反应结晶过程中六氨氯化镁的粒度分布  

Crystal Size Distribution of Magnesium Chloride Hexammoniatein Reaction Crystallization Process

作　　者：赵建海[1] 王相田[1] 宋兴福[1] 于建国[1] 

机构地区：[1]华东理工大学资源与环境工程学院

出　　处：《华东理工大学学报（自然科学版）》2005年第3期323-326,共4页Journal of East China University of Science and Technology

摘　　要：采用反应结晶法制备了六氨氯化镁,研究了各种操作条件对六氨氯化镁晶体粒度分布的影响,确定了晶体粒度分布的控制因素。结果表明:采用连续反应得到的六氨氯化镁平均粒径大于间歇反应,反应器两侧同时加料时的粒径大于一侧加料的粒径;适当提高搅拌转速,可以提高产品的平均粒径,降低加料速率和减少搅拌时间均可以提高平均粒径,晶种的加入可以使粒度分布更加均匀。Magnesium chloride hexammoniate (MgCl2·6NH3) is produced using reaction crystallization method. Effects of operating conditions on the reaction crystallization of MgCl2·6NH3 are reported and the control factors of crystal size distribution (CSD) are confirmed. The average crystal size in continuous operation is larger than that of in batch operation. The crystal size of product increases with increasing stirring rate, reaches a maximum, and then decreases again. Decreasing feed rate or decreasing stirring time increases the crystal size. A double feed operation in opposite reactor side can create larger crystal size than that of single feed operation, and by seeding method can cause the crystal size distribution more uniform.

关 键 词：六氨氯化镁 反应结晶 粒度分布 

分 类 号：TQ132.2[化学工程—无机化工]