首页> 外文会议>Annual Conference of Metallurgists >ELEMENTAL SULFUR REMOVAL FROM HYDROMETALLURGICAL LEACH RESIDUE VIA POLYSULFIDES: PROCESS CONSIDERATIONS
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ELEMENTAL SULFUR REMOVAL FROM HYDROMETALLURGICAL LEACH RESIDUE VIA POLYSULFIDES: PROCESS CONSIDERATIONS

机译:通过多硫化物从液压冶金浸出残留物中取出元素硫:工艺考虑

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The removal of elemental sulfur from leach residues derived from massive sulfide concentrates via hydrometallurgical routes has been demonstrated in a laboratory setting by converting water-insoluble sulfur to water-soluble polysulfides. The approach was applied to leach residue from Vale's nickel hydromet demonstration plant in Argentia, Newfoundland, which contained significant amounts of elemental sulfur. This technique offers an alternative treatment protocol for residues with a sulfur component not amenable to standard flotation/hot filtration processes. The practical considerations of a proposed flow sheet will be discussed including the impact of other sulfur species (e.g. thiosulfate and sulfides) and key process variables.
机译:通过将水不溶性硫转化为水溶性多硫化物,在实验室设定中证明了从富含硫化物浓缩物中衍生自硫化物浓缩物的浸出物残留物的元素硫。该方法适用于纽芬兰阿根廷谷镍镍水表示范厂的乳渣残留物,其含有大量的元素硫。该技术为残留物提供含硫组分的替代治疗方案,不适合标准浮选/热过滤过程。将讨论所提出的流动表的实际考虑,包括其他硫种类的影响(例如硫代硫酸盐和硫化物)和关键过程变量。

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