烷基丙二胺与醚胺组合反浮选石英性能研究

通过N-烷基1,3丙二胺与醚胺组合,得到成本相对较低,浮选泡沫量少的药剂组合。单矿物可浮性试验表明:E1、M1、M3有很好的选择性但药剂用量较大,E2、M2有很好的捕收性,选择性稍差,E3具有较好的选择性和捕收性。通过组合药剂研究,寻找到了组合药剂GE-651C(M1∶E3=7∶3),降低了药剂成本而性能不受影响。实际铁精矿开路浮选表明:GE-651C用量为180 g/t,精矿品位为60.27%,回收率为66.78%。消泡试验表明,GE-651C的泡沫少,性脆易消,有利于泡沫产品的后续处理。

Study on Property of Combination of N-alkyl 1,3-diaminopropane and Ether Amine Used in Reverse Flotation of Quartz

A collector which is cheaper and defoam easily was achieved by combining N-alkyl 1,3-propanediamine with ether amine.Single mineral flotation tests show that E1,M1,M3 have good selectivity,but the dosages are larger;E2,M2 have good collective power,however,their selectivity are poor,E3 has good selectivity and collective power.A combination collector GE-651C(M1∶E3 = 7∶3) with better performance compare to single reagent was found through studies on collectors’ combination,the cost of the collector is lower but the performance is not affected.The flotation tests of nature iron ore reveal: when the dosage of GE-651C is 180 g / t,concentrate grade is 60.27%,recovery is 66.78%.Defoaming tests indicate that GE-651C’s amount of foam is less,it defoam easily,which is good for post-processing.