氯化物型盐湖低品位钾矿溶浸开采的工艺条件  

Research of Low-grade Potash in Chloride Salt Lake Leaching Mining Process Conditions

作　　者：王晓[1] 姜虹[1] 王爱丽[1] 

机构地区：[1]青海大学化工学院,青海西宁810016

出　　处：《青岛科技大学学报（自然科学版）》2015年第5期534-537,共4页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：国家科技支撑计划项目(2012BAC09B05-4)

摘　　要：低品位钾矿溶浸开采时,存在资源浪费严重和溶浸通道被阻断的问题。采用适当浓度溶剂进行溶浸开采工艺条件的研究,确定最佳工艺条件为:固液质量比1∶0.6;溶剂配比为氯化钠饱和度的80%;氯化镁的质量分数为8%;溶解时间为72h。该条件下KCl的含量大于1.2%,盐矿骨架不坍塌,溶浸通道畅通,符合工艺要求。Leaching mining of low-grade potash,there are two problems：a serious waste of resources and leaching channels are blocked.Appropriate concentration of the solvent leaching mining process conditions were studied to determine the optimum conditions：solid-liquid ratio is 1∶0.6;solvent ratio is 80%sodium chloride saturation and the mass fraction of magnesium chloride is 8%;dissolution time is 72 h.Under these conditions,the content of KCl is greater than 1.2%,salt skeleton does not collapse,and leaching channels unobstructed.All of these meet the technical requirements.

关 键 词：盐矿溶浸 固液质量比 溶剂配比 KCl含量 

分 类 号：TQ115[化学工程—无机化工]