正壬醇与苯乙烯膦酸在金红石表面的协同吸附作用研究
TD952; 苯乙烯膦酸(Styryl Phosphoric Acid,SPA)被认为是选择性最好的金红石浮选捕收剂之一.然而,高消耗和环境保护压力限制了它的大规模应用.本试验使用正壬醇(N-nonyl Alcohol,NNA)作为辅助捕收剂,用以减少SPA用量.实验结果表明:当SPA用作单一捕收剂且用量为0.8× 10-4 mo1.L-1时,金红石精矿的最佳浮选回收率52.26％,品位约45％.当0.4× 10-4 mol.L-1的SPA和0.4×10-4 mol.L-1的NNA用作混合捕收剂时,金红石精矿的回收率提高到82％,品位达到47％.通过泡沫性质测试、表面张力、Zeta电位测量和傅...
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| Published in | 核技术 Vol. 41; no. 9; pp. 48 - 54 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国科学院大学 北京100049%中国科学院上海应用物理研究所 嘉定园区 上海201800
10.09.2018
中国科学院上海应用物理研究所 嘉定园区 上海201800 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0253-3219 |
| DOI | 10.11889/j.0253-3219.2018.hjs.41.090501 |
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| Abstract | TD952; 苯乙烯膦酸(Styryl Phosphoric Acid,SPA)被认为是选择性最好的金红石浮选捕收剂之一.然而,高消耗和环境保护压力限制了它的大规模应用.本试验使用正壬醇(N-nonyl Alcohol,NNA)作为辅助捕收剂,用以减少SPA用量.实验结果表明:当SPA用作单一捕收剂且用量为0.8× 10-4 mo1.L-1时,金红石精矿的最佳浮选回收率52.26％,品位约45％.当0.4× 10-4 mol.L-1的SPA和0.4×10-4 mol.L-1的NNA用作混合捕收剂时,金红石精矿的回收率提高到82％,品位达到47％.通过泡沫性质测试、表面张力、Zeta电位测量和傅里叶变换红外光谱(Fourier Transform Infrared Spectrometer,FT-IR)分析研究了SPA和NNA在金红石表面的协同吸附机制,NNA显著增加泡沫量并提高了泡沫的稳定性,快速降低溶液的表面张力,SPA优先吸附在金红石表面,NNA通过与SPA形成氢键间接吸附在金红石表面. |
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| AbstractList | TD952; 苯乙烯膦酸(Styryl Phosphoric Acid,SPA)被认为是选择性最好的金红石浮选捕收剂之一.然而,高消耗和环境保护压力限制了它的大规模应用.本试验使用正壬醇(N-nonyl Alcohol,NNA)作为辅助捕收剂,用以减少SPA用量.实验结果表明:当SPA用作单一捕收剂且用量为0.8× 10-4 mo1.L-1时,金红石精矿的最佳浮选回收率52.26％,品位约45％.当0.4× 10-4 mol.L-1的SPA和0.4×10-4 mol.L-1的NNA用作混合捕收剂时,金红石精矿的回收率提高到82％,品位达到47％.通过泡沫性质测试、表面张力、Zeta电位测量和傅里叶变换红外光谱(Fourier Transform Infrared Spectrometer,FT-IR)分析研究了SPA和NNA在金红石表面的协同吸附机制,NNA显著增加泡沫量并提高了泡沫的稳定性,快速降低溶液的表面张力,SPA优先吸附在金红石表面,NNA通过与SPA形成氢键间接吸附在金红石表面. |
| Author | 张立娟 肖巍 王兴亚 高兴宇 |
| AuthorAffiliation | 中国科学院上海应用物理研究所 嘉定园区 上海201800;中国科学院大学 北京100049%中国科学院上海应用物理研究所 嘉定园区 上海201800 |
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| Author_FL | XIAO Wei GAO Xingyu ZHANG Lijuan WANG Xingya |
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| DocumentTitle_FL | Study on synergistic adsorption effect of n-nonyl alcohol and styryl phosphoric acid upon the surface of rutile |
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| Keywords | 金红石浮选 泡沫性质 协同作用 |
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| Snippet | TD952; 苯乙烯膦酸(Styryl Phosphoric Acid,SPA)被认为是选择性最好的金红石浮选捕收剂之一.然而,高消耗和环境保护压力限制了它的大规模应用.本试验使用正壬醇(N-nonyl... |
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| Title | 正壬醇与苯乙烯膦酸在金红石表面的协同吸附作用研究 |
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