FIELD: metallurgy of rare and dispersed metals, chemical technology.
SUBSTANCE: invention relates to a method for extraction separation of tantalum and niobium. Method involves extraction separation of tantalum from niobium with organic solvent. As an organic solvent method involves using a mixture of methyl isobutyl ketone taken in the amount 40-80 vol.% with aliphatic (C7-C9)-alcohol taken in the amount 20-60 vol.%. At the extraction process tantalum transfers into organic phase and niobium - into aqueous phase. Then organic and aqueous phases are separated. Invention provides enhancing the extraction degree of tantalum into organic phase and to enhance the separation degree of tantalum and niobium in extraction.
EFFECT: improved separating method.
5 tbl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR EXTRACTIVE SEPARATION OF TANTALUM AND NIOBIUM FROM HYDROFLUORIDE-SULFATE ACIDIC SOLUTIONS | 2003 |
|
RU2245305C1 |
| METHOD OF PROCESSING OF LOPARITE CONCENTRATE | 2000 |
|
RU2182887C2 |
| METHOD OF PRODUCING HIGHLY PURE TANTALUM OXIDE FROM TANTALUM-CONTAINING SOLUTIONS | 2015 |
|
RU2611869C1 |
| METHOD FOR SEPARATION OF NIOBIUM AND TANTALUM | 2016 |
|
RU2670232C2 |
| METHOD OF PROCESSING LOPARITE CONCENTRATE | 2001 |
|
RU2211871C1 |
| METHOD FOR COLUMBITE CONCENTRATE PROCESSING | 2014 |
|
RU2576562C1 |
| METHOD FOR EXTRACTION OF NIOBIUM FROM CAKES FROM LEACHING COMPLEX RARE-METAL RAW MATERIAL OF COMPLEX COMPOSITION | 2019 |
|
RU2717421C1 |
| METHOD OF EXTRACTING GOLD FROM HYDROCHLORIC ACID SOLUTION | 2013 |
|
RU2542181C1 |
| TREATMENT METHOD OF MIXTURE OF NIOBIUM AND/OR TANTALUM AND TITANIUM OXIDES | 2012 |
|
RU2507281C1 |
| METHOD OF PRODUCING REFRACTORY METAL OXIDES FROM LAPARITE CONCENTRATE | 1999 |
|
RU2149912C1 |
