磷资源加工研究进展:9.饲料级磷酸钙盐的新工艺  

Research progress of phosphate resource processing:9.The new technology progress of feed-grade calcium phosphate

作　　者：刘代俊[1] 蒋绍志[1] 罗洪波[1] 张允湘[1] 钟本和[1] 

机构地区：[1]四川大学化工学院四川省磷化学与工程重点实验室,四川成都610065

出　　处：《磷肥与复肥》2010年第3期9-11,共3页Phosphate & Compound Fertilizer

摘　　要：介绍利用湿法磷酸生产饲料级磷酸钙盐的新工艺。工艺分为气提脱氟与反应造粒两段。比较真空浓缩气提脱氟或直接气提浓缩脱氟的区别,分析了喷雾造粒与机械搅拌造粒的优缺点,并作了成本估计。因该系统可满足MDCP等3种产品的生产要求,能耗较低,便于规模化生产,且产品量正日益扩大,故本工艺具有较好的应用前景。Divided into two parts： both defluorination by gas stripping and reaction-granulation the new technology of feed-grade calcium phosphate made from WPA is introduced. The differences of defluorination by gas stripping between vacuum concentration and atmospheric concentration are discussed. The advantages and weaknesses between spray-granulation and mechanical stirring-granulation are also analyzed, with the cost estimation. The technology has a good application prospect, for the preparation of 3 kinds products of MDCP with low energy consumption, and convenient for industrial production.

关 键 词：饲料级磷酸盐 MDCP 气提脱氟 喷雾造粒 机械造粒 

分 类 号：TQ126.35[化学工程—无机化工]