グルコン酸石灰の電解製造に関する研究 (第3報) 製造試驗電解

抄録

In continuation of the experiments reported in I and II, experimental manufacture was carried out of calcium gluconate from glucose obtained electrolytically by the use of the closed, forced-circulation type metallic electrolytic cell. As a result, it has been established that the time of electrolysis was completed within a few hours, as expected. The use of easily corrosive copper as the cathode and a cooling wall, showed the loss of the electrolytic cell to be negligible. It was also proved, by obtaining J. P. quality calcium gluconate after two recrystallizations, that Cu ion occluded in the preparation is also negligible. Satisfactory results were also obtained on mechanical problems, such as stirring, cooling, etc., and the loss of bromine was also lowered far below that in the open-type electrolytic cell.
It could, therefore, be concluded that this new method using experimental electrolytic cell can be used in practical application. In the event of the industrialization of this method to continuous production, the inside walls of the electrolytic cell could be lined or plated with silver, and, if the recovery of bromine from waste gas can be carried out, it would offer an advantageous method over the classic method.