发明申请
US20220064759A1 LOW-COST SELECTIVE PRECIPITATION CIRCUIT FOR RECOVERY OF RARE EARTH ELEMENTS FROM ACID LEACHATE OF COAL WASTE
有权
基本信息:
- 专利标题： LOW-COST SELECTIVE PRECIPITATION CIRCUIT FOR RECOVERY OF RARE EARTH ELEMENTS FROM ACID LEACHATE OF COAL WASTE
- 申请号：US17470690 申请日：2021-09-09
- 公开(公告)号：US20220064759A1 公开(公告)日：2022-03-03
- 发明人： Wencai Zhang , Rick Q. Honaker
- 申请人： University of Kentucky Research Foundation
- 申请人地址： US KY Lexington
- 专利权人： University of Kentucky Research Foundation
- 当前专利权人： University of Kentucky Research Foundation
- 当前专利权人地址： US KY Lexington
- 主分类号： C22B59/00
- IPC分类号： C22B59/00 ; C22B3/22 ; C22B3/44
摘要：
The present invention concerns a process of selective precipitation for the purpose of recovering rare earth elements from acidic media derived from coal and coal byproducts via two main steps of sequential precipitation and selective precipitation. An intermediary step of re-precipitation can be included to further increase RRE concentrations, as well as improve contaminant metal removal.
IPC结构图谱:
| C | 化学；冶金 |
| --C22 | 冶金（铁的冶金入C21）；黑色或有色金属合金；合金或有色金属的处理 |
| ----C22B | 金属的生产或精炼；原材料的预处理 |
| ------C22B59/00 | 稀土金属的提取 |