Invention Grant
US09505629B2 Method of preparing calcium carbonate using direct carbonation reaction
有权
使用直接碳酸化反应制备碳酸钙的方法
- Patent Title: Method of preparing calcium carbonate using direct carbonation reaction
- Patent Title (中): 使用直接碳酸化反应制备碳酸钙的方法
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Application No.: US14461201Application Date: 2014-08-15
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Publication No.: US09505629B2Publication Date: 2016-11-29
- Inventor: Kyungsun Song , Young-Nam Jang , Soo-Chun Chae
- Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES
- Applicant Address: KR Daejeon
- Assignee: Korea Institute of Geoscience and Mineral Resources
- Current Assignee: Korea Institute of Geoscience and Mineral Resources
- Current Assignee Address: KR Daejeon
- Agency: Lewis Roca Rothgerber Christie LLP
- Priority: KR10-2013-0097853 20130819; KR10-2013-0114489 20130926
- Main IPC: C01F11/18
- IPC: C01F11/18 ; C01C1/24

Abstract:
Disclosed is a method of preparing calcium carbonate using a direct carbonation reaction. The method includes dissolving fuel gas desulfurization gypsum into an ammonia solution, performing a filtering process after making a carbonation reaction by feeding carbon dioxide into the ammonia solution in which the fuel gas desulfurization gypsum is dissolved, and performing a filtering process after precipitating the calcium carbonate by maintaining a filtered solution in a stationary state.
Public/Granted literature
- US20150050206A1 METHOD OF PREPARING CALCIUM CARBONATE USING DIRECT CARBONATION REACTION Public/Granted day:2015-02-19
Information query
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