Preparation of High Purity Beryllium Oxide by Resolubility Hydrolysis Method
In order to solve the problem of high impurity in the preparation of beryllium hydroxide by BeSO4 solution in the process of uranium extraction from high fluoride uranium-beryllium ore,the precipitation of crude beryllium hydroxide with high Fe and Al impurities was studied by resolubility hydrolysis method.The effects of precipitation method of crude Be(OH)2,the amount of NaOH and resolubility temperature on the resolubility of crude Be(OH)2 were investigated.The results show that Be and SO42-can be separated efficiently by resolubility hydrolysis method,and the content of Fe and Al in the product can be greatly reduced.The high purity BeO products can be prepared by roasting the obtained high purity Be(OH)2 which meets the industrial standard.
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