Process for electrolytically producing metallic oxide for ferrite
US4597957A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1985 |
| Grant date | Jul 1, 1986 |
| Priority date | — |
| Expiry date | Mar 4, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B1/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for electrolytically producing a metallic oxide for a ferrite comprising the steps of electrolyzing an inorganic ammonium salt solution of 2-20% containing 0.01-5% of fluoride compound as an electrode with metals or mixture of metals necessary for producing the ferrite as an anode and graphite as a cathode to produce the hydroxide of the metal used as the anode, oxidizing and separating the hydroxide, and then drying and calcining the hydroxide. Thus, a low silica metal oxide of uniform composition is produced by mixing the composition of a ferrite to be produced with iron and/or manganese or iron and/or manganese in case of producing the metal oxide for the ferrite, and electrolyzing various metal with the resultant mixture as an anode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.