关键词: 高岭土;除铁;增白

Abstract: The basical principles of the chemical method of de-ironing and bleaching of kaolin were discussed.The chemical method of de-ironing and bleaching of kaolin and progress were reviewed.The future develop trend and remaining problems of this method were also proposed.The impurity was removed by chemical reagent in the chemical process.The chemical method achieved good results and received high quality products.Our country is abundant in natural kaolin resources, but is poor in quality.So the chemical method fits perfectly.An in-depth study of chemical method was still required.So the open questions were resolved speedily.

Key words: kaolin;de-ironing;bleaching