Preparation of iron(II) acetate powder from a low grade magnetite
US7550618B2 · kind B2 · utility
1Cited by
3References
10Claims
0Family size
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Key dates
| Filing date | Dec 20, 2007 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Dec 20, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/412
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a preparation of iron(II) acetate powder from low grade magnetite and comprises the following steps: (a) adding organic acid to low grade magnetite powder to obtain iron solution; (b) adding hydroxide to the iron solution to obtain iron hydroxide; and (c) adding acetic acid to the iron hydroxide, thereby obtaining iron(II) acetate. According to the present invention, it is possible to obtain high purity iron(II) acetate using low grade magnetite and there are advantages of mass producible environmentally-friendly simple process and prevention of corrosion of facilities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.