净化酸连续结晶生产工业级磷酸二氢铵工艺探讨  

Discussion on the Process of Continuous Crystallization of Purified Acid to Produce Industrial-grade Monoammonium Phosphate

作　　者：贺井峰 谢跃林 HE Jing-feng;XIE Yue-lin(Wengfu Dazhou Chemical Co.,Ltd.,Dazhou,635000 China)

机构地区：[1]瓮福达州化工有限责任公司,四川达州635000

出　　处：《硫磷设计与粉体工程》2024年第5期34-36,I0002,共4页Sulphur Phosphorus & Bulk Materials Handling Related Engineering

摘　　要：针对净化湿法磷酸采用传统间歇式中和法生产工业级磷酸二氢铵,存在产品细粉比例大、晶体大小不均匀、流动性差、易结块等问题,分析了2种传统间歇式生产技术存在的问题,阐述了连续结晶工艺原理和生产流程,分析了产品的粒度分布情况,认为连续结晶生产工艺可有效降低产品粉料比例,改善产品晶体外观,提高产品品质。In view of the problems of large proportion of fine powder,uneven crystal size,poor fluidity and easy agglomeration of the product,the problems existing in the two traditional batch production technologies are analyzed,the principle and production process of continuous crystallization process are presented,the particle size distribution of the product is analyzed,and it is believed that the continuous crystallization production process can effectively reduce the proportion of product powder,improve the appearance of product crystals and improve product quality.

关 键 词：工业级磷酸二氢铵 净化湿法磷酸 连续结晶 晶体形状 

分 类 号：TQ126.35[化学工程—无机化工]