Tungsten Cobalt

Tungsten cobalt chemical formula is CoWO4 and molecular weight is 307.78. It has wolframite structure, CAS number: 12640-47-0. Tungsten cobalt as a functional material widely used in anti-knock, paint additives, catalysts, microwave dielectric ceramics and optical anode materials.
There are many methods for producing CoWO4 which are traditional solid-phase method and wet chemical methods including co-precipitation method, hydrothermal method, spray pyrolysis method and so on. However, these method more or less are some problems, such as conventional solid-phase method need high synthesis temperature, larger energy consumption, the resulting powder particle size is large, irregular shape. While co-precipitation method can effectively realize the reaction components are homogeneously mixed at the atomic scale, but get precipitate requires high temperatures calcination process. Besides, the hydrothermal method more strict on equipment and has complex operation. After a series of studies found that low-temperature molten salt method produce tungsten cobalt not only process simple, and do not ask more of technical equipment, it is conducive to large-scale production.

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