FIELD: regeneration of noble metals. SUBSTANCE: operation of testing control of touchstones prepared of silicium-containing conducting material is carried out metals being applied on said material. Then mentioned above touchstones are placed into sulfuric solution of thiourea (thiourea and sulfuric acid content in it being 5-100 and 1-100 g/l respectively). Diffusion of metals is carried out at anode density of current 1-50 1-50 A/m2> Noble metals are isolated of solution with the help of electrolysis, cathode of porous conducting material being used. EFFECT: improves efficiency of the method. 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF REGENERATION OF PLATINUM GROUP METALS FROM TOUCHSTONES AFTER TESTING CONTROL OPERATIONS | 1992 |
|
RU2021383C1 |
| MATERIAL FOR PRODUCTION OF ASSAY STONE | 2003 |
|
RU2248336C2 |
| METHOD OF EXTRACTING GOLD AND SILVER FROM THIOCARBAMIDE SOLUTIONS BY ELECTROLYSIS | 0 |
|
SU770274A1 |
| METHOD OF EXTRACTION OF GOLD AND SILVER FROM POLYMETALLIC RAW MATERIAL | 2004 |
|
RU2258768C1 |
| METHOD OF EXTRACTION OF GOLD AND REGENERATION OF CATHODES | 2019 |
|
RU2743195C1 |
| METHOD OF SURFACE SCREENING OF CHEMICAL AND ELECTROCHEMICAL BATHS AGAINST ELECTROLYTE CARRY-OVER | 0 |
|
SU1767046A1 |
| METHOD OF EXTRACTING OF NOBLE METALS FROM WASTES OF RADIOELECTRONIC INDUSTRY | 2014 |
|
RU2553320C1 |
| METHOD FOR EXTRACTING GOLD FROM GOLD CONTAINING POLYMETALLIC MATERIALS | 2000 |
|
RU2181780C2 |
| METHOD OF PROCESSING ANTIMONY-BASED GOLD CONTAINING ALLOY | 2006 |
|
RU2377328C2 |
| METHOD FOR PROCESSING SECONDARY GOLD-CONTAINING MATERIAL TO PURE GOLD | 2001 |
|
RU2176279C1 |
