以蛇纹石及云母粉合成六方堇青石之方法;A MEANS FOR THE SYNTHESIS OF INDIALITE FROM SERPENTINE AND MICA POWDER

摘要

本发明是将蛇纹石及云母粉，经煆烧合成六方堇青石(Mg2Al4Si5O18)的方法。本方法是将蛇纹石研磨，使其粒径细于400号筛(38 μm)，与云母粉(为一种绢云母及叶蜡石之混合物，粒径细于38 μm)混合，二者质量比为1：1.4至1：4.5，将此混合物在大气气氛下，于1200℃至1400℃之温度煅烧，煅烧时间1至8小时，即可合成六方堇青石。 This patent provides a means for the synthesis of indialite (Mg2Al4Si5O18) from a mixture of serpentine and mica powder. In this patent, the serpentine is ground to finer than 400 mesh sieve (38 μm), and is mixed with mica powder (a mixture of sericite and pyrophyllite of sizes smaller than 38 μm). The mass ratio of these two raw materials is from 1:1.4 to 1:4.5. Under atmospheric conditions, the mixture is calcined at 1200℃ to 1400℃