The leaching kinetics of magnesium slag in ammonium chloride solutions was investigated. The effects of initial ammonium chloride concentration, liquid-solid ratio and reaction temperature on the leaching rate of calcium were determined. The results showed that the leaching rate increased with the increase in initial ammonium chloride concentration, reaction temperature and liquid-solid ratio. It was determined that the leaching rate fit the Avrami equation, and the leaching process was controlled by diffusion. The activation energy was 13.22 kJ/mol.
机构:
School of Metallurgy, Northeastern University
Key Laboratory of Ecological Metallurgy of Multi–metal Intergrown Ores of Ministry of EducationSchool of Metallurgy, Northeastern University
机构:
Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Gen Res Inst Nonferrous Met, Natl Engn Lab Biohydromet, Beijing 100088, Peoples R ChinaChinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Gao, Wencheng
Wen, Jiankang
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Gen Res Inst Nonferrous Met, Natl Engn Lab Biohydromet, Beijing 100088, Peoples R ChinaChinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Wen, Jiankang
Li, Zhibao
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Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R ChinaChinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
机构:
Anpeng Alkaline High Tech Co Ltd, Beijing, Peoples R ChinaChinese Acad Sci, Inst Proc Engn, Beijing 100081, Peoples R China
Sun, Yong
Yao, Ming-Shun
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Anpeng Alkaline High Tech Co Ltd, Beijing, Peoples R ChinaChinese Acad Sci, Inst Proc Engn, Beijing 100081, Peoples R China
Yao, Ming-Shun
Zhang, Jing-Ping
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Chinese Acad Sci, Inst Proc Engn, Beijing 100081, Peoples R ChinaChinese Acad Sci, Inst Proc Engn, Beijing 100081, Peoples R China
Zhang, Jing-Ping
Yang, Gang
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Chinese Acad Sci, Inst Proc Engn, Beijing 100081, Peoples R China
Anpeng Alkaline High Tech Co Ltd, Beijing, Peoples R ChinaChinese Acad Sci, Inst Proc Engn, Beijing 100081, Peoples R China