METHOD FOR PREPARINGΒ-EUCRYPTITE BY MECHANOCHEMICAL ACTIVATION AND CALCINATION, ANDΒ-EUCRYPTITE OBTAINED THEREBY

摘要

Disclosed are a method for preparingβ-eucryptite by mechanochemical activation and calcination, andβ-eucryptite obtained by the method. The method for preparingβ-eucryptite by mechanochemical activation and calcination comprises the steps of: (A) preparing materials comprising pyrophyllite (Al2O3·4SiO2·H2O), gibbsite (Al2O3·3H2O) and lithium carbonate (Li2CO3); (B) planetary milling the prepared materials and mixing the same; and (C) calcining the mixed materials. At this time, the materials can be amorphized. In addition, the planetary milling can be carried out for 90-120 minutes and the calcination can be carried out at 900-1,000℃ for 60-90 minutes.