A Review of Niobium-Tantalum Separation in Hydrometallurgy
نویسندگان
چکیده
منابع مشابه
Application of liquid-liquid extraction to the separation of tantalum from niobium
The use of liquid-liquid extraction for the separation of tantalum from niobium was demonstrated. Tantalum and niobium spectrographically free of each other were prepared in quantity on a continuous basis.
متن کاملThe Welding and Brazing of the Refractory Metals Niobium, Tantalum, Molybdenum and Tungsten - a Review*
This review covers the present and future problems in the development and welding of niobium, tantalum, molybdenum and tungsten and their alloys. Their metallurgical characteristics are discussed together with the influence of impurities and alloying elements on mechanical properties, alloy development and weldability. Other factors briefly discussed are availability, high temperature strength,...
متن کاملEffect of heat input on microstructure and strength of welds in tantalum and niobium alloys
Welding of niobium and tantalum materials is currently conducted in vacuum or inert gas chambers, which limits the size of the equipment to be produced. The objective of this study is to investigate the means to make TIG welding on these materials in atmospheric environment and analyse the effect of heat input on the properties of welds. It was found that it is possible to make TIG welds on the...
متن کاملGreen extraction of Niobium and Tantalum from Kenticha Tantalite ore using 1-Ethyl-3-Methyl Imidazolium Chloride ionic liquid
The decomposition of the Ethiopian Kenticha tantalite ore was studied using the KOH fusion and H2O leaching system at 400 0C for a 1 h reaction time. The experimental results obtained showed that 27 wt% of Ta2O5 was mainly transformed into insoluble KTaO3, not to be KNbO3, and as well, into the dissolved liquor containing 94.73 vol% of Nb2O5 and 75.80 vol% of Ta2O5. The observations, supported ...
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ژورنال
عنوان ژورنال: Journal of Minerals and Materials Characterization and Engineering
سال: 2011
ISSN: 2327-4077,2327-4085
DOI: 10.4236/jmmce.2011.103016