Reduced iron production method using electrowinning method, and reduced iron produced thereby
US10718058B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2017 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | May 30, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C7/005
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A reduced iron production method using an electrowinning method and reduced iron is provided. The method includes, preparing a mixture by mixing, a solid electrolyte containing sodium peroxide (Na2O2) and boron oxide (B2O3), with iron oxide (Fe2O3); and putting the mixture in an electrowinning device provided with an anode and an insoluble cathode and heating to form a molten oxide and then applying a voltage to the anode and the cathode to form iron on the cathode.Therefore, by reducing iron oxide through an electrowinning method, a reduced iron in a pure iron state can be obtained. Although it is very difficult to obtain pure iron by refining an iron ore, by using the electrowinning method in which the composition of an electrolyte is controlled and electrolysis conditions are controlled, reduced iron that is pure can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.