宜昌磷矿低温捕收剂研究

以高品位胶磷矿为研究对象,采用来源广泛且价格便宜的棉油皂脚工业品作主体药剂,在单泡管中进行了增效剂(阴离子、阳离子和非离子型表面活性剂)的筛选试验。结果表明:阴离子型表面活性剂(SDS、十二烷基磺酸钠、SDBS)的用量增加,胶磷矿的产率增加,具有良好的增效作用;非离子型表面活性剂(磷酸二(2-乙基己基)酯、吡啶)须控制用量,过量则增效作用降低。本研究还进行了验证试验,当pH=8、浮选温度为10～12℃时,SDS只需添加皂脚用量5%,精矿的回收率可提高30.68%,并能降低对温度的敏感程度,为胶磷矿低温捕收剂的进一步应用打下良好的基础。

Low temperature collector for Yichang phosphate rock

Soapstock of cottonseed oil was used as main collector of phosphate rock with high grade in the tests.Screening tests of synergistic agents(anionic surfactant,cationic surfactant,non-ionic surfactant) of the collector were conducted in the Hallimond bubble flotation tube.The results showed that yield of phosphate rock increased with increasing of dosage of anionic surfactants(SDS,sodium lauryl sulfonate,SDBS),so anionic surfactants had good synergistic action.The dosage of non-ionic surfactant(di(2-Ethylhex...