生产饲料级磷酸氢钙用湿法磷酸净化技术探讨  

Review of Technology for Purification of Wet⁃process Phosphoric Acid for Production of Feed Grade Calcium Hydrogen Phosphate

作　　者：李燕凤 LI Yan-feng(SINOPEC Nanjing Engineering&Construction Inc.,Nanjing 211100,China)

机构地区：[1]中石化南京工程有限公司,江苏南京211100

出　　处：《硫磷设计与粉体工程》2020年第4期22-26,I0002,共6页Sulphur Phosphorus & Bulk Materials Handling Related Engineering

摘　　要：我国大型湿法磷酸和磷复肥企业正逐步向精细磷化工领域转型,用净化湿法磷酸制更高附加值的磷酸及磷酸盐的技术是当前最顺应时代、最先进的生产方法。总结了各种湿法磷酸的净化方法及其优缺点,重点探讨了用于生产饲料级磷酸氢钙时湿法磷酸的净化原理和工艺流程。As large wet⁃process phosphoric acid and compound phosphate fertilizer producers in China are shifting to the phosphate fine chemical sector,it is a trendy and advanced approach to employ the technology to produce high added⁃value phosphoric acid and phosphate by purifying wet⁃process phos⁃phoric acid.various methods for purification of wet⁃process phosphoric acid and their advantages and disadvantages are reviewd,and the purification mech⁃anism and process flow for purification of wet⁃process phosphoric acid for production of feed grade calcium hydrogen phosphate are highlighted.

关 键 词：磷酸净化 饲料级磷酸氢钙 湿法磷酸 探讨 

分 类 号：TQ126.35[化学工程—无机化工]