| 发明名称 | Production method for high-purity calcite and ammonium sulphate by using gypsum | ||
| 摘要 | 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. | ||
| 申请公布号 | US9200347(B2) | 申请公布日期 | 2015.12.01 |
| 申请号 | US201214232833 | 申请日期 | 2012.07.13 |
| 申请人 | Korea Institute of Geoscience and Mineral Resources | 发明人 | Jang Young Nam;Ryu Kyung Won;Lee Myung Kyu |
| 分类号 | C01F11/18;C22B26/20;B09B3/00;C01C1/24 | 主分类号 | C01F11/18 |
| 代理机构 | Novick, Kim & Lee, PLLC | 代理人 | Novick, Kim & Lee, PLLC ;Kim Jae Youn |
| 主权项 | 1. A method for producing high-purity calcite and ammonium sulfate having a purity of at least 95%, comprising: mixing water, ammonia water and gypsum to prepare a slurry and performing a carbonation reaction by adding a predetermined amount of carbon dioxide to the slurry, wherein an initial reaction temperature of the slurry is 5 to 18° C. | ||
| 地址 | Daejeon KR | ||