The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 2009
Filed:
Dec. 20, 2007
Hee Dong Jang, Daejeon, KR;
Yong Jae Suh, Daejeon, KR;
Dae Sup Kil, Daejeon, KR;
Kee Kahb Koo, Seoul, KR;
Jae Kyeong Kim, Seoul, KR;
Han Sang OH, Jeju-si, KR;
Hee Dong Jang, Daejeon, KR;
Yong Jae Suh, Daejeon, KR;
Dae Sup Kil, Daejeon, KR;
Kee Kahb Koo, Seoul, KR;
Jae Kyeong Kim, Seoul, KR;
Han Sang Oh, Jeju-si, KR;
Korea Institute of Geoscience & Mineral Resources, Daejeon, KR;
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.