黑龙江省某矿铜钼分选工艺优化的实验研究
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摘要
为提高黑龙江某矿Cu、Mo的精矿品位和回收率,基于现有工艺流程,开展磨矿细度和分选药剂条件实验,确定Mo精选再磨细度及分选药剂方案,优化分选工艺。优化工艺流程中,Mo精选再磨Ⅱ阶段磨矿细度调整为-0.038 mm粒级占85%;黄铜矿抑制剂选用BK510+P-Nokes组合药剂,用量分别为10和60 g/t;黄铜矿捕收剂选用Z-200,用量为0.6 g/t。现场验证实验结果表明:Mo精矿品位为52.28%,回收率为90.12%,回收率提高了2.94%;Cu精矿品位为21.78%,回收率为52.78%,回收率提高了17.50%。该结果与闭路实验结果相近,验证了优化工艺的分选效果。
This paper seeks to improve the concentrate grade and recovery rate of Cu-Mo sulfide ore in Heilongjiang province. The research involves using the existing production process to perform experiments on grinding fineness and sorting chemicals condition; and determining grinding size in regrinding of molybdenum concentrate and optimizing separation process. Optimizing the process involves adjusting Mo regrinding II stage grinding fineness to-0. 038 mm particle size,accounting for 85%; employing BK510 +P-Nokes combination agent as chalcopyrite inhibitor,with the dosage of 10 and 60 g/t respectively; and selecting Z-200 as chalcopyrite collector,with the dosage of 0. 6 g/t. Field verification experiments demonstrate that the optimized process could enable the molybdenum concentrate grade of 52. 28%; the recovery rate of 90. 12%,a 2. 94% increase; copper concentrate grade of 21. 78%; and the recovery rate of 52. 78%,a 17. 50% increase. The results from the model are close to the experimental results,verifying the separation efficiency of the optimized process.
This paper seeks to improve the concentrate grade and recovery rate of Cu-Mo sulfide ore in Heilongjiang province. The research involves using the existing production process to perform experiments on grinding fineness and sorting chemicals condition; and determining grinding size in regrinding of molybdenum concentrate and optimizing separation process. Optimizing the process involves adjusting Mo regrinding II stage grinding fineness to-0. 038 mm particle size,accounting for 85%; employing BK510 +P-Nokes combination agent as chalcopyrite inhibitor,with the dosage of 10 and 60 g/t respectively; and selecting Z-200 as chalcopyrite collector,with the dosage of 0. 6 g/t. Field verification experiments demonstrate that the optimized process could enable the molybdenum concentrate grade of 52. 28%; the recovery rate of 90. 12%,a 2. 94% increase; copper concentrate grade of 21. 78%; and the recovery rate of 52. 78%,a 17. 50% increase. The results from the model are close to the experimental results,verifying the separation efficiency of the optimized process.
引文
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[5]符剑刚,钟宏,欧乐明.巯基乙酸在铜钼分离中的应用[J].矿产保护与利用,2002,22(4):38-41.
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[7]缑明亮,武俊杰,崔长征,等.辉钼矿选矿药剂及选矿工艺研究[J].有色金属(选矿部分),2013(3):74-77.
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