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Tungsten Resource-Saving: Cobalt Cermets Wastes Recycling and Concentrates Extraction

Tungsten Resource-Saving: Cobalt Cermets Wastes Recycling and Concentrates Extraction
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摘要 Potentials range is determined in which the cobalt-tungsten alloy phase selectively dissolved in solutions of phosphoric acid to form soluble compounds of these metals, while the tungsten carbide phase remains in the precipitate. It shows that tungsten ores and concentrates are decomposed at 1,050℃-1,100℃ in sodium chloride-sodium metasilicate melts to form two immiscible phases, namely, halide-tungstate, containing 96% to 99% of tungsten, and silicate, containing 90% of the rest ore components.
出处 《Journal of Environmental Science and Engineering(B)》 2015年第10期521-528,共8页 环境科学与工程(B)
关键词 TUNGSTEN carbide COBALT halide-metasilicate melts phosophric acid electrochemical dissolution RECYCLING extraction. 金属陶瓷 碳化钨 废物回收 资源节约 提取 和集 选择性溶解
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