由高浓度含氰废水沉降物制备黄血盐钠  

Preparation of Sodium Ferrocyanide from Wastewater Sediment with High-enriched Cyanogen

作　　者：吴小伟[1] 陈国松[1] 张之翼[1] 张红漫[1] 李泉[1] 

机构地区：[1]南京工业大学理学院应用化学系,南京210009

出　　处：《化工时刊》2004年第4期37-38,共2页Chemical Industry Times

摘　　要：用硫酸亚铁将菊酯生产废水中的高浓度CN-沉淀为Fe2 [Fe(CN) 6],经曝气后转化为溶解度更小的Fe4[Fe(CN) 6]3 铁蓝沉淀。沉淀物用氢氧化钠处理转化为黄血盐钠 ,经重结晶得Na4[Fe(CN) 6]·1 0H2 O ,所得产品的各项指标达到国标GB 6 70 8— 86一级品的要求。The high-enriched cyanogen in pyrethrin wastewater was precipitated in the form of ferrous ferrocyanide(Fe 2) by ferrous sulfate,then the ferric ferrocyanide(Fe 4 3),iron blue precipitation with less solubility was formed by means of aeration.The precipitation was transformed to sodium ferrocyanide with the treatment of sodium hydroxide,and its crystalline hydrate(Na 4·10H 2O) was obtained by recrystallization.Each item of product obtained came up to primary standard consulting GB6708-86.

关 键 词：含氰废水 硫酸亚铁 铁蓝 黄血盐钠 制备 菊酯 

分 类 号：X783[环境科学与工程—环境工程]