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:
Dec. 01, 2015
Filed:
Jul. 13, 2012
Applicants:
Young Nam Jang, Daejeon, KR;
Kyung Won Ryu, Daejeon, KR;
Myung Kyu Lee, Daejeon, KR;
Inventors:
Assignee:
Korea Institute of Geoscience and Mineral Resources, Daejeon, KR;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C01F 11/18 (2006.01); C22B 26/20 (2006.01); B09B 3/00 (2006.01); C01C 1/24 (2006.01);
U.S. Cl.
CPC ...
C22B 26/20 (2013.01); B09B 3/00 (2013.01); B09B 3/0041 (2013.01); C01C 1/24 (2013.01); C01F 11/18 (2013.01); C01P 2002/72 (2013.01); C01P 2002/88 (2013.01);
Abstract
Provided is a recycling method for producing calcite and ammonium sulfate having a high purity of at least 95% and generated by means of a carbonation reaction for fixing carbon dioxide inside the crystal structure of a mineral, and in which waste gypsum is reacted with carbon dioxide, which is a greenhouse gas, such that the carbon dioxide is fixed as a stable mineral, and high-purity calcite and ammonium sulfate are produced as resultant products.