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| 淀粉黄原酸酯的合成及捕集重金属离子性能研究 | |
| 引用本文： | 刘汝锋,尚小琴,罗楠,江晓敏,赖雅平,杨素改.淀粉黄原酸酯的合成及捕集重金属离子性能研究[J].粮食与饲料工业,2009(6). |
| 作者姓名： | 刘汝锋 尚小琴 罗楠 江晓敏 赖雅平 杨素改 |
| 作者单位： | 1. 广州大学化学化工学院,广东,广州,510000 2. 江西省环境保护科学研究院广东分院,江西,南昌,330000 3. 广西大学化学化工学院,广西,南宁,530004 |
| 基金项目： | 广东省科技攻关项目，广东省自然科学基金 |
| 摘 要： | 以天然木薯淀粉为主要原料,环氧氯丙烷为交联荆制备交联淀粉,然后与CS2在碱性条件下发生黄原酸化反应制备改性淀粉黄原酸酯捕集荆,考察环氧氯丙烷用量、氢氧化钾用量、CS2浓度及反应温度、时间等诸因素对反应过程及产物捕集Cu2+性能的影响,确定了最佳的合成工艺条件.实验结果显示,合成捕集荆的最佳工艺务件为:环氧氯丙烷的用量为1.6 ml,KOH的用量为1.6 g.CS2用量11 ml,反应温度为35℃,反应时间为1.5 h.产物的舍硫量可达9.02%,Cu2+去除率可达96.95%. |
| 关 键 词： | 淀粉黄原酸酯 重金属离子 捕集剂 含硫量 去除率 |
Synthesis of Starch Xanthonate and Capability of Trapping Heavy Metal Ions from Wastes Water |
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| Liu Rufeng,Shang Xiaoqin,Luo Nan,et al.Synthesis of Starch Xanthonate and Capability of Trapping Heavy Metal Ions from Wastes Water[J].Cereal & Feed Industry,2009(6). | |
| Authors: | Liu Rufeng Shang Xiaoqin Luo Nan |
| Abstract: | Modified starch xanthonate was synthesized with cassava starch as raw material and epoxy ethyl chloride as crosslinking agent by xanthating reaction with CS2 under alkalinity condition.The affects of content of epoxy ethyl chloride,potassium hydroxide,carbon bisulfide,CS2 concentration as well as reactive temperature and time etc.on reaction process and product performance of trapping Cu2+ were investigated.Meanwhile,the optimal conditions for synthesis of trapping agent were determined as follows: the epox... |
| Keywords: | starch xanthonate heavy metal ion trapping agent sulfur content removal efficiency |
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