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| Study on the Thermodynamic Equilibrium in Ni-NH_3-H_2O System |
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| DOI：doi：10.3969/j.issn.1007-7545.年份.期号.顺序号 |
| KeyWord:Complex ions;Neutralization-hydrolysis;Nickel ammonia waste water;Ni-NH3-H2O system; |
| ZHOU Min,MIN Xiao-bo,CHAI Li-yuan,WANG Yun-yan,SHU Yu-de,WANG Na |
| School of Metallurgical Science and Engineering;Central South University;Changsha 410083;China |
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| Abstract: |
| State diagramof loga-pH for the equilibrium concentration of nickel ions under different total ammonia concentrations in Ni-NH3-H2O system was drawn.And the effect that ammonia concentration and pH value have on the solubility of Ni(OH)2 is revealed from the diagram.The solubility of Ni(OH)2 increases with the increase of ammonia concentration.The results provide a theoretical basis for the technology on removal of nickel ion from the wastewater by neutralized hydroxylation method. |
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