SU1604741A1 - Method of extracting europium from sulfate solutions - Google Patents
Method of extracting europium from sulfate solutions Download PDFInfo
- Publication number
- SU1604741A1 SU1604741A1 SU884622414A SU4622414A SU1604741A1 SU 1604741 A1 SU1604741 A1 SU 1604741A1 SU 884622414 A SU884622414 A SU 884622414A SU 4622414 A SU4622414 A SU 4622414A SU 1604741 A1 SU1604741 A1 SU 1604741A1
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- SU
- USSR - Soviet Union
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- europium
- vol
- amount
- irradiation
- recovery
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/20—Compounds containing only rare earth metals as the metal element
- C01F17/282—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/10—Preparation or treatment, e.g. separation or purification
- C01F17/17—Preparation or treatment, e.g. separation or purification involving a liquid-liquid extraction
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Изобретение относитс к способу извлечени европи из сернокислых растворов и позвол ет повысить степень извлечени европи и упростить процесс. В исходный сернокислый раствор, содержащий европий, ввод т изопропиловый спирт в количестве 5-7 об.% и формиат натри в количестве 15-17 об.%, после чего осуществл ют γ - облучение раствора, выпавший осадок отдел ют. Степень извлечени европи составл ет 98%. 1 табл.The invention relates to a method for recovering europium from sulphate solutions and allows for increasing the degree of europium recovery and simplifying the process. Isopropyl alcohol in an amount of 5-7 vol.% And sodium formate in an amount of 15-17 vol.% Is introduced into the initial sulphate solution containing europium, followed by γ-irradiation of the solution, and the deposited precipitate is separated. The recovery rate of europium is 98%. 1 tab.
Description
Изобретение относитс к способам извлечени европи из сернокислых растворов и может быть использовано в производстве получени чистых соединений европи .The invention relates to methods for the recovery of europium from sulphate solutions and can be used in the manufacture of pure europium compounds.
Цель изобретени - повышение степени извлечени европи и упрощение процесса за счет исключени необходимости операции прокачивани инертного газа.The purpose of the invention is to increase the degree of europium recovery and simplify the process by eliminating the need for a pumping inert gas.
Пример 1 (известный). В сернокислые европийсодержащие растворы с концентрацией Ea(III) 0,5 моль/л ввод т изо- СзНтОН (изопропиловый спирт) в количестве 10 об.%; содержащийс в растворах кислород удал етс продуванием инертным газом (аргоном). Пробирки емкостью 25 см, снабженные притертыми пробками, полностью заполн ют растворами и облучают при мощности дозы 1 Гр/с до достижени поглощенной дозы 60 кГр (минимальна доза, обеспечивающа максимальное извлечение ). После облучени осадок отфильтровывают , промывают и раствор ют в разбавленной HNOa дл последующего спектро- фотометрического определени . Степень извлечени составл ет 83%.Example 1 (known). Sulfuric europium-containing solutions with a concentration of Ea (III) of 0.5 mol / l are injected with iso-CzNOH (isopropyl alcohol) in an amount of 10 vol.%; oxygen contained in solutions is removed by flushing with an inert gas (argon). Tubes with a capacity of 25 cm, equipped with ground-in stoppers, are completely filled with solutions and irradiated at a dose rate of 1 Gy / s until the absorbed dose reaches 60 kGy (the minimum dose providing maximum extraction). After irradiation, the precipitate is filtered off, washed and dissolved in dilute HNOa for subsequent spectrophotometric determination. The recovery rate is 83%.
Пример 2. В исходные европийсодержащие растворы с концентрацией трехвалентного европи 0,01 моль/л добавл ют изо-СзНуОН в количестве 5 об.% и HCOONa в количестве 15об.%. Содержащийс в растворе кислород не удал ют. Облучение провод т в стекл нных ампулах о.бъемом 35- 40 см . Количество раствора в ампуле 20 мл. Облучение провод т на установке РХ М-у-100 при мощности дозы 1 Гр/с до достижени поглощенной дозы 35 кГр. После облучени осадок отфильтровывают. Количество извлеченного европи определ етс по остатку в растворе европи (III) спектрофо- тометрически на приборе «SPECORD - М40 и атомно-абсо рбционной спектрофото- метрией растворов, полученных при растворении выпавшего осадка. Степень извлечени европи составл ет 98%.Example 2. In the initial europium-containing solutions with a concentration of trivalent europium and 0.01 mol / l, iso-CzNuOH is added in an amount of 5 vol.% And HCOONa in an amount of 15 vol.%. The oxygen contained in the solution is not removed. The irradiation is carried out in glass ampoules with a volume of 35-40 cm. The amount of solution in a vial is 20 ml. The irradiation is carried out at the PXMy-100 facility at a dose rate of 1 Gy / s until the absorbed dose reaches 35 kGy. After irradiation, the precipitate is filtered off. The amount of recovered europium is determined by the residue in the europium (III) solution spectrophotometrically using an SPECORD-M40 instrument and atomic-absolute spectrophotometry of the solutions obtained by dissolving the precipitated precipitate. The recovery rate of europium is 98%.
П-римерыЗ-9. Провод т аналогично примеру 2, но при разных количествах изо- пропилового спирта, формиата натри и дозы облучени . Услови и результаты приведены в таблице.P-RomeryZ-9. It is carried out as in Example 2, but with different amounts of isopropyl alcohol, sodium formate, and radiation dose. Conditions and results are shown in the table.
При концентраци х пропилового спирта менее 5 об.%, формиата натри менее 15 об.% и поглощенной дозе менее 35 кГр степень извлечени европи снижаетс доWith a propyl alcohol concentration of less than 5 vol.%, Sodium formate less than 15 vol.% And an absorbed dose of less than 35 kGy, the recovery rate of europium decreases to
SS
(Л(L
О5O5
оabout
4 four
4four
уровн ниже, ч ем по известному способу (примеры 4, 6, 8).the level is lower than that by a known method (examples 4, 6, 8).
Увеличение, концентрации и пор-лбшеннбй лозы сверх за вленного нредела нецелесообразно , поскольку не приводит к дальнейшему увеличению степени извлечени европи .The increase in the concentration and pores of the vine above the stated limit is impractical because it does not lead to a further increase in the degree of europium recovery.
Таким образом, предлагаемый способ позвол ет повысить по сравнению с известным способом степень извлечени европи из растворов с 83,0 до 98%, а также упростить процесс за счет исключени необходимости в дополнительной операции прокачивани инертного газа.Thus, the proposed method allows to increase the degree of recovery of europium from solutions from 83.0 to 98%, as well as to simplify the process by eliminating the need for an additional inert gas pumping operation.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884622414A SU1604741A1 (en) | 1988-12-21 | 1988-12-21 | Method of extracting europium from sulfate solutions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884622414A SU1604741A1 (en) | 1988-12-21 | 1988-12-21 | Method of extracting europium from sulfate solutions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1604741A1 true SU1604741A1 (en) | 1990-11-07 |
Family
ID=21416106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU884622414A SU1604741A1 (en) | 1988-12-21 | 1988-12-21 | Method of extracting europium from sulfate solutions |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1604741A1 (en) |
-
1988
- 1988-12-21 SU SU884622414A patent/SU1604741A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Shastri L. V.. Mitfal S. P., Radiation chemical separation on europium from lanthanlde mixtures, Proc. Nucl. Ghem. and Radiochem, Varanoshi, 1983, p. 657- 661. * |
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