FIELD: waste-free hydrometallurgy of noble metals; recovery of metals from used catalysts on carriers. SUBSTANCE: proposed method includes heat treatment under definite conditions. Heat treatment is conducted at temperature of 450 to 650 C, after which heat treatment at temperature of 700 to 1200 C is performed in reducing or oxidizing medium. EFFECT: increased degree of recovery of noble metals; enhanced purity. 4 cl, 1 tbl, 14 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF REWORKING USED SILVER CATALYSTS FOR OBTAINING FINE SILVER OR SOLUTIONS OF ITS COMPOUNDS SUITABLE FOR PREPARATION OF CATALYSTS (VERSIONS) | 1999 |
|
RU2154687C1 |
| METHOD OF OBTAINING ACTIVE ALUMINIUM OXIDE | 2011 |
|
RU2473468C1 |
| PROCESS OF RECOVERY OF NOBLE METALS AND PLANT FOR ITS REALIZATION | 1997 |
|
RU2119964C1 |
| REGENERATION METHOD OF MOLYBDENUM FROM WASTE SOLUTION FOR ETCHING OF MOLYBDENUM CORE IN MANUFACTURING OF LIGHT BULBS AND ELECTRONIC DEVICES AND INSTALLATION FOR ITS IMPLEMENTATION | 2008 |
|
RU2376396C1 |
| PROCESS FOR RECOVERING NOBLE METALS FROM ORES, WASTE AND BENEFICATION AND HYDROMETALLURGY BY-PRODUCTS | 1992 |
|
RU2031189C1 |
| CAVITATION GENERATOR | 2007 |
|
RU2346733C1 |
| HIGH-SILICA CARRIER, HETEROGENEOUS REACTION CATALYST AND METHOD OF PREPARATION THEREOF | 1999 |
|
RU2160156C1 |
| METHOD FOR PREPARATION OF BIMETALLIC CATALYST OF REDOX PROCESSES IN NITRIC ACID MEDIA | 2015 |
|
RU2598944C1 |
| METHOD OF EXTRACTING SILVER FROM SPENT PHOTOGRAPHIC SOLUTIONS, WASHING AND SEWAGE WATERS | 1999 |
|
RU2165468C1 |
| METHOD FOR RECOVERING CONCENTRATES OF NON-FERROUS AND NOBLE METALS FROM OXIDIZED FERRUGINEOUS MATERIALS | 0 |
|
SU996479A1 |
