| 摘要 |
<p>A process for the production of zeolite NaA in which pulverulent zeolites NaA having the composition 1.0 +/- 0.2 Na2O:Al2O3:1.85 +/- 0.5 SiO2.yH2O, where y denotes a number of up to 6, having 50% by weight of particles of below at most 4.0 mu m and a particle spectrum <IMAGE> are employed as a nucleating centre.l</p> |
