新型捕收剂PA-3用于胶磷矿正浮选的研究

Study on direct flotation of collophanite with a new collector PA-3

以四川德阳某地区胶磷矿为研究对象,采用自主研发的常温正浮选药剂PA-3为捕收剂,Na_2CO_3调整pH值,Na_2SiO_3抑制石英、硅酸盐,1粗(分批加药)1精1扫流程,常温(23~25℃)下获得了精矿P_2O_5品位30.28%、回收率89.27%的优良指标,低温(8~10℃)下亦取得了较好的选别指标。

with the collophanite ore from Deyang, Sichuan as a study object, the concentrate with P2 O5 content of 30. 28% and with recovery of 89. 27% was obtained in a direct flotation process of one roughing （reagent addition in batches） ,one clean- ing and one scavenging at ambient temperature（23-25 ℃） with the self-developed flotation reagent PA-3 to be used at ambient temperature as collector, Na2 CO3 as pH value regulator and Na2SiO3 as suppressant of quartz and silicate. Desirable separa- tion indices also can be obtained when it is used at low tempera- ture （8-10℃）.