饲料级磷酸钙盐生产新工艺  

New Process for Production of Feed Grade Calcium Phosphates

作　　者：堵志文[1] 陈国华[1] 李翔艺[1] 

机构地区：[1]上海化工研究院磷酸盐室

出　　处：《化肥工业》1999年第1期29-30,共2页Chemical Fertilizer Industry

摘　　要：介绍以湿法磷酸为原料，采用热气流鼓泡浓缩脱氟一步法制取低氟浓磷酸的工艺研究及结果，以及用低氟浓磷酸与碳酸钙粉直接混合反应制取不同磷钙比的饲料级磷酸钙盐的生产技术。A description is given of the study and results of the one step process for concentration and defluorination of wet process phosphoric acid by bubbling with hot gas to obtain low fluorine concentrated phosphoric acid and the production technology for the preparation of feed grade calcium phosphates of different phosphorus/calcium ratios by direct mixing and reaction of the low fluorine concentrated phosphoric acid with pulverized calcium carbonate.

关 键 词：湿法磷酸 脱氟 浓缩 饲料级 磷酸钙盐 

分 类 号：S816.71[农业科学—饲料科学] TQ131.32[农业科学—畜牧学]