大宝山铜硫矿选铜抑制剂的研究与应用
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摘要
药剂可调节矿物的可浮性,在提高气泡矿化过程的选择性和浮选速度等都起着决定性的作用.文章通过研究大宝山矿在优先浮选铜中所用的石灰、硫化钠、硫酸锌3种抑制剂的性质,确定最佳药剂用量,提高了铜精矿指标并降低选矿药剂成本.研究方法为:统计铜选厂一年内的药剂总使用量以及相应时间的铜浮选指标,总结得出药剂使用量范围,再通过现场生产连续取样,进行小型条件实验,最后确定各种抑制剂的最佳使用量.得出的结论有:通过抑制剂单独配制、单独添加方式的改造,可以大幅度降低选铜过程中3种抑制剂的使用量,降低选铜药剂成本;3种抑制剂的最佳使用量分别为:10700g/t、940g/t、600g/t;同样浮选条件下,单种抑制剂的抑制效果不如多种抑制的联合抑制效果.
The reagents can be used to regulate the floatability of minerals and improve the selectivity of air bubble mineralization process and play a decisive role in such aspects as flotation speed,so the study of flotation reagents and correct selection has been attended by people. The purpose of this study is through the research on the selective flotation of copper inhibitors: the preparation and properties of lime,sodium sulfide and zinc sulfates which are mainly used by Dabaoshan Mining to discuss and determine the optimum dosage of reagents,thus to improve the copper concentrate indicators and reduce the cost of mineral preparation. The main research method is the statistics of total reagent usage in a year and the corresponding copper flotation index of a copper mill plant. It concludes the reagent usage range. The optimal reagent usage of various inhibitors is determined through continuous sampling on site,and performing laboratory conditions of small experiments. Through the production data analysis and experimental demonstration,we can conclude that: 1) modification by independent preparation and addition of inhibitors can greatly reduce the use of three inhibitors in the process of copper separation to reduce the cost of copper selection; 2) according to the field data statistics and experiments,the optimal usage of the three inhibitors,namely: 10700 g/t,940 g/t,600 g/t; 3) the inhibition effect of the single inhibitor under the same flotation conditions is not as effective as the combined inhibition effect of various inhibitions.
The reagents can be used to regulate the floatability of minerals and improve the selectivity of air bubble mineralization process and play a decisive role in such aspects as flotation speed,so the study of flotation reagents and correct selection has been attended by people. The purpose of this study is through the research on the selective flotation of copper inhibitors: the preparation and properties of lime,sodium sulfide and zinc sulfates which are mainly used by Dabaoshan Mining to discuss and determine the optimum dosage of reagents,thus to improve the copper concentrate indicators and reduce the cost of mineral preparation. The main research method is the statistics of total reagent usage in a year and the corresponding copper flotation index of a copper mill plant. It concludes the reagent usage range. The optimal reagent usage of various inhibitors is determined through continuous sampling on site,and performing laboratory conditions of small experiments. Through the production data analysis and experimental demonstration,we can conclude that: 1) modification by independent preparation and addition of inhibitors can greatly reduce the use of three inhibitors in the process of copper separation to reduce the cost of copper selection; 2) according to the field data statistics and experiments,the optimal usage of the three inhibitors,namely: 10700 g/t,940 g/t,600 g/t; 3) the inhibition effect of the single inhibitor under the same flotation conditions is not as effective as the combined inhibition effect of various inhibitions.
引文
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[2]王淀佐,胡岳华.浮选溶液化学[M].长沙:湖南科学技术出版社,1988:162-164.
[3]谢贤.难选铁闪锌矿多金属矿石的浮选试验与机理探讨[M]昆明:昆明理工大学出版社,2011:10-14.