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:
Feb. 14, 2012
Filed:
Feb. 12, 2010
Applicants:
Sang-soon Choi, Samcheok-si, KR;
Sang-yun Jung, Daejeon, KR;
Jeong-kyu Kim, Seoul, KR;
Yeong-dae Kim, Daejeon, KR;
Inventors:
Sang-Soon Choi, Samcheok-si, KR;
Sang-Yun Jung, Daejeon, KR;
Jeong-Kyu Kim, Seoul, KR;
Yeong-Dae Kim, Daejeon, KR;
Assignee:
LG Chem, Ltd., Seoul, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01F 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a method for preparing cerium carbonate that can improve yield and productivity of cerium carbonate, cerium carbonate powder, and a method for preparing cerium oxide using the same. The method for preparing cerium carbonate comprises the steps of mixing a cerium precursor and urea; and, elevating the temperature of the mixture to 50˜250° C. under solvent free condition to react the cerium precursor and urea.