Study on the mechanism and application of a novel collector-complexes in cassiterite flotation
发布时间：2022-05-01
点击次数：
影响因子：4.539
DOI码：10.1016/j.colsurfa.2017.02.051
发表刊物：Colloids and Surfaces A: Physicochemical and Engineering Aspects
关键字：Cassiterite; Flotation; BHA; Lead ion; Complexes
摘要：Benzohydroxamic acid (BHA) has been widely used as the collector for cassiterite flotation, whereas low collecting ability of BHA need to be improved. It is shown through flotation that BHA exhibits weak collecting capacity to cassiterite even in the case of using lead nitrate as the activator, but the superior floatation performances of lead(II)–BHA complexes is observed. The adsorption isotherms of BHA onto cassiterite reveal a higher adsorption density around pH 9 using lead(II)–BHA complexes as the collector. The complexation of lead(II) by BHA has been studied by differential pulse voltammetry. In weak alkaline solution, [Pb(HL)]+ and [Pb(OH)(HL)] species with significantly collecting power are well predominant. Zeta potential studies demonstrate a stronger affinity to the mineral surface of Pb2+/Pb(OH)+–BHA complexes. XPS and FTIR studies indicate that chemisorption with the similar formation of Sn–O–Pb bond is the main interaction between the two kinds of collector and cassiterite.
第一作者：田孟杰
论文类型：期刊论文
学科门类：工学
一级学科：矿业工程
文献类型：J
卷号：522
页面范围：635-641
是否译文：否
发表时间：2017-07-17
收录刊物：SCI
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