The production and preparation methods of cobalt tungstate mainly include traditional solid phase method, wet chemical method, co-precipitation method, hydrothermal method, spray pyrolysis method, etc.
(1) The traditional solid-state method has high synthesis temperature and high energy consumption, and the resulting powder has a large particle size and irregular shape.
(2) Although the co-precipitation method can effectively realize the uniform mixing of the reaction components on the atomic scale, the disadvantage is that the precipitated precipitate needs to go through high-temperature calcination and other processes.
(3) Although the hydrothermal method has its advantages, it has strict requirements on equipment and complicated operation, and is not suitable for industrial scale production.
(4) At present, the low-temperature molten salt method is conducive to large-scale production. The production process is simple and the technical requirements for equipment are not high, and the quality of the prepared products is good.
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