Leaching magnesium oxide in boron mud by water with pressurized CO2 | |
Bo, Jing1,2,3; Zhang, Yifei1,2; Zhang, Yi1,2 | |
刊名 | HYDROMETALLURGY |
2017-08-01 | |
卷号 | 171页码:142-148 |
关键词 | Leaching Magnesium Oxide Boron Mud Co2 |
ISSN号 | 0304-386X |
DOI | 10.1016/j.hydromet.2017.05.010 |
文献子类 | Article |
英文摘要 | 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. |
WOS关键词 | Olivine Dissolution Kinetics ; Mineral Carbonation ; Dioxide ; Sequestration ; Precipitation ; Salinity ; Storage ; Ph |
WOS研究方向 | Metallurgy & Metallurgical Engineering |
语种 | 英语 |
WOS记录号 | WOS:000407874000018 |
资助机构 | National Natural Science Foundation of China(21276258) ; National 863 Project of China(2011AA060701) |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/23171] |
专题 | 过程工程研究所_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 |
推荐引用方式 GB/T 7714 | 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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