FIELD: technology of non-ferrous, rare and trace rare metals.
SUBSTANCE: proposed method includes extraction and separation of arsenic by organic extracting agent. Extracting agent is prepared from mixture of dialkyl methyl phosphonate in the amount of 40-70% with trialkyl amine in the amount of 20-30 vol-% and inert diluting agent in the amount of 10-30%. At extraction, arsenic changes to organic phase.
EFFECT: increased degree of extraction of arsenic (+5); enhanced selectivity and economical efficiency.
5 tbl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF EXTRACTION OF RHENIUM FROM ACID SOLUTIONS | 2008 |
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| METHOD FOR PROCESSING SULFURIC ACID SOLUTION CONTAINING IMPURITY ELEMENTS | 2016 |
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| METHOD OF RECOVERING INDIUM FROM SULFATE ZINC SOLUTIONS | 2003 |
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| EXTRAGENT BASED ON PARTIALLY FLUORINATED TRIALKYLAMINE AND METHOD FOR EXTRACTION OF METALS AND ACIDS FROM WATER-SALT SOLUTIONS | 2017 |
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| METHOD FOR EXTRACTING INDIUM FROM SULPHURIC ACID SOLUTIONS | 2022 |
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