公开(公告)号：EP0608037B1

公开(公告)日：2000-06-07

申请号：EP94200134.8

申请日：1994-01-20

申请人： NORANDA INC.

发明人： Houlachi, George ,  Janjua, M. Barakat I. ,  Kitzinger, Frank ,  Wint, Gregory A. ,  Labuc, Vladimir M.

IPC分类号： G01N27/42

CPC分类号： G01N27/42

公开(公告)号：EP0608037A3

公开(公告)日：1994-10-12

申请号：EP94200134.8

申请日：1994-01-20

申请人： NORANDA INC.

发明人： Houlachi, George ,  Janjua, M. Barakat I. ,  Kitzinger, Frank ,  Wint, Gregory A. ,  Labuc, Vladimir M.

IPC分类号： G01N27/42

CPC分类号： G01N27/42

摘要： A method and an apparatus for on-line monitoring the quality of a purified metal sulphate solution is disclosed. The method comprises the steps of depositing metal from the purified metal sulphate solution onto a working electrode submerged in the solution by passing constant current through the solution at a current density in the range of 25 to 150 mAlcm 2 for a predetermined time interval, dissolving the metal deposited on the working electrode by reversing the polarity of the potential applied between the working electrode and a counter electrode so as to pass a reverse current of the same current density through the solution until all zinc is removed from the working electrode as sensed by a sudden change in electrode potential, deriving the quality index of the solution by calculating the ratio of the dissolution time over the deposition time, and restoring the surface of the counter electrode by effecting the dissolution of the metal deposited on the counter electrode at the end of each measurement.

公开(公告)号：EP0608037A2

公开(公告)日：1994-07-27

申请号：EP94200134.8

申请日：1994-01-20

申请人： NORANDA INC.

发明人： Houlachi, George ,  Janjua, M. Barakat I. ,  Kitzinger, Frank ,  Wint, Gregory A. ,  Labuc, Vladimir M.

IPC分类号： G01N27/42

CPC分类号： G01N27/42

摘要： A method and an apparatus for on-line monitoring the quality of a purified metal sulphate solution is disclosed. The method comprises the steps of depositing metal from the purified metal sulphate solution onto a working electrode submerged in the solution by passing constant current through the solution at a current density in the range of 25 to 150 mAlcm 2 for a predetermined time interval, dissolving the metal deposited on the working electrode by reversing the polarity of the potential applied between the working electrode and a counter electrode so as to pass a reverse current of the same current density through the solution until all zinc is removed from the working electrode as sensed by a sudden change in electrode potential, deriving the quality index of the solution by calculating the ratio of the dissolution time over the deposition time, and restoring the surface of the counter electrode by effecting the dissolution of the metal deposited on the counter electrode at the end of each measurement.

摘要翻译： 公开了用于在线监测纯化的金属硫酸盐溶液的质量的方法和设备。 该方法包括以下步骤：将金属从纯化的硫酸金属盐溶液中沉积到浸没在溶液中的工作电极上，通过使恒定电流以25至150mA / cm 2范围内的电流密度通过溶液达预定时间间隔，溶解金属 通过反转施加在工作电极和反电极之间的电位的极性而沉积在工作电极上，以便使相同电流密度的反向电流通过溶液，直到所有锌从突发感测的工作电极上移除 改变电极电位，通过计算溶解时间与沉积时间的比率来导出溶液的质量指数，并且通过在每个电极的末端实现沉积在对电极上的金属的溶解来恢复对电极的表面 测量。