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首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >The effect of copper sulphate addition on the recovery of chromite in the flotation of UG2 ore
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The effect of copper sulphate addition on the recovery of chromite in the flotation of UG2 ore

机译：添加硫酸铜对UG2矿石浮选中亚铬铁矿回收的影响

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摘要

Chromite and talc are two major gangue minerals in platinum bearing UG2 ore processed from the Bushaveld Complex in South Africa. During flotation, tale is effectively depressed by the addition of depressants. Chromite, on the other hand, is considered to be hydrophilic, its recovery is believed to follow water recovery and therefore recovered by entrainment only. In certain cases it has been shown that chromite can be activated by the reagent suite and hence is made amenable to true flotation. The aim of the work was to investigate the effect of the addition of copper sulphate as an activator of chromite. The results of these experiments showed that copper sulphate, at higher dosages, activated the chromite. Low dosages of copper sulphate resulted in no chromite activation. This was observed at low depressant dosages of both IMP4, but that the activation was still significant with the use of KU5. The activation of the chromite is attributed to the form of the copper species present in the solution and on the mineral surfaces at pH=9 enhancing collector adsorption and thereby increasing hydrophobicity. These species were not measured directly and it is recommended that this should be further investigated using surface mineral techniques.
机译：亚铬酸盐和滑石粉是从南非布什维尔德综合体加工而成的含UG2铂金矿石中的两种主要脉石矿物。在浮选过程中，通过添加抑制剂可以有效地抑制故事情节。另一方面，铬铁矿被认为是亲水的，据信铬铁矿的回收遵循水的回收，因此仅通过夹带进行回收。在某些情况下，已证明亚铬酸盐可以被试剂套件活化，因此适合进行真正的浮选。这项工作的目的是研究添加硫酸铜作为铬铁矿活化剂的效果。这些实验的结果表明，较高剂量的硫酸铜活化了亚铬酸盐。低剂量的硫酸铜不会导致亚铬酸盐活化。在两种IMP4的低抑制剂剂量下都可以观察到这一点，但是使用KU5时激活仍然很明显。亚铬酸盐的活化归因于溶液中和矿物质表面上在pH = 9时存在的铜物质的形式，从而增强了捕集剂的吸附，从而增加了疏水性。这些物质没有直接测量，建议使用地面矿物技术对其进行进一步研究。

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