瓮福磷肥厂P2O5 100 kt/a湿法磷酸净化装置采用溶剂萃取法,利用其副产物萃余酸生产粒状磷酸一铵(GMAP)。分析生产中出现产品氮含量低、水分超标和内抄板结疤等问题,介绍工艺上采取的一些有效解决措施,取得较好效果,GMAP产品完全符合国标要求。 Wengfu Phosphate Fertilizer Plant The P2O5 100 kt / a wet-process phosphoric acid purification unit uses solvent extraction to produce particulate monoammonium phosphate (GMAP) from its by-product raffinate. Analysis of production appears in the product of low nitrogen content, excessive moisture and scratch inside the board copy, introduce some effective measures taken to achieve better results, GMAP products fully meet the national standard.