| 硝酸铅活化黑钨矿浮选的研究 |
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| 引用本文： | 陈万雄,叶志平.硝酸铅活化黑钨矿浮选的研究[J].广东有色金属学报,1999(1). |
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| 作者姓名： | 陈万雄 叶志平 |
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| 作者单位： | 中南工业大学(陈万雄)，广州有色金属研究院(叶志平) |
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| 摘 要： | 硝酸铅对黑钨矿浮选有显著的活化作用，采用硝酸铅作活化剂对含ＷＯ３１．６２％的柿竹园黑钨细泥进行浮选试验，获得黑钨精矿含ＷＯ３６６．０４％，回收率９０．３６％．本文从浮选溶液化学角度，对硝酸铅水解后的各成分进行分析计算表明，在ｐＨ小于９．５时，Ｐｂ２＋和Ｐｂ（ＯＨ）＋是起活化作用的主要成分．硝酸铅可使黑钨矿表面的ζ电位由负变正，铅离子在黑钨矿表面的特性吸附促进了捕收剂的作用
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| 关 键 词： | 黑钨矿，浮选，硝酸铅，活化 |
STUDY ON\=WOLFRAMITE FLOTATION ACTIVATED BY LEAD NITRATE |
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| CHEN,Wanxiong.STUDY ON\=WOLFRAMITE FLOTATION ACTIVATED BY LEAD NITRATE[J].Journal of Guangdong Non-Ferrous Metals,1999(1). |
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| Authors: | CHEN Wanxiong |
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| Affiliation: | CHEN
Wanxiong(Central South University of Technology)\=YE Zhiping(Guangzhou Research Institute
of Non\|Ferrous Metals) |
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| Abstract: | Lead nitrate imposes obvious activation effect on wolframite
flotation. When lead nitrate was applied as activator to conduct flotation test for wolframite
slime in Shizhuyuan Mill (the content of WO\-3 is 1\^62%), the wolframite concentrate containing
WO\-3 66\^04% can be obtained with the recovery of 90\^36%. Viewing from the angle of flotation
solution chemistry and calculating all components after the hydrolysis of lead nitrate, we have
got the results that when pH is less than 9\^5, Pb\+\{2+\} and Pb(OH)\++ are the main
constituents for activation: lead nitrate can change Zeta potential on the wolframite surface from
negative to positive; lead ions promote the effect of collectors by their special adsorption on
wolframite surface. |
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| Keywords: | wolframite flotation lead nitrate activation |
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