FIELD: technological processes.
SUBSTANCE: invention relates to sorption extraction of valuable elements from chloride solutions and can be used for sorption of platinum ions from solutions of different composition, in particular from solutions of processing of copper-nickel sludge. Method involves contacting a chloride solution with a sorbent in form of a sorbent from silica gel with chemically grafted polyethyleneimine, sorption and subsequent elution of platinum.
EFFECT: invention increases degree of extraction and selectivity of extraction of platinum ions, separates platinum from rhodium with high stability of operation of sorbents.
5 cl, 8 tbl, 11 ex
| Title | Year | Author | Number |
|---|---|---|---|
| SORBENT AND ITS USE FOR EXTRACTION OF PALLADIUM IONS | 2019 |
|
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| METHOD FOR EXTRACTING PLATINUM, PALLADIUM AND GOLD FROM TECHNOLOGICAL SOLUTIONS | 2021 |
|
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| MODIFIED SILICA SORBENT TO BE APPLIED FOR PALLADIUM ION RECOVERY | 2008 |
|
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| METHOD FOR SEPARATING PLATINUM (II, IV), COPPER (II), AND ZINC (II) IN HYDROCHLORIC ACID SOLUTIONS | 2016 |
|
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| METHOD OF PRODUCING MODIFIED SORBENT OF PLATINUM METALS | 2012 |
|
RU2491990C1 |
| METHOD OF SEPARATING PLATINUM (II, IV) AND PALLADIUM (II) FROM SILVER (I), IRON (III) AND COPPER (II) IN HYDROCHLORIC ACID SOLUTIONS | 2019 |
|
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| METHOD FOR SEPARATNG PLATINUM (II, IV) AND IRON (III) IN HYDROCHLORIC ACID SOLUTIONS | 2015 |
|
RU2610185C2 |
| METHOD FOR EXTRACTION OF PALLADIUM (II) FROM WASTED CATALYSTS | 2010 |
|
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| METHOD OF PALLADIUM EXTRACTION BY POLYSILOXANE | 2016 |
|
RU2625205C1 |
| METHOD OF SEPARATING PLATINUM (II, IV), RHODIUM (III) AND NICKEL (II) IN CHLORIDE SOLUTIONS | 2013 |
|
RU2527830C1 |
