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Gold Science and Technology ›› 2017, Vol. 25 ›› Issue (6): 68-74.doi: 10.11872/j.issn.1005-2518.2017.06.068

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Optimization and Practice on Floataion Reagent Dosing Point and Dosage in a Gold Mine of Qinghai Province

REN Qi 1，2，3，ZHANG Guocun 1，2，3，WANG Guangwei 2，3   

  1. 1.Qinghai 6th Institute of Geology and Mineral Exploration，Golmud    816000，Qinghai，China；
    2.Dulan Jinhui Mining Co.，Ltd.，Golmud    816000，Qinghai，China；
    3.Qinghai Engineering Research Center for Gold Mineral Resource Development，Dulan    816100，Qinghai，China
  • Received:2016-11-04 Revised:2017-07-28 Online:2017-12-30 Published:2018-05-18

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Abstract:

 In order to solve the problem of high dosage，unreasonable action time and low flotation recovery rate of a gold mine dressing plant in Qinghai Province，on the basis of the original flotation process，the experiment was carried out on the optimization of the flotation reagent dosing point and dosage.The results showed that by means of the optimization test of the sodium carbonate，copper sulfate regulator and ammonium dibutyl dithiophosphate collector dosing point，the sodium carbonate dosing point was removed from grading pump pool to agitation tank，copper sulphate and ammonium dibutyl dithiophosphate was removed from agitation tank to grading pump pool，the degree of mineralization was good，foam was seed，foam layer became stability.By means of the optimization of flotation reagent dosage test，the sodium carbonate，copper sulphate and ammonium dibutyl dithiophosphate consumption reduced 1.0，0.05 and 0.035 kg/t respectively.Process parameters were improved，the concentrate yield and recovery rate increased by 0.31% and 3.53% respectively.Compared with the original flotation reagent dosing points and dosages，the floating indexs were improved greatly and the flotation regent consumptions are significantly reduced.  

Key words: gold ore, flotation, dosing point, reagent dosage, process optimization, consumption reduction, effi-ciency increasing

CLC Number: 

  • TD313

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