硫酸磺化改性淀粉制备及阻垢性能试验研究  

Preparation of Sulfuric Acid Sulfonated Modified Starch and Testing Study of Its Scale Inhibition Properties

作　　者：刘玉玲[1] 高升[1] 刘利[1] 

机构地区：[1]西安理工大学西北水资源与环境生态教育部重点实验室,陕西西安710048

出　　处：《西安理工大学学报》2011年第1期36-40,共5页Journal of Xi'an University of Technology

基　　金：陕西省教育厅基金资助项目(09JK649);陕西省重点学科建设资金资助项目(106-00X907)

摘　　要：为了减轻和避免目前阻垢剂排放对环境造成的污染,本实验利用浓硫酸氧化淀粉制备改性淀粉,其颜色为棕红色;在不同浓度、温度、Ca2+浓度、pH值下,对硫酸磺化改性淀粉的阻垢性能进行测试。实验结果表明,硫酸磺化改性淀粉高效阻垢的最佳浓度为0.61 mg/L,最佳温度为80℃,对应的阻垢效率为84.7%。其阻垢效率随着Ca2+浓度及pH值的增加而减小,因此Ca2+浓度、pH值是影响阻垢剂阻垢效率的重要因素。对硫酸磺化改性淀粉与其它氧化改性淀粉的阻垢性能进行的比较实验结果表明,硫酸磺化改性淀粉的阻垢性能优于其它改性淀粉。In order to mitigate and avoid current scale inhibitor pollution emissions on the environment,in this lab,the concentrated sulfuric acid oxidized starch is used to prepare the modified starch,whose color is brown-red.Sulfuric acid sulfonated modified starch is tested in case of different concentrations,temperatures,Ca2＋ concentrations,pH values.It has been found that the best concentration of efficient scale of sulfuric acid sulfocated modified starch is 0.61 mg/L,and that the best temperature is 80 ℃,and that under this best concentration and temperature the corresponding inhibition rate is 84.7 %.The inhibition rate of sulfuric acid sulfonated modified starch decreases with an increase in Ca2＋ concentration and pH value,thus,indicating that Ca2＋ concentration and pH are the important factors that can affect the inhibition rate of scale inhibitor.Finally,the comparison is made of scale performance between sulfuric acid sulfonated modified starch and other oxidized modified starch,with the results showing that the scale inhibition of sulfuric acid sulfonated modified starch is superior to other oxidized modified starch.

关 键 词：绿色阻垢剂 改性淀粉 阻垢 硫酸磺化 

分 类 号：F830.5[经济管理—金融学]