Abstract: Organic clay was prepared by the reaction of activated clay with cheap stearic acid. The effects of the dosage of stearic acid, reaction temperature and reaction time on the content of organics in the organic clay are investigated. The results show that the under the conditions of mass ratio of stearic acid of 60%, the reaction temperature at 60 ℃ and reaction time for 2 h, the organic clay with the organics of 28.9% was produced. The XRD and FTIR analysis on the product indicated that the stearic acid has been intercalated into the crystal inter-layers of montmorillonite and expands the interlayer distance of Montmorillonite for 0.79 nm.

Key words: Preparation of organic clay, Activated clay, Stearic acid