Abstract
Disclosed herein is a method for extracting precious metals from supported catalysts. The precious metal in one embodiment is rhodium. The supported catalyst may be from equipment, such as a used catalytic converter. The method is carried out at low temperature, and does not require harsh conditions, such as the use of a strong acid. The method involves contacting the catalytic material with a polar molecule and a reactive gas.
| Original language | English (US) |
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| U.S. patent number | 11427887 |
| Filing date | 11/26/18 |
| State | Published - Aug 30 2022 |