Experiment on Floating Sulfur Process of a Pyrite Ore
In order to improve the effective sulfur grade of sulfur concentrate and improve the recov-ery rate of effective sulfur as much as possible,sulfur flotation test is carried out on the basis of the study of raw ore properties in a pyrite concentrator in Anhui.The results show that the grinding fineness is the key factor affecting the effective sulfur recovery rate of sulfur concentrate.Under the conditions of grinding fineness of-0.076 mm50%,the sulfur concentrate with effective sulfur grade of 41.55%and effective sul-fur recovery rate of 93.65%can be obtained by using the closed circuit flotation process of grinding-one roughing one cleaning one scavenging.It not only realizes the effective recovery of sulfur concentrate,but also improves the comprehensive utilization efficiency of resources,which can provide reference for the production of high sulfur ore.
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