FIELD: chemistry.
SUBSTANCE: invention relates to the metallurgy of rare and noble metals, particularly to processing spent platinum-rhenium catalysts and can be used in producing rhenium compounds when extracting rhenium from catalysts on aluminium oxide supports. The method involves desorption of rhenium from a saturated weakly basic anionite with ammonia solution, evaporating the ammonia solution while adding sodium sulphite, adding calcium chloride to the evaporated solution, cooling the pulp and filtering the crude ammonium perrhenate precipitate, which is recrystallised from distilled water.
EFFECT: high quality of ammonium perrhenate due to low content of impurities of platinum, sodium, sulphur and other base elements.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF AMMONIUM PERRHENATE PREPARATION | 2007 |
|
RU2355640C2 |
| PROCEDURE FOR EXTRACTION OF RHENIUM FROM DEAD CATALYST ON SUPPORTERS OUT OF ALUMINIUM OXIDE CONTAINING PLATINUM METALS AND RHENIUM | 2010 |
|
RU2421532C1 |
| METHOD OF PROCESSING PLATINUM-RHENIUM CATALYSTS | 2006 |
|
RU2311466C1 |
| METHOD OF EXTRACTING AND CLEANING RHENIUM FROM SOLUTIONS FROM PROCESSING HEAT-RESISTANT ALLOYS | 2010 |
|
RU2437836C1 |
| METHOD OF EXTRACTING RHENIUM FROM MOLYBDENUM-CONTAINING SOLUTIONS | 2010 |
|
RU2427535C1 |
| METHOD OF EXTRACTING RHENIUM AND PLATINUM METALS FROM SPENT CATALYSTS ON ALUMINIUM OXIDE SUPPORTS | 2013 |
|
RU2525022C1 |
| METHOD OF PREPARING PLATINUM-RHENIUM CATALYST FOR REFORMING OF GASOLINE FRACTIONS | 2000 |
|
RU2177826C1 |
| METHOD OF RECOVERING PLATINUM AND RHENIUM FROM TREATED PLATINUM/RHENIUM CATALYST | 1996 |
|
RU2100072C1 |
| METHOD OF EXTRAXTION OF RHENIUM AND/OR PLATINUM FROM DEACTIVATED CATALYSTS WITH ALUMINIUM-OXIDED CARRIER | 2009 |
|
RU2398899C1 |
| METHOD OF PRODUCING HIGH-PURITY VANADIUM PENTOXIDE | 2023 |
|
RU2817727C1 |
