The sulfur content of a high-sulfur iron concentrate powder in Liaoyang is 3.51%,and the-38 μm accounts for 61.60%.Iron mainly occurs in magnetite and sulfide.The distribution rate of iron in magnetite is 88.02%,and the distribution rate of iron in sulfide ore(mainly pyrrhotite)is 10.58%.In order to reduce the sulfur content of iron concentrate,a semi-industrial test of sulfur reduction is carried out.The re-sults show that under the condition of feeding concentration of 43%,with sulfuric acid as activator and iso-amyl xanthate+ammonium dibutyl dithiophosphate(mass ratio of 4∶1)as collector,iron concentrate with iron grade of 67.06%and sulfur content of 0.35%can be obtained by flotation column through one roughing,one cleaning and one scavenging reverse flotation process.
关键词
铁精粉脱硫/半工业试验/浮选柱
Key words
iron powder desulfurization/semi-industrial test/flotation column
维普
万方数据