水溶性磷酸一铵制备工艺研究  

Study on preparation of water-soluble monoammonium phosphate

作　　者：周晶晶 苏小林 徐志强 何新建 ZHOU Jingjing;SU Xiaolin;XU Zhiqiang;HE Xinjian(Hubei Dayukou Chemical Co.,Ltd.,Zhongxiang 431910,China)

机构地区：[1]湖北大峪口化工有限责任公司,湖北钟祥431910

出　　处：《磷肥与复肥》2022年第11期14-16,共3页Phosphate & Compound Fertilizer

摘　　要：选取湿法磷酸为原料生产水溶性磷酸一铵,研究中和度、陈化时间、过滤温度和稀释浓度对产品品质的影响。实验表明稀磷酸适合生产64.0%的水溶性磷酸一铵,浓磷酸适合生产66.0%的水溶性磷酸一铵,控制中和度1.0左右、料浆陈化2 h以上、过滤温度80~90℃有利于过滤操作和产品水不溶物含量控制。The effects of neutralization degree, aging time, filtration temperature and dilution concentration on the quality of water-soluble monoammonium phosphate produced from wet-process phosphoric acid are studied. The results show that dilute phosphoric acid is suitable for producing 64.0% water-soluble ammonium phosphate and concentrated phosphoric acid is suitable for producing 66.0% water-soluble ammonium phosphate. The control of neutralization degree of 1.0, slurry aging time for more than 2 h and filtration temperature of 80-90 ℃ is beneficial to filtration operation and the control of water-insoluble substance content of products.

关 键 词：水溶性磷酸一铵 制备 中和度 水不溶物 

分 类 号：TQ444[化学工程—化学肥料工业]