Thermodynamic equilibrium of hydroxyl complex ions in heavy metals(Cu2+,pb2+,Zn2+,Cd2+)-H2O system

• 作 者: YunyanWang;LiyuanChai;HaoChang;QingweiWang;YudeShu;FeiPei;
• 机 构: School of Metallurgical Science and Engineering, Central South University, 410083, Changsha China
• 出 处: 第五届国际湿法冶金学术会议(5th International Conference on Hydrometallurg
• 发表日期: 2009年期

　　Diagrams for the concentration of complex ions pc-pH, the ratio of four kinds of heavy metals(Zn2+, Cu2+, Cd2+, Pb2+) hydroxyl complex ions αn-pH, conditional solubility product of their hydrates to pH in their system were drawn respectively based on the thermodynamic equilibrium principle of complex chemistry.The relationship between the equilibrium concentration of total heavy metal ions and pH is illustrated in Me2+-H2O system, when dissolution of hydrate is in equilibrium.