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Magnesium, titanium, rare metals, semiconductors
ArticleName About niobium alkali solutions obtaining
ArticleAuthor Nikolaev A. I., Maiorov V. G., Kopkov V. K., Shchyur T. E.
ArticleAuthorData 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.
Abstract

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.
keywords Niobium pentoxide, sodium hydrocarbonate, potassium carbonate, baking, niobates, alkali solutions.
References

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Language of full-text russian
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