SU891566A1 - Method of producing niobium pentaoxide - Google Patents
Method of producing niobium pentaoxide Download PDFInfo
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- SU891566A1 SU891566A1 SU782621625A SU2621625A SU891566A1 SU 891566 A1 SU891566 A1 SU 891566A1 SU 782621625 A SU782621625 A SU 782621625A SU 2621625 A SU2621625 A SU 2621625A SU 891566 A1 SU891566 A1 SU 891566A1
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- SU
- USSR - Soviet Union
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- niobium
- acid
- washing
- crystals
- producing niobium
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- Inorganic Compounds Of Heavy Metals (AREA)
Description
II
Изобретение отнотсис к способам получени ПЯТИОКИСИ ниоби высокой степени чистоты, котора используетс в качестве исходного сырь дл получени различных материалов дл оптического стекловарени , квантовой и радиоэлектронной технике.The invention relates to methods for producing high purity niobium monoxide, which is used as a raw material for the production of various materials for optical glassmaking, quantum and radio electronic equipment.
Известен способ получени п тиокиси ниоби , включающий растворение технической гидроокиси ниоби в плавиковой кислоте, введение в образующийс раствор хлорида кали , отдепение тантала, осаждение гидроокиси ниоби , перевод ее в ниобат кали и перекристаллизацию последнего 1.A method of producing niobium pentoxide is known, which includes dissolving technical niobium hydroxide in hydrofluoric acid, introducing potassium chloride into the resulting solution, separating tantalum, precipitating niobium hydroxide, converting it to potassium niobate and recrystallizing the latter 1.
Недостатки способа состо т в большом количестве используемых операций и относительно низкой Чистоте конечного продукта.The disadvantages of the method are the large number of operations used and the relatively low purity of the final product.
Известен также способ получени ПЯТИОКИСИ ниоби высокой степени чистоты путем кислотного гидролиза пентахлорида ниоби серной кислотой из сол нокислых растворов в присутствии добавок перекиси водорода с последующей термической обработкой образующегос осадка 2.There is also known a method of obtaining high purity niobium pyatoxy by acid hydrolysis of pentachloride with niobium with sulfuric acid from hydrochloric acid solutions in the presence of additives of hydrogen peroxide followed by heat treatment of the resulting precipitate 2.
Недостатком способа вл етс отсут : ствие возможности очистки от кальци , магни и некоторых других примесей .The disadvantage of this method is the absence of the possibility of purification from calcium, magnesium and some other impurities.
Наиболее близким к предлагаемому по технической сущности и достигаемому результату вл етс способ полу10 чени ПЯТИОКИСИ ниоби высокой степени чистоты, заключающийс в обработке гидроокиси нилби щавелевой кислотой при до полного растворени , фильтрации гор чего раствора The closest to the proposed technical essence and the achieved result is the method of obtaining high purity niobium pyathoxide, which consists in treating hydroxide with nilbium oxalic acid until complete dissolution, filtering the hot solution
15 с последующим охлаждением до температуры не выше 25°С, отделении выпавших кристаллов оксалатониобиевой кислоты от маточного раствора, их промывке чистым ацетоном и термичес20 кой обработке в окислительной атмосфере при 800-900°С в течение 1 ч. Выход ПЯТИОКИСИ ниоби составл ет :.%. Содержание примесей железа, марганца,15, followed by cooling to a temperature not exceeding 25 ° C, separating the precipitated oxalatonic acid crystals from the mother liquor, washing them with pure acetone and thermally treating in an oxidizing atmosphere at 800-900 ° C for 1 hour. The yield of niobium pentoxide is:. % The content of impurities of iron, manganese,
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782621625A SU891566A1 (en) | 1978-06-01 | 1978-06-01 | Method of producing niobium pentaoxide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782621625A SU891566A1 (en) | 1978-06-01 | 1978-06-01 | Method of producing niobium pentaoxide |
Publications (1)
Publication Number | Publication Date |
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SU891566A1 true SU891566A1 (en) | 1981-12-23 |
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ID=20767177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU782621625A SU891566A1 (en) | 1978-06-01 | 1978-06-01 | Method of producing niobium pentaoxide |
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SU (1) | SU891566A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115322087A (en) * | 2022-07-22 | 2022-11-11 | 承德莹科精细化工股份有限公司 | Method for extracting high-purity niobium oxalate and niobium pentoxide from waste niobium-containing glass |
-
1978
- 1978-06-01 SU SU782621625A patent/SU891566A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115322087A (en) * | 2022-07-22 | 2022-11-11 | 承德莹科精细化工股份有限公司 | Method for extracting high-purity niobium oxalate and niobium pentoxide from waste niobium-containing glass |
CN115322087B (en) * | 2022-07-22 | 2023-10-03 | 承德莹科精细化工股份有限公司 | Method for extracting high-purity niobium pentoxide from waste niobium-containing glass |
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