| 酯交换法1,2-丙二醇的提纯新工艺 |
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| 引用本文： | 杜桂强,滕文彬,张瑞华. 酯交换法1,2-丙二醇的提纯新工艺[J]. 山东化工, 2010, 39(10): 13-14,19 |
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| 作者姓名： | 杜桂强 滕文彬 张瑞华 |
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| 作者单位： | 山东海科化工集团,山东,东营,257105;山东海科化工集团,山东,东营,257105;山东海科化工集团,山东,东营,257105 |
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| 摘 要： | 研究了一种提纯酯交换法1,2-丙二醇的新工艺。针对现有碳酸二甲酯装置联产的1,2-丙二醇存在产品容易变色、刺激性气味较大而不能达到医药级的问题,分析了酯交换法联产1,2-丙二醇质量差的原因,并提出了一种提纯酯交换法1,2-丙二醇的新工艺。经过提纯后的1,2-丙二醇达到了医药级要求(USP、EP标准),能够广泛应用于医药、食品、香精、香料、化妆品等行业。
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| 关 键 词： | 1 2-丙二醇 酯交换法 工艺改进 |
Research of 1,2 -Propylene Glycol Distillation Process |
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| DU Gui-qiang,TENG Wen-bin,ZHANG Rui-hua. Research of 1,2 -Propylene Glycol Distillation Process[J]. Shandong Chemical Industry, 2010, 39(10): 13-14,19 |
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| Authors: | DU Gui-qiang TENG Wen-bin ZHANG Rui-hua |
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| Affiliation: | DU Gui - qiang , TENG Wen - bin, ZHANG Rui - hua ( Shandong Hi - tech Chemical Group , Dongying 257105, China) |
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| Abstract: | A new purification process of 1,2 -propylene glycol was studied. The reason of 1,2 - propylene glycol easy to change color and pungent odor was analyzed, and a new distillation process was proposed. The product quality of l, 2 - propylene glycol was able to pharmaceutical grade （USP, EP standards） after the purified, and could be widely used in pharmaceutical, food, flavor, fragrance, cosmetics and other industries. |
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| Keywords: | 1,2 - propylene glycol transesterification process Improvement |
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