Comprehensive Recovery Test of a Copper-sulfur Ore in Jiangxi Province
In order to improve the recovery rate of copper sulfur and associated gold and silver and simplify the process,flotation process optimization tests were carried out based on the research of process mineralogy of copper sulfur ore in Jiangxi copper mine.The results show that under the conditions of 28 g/t of collector AP-Ⅱ,65％of ore finness of-0.074 mm,2 400 g/t of lime and 21 g/t of foaming agent,the closed-circuit test of"3 coarse,3 sweep and 4 fine"was carried out.The final index is that the grade of copper,gold and silver in copper concentrate is 20.22％,5.52 g/t and 108.37 g/t,and the recovery rates are 82.70％,18.36％and 42.94％,respectively.The grades of sulfur,gold and silver were 45.86％,2.13 g/t and 12.58 g/t,respectively,and the recoveries were 90.33％,57.08％and 40.16％,respectively.Under the premise of ensuring the copper grade of the concentrate,the copper recovery rate of the copper concentrate is increased by 1.85％,which simplifies the flotation process steps,reduces the pharmaceutical consumption,and obtains a certain grade of gold and silver,ensuring the comprehensive recovery and utilization of the associated gold and silver.
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