%.
Keywords:Cu-Pb mixed flotation  Separation of copper and lead  Regulator T-16  Dewatering and thickening  Reagent removal
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