摘要
讨论了以次磷酸钠工业生产废渣为原料 ,回收制得亚磷酸钠 ,再采用电渗析法制备亚磷酸。详细研究了此方法的相关工艺和最佳条件 ,在最佳条件下 ,可回收相当于废渣总质量 35 %的有用产品 ,工厂将收到明显的经济效益和环境效益。
Disclosed in this paper is a process of recycling calcium phosphite from the waste residue,transforming it to sodium phosphite. Then take the concentrated NaH 2PO 3 as raw material and convert it into H 3PO 3 by electrodialysis. The practice process and optimal conditions are discussed in this paper,and as the result of the above process,plant will get more profits,not only in the economic,but also in the environmental aspects.
出处
《城市环境与城市生态》
CAS
CSSCI
CSCD
北大核心
2002年第4期30-32,共3页
Urban Environment & Urban Ecology
关键词
原料
次磷酸钠
亚磷酸
电解
废渣
回收技术
sodium hypophosphite
sodium phosphite
phosphorous acid
electrodialysis
waste residue
recovery technology
