摘要
应用有关热力学数据,对Ni-NH3-H2O系的水解平衡进行了理论计算,绘制了在不同总氨浓度下的Ni-NH3-H2O系热力学loga-pH状态图。loga-pH状态图揭示了氨浓度及pH对Ni(OH)2溶解度影响的热力学规律,随着氨浓度的增加,Ni(OH)2溶解度增加。研究结果为中和水解法处理镍氨废水提供了理论依据。
State diagramof loga-pH for the equilibrium concentration of nickel ions under different total, ammonia concentrations in Ni-NH3-H20 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 technol- ogy on removal of nickel ion from the wastewater by neutralized hydroxylation method.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2009年第1期2-5,共4页
Nonferrous Metals（Extractive Metallurgy)
基金
国家自然科学基金资助项目(50508044)
湖南省科技计划攻关重大专项项目(05SK1003-1)
关键词
配合离子
中和水解
镍氨废水
Ni-NH3-H2O系
Complex ions
Neutralization-hydrolysis
Nickel ammonia waste water
Ni-NH3-H2 O system
