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DOI:
矿冶:2019,28(4):-
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Ramu红土镍矿湿法冶炼工艺中钪的浸出和分离富集的研究
李 丹
(瑞木镍钴管理有限公司)
The behavior of leach and enrichment on scandium for Ramu laterite with hydrometallurgical Technology
lidan
(Ramu NiCo Management(MCC)Limited)
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投稿时间:2018-07-15    修订日期:2018-08-06
中文摘要: 分析了Ramu红土镍矿中稀土金属钪的矿物特性,通过结合生产实际,研究了钪在高压酸浸,循环浸出过程中的浸出及中和除铁铝工艺中的分离,跟踪了钪在整个湿法冶炼工艺系统的走向。通过实验研究了除铁铝工艺中PH值、石灰石乳浆加入速度和搅拌强度对钪的分离富集的影响。在优化操作条件下,二段中和除铁铝渣中分离富集的钪含量为1300g/t,由此得到钪富集比大幅提升的粗钪中间体。针对当前钪的综合回收利用存在的问题,提出进一步富集中和除铁铝渣粗钪中间体中钪含量的方法。并特别指出:在对含钪的红土镍矿提取主金属Ni,Co的湿法冶炼及分离工艺中,有必要在单独的系统中回收利用二段铁铝渣粗钪中间体中富集比已经得到大幅提升的钪资源。
Abstract:The characteristic of scandium in Ramu laterite had been detailed. Its distribution in the hydrometallurgical process for practical production, includes the leach in high pressure acid leaching (HPAL) and cycling leaching as well as the enrichment in the iron and aluminum removal of neutralization process were investigated. The control factors of operation conditions, include the pH value, the adding speed of limestone slurry and the strength of agitation in such process in the separation and enrichment of scandium were examined through experiments.The scandium with the content of 1300g/t were separated and enriched in second stage Fe/Al removal residue under optimum conditions. The improvement measurements for further enrichment of scandium were put forward. It’s very necessary to recover scandium in the separated system in hydrometallurgy process for the extraction of nickel and cobalt as far as the second stage Fe/Al removal residue is concerned, as the enrichment in this coarse scandium of intermediate is greatly improved.
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lidan Ramu NiCo Management(MCC)Limited lidan@mccgrd.com 
引用文本:
李 丹.Ramu红土镍矿湿法冶炼工艺中钪的浸出和分离富集的研究[J].矿冶,2019,28(4):.

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