期刊文献+

选择性浸出硫化镍精矿中的镁 预览 被引量:1

Selective Leaching of Magnesium from Nickel Sulfide Concentrate
在线阅读 下载PDF
收藏 分享 导出
摘要 采用硫酸选择性浸出高含镁硫化镍精矿,考察了加酸量、液固比、反应时间、反应温度对浸出率的影响。结果表明,在每千克精矿加入150mL浓硫酸、液固比1∶1、常温反应0.5h的条件下,镍、铜、钴浸出率分别为6.61%、6.67%、6.84%,精矿中MgO含量可以从10.80%降至5.57%,降镁后硫化镍精矿热值低于2 017MJ/t,浸出液加入硫化钠可将浸出液中镍、铜分别降至5.2mg/L、0.6mg/L以下。 High magnesium bearing nickel sulfide concentrate was selectively leached by sulfuric acid.The effects of dosage of sulfuric acid,ratio of liquid to solid(L/S),reaction time and temperature on leaching rate were investigated.The results show that the leaching rate of nickel,copper,and cobalt is 6.61%,6.67%and 6.84%,respectively,and the MgO content is reduced from 10.80%to 5.57%under the optimum conditions including dosage of sulfuric acid of 150mL for one kilogram concentrate,L/S of 1∶1,and leaching time of 0.5hat room temperature.The smelting calorific value of de-magnesium nickel sulfide concentrate is less than 2 017MJ/t.The concentration of nickel and copper in lixivium is reduced to 5.2 mg/L and 0.6mg/L respectively after adding of sodium sulfide.
作者 卢苏君 杨粉娟 马天飞 豆银丽 LU Su-jun,YANG Fen-juan,MA Tian-fei ,DOU Yin-li (1.Jinchuan Nickel & Cobalt Research Engineering Institute,Jinchang 737100,Gansu China;2.Lanzhou University,Lanzhou 730000,China)
出处 《有色金属:冶炼部分》 CAS 北大核心 2013年第7期23-26,共4页 Nonferrous Metals(Extractive Metallurgy)
关键词 硫化镍精矿 酸浸 降镁 浸出率 硫化钠 nickel sulfide concentrate acidic leaching de-magnesium leaching rate sodium sulfide Ni Cu Co
作者简介 卢苏君(1982-),男,甘肃通渭人,工程硕士,工程师.
  • 相关文献

参考文献13

二级参考文献57

共引文献56

同被引文献13

引证文献1

二级引证文献1

投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈