| 摘要 |
Alkali metal hydroxide solutions are pumped and concentrated by electrolysis of such solutions in the anode of a two-compartment hybrid cell comprising an anode compartment and a cathode compartment separated by a cation permeable diffusior 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 are 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. |
