C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
C25B 3/02 (2006.01) C07C 46/04 (2006.01) C07C 205/46 (2006.01) C25B 1/00 (2006.01)
Patent
CA 2100930
Abstract of the Disclosure In processes for preparing a ceric ion-contain ing aqueous acid solution by electrolytically oxidizing cerous ions in a cerous ion-containing aqueous acid solution using a diaphragm-free electrolytic bath having no diaphragm between the anode and the cathode, a process for preparing a ceric ion-containing aqueous acid solu- tion which comprises making at least one heterocyclic compound selected from the group consisting of five-mem- bered heteromonocyclic compounds having substituent(s), six-membered heteromonocyclic compounds having substi- tuent(s) and condensed heteropolycyclic compounds exist in the cerous ion-containing aqueous acid solution.
Ikeda Noriaki
Kizu Yasuhiko
Sugishima Noboru
Yamamoto Koichi
Nippon Shokubai Co. Ltd.
Smart & Biggar
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