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《Glass & Enamel》 1990-04
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Investigation on the Method of Chemical Analysis of Tantalum-Niobium Tailings

Wang Ximei (Lanzhou Glass Factory)  
In order to make use of tantalum-niobium tailings for producing glass so as to cut production cost and improve physical and chemical properties of glass products, and to solve enviromental pollution problems caused by the tailings at the same time, the analytical method of tantalum-niobium tailings was investigated. A systematic analytical method for deter-ming chemical composition of the tailings was proposed, in which KOH-alcohol was used to melt tailings sample, the filtered liquid was secondary-dehydrates by HC1 after acid-treatment and used for systematic analysis after the separation and analysis of SiO2 by gravimetry. All the interference factors during analysis have been discussed. This paper can be referred by those factories in which tantalum-niobium tailings are being used.
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