本文選題：白云鄂博尾礦　切入點(diǎn)：鹽酸浸出　出處：《金屬礦山》2017年05期

【摘要】：白云鄂博選礦廠現(xiàn)弱磁選—強(qiáng)磁選—浮選工藝的弱磁選尾礦再經(jīng)鈣化焙燒—弱磁選選鐵后的尾礦REO含量為12.27%,主要成分為稀土氧化物和螢石,氟磷灰石、石英等少量。對(duì)鹽酸浸出其中稀土氧化物的工藝條件進(jìn)行了研究。結(jié)果顯示,在鹽酸濃度為1.5 mol/L,浸出溫度為45℃,液固比為10∶1 m L/g,浸出時(shí)間為60 min,攪拌速度為300 r/min情況下,稀土浸出率可達(dá)93.15%,氟浸出率僅為0.23%,表明在控制氟浸出的前提下稀土得到了高效浸出。
[Abstract]:The REO content of weak magnetic separation tailings after calcification calcination and weak magnetic separation iron separation in Bayan Obo concentrator is 12.27, mainly composed of rare earth oxides and fluorite, fluoroapatite, quartz and so on.The technological conditions for leaching rare earth oxides from hydrochloric acid were studied.The results show that the leaching temperature is 45 鈩，

本文編號(hào)：1693698