| 均相催化水合乙二醇工艺中溶剂的研究 |
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| 引用本文： | 张民,刘定华,刘晓勤,马正飞,姚虎卿.均相催化水合乙二醇工艺中溶剂的研究[J].陶瓷科学与艺术,2005(4). |
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| 作者姓名： | 张民 刘定华 刘晓勤 马正飞 姚虎卿 |
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| 作者单位： | 南京工业大学化学化工学院 江苏南京210009
(张民，刘定华，刘晓勤，马正飞)，南京工业大学化学化工学院 江苏南京210009(姚虎卿) |
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| 摘 要： | 测定了催化水合乙二醇工艺中使用的NY1催化剂在二甘醇、乙二醇、甘油以及乙二醇与甘油混合溶剂中的溶解度,并探讨了上述饱和溶液的粘度随温度的变化关系。实验结果表明:催化剂NY1在甘油中的溶解度最大;NY1较适宜的溶剂为20%乙二醇与80%甘油组成的混合溶剂。若用该混合溶剂代替原工艺中的纯乙二醇作为催化剂循环使用的溶剂,可以减少循环量,节省能耗,进一步完善均相催化水合乙二醇工艺。
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| 关 键 词： | 乙二醇 甘油 溶解度 溶剂 催化水合* |
Study on the solvent in the process of synthesis of ethylene glycol by catalytic hydration |
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| ZHANG Min,LIU Ding-hua,LIU Xiao-qin,MA Zheng-fei,YAO Hu-qing.Study on the solvent in the process of synthesis of ethylene glycol by catalytic hydration[J].Ceramics Science & Art,2005(4). |
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| Authors: | ZHANG Min LIU Ding-hua LIU Xiao-qin MA Zheng-fei YAO Hu-qing |
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| Abstract: | The solubility of catalyst NY1 in the solvents of diethylene glycol(DEG), ethylene glycol(EG), glycerol and mixed solvents of EG and glycerol respectively were determined and the relations between viscosity and temperature of above saturated solutions were discussed. The results showed that the solubility of NY1 is maximal in the glycerol and the better solvent of NY1 is the mixed solvent of 20%EG and 80%glycerol. If the mixed solvent of 20%EG and 80%glycerol is used as the solvent instead of EG in the process of ethylene glycol synthesized by homogeneous catalytic hydration of ethylene oxide (EO) to recycle the catalyst, it will reduce the quantity of circulate solution, save the energy and make progress for the original process. |
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| Keywords: | ethylene glycol glycerol solubility solvent catalytic hydration |
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