Optimized conditions for selective gold flotation by ToF-SIMS and ToF-LIMS

被引：27

作者：

Chryssoulis, SL ^{[1
]}

Dimov, SS ^{[1
]}

机构：

[1] Amtel, London, ON N6G 4X8, Canada

来源：

APPLIED SURFACE SCIENCE | 2004年 / 231卷

关键词：

ToF-SIMS; ToF-LIMS; organic collectors; gold flotation;

D O I：

10.1016/j.apsusc.2004.03.058

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This work describes a comprehensive characterization of the factors controlling the floatability of free gold from flotation test using reagents (collectors) at plant concentration levels. A relationship between the collectors loadings on gold particles and their surface composition has been established. The findings of this study show that silver activates gold flotation and there is a strong correlation between the surface concentration of silver and the loading of certain collectors. The organic surface analysis was done by ToF-SIMS while the inorganic surface analysis was carried out by time-of-flight laser ionization mass spectrometry (ToF-LIMS). The developed testing protocol based on ToF-LIMS and ToF-SIMS complementary surface analysis allows for optimization of the flotation scheme and hence improved gold recovery. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：265 / 268

页数：4

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