FIELD: metallurgy.
SUBSTANCE: procedure for extraction of rhenium consists in leaching rhenium from catalyst with diluted solution of sulphuric acid, in sorption of rhenium on low-base anionite and in its de-sorption with solution of ammonia. Also, sodium thiosulphate at amount of 0.002-0.01 mole/l is added into diluted solution of sulphuric acid before rhenium leaching. Upon rhenium extraction non-dissolved residue is directed to extraction of platinum by known procedures.
EFFECT: reduced expenditures for extraction and purification of rhenium; reduced amount of platinum in material-in-process due to reduced extraction of platinum into solution of selective rhenium leaching.
1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF AMMONIUM PERRHENATE PREPARATION | 2007 |
|
RU2355640C2 |
| METHOD OF PRODUCING AMMONIUM PERRHENATE | 2012 |
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| METHOD OF EXTRACTING RHENIUM AND PLATINUM METALS FROM SPENT CATALYSTS ON ALUMINIUM OXIDE SUPPORTS | 2013 |
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| METHOD OF RECOVERING PLATINUM AND RHENIUM FROM TREATED PLATINUM/RHENIUM CATALYST | 1996 |
|
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| METHOD OF EXTRACTING RHENIUM FROM MOLYBDENUM-CONTAINING SOLUTIONS | 2010 |
|
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| METHOD OF COMBINED RECOVERY OF PLATINUM AND RHENIUM FROM SPENT PLATINUM-RHENIUM CATALYSTS | 1999 |
|
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| METHOD FOR EXTRACTING RHENIUM FROM SOLUTIONS | 2015 |
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| METHOD OF EXTRACTING RHENIUM FROM URANIUM SOLUTIONS | 2016 |
|
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| METHOD OF PROCESSING CATALYSTS CONTAINING PLATINUM METALS AND RHENIUM ON ALUMINUM OXIDE CARRIERS | 2005 |
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| METHOD FOR RECOVERING RHENIUM FROM RHENIUM-CONTAINING MATERIALS | 0 |
|
SU973483A1 |
