湿法磷酸萃余酸用于肥料制备的研究综述  

Review on application of raffinate acid from WPA purification in fertilizer preparation

作　　者：舒艺周 马航 匡家灵 杨先 白正斌 杨东 SHU Yizhou;MA Hang;KUANG Jialing;YANG Xian;BAI Zhengbin;YANG Dong(Yunnan ICL YTH Phosphate Research and Technology Center Co.,Ltd.,Kunming 650228,China;Research and Development Centre,Yunnan Yuntianhua Co.,Ltd.,Kunming 650228,China)

机构地区：[1]云南云天化以化磷业研究技术有限公司,云南昆明650228 [2]云南云天化股份有限公司研发中心,云南昆明650228

出　　处：《磷肥与复肥》2022年第11期19-21,24,共4页Phosphate & Compound Fertilizer

摘　　要：溶剂萃取法生产湿法净化磷酸过程副产的萃余酸因含有大量杂质而难以回收利用,萃余酸的有效合理利用已成为急需解决的难题。综述萃余酸制备肥料的方法,指出存在的问题。基于萃余酸利用现有工艺的不足提出建议。It is difficult to recycle the by-product raffinate acid from the process of producing purified WPA by solvent extraction method because it contains a lot of impurities. The effective and reasonable utilization of raffinate acid has become a difficult problem to be solved urgently. The methods of using raffinate acid in fertilizer preparation are reviewed, and the problems are pointed out. Based on the deficiency of the existing process for the utilization of raffinate acid, the suggestions are put forward.

关 键 词：湿法磷酸净化 萃余酸利用 肥料 建议 

分 类 号：TQ126.35[化学工程—无机化工]