Beneficiation Process Test of a Gold-bearing Magnetite Ore in Qinghai
In order to efficiently develop and utilize a gold-bearing magnetite ore in Qinghai,based on the analysis of ore process mineralogy,the beneficiation process test is carried out.The test results show that under the conditions of grinding fineness of-0.074 mm 80.00%,activator H2SO4 dosage of 2 000 g/t and collector A6 dosage of 120+40 g/t,the closed circuit process of one roughing,two cleaning and one scavenging flotation is adopted.Finally,gold concentrate with gold grade of 30.06 g/t and gold recovery of 88.34%and iron rough concentrate with iron grade of 56.28%,sulfur content of 4.69%,iron recovery of 73.47%and sulfur recovery of 57.10%are obtained.The iron,gold and sulfur in the ore are comprehensive-ly recovered,which can provide technical basis for the development and utilization of the ore.
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