FIELD: chemistry.
SUBSTANCE: method involves pulping a concentrate of platinum and rhenium sulphides in aqueous ammonia solution. The pulp is then treated with hydrogen peroxide solution; the reaction mixture is acidified with sulphuric acid, heated and then aged, and the precipitate of platinum compounds is separated from the rhenium solution by filtering the reaction mixture. The pulp is treated with hydrogen peroxide solution at temperature of 25-45°C; the reaction mixture is acidified with sulphuric acid until achieving pH 0.2-2.0 without preliminary separation of the undissolved precipitate. Before filtering, the reaction mixture is further treated with hydrogen peroxide solution.
EFFECT: enabling separation of platinum and rhenium at the step for extracting rhenium from a sulphide concentrate.
1 tbl, 1 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD OF EXTRACTING RHENIUM FROM PLATINUM AND RHENIUM SULPHIDE CONCENTRATE | 2011 |
|
RU2448177C1 |
METHOD FOR PROCESSING IRON-BASED CONCENTRATES CONTAINING PLATINUM GROUP METALS | 2019 |
|
RU2707457C1 |
METHOD FOR SEPARATING RUTHENIUM FROM CONCENTRATES CONTAINING PRECIOUS METALS | 2021 |
|
RU2758957C1 |
METHOD FOR PROCESSING CONCENTRATES BASED ON BASE ELEMENTS CONTAINING RARE METALS OF THE PLATINUM GROUP | 2021 |
|
RU2773294C1 |
METHOD FOR PROCESSING OF IRON COLLECTOR OF PLATINUM METALS | 2021 |
|
RU2778436C1 |
METHOD FOR PROCESSING MATERIALS CONTAINING PRECIOUS METALS AND IRON | 2020 |
|
RU2750735C1 |
COMPLEX PROCESSING METHOD OF RESIDUES OF DOMANIC FORMATIONS | 2013 |
|
RU2547369C2 |
METHOD OF EXTRACTING AND CLEANING RHENIUM FROM SOLUTIONS FROM PROCESSING HEAT-RESISTANT ALLOYS | 2010 |
|
RU2437836C1 |
METHOD FOR PRODUCING REFINED PALLADIUM | 2021 |
|
RU2775785C1 |
METHOD OF EXTRACTING RHENIUM AND PLATINUM METALS FROM SPENT CATALYSTS ON ALUMINIUM OXIDE SUPPORTS | 2013 |
|
RU2525022C1 |
Authors
Dates
2013-08-20—Published
2012-05-25—Filed