DDTC络合去除硫酸铝中铁工艺条件的优化  

Optimization on Removing Iron from Aluminum Sulfate Solution Using DDTC as Complexing Agent

作　　者：李秦川[1] 贾志奇[1] 郭慧玲[1] 赵永祥[1] 

机构地区：[1]山西大学化学化工学院精细化学品教育部工程研究中心,山西太原030006

出　　处：《化学与生物工程》2012年第4期72-73,共2页Chemistry & Bioengineering

基　　金：山西省高校科技开发项目(2007108)

摘　　要：利用络合剂二乙基二硫代氨基甲酸钠(DDTC)去除含铁硫酸铝溶液中的铁,探讨了DDTC用量、溶液pH值、反应温度、反应时间等因素对除铁效率的影响。结果表明,在DDTC用量(以100mL含铁硫酸铝计)为0.88g、溶液pH值为2.5～3.0、室温反应5min时,铁去除率达94%,铁含量低于50×10-6。该法可用于高档纸张和高级织物等工业领域中含铁硫酸铝溶液的铁去除。The process of removing iron from aluminum sulfate solution using sodium diethyldithiocarbamate（DDTC） as complexing agent was studied.The influence of DDTC dosage,pH value of solution,reaction temperature and reaction time on removing iron efficiency were discussed.The optimum reaction conditions were obtained as follows：DDTC amount was 0.88 g,the pH value of solution was 2.5~3.0,the reaction temperature was room temperature,the reaction time was 5 min.Under above conditions,the removing rate of iron was 94%,and the iron content was below 50×10-6.The method could apply to removing iron from aluminum sulfate solution in high-grade paper and fabric field.

关 键 词：硫酸铝 二乙基二硫代氨基甲酸钠(DDTC) 络合-沉淀反应 除铁 

分 类 号：TQ064[化学工程] TQ133.1