基本信息:
- 专利标题： 一种从冶金含镉烟尘中回收镉的方法及从镉-氨溶液中回收镉的装置
- 专利标题（英）：Method for recycling cadmium from metallurgical cadmium-contained dust and device for recycling cadmium from cadmium-ammonia solution
- 申请号：CN201810060163.7 申请日：2018-01-22
- 公开(公告)号：CN108220999A 公开(公告)日：2018-06-29
- 发明人： 杨建广 , 方喜 , 柴立元 , 闵小波 , 李陵晨 , 闫万鹏 , 丁龙 , 南天翔
- 申请人： 中南大学
- 申请人地址： 湖南省长沙市岳麓区麓山南路932号
- 专利权人： 中南大学
- 当前专利权人： 中南大学
- 当前专利权人地址： 湖南省长沙市岳麓区麓山南路932号
- 代理机构： 长沙市融智专利事务所
- 代理人： 袁靖
- 主分类号： C25C1/16
- IPC分类号： C25C1/16 ; C25C7/08 ; C22B7/02 ; C22B17/00 ; C25C7/00
The invention discloses a method for recycling cadmium from metallurgical cadmium-contained dust and a device for recycling cadmium from a cadmium-ammonia solution. The metallurgical cadmium-containeddust is subject to ammoniacal circular leaching, when the lead/cadmium molar ratio in the solution is smaller than 0.01, the circular leaching process is ended; after leaching is finished, liquid solution separation is carried out, and the cadmium-ammonia solution is obtained; the proper amount of vulcanizing agent is added to enable impurity ions in the cadmium-ammonia solution to be subject tovulcanization precipitation separation. After impurity removal, liquid is placed in an ultrasonic enhancing electric strengthening replacement cadmium extraction key device to be subject to efficientcadmium extraction, and high-grade sponge cadmium and zinc-ammonia solution can be obtained. The sponge cadmium can be directly used for briquetting distillation or fusion casting-electrolytic refining to obtain high-purity cadmium. The zinc- ammonia solution can be directly turned into an electric zinc system to produce electric zinc.
公开/授权文献:
- CN108220999B 一种从冶金含镉烟尘中回收镉的方法及从镉-氨溶液中回收镉的装置 公开/授权日：2019-11-12
IPC结构图谱:
| C | 化学；冶金 |
| --C25 | 电解或电泳工艺；其所用设备 |
| ----C25C | 电解法生产、回收或精炼金属的工艺；其所用的设备 |
| ------C25C1/00 | 由溶液电解法电解生产、回收或精炼金属 |
| --------C25C1/16 | .锌、镉或汞的 |