(貴州大學 材料科學與冶金工程學院，貴陽 550003)
摘 要: 以某低品位菱錳礦為原料，采用廢鹽酸浸出，研究浸出溫度、浸出時間、液固比、反應(yīng)時酸過量系數(shù)對礦石中錳的浸出效果的影響，討論錳浸出的最佳工藝條件。結(jié)果表明：浸出溫度80 ℃、浸出時間60 min、液固比2.5׃1、酸過量系數(shù)1.3為最佳工藝條件。該工藝為低品位錳礦的開發(fā)利用及鈦廠廢鹽酸的綜合利用開辟了一條新途徑。
關(guān)鍵字: 氯化錳；菱錳礦；廢鹽酸；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
