| 铁闪锌矿无捕收剂浮选研究 |
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| 引用本文： | 张芹,胡岳华,徐兢,陈铁军.铁闪锌矿无捕收剂浮选研究[J].有色金属(选矿部分),2005(5):19-21. |
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| 作者姓名： | 张芹 胡岳华 徐兢 陈铁军 |
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| 作者单位： | 1. 武汉科技大学化学与资源环境工程学院,武汉,430081
2. 中南大学资源加工与生物工程学院,长沙,410083 |
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| 基金项目： | 国家自然科学基金重点项目(50234010) |
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| 摘 要： | 考察了铁闪锌矿的自诱导和硫诱导无捕收剂浮选行为,结果表明,铁闪锌矿在弱酸性矿浆中可以实现自诱导浮选,通过药剂调控矿浆电位,得出了不同pH条件下,回收率-矿浆电位关系和浮选电位上下限-pH关系。通过矿物表面提取,探讨了铁闪锌矿表面氧化的机理,中性硫可能是主要疏水体。在中性和弱碱性条件下,铁闪锌矿具有硫诱导无捕收剂浮选。
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| 关 键 词： | 铁闪锌矿 无捕收剂 浮选 电化学 |
| 文章编号： | 1671-9492（2005）05-0019-03 |
| 收稿时间： | 2004-12-15 |
| 修稿时间： | 2005-02-28 |
STUDY OF THE MARMATITE COLLECTORLESS FLOTATION |
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| Authors: | ZHANG Qin HU Yue-hu XU Jing CHEN Tie-jun |
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| Affiliation: | ZHANG Qin, HU Yue-hua,XU Jing, CHEN Tie-jun (1. College of Chemical Engineering,Resources and Environment, Wuhan University of Science and Technology, Wuhan 430081,China; 2. School of Resources Minerals |
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| Abstract: | The collectorless flotation behavior of marmatite was investigated in this paper. It has been shown that marmatitie exhibited good self-induced floatability at pH<4.7.With the variation of pH, the upper or lower limit of marmatite flotation is different. The potential -pH ranger for marmatite flotation was determined. Reaction mechanism of the surface oxidation for marmatite was studied by extraction of neutral sulphur from mineral surfaces. The marmatite has sulphur-induced flotability at neutral and weakly alkaline pulp. The elemental sulphur was identified to be primary hydrophobic entity on marmatite. |
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| Keywords: | marmatite collectorless flotation |
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