铝酸钠溶液中晶体附聚机理研究

STUDY ON AGGLOMERATION MECHNISM IN DECOMPOSITION PROCESS OF ALUMINATE SOLUTION

本文研究了铝酸钠溶液中晶体的附聚机理。认为晶体的附聚过程为：晶体中粒度相对最小且粒度相近的粒子发生附聚，形成略大些颗粒，略大一些颗粒且粒度相近的粒子又发生附聚，这样依次实现的过程，直到溶液过饱和度不能满足对应粒级粒度粒子发生附聚的要求为止。

This paper is concerned in the agglomeration mechanism in the decompo-sition process of the aluminate solution with the addition of seed. While lim-iting the secondary nucleation of crystal, agglomeration shows the followingmechanism:1,Agglomeration happens among the particles of seed which aresmaller and similar in size; 2, The agglomeration procedures are as foll-ows:first,the smaller particles in the liquor agglomerate to form largerones,then the larger particles agglomerate to form even larger ones and ...