| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve the current efficiency of an electrolysis by consisting of anodes and cathodes of stainless steel plates of the same shape and partitioning catholyte spaces and anolyte spaces by diaphragms which exist between both plates. SOLUTION: The entire part vessel 1 of the electrolytic cell is partitioned in parallel by the plural diaphragms 10 and the partition plates. Two-fold stainless steel plates 11 are put on the respective plural partition plates. The catholyte and the anolyte are supplied to the cathode spaces and anode spaces partitioned by the diaphragms 10 and the partition plates. An electrolysis is effected by impressing voltage between the stainless steel cathode plate and anode plate disposed near both side walls of the entire part vessel 1. Since the diaphragms 19 exist, the univalent copper amine complex formed at the cathodes does not diffuse to the anode and reverse reaction does not arise. Since the two-folded stainless steel plates are easily liftable, there is no need for removing the contacts for power feeding at the time of peeling and recovering the copper from the electrodes. The voltage rise occurring in the diaphragms is lessened when the laminate of porous PTFE is used for the material of the diaphragms.</p> |
