Study on producing monodisperse crystals based on industrial crystallization engineering

在PEI（聚乙烯亚胺）存在下进行单分散SrSO 4颗粒的沉淀。PEI添加改变了一些颗粒性质，例如。G.尺寸、形状、尺寸分布宽度、附聚率。本文主要研究了PEI用量对纳米晶粒度分布的影响。PEI辅助的双喷射技术不需要困难的进料速率控制，因此，我们的想法将可用于其他无机化合物的沉淀以制备纳米/微米单分散颗粒。

Precipitation of mono-dispersed SrSO4 particles was carried out in the presence of PEI(polyethylenimine). PEI additions varied some particulate properties, e. g. sizes, shapes, size distribution widths, agglomeration ratios. The present paper mainly focused on influence of PEI dosage on crystal size distributions. PEI-assisted double jet techniques require no difficult controls of feeding rates, therefore, our idea will be available to precipitation of other inorganic compounds for the purpose of producing nano/micro mono-dispersed particles.