초록 ▼

Method and apparatus are disclosed for improving the anodic life of an electrode in an electrodialysis stack which electrode comprises at least in part an area which is anodic during at least part of the duty time of said stack, which stack also comprises an electrode compartment (chamber, cell, spa

Method and apparatus are disclosed for improving the anodic life of an electrode in an electrodialysis stack which electrode comprises at least in part an area which is anodic during at least part of the duty time of said stack, which stack also comprises an electrode compartment (chamber, cell, space) containing said electrode, a counter-electrode in a counter-electrode compartment and interior compartments between said electrode compartment and said counter-electrode compartment, which method and apparatus comprises: (a) introducing into said electrode compartment (and means therefor) a solution capable of forming a film on said area which is anodic during at least part of the operating time of said stack, which film is characterized by being electronically conducting and substantially refractory anodically, and (b) causing a film derived at least in part from said solution to be formed on said area which is anodic during at least part of the duty time of said stack (and means therefor) said film characterized by being substantially refractory anodically and electronically conducting.

대표청구항 ▼

A method for extending the useful anode life of an electrode in an electrodialysis stack which electrode comprises at least in part an area which is anodic during at least part of the operating time of said stack, which stack also comprises an electrode compartment containing said electrode, a count

A method for extending the useful anode life of an electrode in an electrodialysis stack which electrode comprises at least in part an area which is anodic during at least part of the operating time of said stack, which stack also comprises an electrode compartment containing said electrode, a counter-electrode in a counter-electrode compartment and interior compartments between said electrode compartment and said counter-electrode compartment, which method comprises: (a) introducing into said electrode compartment a solution capable of forming an electronically conducting layer which is substantially refractory anodically on said area which is anodic during at least part of the operating time of said stack, and (b) causing an electronically conducting, substantially anodically-refractory layer to be formed on said area which is anodic during at least part of the operating time of said stack, said layer being derived at least in part from said solution.