Production Methods of Zinc Oxide for Cosmetics
Zinc oxide used in cosmetics can meet performance requirements, but production must follow strict procedures to achieve good results. Below are the common production methods.
Cosmetic zinc oxide is commonly produced by calcining zinc carbonate or by calcining and decomposing zinc hydroxide. Crude zinc oxide can be smelted into zinc and then oxidized at high temperature, or obtained by oxidizing molten zinc. Common approaches include the indirect method using zinc ingots, the direct method using zinc ore, and wet processes. Using zinc carbonate as raw material involves washing, drying, calcining, and crushing. Using zinc hydroxide involves washing, precipitation, drying, calcining, cooling, and grinding to produce the final product.
The above describes production methods for cosmetic zinc oxide. Operations must follow the specified procedures; if you have questions, please contact us. We are a professional manufacturer and can provide reasonable advice.