Study on Quality Improvement of Sulphur Concentrate Products of a Copper-Sulphur Mine
In order to improve the quality of sulfur concentrate and meet the sales requirements in a copper-sulfur mine,aiming at the problem of low sulfur grade of sulfur concentrate,the flotation concen-tration,pH value of flotation slurry and activation and conditioning slurry of underground acidic wastewa-ter are tested,and the comparative test of three different upgrading processes is carried out.The test re-sults show that the underground acidic water with pH value of about 2.6 is used to activate the slurry,and the process flow of sulfur concentrate stage separation+concentrate tail return in order is adopted to obtain sulfur concentrate 1 with sulfur grade of 48.57%,iron grade of 43.31%and sulfur recovery rate of 68.78%,sulfur concentrate 2 with sulfur grade of 44.64%,iron grade of 43.01%and sulfur recovery rate of 22.68%.After the combination of the two kinds of sulfur concentrates,a high-quality sulfur concentrate with sulfur grade of 47.53%,iron grade of 43.23%and sulfur recovery rate of 91.46%can be obtained.The sulfur+iron grade is greater than 90.00%,which greatly reduces the cost of high-alkali sulfur concentrate slurry preparation agent on site.At the same time,it solves the discharge problem of environmental protection of underground acidic wastewater,and has remarkable economic and environmental benefits.
NETL
NSTL
万方数据
