SU1242194A1 - Method of selective extraction of cadmium - Google Patents
Method of selective extraction of cadmium Download PDFInfo
- Publication number
- SU1242194A1 SU1242194A1 SU853860307A SU3860307A SU1242194A1 SU 1242194 A1 SU1242194 A1 SU 1242194A1 SU 853860307 A SU853860307 A SU 853860307A SU 3860307 A SU3860307 A SU 3860307A SU 1242194 A1 SU1242194 A1 SU 1242194A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- extraction
- cadmium
- selective extraction
- mol
- carried out
- Prior art date
Links
- 238000000605 extraction Methods 0.000 title claims description 18
- 229910052793 cadmium Inorganic materials 0.000 title claims description 14
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 9
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 6
- -1 iodide ions Chemical class 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims 2
- LOXRGHGHQYWXJK-UHFFFAOYSA-N 1-octylsulfanyloctane Chemical compound CCCCCCCCSCCCCCCCC LOXRGHGHQYWXJK-UHFFFAOYSA-N 0.000 claims 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims 1
- 230000002378 acidificating effect Effects 0.000 claims 1
- 229910052740 iodine Inorganic materials 0.000 claims 1
- 239000011630 iodine Substances 0.000 claims 1
- 239000012535 impurity Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-M iodide Chemical compound [I-] XMBWDFGMSWQBCA-UHFFFAOYSA-M 0.000 description 1
- 229940006461 iodide ion Drugs 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Description
Изобретение относитс к способам извлечени кадми и может быть использовано в гидрометаллургии дл извлечени кадми из кислых растворов , а также в аналитической химии дл избирательного извлечени кадми при определении примесей в кадг мин высокой частоты инструментальными методами.The invention relates to methods for extracting cadmium and can be used in hydrometallurgy for extracting cadmium from acidic solutions, as well as in analytical chemistry for the selective extraction of cadmium in the determination of impurities in high frequency cad mines by instrumental methods.
Цель изобретени - повышение избирательности и степени извлечени кадми .The purpose of the invention is to increase the selectivity and the degree of extraction of cadmium.
Пример 1. Из водного раствора кадми в хлорной кислоте, мечег но го радиоизотопом - ° Cd, провод т экстракцию равным объемом неразбавленного диокстилсульфида в зависимости от концентрации кислоты и йодид-ионов. Полученные данные Гсм. табл. 1) показывают, что дп колиг- чественного извлечени кадми ( 95%) необходимо поддерживать кислотность 5-8 моль/л при равновесной концентрации йодид-ионов 0,005-0,05 моль/л. При концентрацииExample 1. From an aqueous solution of cadmium in perchloric acid, the sword of the radioisotope - ° Cd, extraction is carried out with an equal volume of undiluted dioxyl sulfide, depending on the concentration of the acid and iodide ions. The data obtained Gsm. tab. 1) show that dp of cadmium (95%) extraction, it is necessary to maintain the acidity of 5-8 mol / l at an equilibrium concentration of iodide ions of 0.005-0.05 mol / l. At concentration
0,б05 .0, b05.
0,00050.0005
0,00.10.00.1
0,0050,005
0,01 .0.01.
0,050.05
0,0010.001
0,010.01
0,00050.0005
0,00050.0005
0,0010.001
йодид-ионов выше извлечение кадми резко падает вследствие,образовани анионных комплексов.iodide ions above cadmium extraction drops sharply due to the formation of anionic complexes.
Предлагаемьй способ за одну стадию позвол ет повысить степень извлечени кадми почти вдвое по сравнению с известным способом.The proposed method at one stage can increase the degree of extraction of cadmium almost doubled compared with the known method.
Пример 2. В услови х количественного извлечени кадми (по примеру 1) провод т экстракцию элементов-примесей . Данные табл. 2 показывают , что в органическую фазу извлекаютс лишь шесть элементов: .медь, цинк, таллий, рений, галлий, свинец, т.е. почти вдвое меньше по сравнению с известным способом. Экстракци остальных элементов незначительна.Example 2. Under conditions of quantitative extraction of cadmium (as in Example 1), the extraction of impurity elements is carried out. The data table. 2 show that only six elements are extracted into the organic phase: copper, zinc, thallium, rhenium, gallium, lead, i.e. almost half as compared with the known method. Extraction of the remaining elements is negligible.
Таким образом, использование пред- 20 лагаемого способа позвол ет вдвое повысить степень извлечени кадми за одну „ступень экстракции (с 55% до 95%) и существенно повысить избирательность извлечени (вместо II эле- 2S ментов с. кадмием извлекаютс 6).Thus, the use of the proposed method allows to double the degree of cadmium extraction per one extraction step (from 55% to 95%) and significantly increase the selectivity of extraction (instead of II element 2S, cadmium is extracted 6).
ТаблицаTable
0,3 1,00.3 1.0
1,3 1,9 2,0 0,71.3 1.9 2.0 0.7
1,7 2,11.7 2.1
1,1 1,31.1 1.3
1,51.5
66,7 90,066.7 90.0
95,0 98,8 99,0 83,3 98,0 99,2 92,8 95,0 97,095.0 98.8 99.0 83.3 98.0 99.2 92.8 95.0 97.0
Концентрацию свободного йодид-иона трудно контролировать ввиду его окислени кислородом воздуха при высокой кислотности.The concentration of free iodide ion is difficult to control due to its oxidation by air oxygen at high acidity.
Таблица2Table 2
Продолжение табл.1Continuation of table 1
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU853860307A SU1242194A1 (en) | 1985-01-04 | 1985-01-04 | Method of selective extraction of cadmium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU853860307A SU1242194A1 (en) | 1985-01-04 | 1985-01-04 | Method of selective extraction of cadmium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1242194A1 true SU1242194A1 (en) | 1986-07-07 |
Family
ID=21164474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU853860307A SU1242194A1 (en) | 1985-01-04 | 1985-01-04 | Method of selective extraction of cadmium |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1242194A1 (en) |
-
1985
- 1985-01-04 SU SU853860307A patent/SU1242194A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Stary 5., Zeman А. J. Radioanal. Chem. 1979, т.51, № 1, p.63-69. Шабурова В.П., Малышева Т.А., Юделевич И.Г., Фед шина Е.А. Изв. СО АН СССР, сер.хим. наук. 1984, вып. 1, с. 92-96. * |
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