新型捕收剂在赤铁矿反浮选中的应用

通过人工混合矿和实际矿石分选实验探讨了N-十二烷基乙二胺(ND)在赤铁矿反浮选中的应用情况.实验结果表明.ND对赤铁矿和石英质量比为1:1和3:2的人工混合矿均具有一定的分选能力.在矿浆pH值为7.27、淀粉的质量浓度为3.33 mg/L、捕收剂的质量浓度为40 mg/L时,可获得铁的质量分数为60.36%和61.20...

Application of a New Collector in Reverse Flotation of Hematite

Use of N-dodecylethylenediamine(ND) in reverse flotation of hematite was investigated for separation of artificially mixed and actual iron ores.ND effectively separated quartz from hematite when the mass ratio of hematite to quartz was 1∶1 and 3∶2.At pulp pH of 7.27,40 mg/L collector and 3.33 mg/L starch yielded product with 60.36% and 61.20% iron,respectively.In room temperature separation trials with actual ore,product containing 66.72% iron and a 93.46% iron recovery were obtained by subjecting iron ore at 95.42%-0.045 mm granularity in the presence of 200 g/t ND,400 g/t sodium hydroxide,and 200 g/t starch to a coarse sorting,a fine sorting,and two scavenging operations.