SU339143A1 - Method of producing oxysulfides of rare-earth elements of yttrium - Google Patents
Method of producing oxysulfides of rare-earth elements of yttrium Download PDFInfo
- Publication number
- SU339143A1 SU339143A1 SU701404859A SU1404859A SU339143A1 SU 339143 A1 SU339143 A1 SU 339143A1 SU 701404859 A SU701404859 A SU 701404859A SU 1404859 A SU1404859 A SU 1404859A SU 339143 A1 SU339143 A1 SU 339143A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- rare
- yttrium
- producing
- earth elements
- oxysulfides
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 9
- 229910052761 rare earth metal Inorganic materials 0.000 title claims description 4
- 229910052727 yttrium Inorganic materials 0.000 title claims 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 title claims 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 title description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 14
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 8
- 239000001569 carbon dioxide Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000012467 final product Substances 0.000 claims 1
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 claims 1
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 239000010453 quartz Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000012159 carrier gas Substances 0.000 description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- SOIFLUNRINLCBN-UHFFFAOYSA-N ammonium thiocyanate Chemical compound [NH4+].[S-]C#N SOIFLUNRINLCBN-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- HRKQOINLCJTGBK-UHFFFAOYSA-N dihydroxidosulfur Chemical compound OSO HRKQOINLCJTGBK-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- -1 rare earth oxysulfides Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005486 sulfidation Methods 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Landscapes
- Luminescent Compositions (AREA)
Description
Изобретение относитс к способам получени материалов дл .полупроводниковой техники и радиоэлектроники (например, при изготовлении люминесцирующих светосоставов дл кинескопов в цветном телевидении ).The invention relates to methods for producing materials for semiconductor technology and radio electronics (for example, in the manufacture of luminescent light compositions for kinescopes in color television).
Известен способ получени оксисульфидов редкоземельных элементов, заключающийс в том, что окисел редкоземельного элемента нагревают 2-8 ч при 750-800°С в парах сероуглерода. Полученный оксисульфид , загр зне нный углеродом, помещают в вакуум-эксикатор дл удалени следов сероуглерода , а затем нагревают в токе кислорода а течение 1 ч при 800-1200°С с целью удалени примесей. После охлаждени частично окисленный до основного сульфата оксисульфид нагревают в токе водорода при 1200-1300°С дл восстановлени дй оксисульфида . Недостатками такого способа вл ютс многостадийность, длительность процесса, высока температура,синтеза и низкое качество продукта.A known method for producing rare earth oxysulfides is that the oxide of the rare earth element is heated for 2-8 hours at 750-800 ° C in carbon disulfide fumes. The resulting carbonyl-contaminated oxysulfide is placed in a vacuum desiccator to remove traces of carbon disulfide, and then heated in a stream of oxygen for 1 hour at 800-1200 ° C to remove impurities. After cooling, the oxysulfide, partially oxidized to basic sulphate, is heated in a stream of hydrogen at 1200–1300 ° C to reduce the hydroxysulfide. The disadvantages of this method are the multistage process, the duration of the process, the high temperature, the synthesis and the low quality of the product.
С целью упрощени процесса и повышени качества продукта по предлагаемому способу сульфидирование провод т смесьюIn order to simplify the process and improve the quality of the product according to the proposed method, the sulfiding is carried out with a mixture
сульфидирующего агента с двуокисью углерода при температуре 650-900°С.sulfiding agent with carbon dioxide at a temperature of 650-900 ° C.
Применение в качестве окислител двуокиси углерода в указанном диапазоне температур позвол ет в одну стадию получить оксисульфид, вл ющийс в этих услови х единственно возможным конечным продуктом , и существенно увеличить скорость реакции , npoteкaющeй по механизму газ-твердое. Продукт, полученный по предлагаемому способу, практически чистый и отвечает стехиометрическому составу.The use of carbon dioxide as an oxidizer in this temperature range makes it possible in one stage to obtain oxysulfide, which is the only possible end product under these conditions, and to substantially increase the reaction rate, which is gas-solid. The product obtained by the proposed method, almost pure and meets the stoichiometric composition.
Примеров кварцевую трубку, в которой находитс лодочка с 1 г окисла лантана , подают газообразнь1е продукты термического разложени роданида аммони (180-220°С. а в качестве газа-носител и второго реагента используют двуокись углерода . Скорость подачи газа-носител 4 л/ч. Затем кварцевую трубку помещают в печь (температура 750°С). Врем сульфидировани 0,5 ч. после отключени источника сульфидирующего агента продукт выдер 1 ивают 1 ч при 750°С в атмосфере двуокиси углерода . Выход оксисульфида по результатам химического и рентгенофазового анализовFor examples of a quartz tube in which a boat with 1 g of lanthanum oxide is located, the gaseous ammonium rhodanide thermal decomposition products are supplied (180-220 ° C.) Carbon dioxide is used as the carrier gas and the second reagent. The carrier gas flow rate is 4 l / h The quartz tube is then placed in a furnace (temperature 750 ° C). The sulfiding time is 0.5 hours after the source of the sulfiding agent is turned off, the product is released for 1 hour at 750 ° C in an atmosphere of carbon dioxide. The yield of oxysulfide is determined by chemical and X-ray phase analysis. in
3 33914343 3391434
количественный, состав соответствует сте-ратура 750°С). Врем сульфидировани 0,5хиометрическому . чистота 100%.1 ч. После отключени источника сульфидиП р и м е р 2. В кварцевую трубу, врующего агента продукт выдерживают вquantitative, composition corresponds to the temperature of 750 ° C). Sulfidation time is 0.5. purity 100% .1 h. After disconnecting the source of sulfidiP ryme 2. In a quartz tube, the converting agent is kept in the
которой находитс лодочка с 1 г окисла лан-течение 0,5 ч при 75б°С в атмосфере двуокитана , подают смесь сероуглерода и двуоки-5 си углерода. Выходоксисульфида порезульси углерода в объемном отношении 1:5татам химического и рентгенофазовогоwhich contains a boat with 1 g of lan-oxide for 0.5 h at 75b ° C in the atmosphere of dioxane, a mixture of carbon disulfide and 5-carbon dioxide carbon is fed. The yield of carbon dioxide in a volume ratio of 1: 5 is chemical and X-ray
(скорость подачи двуокиси углерода 4 л/ч),анализов количественный, состав соответпосле чего трубку помещают в печь (темпе-ствует стехиометрическому, чистота 100%.(feed rate of carbon dioxide 4 l / h), quantitative analyzes, the composition of the corresponding, after which the tube is placed in a furnace (temperature is stoichiometric, purity 100%.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU701404859A SU339143A1 (en) | 1970-02-18 | 1970-02-18 | Method of producing oxysulfides of rare-earth elements of yttrium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU701404859A SU339143A1 (en) | 1970-02-18 | 1970-02-18 | Method of producing oxysulfides of rare-earth elements of yttrium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU339143A1 true SU339143A1 (en) | 1991-10-30 |
Family
ID=20450041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU701404859A SU339143A1 (en) | 1970-02-18 | 1970-02-18 | Method of producing oxysulfides of rare-earth elements of yttrium |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU339143A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7807124B2 (en) * | 2006-07-13 | 2010-10-05 | Carbodeon Ltd. Oy | Carbon nitride preparation method |
-
1970
- 1970-02-18 SU SU701404859A patent/SU339143A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7807124B2 (en) * | 2006-07-13 | 2010-10-05 | Carbodeon Ltd. Oy | Carbon nitride preparation method |
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