交联淀粉黄原酸酯的制备及其处理废水的研究  

Preparation of Crosslinked Starch Xanthate Ester and Its Application in Wastewater Treatment

作　　者：赵红红[1] 常浩生[1] 王少龙[1] 

机构地区：[1]陕西理工学院化学与环境科学学院,陕西汉中723000

出　　处：《西部皮革》2015年第6期20-27,共8页West Leather

基　　金：陕西理工学院2014年大学生创新创业训练项目;项目编号:UIRP201400

摘　　要：以淀粉为原料,环氧氯丙烷为交联剂,二硫化碳为酯化剂,制备不溶性交联淀粉黄原酸酯。结果表明交联淀粉的最佳操作工艺条件为:玉米淀粉20 g、0.2 g/m L Na OH溶液5.0 m L、环氧氯丙烷4.0 m L、反应温度30℃、反应时间2.5 h。交联淀粉黄原酸酯的最佳合成工艺条件为:交联淀粉10 g,0.2 g/m L的Na OH溶液20 m L,5 m L CS2,温度50℃,反应时间1.0 h。交联淀粉黄原酸酯净化生活废水试验结果表明:在10 m L生活废水中,投加0.7 g淀粉黄原酸酯时,废水吸光度达到最小;当其他条件一定时,生活废水p H约为7、反应时间为40 min时,吸附效果较佳。Insoluble crosslinked starch xanthate （ISX） was prepared by using starch as a base material, epichlorohydrinas as a crosslinking agent and sulfur dioxide as an esterifying agent. The result showed that the optimum conditions for cross-linked starch were as followed, corn starch 20 g, sodium hydroxide solu- tion （0.2 g/mL） 5.0 mL, epichlorohydrin 4.0 mL, reaction temperature 30 ~C and reaction time 2.5 h; the optimum conditions for ISX were, crosslinked starch 10 g, sodium hydroxide solution （0.2 g/mL） 20 mL, carbon disulfide 5 mL, reaction temperature 50 ~C and reaction time 1.0 h. The results of application of ISX in living wastewater treatment showed that the absorbance of treated living wastewater （10 mL） reached to the lowest value when the amount of ISX was about 0.7 g, and the optimum treatment effect was obtained when the pH value of wastewater was 7.0 and the reaction time was 40 minutes.

关 键 词：交联 淀粉 交联淀粉黄原酸酯 生活废水 

分 类 号：TS236.9[轻工技术与工程—粮食、油脂及植物蛋白工程] X703[轻工技术与工程—食品科学与工程]