(贵州大学 材料科学与冶金工程学院，贵阳 550003)
摘 要: 以某低品位菱锰矿为原料，采用废盐酸浸出，研究浸出温度、浸出时间、液固比、反应时酸过量系数对矿石中锰的浸出效果的影响，讨论锰浸出的最佳工艺条件。结果表明：浸出温度80 ℃、浸出时间60 min、液固比2.5׃1、酸过量系数1.3为最佳工艺条件。该工艺为低品位锰矿的开发利用及钛厂废盐酸的综合利用开辟了一条新途径。
关键字: 氯化锰；菱锰矿；废盐酸；浸出
waste hydrochloric acid leached rhodochrosite
（College of Materials Science and Metallurgical Engineering, Guizhou University, Guiyang 550003, China）
Abstract:The preparation process of manganese chloride tetrahydrate by waste hydrochloric acid leaching of rhodochrosite was presented, based on the experimental investigations on the waste hydrochloric acid leached rhodochrosite. Various factors on the manganese leaching rate in the leaching were discussed. The optimum leaching conditions are obtained. The process for utilization of low-grade rhodochrosite and utilization of waste hydrochloric acid has opened up a new way.
Key words: manganese chloride; rhodochrosite; waste hydrochloric acid; leaching
