| 铜离子对CMC浮选分离滑石和黄铁矿的影响 |
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| 引用本文： | 李长斌,张国范,刘洪江,荀骆冰.铜离子对CMC浮选分离滑石和黄铁矿的影响[J].有色金属工程,2020(6):65-69. |
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| 作者姓名： | 李长斌 张国范 刘洪江 荀骆冰 |
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| 作者单位： | 中南大学,中南大学,中南大学,中南大学 |
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| 基金项目： | 国家重点基础研究发展计划（973计划）项目（2014CB643402） |
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| 摘 要： | 为实现黄铁矿和滑石更好地浮选分离，基于CMC对滑石抑制能力不强的弱点，在pH值为9的条件下，以CMC作为抑制剂，戊黄药作为捕收剂，探究了铜离子的加入对滑石和黄铁矿浮选的影响。结果表明，浮选过程中加入铜离子，在不影响黄铁矿浮选的情况下（浮选回收率90.8%），有效的抑制了滑石的浮选（浮选回收率由57.07%降低到8.99%）。另外还对CMC和铜离子加药顺序做了探究，发现铜离子在CMC前加入不影响黄铁矿的浮选，但更有利于滑石的抑制。
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| 关 键 词： | 铜离子 羧甲基纤维素(CMC) 滑石 浮选分离 |
| 收稿时间： | 2019/11/14 0:00:00 |
| 修稿时间： | 2019/11/20 0:00:00 |
Effect of Cu2+ Ion on the Flotation Separation of Talc and Pyrite by CMC |
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| lichangbin,zhangguofan,LIU hongjiang and XUN luobing.Effect of Cu2+ Ion on the Flotation Separation of Talc and Pyrite by CMC[J].Nonferrous Metals Engineering,2020(6):65-69. |
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| Authors: | lichangbin zhangguofan LIU hongjiang and XUN luobing |
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| Affiliation: | zhongnandaxue,zhongnandaxue,central south university,central south university |
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| Abstract: | To obtain better flotation separation performance of pyrite and talc and based on the weak depression ability of CMC on talc, the effect of Cu2+ ion on the flotation behavior of talc and pyrite at pH 9 was investigated using CMC as depressant and Amyl xanthate as collector. The results showed that talc was effectively depressed by adding Cu2+ ion (the flotation recovery decreased from 57.07% to 8.99% ), but pyrite was not depressed (the flotation recovery was 90.8%). Besides, the addition sequence of CMC and Cu2+ ion was investigated, and it was found that the addition of Cu2+ ion before CMC did not affect the flotation of pyrite, but was more conducive to the depression of talc . |
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