Process for preparing a ceric ion-containing aqueous acid solution
US5385648A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1993 |
| Grant date | Jan 31, 1995 |
| Priority date | — |
| Expiry date | Jul 22, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C201/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
In processes for preparing a ceric ion-containing 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 solution which comprises making at least one heterocyclic compound selected from the group consisting of five-membered heteromonocyclic compounds having substituent(s), six-membered heteromonocyclic compounds having substituent(s) and condensed heteropolycyclic compounds exist in the cerous ion-containing aqueous acid solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.