Normal-temperature synthesis method of electronic-grade high-purity barium carbonate

Abstract

The invention discloses a normal-temperature synthesis method of electronic-grade high-purity barium carbonate.The method comprises the steps of barium carbonate dissolution and purification, barium carbonate synthesis and barium carbonate washing and purification.A purified barium carbonate solution is dropwise added into a food-grade ammonium bicarbonate solution under the normal temperature to synthesize barium carbonate, and the washing frequency of the barium carbonate is reduced to three.The synthesis temperature of the high-purity barium carbonate is reduced from the traditional 60 DEG C to normal temperature; on the basis of ensuring that the synthesized barium carbonate meets the electronic-grade high-purity requirement, energy is saved, emission is reduced, and the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of electronic materials, and in particular relates to a method for synthesizing electronic-grade high-purity barium carbonate at room temperature. Background technique [0002] Electronic grade high-purity barium carbonate is a material that requires high content, low impurities, and small and uniform particle size. Generally, production is carried out at above 60°C, which results in high energy consumption, large emissions, and high costs. . As the requirements for the environment are getting higher and higher, and in order to achieve energy saving and emission reduction and reduce production costs, if barium carbonate can be synthesized under normal temperature conditions, it can also achieve electronic grade high purity (that is, high content, low impurities, and small particle size) And uniform) requirements are very necessary. Contents of the invention [0003] The technical problem solved by the pr...

AI Technical Summary

Problems solved by technology

[0002] Electronic grade high-purity barium carbonate is a material that requires high content, low impurities, and small and uniform particle size. Generally, production is carried out at above 60°C, which results in high energy consumption, large emissions, and high costs.