Adsorption and flotation mechanism of a ketoxime-dithiocarbonate surfactant to chalcopyrite

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成果类型：

期刊论文

作者：

肖静晶;姚陈;武亚新;李昌珠

通讯作者：

Chen Yao<&wdkj&>Ya-xin Wu

作者机构：

[Chen Yao; Ya-xin Wu] Hunan Key Laboratory for the Design and Application of Actinide Complexes, School of Chemistry and Chemical Engineering, University of South China, Hengyang, China

School of Chemistry and Chemical Engineering, Central South University, Changsha, China

[Chang-zhu Li] State Key Laboratory of Utilization of Woody Oil Resource (Hunan Academy of Forestry), Changsha, China

[Jing-jing Xiao] Hunan Key Laboratory for the Design and Application of Actinide Complexes, School of Chemistry and Chemical Engineering, University of South China, Hengyang, China<&wdkj&>School of Chemistry and Chemical Engineering, Central South University, Changsha, China<&wdkj&>State Key Laboratory of Utilization of Woody Oil Resource (Hunan Academy of Forestry), Changsha, China

通讯机构：

[Chen Yao; Ya-xin Wu] H

Hunan Key Laboratory for the Design and Application of Actinide Complexes, School of Chemistry and Chemical Engineering, University of South China, Hengyang, China<&wdkj&>Hunan Key Laboratory for the Design and Application of Actinide Complexes, School of Chemistry and Chemical Engineering, University of South China, Hengyang, China

语种：

英文

关键词：

O-isopropyl-S- [2- (hydroxyimino) propyl] dithiocarbonate ester;chalcopyrite;hydrophobicity;adsorption mechanism;flotation

关键词(中文)：

O-异丙基-S-[2-(羟基亚氨基)丙基]二硫代碳酸酯;黄铜矿;疏水性;吸附机理;浮选

期刊：

中南大学学报(英文版)

ISSN：

2095-2899

年：

2022

卷：

期：

页码：

3847-3857

DOI：

10.1007/s11771-022-5217-0

基金类别：

Projects（22108114, 5180031184） supported by the National Natural Science Foundation of China；

机构署名：

本校为第一且通讯机构

院系归属：

化学化工学院

摘要：

The adsorption mechanism of O-isopropyl-S-[2-(hydroxyimino) propyl] dithiocarbonate ester (IPXPO) to chalcopyrite was investigated by using contact angle, in-situ atomic force microscopy (in-situ AFM), cyclic voltammetry (CV) and X-ray photoelectron spectroscopy (XPS). The results of contact angle and in-situ AFM demonstrated that IPXPO adsorbed on chalcopyrite increases surface hydrophobicity and roughness. It was found by CV experiments that a layer passive film was formed. The results of XPS spectra further revealed that the thiol S atom, ox...

摘要(中文)：

采用接触角、原位原子力显微镜、循环伏安和X射线光电子能谱研究了O-异丙基-S-[2-（羟基亚氨基）丙基]二硫代碳酸酯（IPXPO）对黄铜矿的吸附机理。接触角和原位原子力显微镜结果表明，IPXPO吸附在黄铜矿表面，增加了表面的疏水性和粗糙度。CV实验结果证实IPXPO吸附在黄铜矿表面形成了一层钝化膜。XPS光谱结果进一步揭示IPXPO分子中的巯基S原子、肟基N原子和O原子可能与铜原子反应分别形成Cu—S,Cu—N和Cu—O键。人工混合矿物浮选试验表明，在p H=6.79,IPXPO初始浓度5×10-5 mol/L的条件下，黄铜矿的浮选回收率达到90%，而黄铁矿的浮选回收率仅25%，说明IPXPO是一种良好的分离富集黄铜矿的浮选捕...

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Adsorption and flotation mechanism of a ketoxime-dithiocarbonate surfactant to chalcopyrite

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