Process for producing lithium silicate.

摘要

1. Process for the preparation of lithium silicate according to which lithium carbonate and silica are intimately mixed and this mixture is then subjected to a heat treatment, characterized in the mixture is subjected to a precalcination heat treatment at a temperature of between 410 and 4408C so as to form in the mixture at least 25 % by weight of a hexagonal phase consisting of lithium, silicon and oxygen, the crystal parameters of which are : a = 3.06 8A and c = 4.97 8A.