| 羧甲基淀粉吸附剂的研制 |
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| 引用本文： | 刘明华,詹怀宇,刘柏林,张新申,王峰. 羧甲基淀粉吸附剂的研制[J]. 精细石油化工, 2000, 0(5): 35-38 |
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| 作者姓名： | 刘明华 詹怀宇 刘柏林 张新申 王峰 |
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| 作者单位： | 1. 华南理工大学制浆造纸工程国家重点实验室，广州，510640
2. 四川大学，成都，610065 |
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| 摘 要： | 以玉米淀粉为基体 ,通过优选交联工艺 ,按玉米淀粉与环氧氯丙烷的摩尔比为 6 .0∶ 1投料 ,在常温、碱性条件下制备了交联淀粉。然后以 Cr3+为吸附质 ,通过研究吸附剂的吸附性能来优化接枝反应条件 ,结果表明将交联淀粉∶氯乙酸 =1∶ 1 .5 (摩尔比 ) ,在 6 5℃下接枝反应 6 0 min,可制得吸附性能好、水不溶性的羧甲基淀粉吸附剂。
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| 关 键 词： | 玉米淀粉 羧甲基淀粉 交联 接枝 |
| 修稿时间： | 1999-06-14 |
THE PREPARATION OF CARBOXYMETHYL STARCH ADSORBENT |
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| Liu Minghua,Zhan Huaiyu,LIU Bolin,Zhang Xinshen,Wan Feng. THE PREPARATION OF CARBOXYMETHYL STARCH ADSORBENT[J]. Speciality Petrochemicals, 2000, 0(5): 35-38 |
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| Authors: | Liu Minghua Zhan Huaiyu LIU Bolin Zhang Xinshen Wan Feng |
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| Abstract: | The crosslinked starch was first prepared with the mixture of corn starch and epichlorohydrin under basic condition at ambient temperature by optimizing the cross -link procedure. The molar ratio of corn starch to epichlorohydrin was 6.0: 1. Then the study on the adsorption capacity of the adsorbent was conducted to optimize the graft procedure by employing er3- ion as the adsorbate. The water -insoluble carboxymethyl starch (CMS) adsorbent, containing excellent adsorption capacity, was ultimately prepared by grafting 1.5 mole chloroacetic acid onto the 1.0 mole crosslinked starch at 65℃ for 60 min. |
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| Keywords: | corn starch carboxymethyl starch crosslink graft adsorbent |
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