A new method for preparing feed grade calcium hydrophosphate with wet process acid was introduced.Compared with traditional two-step method,it improved the recovery of P 2O 5 over 90%.

• 介绍了一种由湿法磷酸制饲料级磷酸氢钙的新方法，将传统的二段法五氧化二磷的收率提高到90%25以上。