巯基乙酸乙酯作抑制剂分离黄铜矿和钼矿的浮选行为及机理研究

IF 1.3 4区工程技术 Q4 CHEMISTRY, PHYSICAL

Physicochemical Problems of Mineral Processing Pub Date : 2023-03-30 DOI:10.37190/ppmp/162824

Xiaofeng Yang, Xukun Zhao, Yao-yao Liu

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引用次数: 0

摘要

通过单矿物微浮选试验、zeta电位试验和x射线光电子能谱(XPS)分析研究了巯基乙酸乙酯类有机小分子抑制剂对黄铜矿辉钼矿浮选行为的影响。浮选试验结果表明，在弱碱性条件下，巯基乙酸乙酯类有机小分子抑制剂能有效分离铜和钼，并有选择性地抑制黄铜矿。红外光谱和XPS分析表明，巯基乙酸乙酯有机小分子中的亲水性官能团C=O和-COOH可以化学吸附在黄铁矿表面。巯基乙酸乙酯对辉钼矿zeta电位无明显影响。因此，巯基乙酸乙酯能有效地分离黄铜矿和辉钼矿。

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Study on flotation behavior and mechanism of separating chalcopyrite and Molybdenite with ethyl mercaptoglycolate as inhibitor

The effect of ethyl thioglycolate organic small molecule inhibitors on chalcopyrite molybdenite flotation behaviour is investigated via single mineral micro-flotation tests, zeta potential tests, and X-ray photoelectron spectroscopy (XPS) analysis. Results of the flotation test indicate that ethyl thioglycolate organic small-molecule inhibitors can effectively separate Cu and Mo and selectively inhibit chalcopyrite under weak alkaline conditions. Infrared spectroscopy and XPS analysis show that hydrophilic functional groups C=O and -COOH in the ethyl thioglycolate organic small molecules can chemically adsorb onto the chalcopyrite surface. Moreover, ethyl thioglycolate has no obvious effect on zeta potential of molybdenite. Therefore, ethyl thioglycolate can effectively separate chalcopyrite and molybdenite.

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来源期刊

Physicochemical Problems of Mineral Processing CHEMISTRY, PHYSICAL-MINING & MINERAL PROCESSING

自引率

6.70%

发文量

期刊介绍： Physicochemical Problems of Mineral Processing is an international, open access journal which covers theoretical approaches and their practical applications in all aspects of mineral processing and extractive metallurgy. Criteria for publication in the Physicochemical Problems of Mineral Processing journal are novelty, quality and current interest. Manuscripts which only make routine use of minor extensions to well established methodologies are not appropriate for the journal. Topics of interest Analytical techniques and applied mineralogy Computer applications Comminution, classification and sorting Froth flotation Solid-liquid separation Gravity concentration Magnetic and electric separation Hydro and biohydrometallurgy Extractive metallurgy Recycling and mineral wastes Environmental aspects of mineral processing and other mineral processing related subjects.