采用浓度法计算净化磷酸的萃取率  

Calculating the extraction rate of purified phosphoric acid by concentration method

作　　者：陈泽恩 倪萍 胡平 李晓林 CHEN Zeen;NI Ping;HU Ping;LI Xiaolin(Wengfu Zijin Chemical Co.,Ltd.,Longyan 361000,China;Wengfu Chemical Company,Fuquan 550500,China;Wengfu Dazhou Chemical Co.,Ltd.,Dazhou 635000,China)

机构地区：[1]瓮福紫金化工股份有限公司,福建龙岩361000 [2]瓮福化工公司,贵州福泉550500 [3]瓮福达州化工有限责任公司,四川达州635000

出　　处：《磷肥与复肥》2022年第11期25-26,48,共3页Phosphate & Compound Fertilizer

摘　　要：萃取率是净化磷酸生产中非常重要的指标之一。针对传统法计算萃取率数据滞后、误差大等问题,基于物质质量守恒定律,提出一种采用原料磷酸、萃余磷酸、反萃磷酸中P2O5、MgO浓度计算萃取率的方法。该方法与传统法计算萃取率相比,准确度较高。Extraction rate is one of the most important indexes in the production of purified phosphoric acid. Aiming at the problems of extraction rate data lag and large error of traditional method, based on the law of conservation of material mass, a method is proposed to calculate the extraction rate by using the concentration of P2O5and MgO in raw acid, raffic acid and back raffic acid. The method is more accurate than the traditional method.

关 键 词：净化磷酸 萃取率 质量守恒 应用 

分 类 号：TQ126.35[化学工程—无机化工]