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Abstract:
某矿山选铜尾矿经浮选获得的高品位明矾石精矿富含Al、K和Ga等有价金属。为了实现明矾石中有价金属的综合回收,首先采用"焙烧-梯级浸出"工艺选择性浸出Al、K和Ga,再通过冷却结晶与蒸发结晶工艺梯级回收明矾与硫酸铝,最后采用中和法实现Ga富集。结果表明:明矾石精矿经焙烧一段酸浸后,Al、K的浸出率分别为80.31%和87.49%,Ga几乎不浸出;浸出渣经二段酸浸后,Al、Ga和K的浸出率分别为65.67%、86.17%和94.54%。一段酸浸液经冷却结晶后可获得食品级钾明矾纯度达99.65%,结晶后液经蒸发结晶可获得Al_2O_3含量为15.95%的一级硫酸铝产品;利用NaOH控制二段酸浸液的p...
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中国有色金属学报
ISSN: 1004-0609
CN: 43-1238/TG
Year: 2018
Issue: 10
Volume: 28
Page: 2136-2142
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 5
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