Method for Preparing Tungsten Trioxide by Utilizing Tungsten Concentrate

The invention relates to a method for preparing tungsten trioxide by utilizing tungsten concentrate.

The method comprises the steps of: mixing and calcining tungsten concentrate and silicon dioxide to obtain calcined product containing the tungsten trioxide. By utilizing the method, the tungsten trioxide can be prepared in one step by utilizing the tungsten concentrate, so that the process flow can be shortened, the waste acid and alkaline liquid caused by the utilization of sodium hydroxide and hydrochloric acid in the prior art can be effectively avoided, the environment is free from being polluted, and high-efficient and clean production and zero-emission of waste water and waste gas can be realized.

A method for preparing the tungsten tungsten trioxide, characterized by comprising: dividing the concentrates were mixed with crab and calcined silica, to obtain a tungsten trioxide containing fired product.




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