Surface Chemistry and Microflotation of Xenotime and Selected Gangue Minerals Using Octanohydroxamic Acid as the Collector

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• 作者：Yicheng Zhang ; Corby Anderson
• 关键词：Xenotime ; Surface chemistry ; Microflotation
• 刊名：Journal of Sustainable Metallurgy
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：3
• 期：1
• 页码：39-47
• 全文大小：1240KB
• 刊物类别：Metallic Materials; Sustainable Development; Industrial Chemistry/Chemical Engineering;
• 刊物主题：Sustainable Development; Metallic Materials;
• 出版者：Springer International Publishing
• ISSN：2199-3831
• 卷排序：3

文摘

This research study was designed to investigate the principles of surface chemistry and microflotation of xenotime and selected gangue minerals, and to achieve a better understanding of the factors affecting flotation performance and separation of xenotime from associated gangue minerals in an efficient way. A preconcentrated xenotime sample and four selected gangue minerals such as ilmenite, zircon, schorl, and staurolite were used in this study. Using octanohydroxamic acid as a collector, surface chemistry was investigated through surface area measurements, zeta potential tests, and adsorption density determinations. The zeta potential of xenotime was measured as 3.90 in this study. The results of adsorption studies showed a mechanism of chemisorption and correlated well with the results of microflotation tests conducted at room temperature in a Partridge–Smith cell. In this paper, the surface chemistry and microflotation behaviors are discussed based on both the lab observations and literature review, in the hope to shed light on further research and industrial flotation operation.