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投稿时间：2019-09-26 修订日期：2019-09-26
投稿时间：2019-09-26 修订日期：2019-09-26
中文摘要: 采用油酸钠(NaOL)与十六烷基三甲基溴化铵(CTAB)混合捕收剂进行磁铁矿与角闪石的浮选分离研究。分别考察了单一捕收剂CTAB、NaOL和混合捕收剂对单矿物和人工混合矿浮选的影响,借助Zeta电位、FTIR对捕收剂与矿物表面的吸附机理进行了研究。矿物浮选实验结果表明：在pH=5.5,CTAB与油酸钠的摩尔比为2:1的条件下,混合捕收剂较单一捕收剂具有更好的选择性。Zeta电位和红外光谱结果表明,单一捕收剂CTAB和油酸钠分别以物理吸附与化学吸附的形式吸附在矿物表面,混合捕收剂中油酸钠的存在一定程度上抑制了CTAB在磁铁矿表面的吸附,但不影响CTAB在角闪石矿物表面的吸附。
Abstract:In this paper, sodium oleate (NaOL) and cetyltrimethylammonium bromide (CTAB) were used as collectors to separate hornblende and magnetite. Single collector CTAB, NaOL and mixed collector were used as collectors respectively to carry out flotation experiments of single mineral and mixed mineral. Meanwhile, the adsorption mechanism between collector and mineral surface was studied by means of Zeta potential and FTIR. The results of mineral flotation experiment show that under the condition of pH=5.5 and the molar ratio of CTAB and NaOL is 2:1, the mixed collector has better selectivity than the single collector. Zeta potential and FTIR show that CTAB and NaOL are adsorbed on the mineral surface in the form of physical adsorption and chemical adsorption respectively. However, the presence of NaOL in the mixed collector inhibits the adsorption of CTAB on the surface of magnetite to a certain extent, but has little effect on the adsorption of CTAB on the surface of hornblende.
keywords: reverse flotation magnetite hornblende collector
文章编号： 中图分类号： 文献标志码：
基金项目:国家自然科学基金项目（51604188）
| 作者 | 单位 | |
| 刘婧 | 太原理工大学 矿业工程学院 | Janicelia@163.com |
| 杨志超* | 太原理工大学 矿业工程学院 | yangzhichao@tyut.edu.cn |
| 滕青 | 太原理工大学 矿业工程学院 | |
| 尚玺 | 太原理工大学 矿业工程学院 |
引用文本：
刘婧,杨志超,滕青,尚玺.CTAB与油酸钠混合捕收剂浮选分离磁铁矿与角闪石的研究[J].有色金属（选矿部分）,2020(3):119-125.
LIU Jing,YANG Zhichao,TENG Qing,SHANG Xi.Seperation of hornblende and magnetite by reverse flotation with CTAB and NaOL[J].Nonferrous Metals(Mineral Processing Section),2020(3):119-125.
刘婧,杨志超,滕青,尚玺.CTAB与油酸钠混合捕收剂浮选分离磁铁矿与角闪石的研究[J].有色金属（选矿部分）,2020(3):119-125.
LIU Jing,YANG Zhichao,TENG Qing,SHANG Xi.Seperation of hornblende and magnetite by reverse flotation with CTAB and NaOL[J].Nonferrous Metals(Mineral Processing Section),2020(3):119-125.
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