Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2007-12-20
2009-06-23
Gonzalez, P. Nazario (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C556S146000
Reexamination Certificate
active
07550618
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.
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Jang Hee Dong
Kil Dae Sup
Kim Jae Kyeong
Koo Kee Kahb
Oh Han Sang
Gonzalez P. Nazario
Korea Institute of Geoscience & Mineral Resources
The Webb Law Firm
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