基本信息:
- 专利标题： 一种溶剂萃取法高效富集回收贵金属铂、钯的工艺
- 专利标题（英）：Process for efficiently enriching and recovering precious metals platinum and palladium by using solvent extraction method
- 申请号：CN201410241155.4 申请日：2014-05-31
- 公开(公告)号：CN104004921A 公开(公告)日：2014-08-27
- 发明人： 席晓丽 , 聂祚仁 , 孙晓凯 , 马立文 , 宋姗姗 , 张力文
- 申请人： 北京工业大学
- 申请人地址： 北京市朝阳区平乐园100号
- 专利权人： 北京工业大学
- 当前专利权人： 北京工业大学
- 当前专利权人地址： 北京市朝阳区平乐园100号
- 代理机构： 北京思海天达知识产权代理有限公司
- 代理人： 刘萍
- 主分类号： C22B11/00
- IPC分类号： C22B11/00 ; C22B3/26
The invention relates to a process for efficiently enriching and recovering precious metals platinum and palladium by using a solvent extraction method. The process is implemented by taking isoamylol as an extraction agent and 2-thiourea as an extracting and complexing aid. By virtue of adding 2-thiourea into an aqueous phase to act with platinum and palladium and extracting isoamylol as an extraction agent into an organic phase, a purpose that precious metals and base metals are separated and extracted and precious metals platinum and palladium are enriched is achieved. According to the invention, the separation of precious metals and base metals can be realized, thereby improving the enrichment and recovery rates of precious metals platinum and palladium; used reagents are low in cost, so that the process has a small impact on the environment; the process is simple in flow; the process is a new efficient extraction and enrichment system for precious metals.
公开/授权文献:
- CN104004921B 一种溶剂萃取法高效富集回收贵金属铂、钯的工艺 公开/授权日：2016-03-02
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 |
| ------C22B11/00 | 贵金属的提炼 |