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从红土镍矿镍铁渣中分离浸取镍铬工艺
张培育; 郭强; 宋云霞; 曲景奎; 齐涛
2013
Source Publication过程工程学报
Issue04Pages:608-614
Abstract将镍铁渣破碎、球磨后磁选富集Ni于精矿中,富集Cr于尾矿中.磁选后Ni从0.26%富集至2.57%(ω),Cr从4.55%富集至4.61%(ω).考察了H_2SO_4常压酸浸精矿时Ni的浸出规律.结果表明,在酸浸温度110℃、酸浓度220g/L、酸浸时间2 h、液固质量比5的优化酸浸条件下,Ni浸出率为91.5%.在80~120℃内,Ni浸出反应活化能为19.6kJ/mol.Ni浸出反应主要受扩散控制.用Na_2CO_3碱熔焙烧尾矿,在温度1000℃、Na_2CO_3/渣质量比0.65、时间1 h、镍铁渣尾矿粒度<74μm的优化条件下,Cr浸出率为94.1%.
Keyword镍铁渣 磁选 常压酸浸 碱熔
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/10746
Collection研究所(批量导入)
Recommended Citation
GB/T 7714
张培育,郭强,宋云霞,等. 从红土镍矿镍铁渣中分离浸取镍铬工艺[J]. 过程工程学报,2013(04):608-614.
APA 张培育,郭强,宋云霞,曲景奎,&齐涛.(2013).从红土镍矿镍铁渣中分离浸取镍铬工艺.过程工程学报(04),608-614.
MLA 张培育,et al."从红土镍矿镍铁渣中分离浸取镍铬工艺".过程工程学报 .04(2013):608-614.
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