Leaching magnesium oxide in boron mud by water with pressurized CO2
Bo, Jing1,2,3; Zhang, Yifei1,2; Zhang, Yi1,2
2017-08-01
发表期刊HYDROMETALLURGY
ISSN0304-386X
卷号171页码:142-148
摘要In the process of leaching magnesium oxide by water containing CO2, the obtained concentration is normally only 5 g/L to 12 g/L. To obtain concentrated magnesic leaching liquor from boron mud, pressurized dissolution processes were investigated under various CO2 pressures from 1 MPa to 5 MPa, as well as ratios of solid to liquid, stirring speeds and leaching temperatures, which significantly influenced the leaching of magnesium oxide. And the concentration of MgO in the solution was achieved as high as 26.63 g/L with MgO leaching efficiency of 38.80% under the condition of CO2 pressure 5 MPa, solid/liquid ratio 0.18, stirring speed 500 rpm, leaching temperature 50 degrees C, and leaching time 1.5 h, meanwhile, the impurity concentrations of CaO, B, Fe, Pd and Si were 0.16 g/L, 0.11 g/L, 0.23 g/L, 0.01 g/L and 0.06 g/L, respectively. The magnesium oxide leaching method by pressurized carbonated water is applicable for treating with other materials rich in magnesium hydrate or magnesium oxide, such as calcined magnesite, dolomite and boron mud by CO2-soda process.
关键词Leaching Magnesium Oxide Boron Mud Co2
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.hydromet.2017.05.010
收录类别SCI
语种英语
关键词[WOS]OLIVINE DISSOLUTION KINETICS ; MINERAL CARBONATION ; DIOXIDE ; SEQUESTRATION ; PRECIPITATION ; SALINITY ; STORAGE ; PH
WOS研究方向Metallurgy & Metallurgical Engineering
WOS类目Metallurgy & Metallurgical Engineering
项目资助者National Natural Science Foundation of China(21276258) ; National 863 Project of China(2011AA060701)
WOS记录号WOS:000407874000018
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23171
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Bo, Jing,Zhang, Yifei,Zhang, Yi. Leaching magnesium oxide in boron mud by water with pressurized CO2[J]. HYDROMETALLURGY,2017,171:142-148.
APA Bo, Jing,Zhang, Yifei,&Zhang, Yi.(2017).Leaching magnesium oxide in boron mud by water with pressurized CO2.HYDROMETALLURGY,171,142-148.
MLA Bo, Jing,et al."Leaching magnesium oxide in boron mud by water with pressurized CO2".HYDROMETALLURGY 171(2017):142-148.
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