发明申请
US20170349970A1 PROCESS FOR REMOVING PRECIOUS METAL FROM PRECIOUS METAL-CONTAINING CATALYST FORM BODIES
审中-公开
基本信息:
- 专利标题： PROCESS FOR REMOVING PRECIOUS METAL FROM PRECIOUS METAL-CONTAINING CATALYST FORM BODIES
- 申请号：US15523757 申请日：2015-10-12
- 公开(公告)号：US20170349970A1 公开(公告)日：2017-12-07
- 发明人： Christoph Roehlich , Vasco Thiel , Stefanie Fuchs-Alameda , Jan Schapp , Steffen Voss
- 申请人： Heraeus Deutschland GmbH & Co. KG
- 优先权： EP14192464.7 20141110
- 国际申请： PCT/EP2015/073542 WO 20151012
- 主分类号： C22B3/00
- IPC分类号： C22B3/00 ; B01J23/96 ; B01J21/04 ; B01J23/44 ; C22B11/06 ; B01J38/68
摘要：
Process for removing precious metal from precious metal-containing catalyst form bodies comprising form bodies and precious metal, whereby the precious metal to be removed is at least one precious metal selected from the group consisting of Au, Ag, Pd, Pt, Ir, Rh, Ru, Os, and Re, comprising the steps of: (a) producing a mixture of precious metal-containing catalyst form bodies in at least one mineral acid that is at least 1N; (b) supplying inert or oxidising gas into the mixture containing noble metal-containing catalyst form bodies and mineral acid; (c) introducing at least one oxidation agent, in solid or liquid form, into the mixture containing noble metal-containing catalyst form body and mineral acid; and (d) separating the form bodies from the liquid.
公开/授权文献:
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 |
| ------C22B3/00 | 用湿法从矿石或精矿中提取金属化合物 |