典型文献
Depression behaviors of N-thiourea-maleamic acid and its adsorption mechanism on galena in Mo-Pb flotation separation
文献摘要：
In present study,a novel organic depressant N-thiourea-maleamic acid (TMA) was synthesized and applied as a galena depressant in the flotation separation of Mo-Pb ores.The depression behaviors of TMA were tested through flotation experiments.A wider separation window for single minerals over 90.0％ was obtained at 30.0 mg/L TMA,confirming that TMA could depress galena significantly,while effected molybdenite floatability slightly.An effective separation was obtained for artificially mixed min-erals and actual Mo-Pb ores.The adsorption mechanism on galena was revealed by UV-Vis spectra,zeta potential tests,Fourier transform infrared spectroscopy (FT-IR) analysis,contact angle tests and X-ray photoelectron spectroscopy (XPS) analysis.The zeta potentials of galena became more negative and the contact angle of galena dropped from initial 74.36° to 57.8° with 30.0 mg/L TMA depressant,inferring that TMA had adsorbed on galena surface.The analysis results of UV-Vis spectra,FT-IR and XPS gave fur-ther evidence that TMA might chemisorb on galena surface via Pb sites on galena surface and the thiourea group in TMA molecular structure,while the carboxyl group played a role of hydrophilicity.
文献关键词：
中图分类号：
作者姓名：
Liang Lu;Wei Xiong;Yangge Zhu;Xingrong Zhang;Yongxing Zheng
作者机构：
State Key Laboratory of Mineral Processing,Beijing 102628,China;BGRIMM Technology Group,Beijing 102628,China;China-South Africa Belt and Road Joint Laboratory on Sustainable Exploration and Utilization of Mineral Resources,Beijing 102628,China;State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Kunming 650093,China
文献出处：
引用格式：
[1]Liang Lu;Wei Xiong;Yangge Zhu;Xingrong Zhang;Yongxing Zheng-.Depression behaviors of N-thiourea-maleamic acid and its adsorption mechanism on galena in Mo-Pb flotation separation)[J].矿业科学技术学报（英文版）,2022(01):181-189
A类：
maleamic,depress,erals,chemisorb
B类：
Depression,behaviors,thiourea,acid,its,adsorption,mechanism,galena,Mo,Pb,flotation,separation,In,present,study,novel,organic,depressant,TMA,was,synthesized,applied,ores,depression,were,tested,through,experiments,wider,window,single,minerals,over,obtained,confirming,that,could,significantly,while,effected,molybdenite,floatability,slightly,An,effective,artificially,mixed,actual,revealed,by,UV,Vis,spectra,zeta,tests,Fourier,transform,infrared,spectroscopy,FT,analysis,contact,angle,ray,photoelectron,XPS,potentials,became,more,negative,dropped,from,initial,inferring,had,adsorbed,surface,results,gave,fur,ther,evidence,might,via,sites,group,molecular,structure,carboxyl,played,role,hydrophilicity
AB值：
0.503242
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