二水物湿法磷酸过滤工艺优化研究  

Optimization of Dihydrate Wet Phosphoric Acid Filtration Process

作　　者：陈春 CHEN Chun(Guiyang Kailin Phosphate Fertilizer Co.,Ltd.,Guiyang 551109,China)

机构地区：[1]贵阳开磷化肥有限公司,贵州贵阳551109

出　　处：《硫磷设计与粉体工程》2024年第5期31-34,I0002,共5页Sulphur Phosphorus & Bulk Materials Handling Related Engineering

摘　　要：二水物湿法磷酸过滤及洗涤性能关系着生产负荷和磷的回收率,也是制约着萃取生产产能提升的关键因素。研究表明,在料浆过滤过程中,提升温度和降低酸浓均可提升料浆的过滤强度,提升真空度可增加过滤强度,调整洗水的分布方式可在一定程度上降低石膏中的水溶磷含量。The performance of dihydrate wet phosphoric acid filtration and washing is related to the production load and phosphorus recovery,and is also the key constraint for the improvement of extraction production capacity.The research findings show that in the process of slurry filtration,by increasing the temperature and reducing the acid concentration it can improve the filtration strength of the slurry,and by increasing the vacuum degree it can increase the filtration strength,and by adjusting the distribution mode of washing water it can reduce the water-soluble phosphorus content in gypsum to a certain extent.

关 键 词：湿法磷酸 过滤强度 磷石膏洗涤 萃取 水溶磷 

分 类 号：TQ126.35[化学工程—无机化工]