Preparation method of electronic-grade barium hydroxide monohydrate

Abstract

The application discloses a preparation method of electronic-grade barium hydroxide monohydrate and belongs to the technical field of electronic ceramic and new energy battery materials. The method effectively inhibits stress corrosion cracking and caustic embrittlement of a stainless steel crystallization kettle in the crystallization process of barium hydroxide monohydrate by controlling the slurry concentration and temperature, controlling the vacuum degree, controlling the material reaction time, using various additives, using seed crystals and other means, so that the conventional stainless steel crystallization kettle can be stably operated in a high-temperature strong-alkali environment for a long time. Moreover, the prepared barium hydroxide monohydrate has a purity of 99.5% or above, the generation of impure barium hydroxide is avoided, and the safe use of the barium hydroxide monohydrate material on electronic ceramic materials and new energy automobile batteries is ensured.

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