新型捕收剂MG-2反浮选司家营铁矿的研究

Research on Reverse Flotation of Sijiaying Iron Ore Using New Collector MG-2

以司家营铁矿为研究对象,通过正交试验确定药剂制度,在此基础上进行药剂比较试验、开路试验、闭路试验;试验表明,MG-2是司家营铁矿的良好捕收剂。与现场原采用的脂肪酸相比,在铁精矿产率相当的前提下,精矿品位、回收率分别提高1.5%、3%,尾矿品位降低3%,且药剂用量减少30%左右。现场试验室小试与工业试验结果表明:以MG-2为捕收剂,可以在满足司家营矿业公司对浮选精矿质量(>65%)要求的前提下,显著降低浮选药剂用量,解决了司家营铁矿浮选药剂用量大、成本高的问题。

Using Sijiaying iron ore as flotation feeding, the reagents system was decided based on the orthogonal test. And a serial of tests such as reagent comparison test, open test and closed - circuit test were conducted. The results showed that MG -2 was a good collector for Sijiaying iron ore. Compared with the original fatty acids, under the considerable yield of concentrate, the grade of concentrate and recovery were increased 1.5% and 3% respectively, the grade of tailings was reduced 3% with the reduction of about 30% reagent dosage. The results of laboratory test and in- dustrial test showed that using MG -2 for the collector can significantly reduce the flotation reagent dosage under the condition of meeting on the flotation concentrate quality （ 〉 65% ） for Sijiaying Mining Company. Thus, the problems of large amount of flotation reagent Sijiaying iron ore were solved. dosage and high costs for