Preparation method and application of magnetic iron oxide and desulfurizer containing the magnetic iron oxide as active component
US9659692B2 · kind B2 · utility
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Key dates
| Filing date | May 21, 2012 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | Sep 27, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2002/72
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of preparing magnetic iron oxide Fe21.333O32, which includes the steps of preparing a solid green rust and calcining the solid green rust to obtain the magnetic iron oxide Fe21.333O32. Also provided is the application of magnetic iron oxide Fe21.333O32 as an active material in desulfurization at a medium temperature. Also provided is a desulfurizer which uses magnetic iron oxide Fe21.333O32 and the application thereof. The present preparation method has simple steps and a short production period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.