Tantalum occurs in the minerals tantalite and columbite, which occur in pegmatites, an igneous rock formation. Mixtures of columbite and tantalite are called coltan. Tantalite was discovered by Anders Gustaf Ekeberg at Ytterby, Sweden, and Kimoto, Finland.
Tantalum ores often contain significant amounts of niobium, which is itself a valuable metal. As such, both metals are extracted so that they may be sold. The overall process is one of hydrometallurgy and begins with a leaching step, in which the ore is treated with hydrofluoric acid and sulfuric acid to produce water-soluble hydrogen fluorides, such as the heptafluorotantalate. This allows the metals to be separated from the various non-metallic impurities in the rock.
Bouling Chemical Co., Limited was established in 1988 and it is a national advanced and new technical enterprise. For years, it has developed into a new hightech enterprise.
At present, there are the latest production arts of the ferrovanadium, and the creative technology, the management and technologists with rich experience as well as a large number of customers with more than 20 or 30 years' experience and the new developed market.
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Bouling Chemical Co., Limited
Add: Tianchang City of Anhui Province, 86 Pearl Lake Road
Cell:008615295759871
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Email: info@chinavanadium.net