| 白钨矿酸性化学选矿浸出液的钨钼萃取研究 |
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| 引用本文： | 李青刚,廖宇龙,张启修,肖连生,田吉英.白钨矿酸性化学选矿浸出液的钨钼萃取研究[J].稀有金属与硬质合金,2011,39(3). |
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| 作者姓名： | 李青刚 廖宇龙 张启修 肖连生 田吉英 |
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| 作者单位： | 中南大学冶金科学与工程学院,湖南长沙,410083 |
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| 摘 要： | 以15％ N235+ 10 ％TBP+75％磺化煤油体系萃取回收白钨矿酸性化学选矿浸出液中的钨钼,该体系对Mo和WO3的萃取饱和容量为90.73 g/L,N235与Mo和WO3的萃合比为0.886.Mo主要以MoO2 Cln(n-2)-阴离子形态被萃,W主要以H2 WO4形态被萃,Fe以络合阴离子形态被萃,P主要以H3 PO4形态被萃.Mo、WO3、Fe、P的单级萃取率分别为76.3％、94.8％、99.1％、7.5％；采用pH=2的HCl溶液洗脱,Fe和P的洗脱率分别为99.6％和77％；采用2 mol/L NaOH溶液反萃,Mo和WO3的单级反萃率即可分别达88.35％和66.52％.
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| 关 键 词： | 萃取 钼 钨 15％ N235+10％ TBP+ 75％磺化煤油 白钨矿 化学选矿浸出液 |
Extraction of Tungsten and Molybdenum from Scheelite Chemical Beneficiation Acidic Leachate |
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| LI Qing-gang,LIAO Yu-long,ZHANG Qi-xiu,XIAO Lian-sheng,TIAN Ji-ying.Extraction of Tungsten and Molybdenum from Scheelite Chemical Beneficiation Acidic Leachate[J].Rare Metals and Cemented Carbides,2011,39(3). |
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| Authors: | LI Qing-gang LIAO Yu-long ZHANG Qi-xiu XIAO Lian-sheng TIAN Ji-ying |
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| Affiliation: | LI Qing-gang,LIAO Yu-long,ZHANG Qi-xiu,XIAO Lian-sheng,TIAN Ji-ying(School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | Tungsten and molybdenum were extracted from scheelite chemical beneficiation acidic leachate with the organic system of 15%N235+10%TBP+75% sulfonated kerosene.The saturated loading capacity for Mo and WO3 of the organic system reaches 90.73 g/L,and the extracted complex ratio between N235 and Mo and WO3 is 0.886.Mo and W are extracted mainly in the form of MoO2Cl(n-2)-n and H2WO4,respectively,Fe in the form of complex anion and P in the form of H3PO4.The single stage extraction rates of Mo,WO3,Fe and P are ... |
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| Keywords: | extraction molybdenum tungsten 15%N235 10%TBP 75% sulfonated kerosene scheelite chemical beneficiation leachate |
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