SU1551653A1 - Method of obtaining powder-like lithium and yttrium double fluoride - Google Patents
Method of obtaining powder-like lithium and yttrium double fluoride Download PDFInfo
- Publication number
- SU1551653A1 SU1551653A1 SU874375314A SU4375314A SU1551653A1 SU 1551653 A1 SU1551653 A1 SU 1551653A1 SU 874375314 A SU874375314 A SU 874375314A SU 4375314 A SU4375314 A SU 4375314A SU 1551653 A1 SU1551653 A1 SU 1551653A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- yttrium
- lithium
- product
- fluorides
- nitrates
- Prior art date
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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
- C01F17/30—Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6
- C01F17/36—Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6 halogen being the only anion, e.g. NaYF4
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Изобретение относитс к способам получени соединени LIYF4 и позвол ет сократить длительность процесса. К смеси карбонатов, хлоридов или нитратов иттри и лити в мольном соотношении Y:LI=1:(1,5-1,7) добавл ют концентрированную фтористоводородную кислоту с избытком 9,4-32,8% от теоретически необходимого количества дл перевода исходных соединений во фториды, продукт спекают при 400-500°С, отмывают последовательно концентрированной азотной кислотой и водой и сушат. Перед сушкой продукт обрабатывают этиловым спиртом. Длительность способа по сравнению с прототипом сокращаетс в 24 раза. 1 з.п.ф-лы.The invention relates to methods for producing the compound LIYF 4 and reduces the processing time. To a mixture of yttrium and lithium carbonates, chlorides or nitrates in a molar ratio of Y: LI = 1: (1.5-1.7) is added concentrated hydrofluoric acid with an excess of 9.4-32.8% of the theoretically required amount for transferring the original compounds in fluorides, the product is sintered at 400-500 ° C, washed sequentially with concentrated nitric acid and water and dried. Before drying, the product is treated with ethyl alcohol. The duration of the method compared with the prototype is reduced by 24 times. 1 hp ff.
Description
Изобретение относитс к способам получени фторидов редкоземельных и щелочных металлов, которые могут быть использованы в лазерной технике.The invention relates to methods for producing rare earth and alkali metal fluorides, which can be used in laser technology.
Целью изобретени вл етс сокращение длительности процесса.The aim of the invention is to reduce the duration of the process.
Пример 1. Берут 5,0 г Y2(C03V ЗН20 ХЧ 1 и 1,35 г Li2C03 ОСЧ. Соотношение иттри и лити составл ет 1:1,5. Перемешивают, добавл ют 7,0 мл HF, что на 0,6 мм или на Э,% превышает необходимое количество дл привода карбонатов во фториды . Тигель со смесью накрывают крышкой , в течение 1 ч поднимают температуру до 500°С. Спекают смесь в течение 5 ч. Спек легко рассыпаетс в порошок: примесь LiF отмывают 50 мл концентрированной азотной кислоты водой до рН 6-7 и 10 мл этилового спирта . Сушат продукт при 120°С в течечие 2 ч. Получают U,Об г LiYF4. Выход 99,6/;.Example 1. Take 5.0 g of Y2 (C03V ЗН20 ХЧ 1 and 1.35 g of Li2C03 OCC. The ratio of yttrium and lithium is 1: 1.5. Mix 7.0 ml of HF, which is 0.6 mm or by% exceeds the required amount to drive carbonates to fluorides. The crucible with the mixture is covered with a lid, the temperature is raised to 500 ° C for 1 hour, the mixture is sintered for 5 hours. nitric acid with water to a pH of 6-7 and 10 ml of ethyl alcohol.The product is dried at 120 ° C for 2 h. U, About g LiYF4 is obtained.
Пример 2. Ведут процесс в услови х примера 1, но с добавкой 8,6 мл HF, что на 2,1 мл или 32,8% превышает необходимый расход кислоты дл образовани фторидов. Спекание ведут при 50ЙГ. Выход продукта 99,8.Example 2. The process is carried out under the conditions of example 1, but with the addition of 8.6 ml of HF, which is 2.1 ml or 32.8% higher than the required acid consumption for the formation of fluorides. Sintering is carried out at 50JG. The product yield is 99.8.
Длительность СПРКЭНИЯ 6 ч, сушки 2 ч.Duration SPR. 6 h, drying 2 h.
П р и м е р 3. В услови х примера 1, но с использованием хлоридов ҐС1з-6,95НгО и LiCl-1,25HaO получают продукт с выходом 99,65. Длительность спекани 5 ч, сушки 2 ч.EXAMPLE 3 Under the conditions of Example 1, but using the chlorides ҐC1-6.95HgO and LiCl-1.25HaO, the product is obtained with a yield of 99.65. The duration of sintering 5 hours, drying 2 hours
Пример. В услови х примера 1, но с использованием нитратов Y(NOj}3- 6H2U и получают продукт с выходом 99,В/ . Длительность спекани 6 ч, сушки 2 ч.Example. Under the conditions of Example 1, but using Y nitrates (NOj} 3-6H2U, the product is obtained with the yield 99, V /. Sintering time is 6 hours, drying is 2 hours.
елate
СПSP
3535
СЛSL
0000
Пример 5. В услови х примера 1 ведут процесс при соотношении Y:Li 1:1,7 и температуре спекани 400°С. Длительность спекани 6 ч, сушки 2 ч.Example 5. Under the conditions of Example 1, the process is conducted at a Y: Li ratio of 1: 1.7 and a sintering temperature of 400 ° C. The duration of sintering 6 hours, drying 2 hours
По сравнению с известным способом, достигаетс сокращение времени синтеза в 2 раза, процесс осуществл етс при более низкой температуре и/не требует наличи вакуума или инертной атмосферы.Compared with the known method, the synthesis time is reduced by 2 times, the process is carried out at a lower temperature and / does not require the presence of a vacuum or inert atmosphere.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874375314A SU1551653A1 (en) | 1987-12-30 | 1987-12-30 | Method of obtaining powder-like lithium and yttrium double fluoride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874375314A SU1551653A1 (en) | 1987-12-30 | 1987-12-30 | Method of obtaining powder-like lithium and yttrium double fluoride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1551653A1 true SU1551653A1 (en) | 1990-03-23 |
Family
ID=21354398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU874375314A SU1551653A1 (en) | 1987-12-30 | 1987-12-30 | Method of obtaining powder-like lithium and yttrium double fluoride |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1551653A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1759765A1 (en) * | 2005-09-01 | 2007-03-07 | Ludwig-Maximilians-Universität München | Solutions of anhydrous lanthanide salts and its preparation |
| RU2494416C2 (en) * | 2008-03-24 | 2013-09-27 | Токуяма Корпорейшн | Scintillator for detecting neutrons and neutron detector |
-
1987
- 1987-12-30 SU SU874375314A patent/SU1551653A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Thoma R.E., Weaver С.Г., Friedman Н.А. Phase equilibria in the system LiF-YE,.- Phys. Chen. 1961, v. 65, N 7, P. 1096-1039. ( СПОСОБ ПОЛУЧЕНИЯ ПОРОШКООБРАЗНОГО ДВОЙНОГО ФТОРИДА ЛИТИЯ И ИТТРИЯ * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1759765A1 (en) * | 2005-09-01 | 2007-03-07 | Ludwig-Maximilians-Universität München | Solutions of anhydrous lanthanide salts and its preparation |
| WO2007026014A1 (en) * | 2005-09-01 | 2007-03-08 | Ludwig-Maximilians-Universitaet Muenchen | Solutions of anhydrous lanthanide salts and its preparation |
| CN101277763B (en) * | 2005-09-01 | 2012-08-22 | 慕尼黑路德维格-马克西米利安斯大学 | Solutions of anhydrous lanthanide salts and its preparation |
| RU2494416C2 (en) * | 2008-03-24 | 2013-09-27 | Токуяма Корпорейшн | Scintillator for detecting neutrons and neutron detector |
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