| 摘要 |
Alkali metal hydroxide solutions such as chloralkali cell liquors are concentrated by electrolysis of such solutions in a two-compartment hybrid cell comprising an anode compartment and a cathode compartment separated by a cation permeable diffusion barrier; or in a three-compartment cell comprising an anode compartment, a cathode compartment, and a central compartment defined on the anode side by a cation permeable diffusion barrier and on the cathode side by a diaphragm. To enable operation, gaseous hydrogen is supplied to the anode, oxygen to the cathode and an aqueous media receptive to alkali metal ions to the cathode and, if used, the central compartment. A plurality of the hybrid cells may be operated in hydrodynamic series. The hybrid cell can generate electrical power that may be used to supply part of the power required by a chloralkali cell the liquor of which is being concentrated in the hybrid cell. |
