Magnesium, titanium, rare metals, semiconductors | |
Название | About niobium alkali solutions obtaining |
Автор | Nikolaev A. I., Maiorov V. G., Kopkov V. K., Shchyur T. E. |
Информация об авторе | A. I. Nikolaev, Deputy Director of Scientific Work, e-mail: nikol_ai@hemy.kolasc.net.ru; V. G. Mayorov, Senior Researcher; V. K. Kopkov, Engineer; T. E. Shchur, Leading Technologist, I. V. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Centre, Russian Academy of Sciences. |
Реферат | The possibility of niobium-saturated alkali solutions obtaining by the way of Nb2O5 baking with sodium and potassium carbonates with further cake processing with water has been researched. Solutions with Nb2O5 content to 100 g/l have been obtained by baking of Nb2O5 with K2CO3 . 1,5H2O with a K:Nb ration equal to 2,3:1,0, temperature equal to 750 oC and cake processing with water with a S:L ratio equal to 1:2. Described solutions can be used in production of welding electrodes for alloying of electrode coatings with valuable component as niobium. |
Ключевые слова | Niobium pentoxide, sodium hydrocarbonate, potassium carbonate, baking, niobates, alkali solutions. |
Библиографический список | 1. Kalinnikov V. T., Nikolaev A. I., Brusnitsin Yu. D. Voprosy Materialovedeniya –Questions of Metal Science. 2006. No. 1 (45). pp. 201–211. 2. Kalinnikov V. T., Nikolaev A. I., Rybin V. V. Voprosy Materialovedeniya - Questions of Metal Science. 2008. No. 3 (55). pp. 31–40. 3. Rukovodstvo po preparativnoy neorganicheskoy khimii : per. s nem. (Instruction of preparative inorganic chemistry. trans. from Germany). Moscow, 1956. 896 p. 4. Goroshenko Ya. G. Khimiya niobiya i tantala (Chemistry of niobium and tantalum) Kiev : Naukova dumka, 1965. 483 p. 5. Fayrbroter F. Khimiya niobiya i tantala : per. s angl. (Chemistry of niobium and tantalum. Trans. from English). Moscow : Khimiya, 1972. 227 p. 6. Gibalo I. M. Analiticheskaya khimiya niobiya i tantala (Analytical chemistry of niobium and tantalum) Moscow : Nauka, 1967. 352 p. 7. Volnov I. I. Peroksokompleksy vanadiya, niobiya i tantala (Peroxocomplexes of vanadium, niobium and tantalum). Moscow : Nauka, 1987. 184 p. 8. Nikolaev A. I., Mayorov V. G. Ekstraktsiya niobiya i tantala (Extraction of niobium and tantalum). Apatity : Publ. Kola Scientific Centre (Russian Academy of Sciences), 1995. 209 p. |
Language of full-text | русский |
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