| 第 45 卷第 2 期 |  | Vol. 45 No. 2 | | 2015 年 4 月 | Apr 2015 |
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所屬欄目：功能材料
甘油法合成環(huán)氧氯丙烷環(huán)化工藝條件的研究 |
| 劉 沖，李 珊，杜曉艷，位思夢(mèng)，芮玉蘭*
（河北聯(lián)合大學(xué) 化學(xué)工程學(xué)院，河北 唐山 063004） |
| 摘 要：針對甘油法合成環(huán)氧氯丙烷第二階段-環(huán)化階段的工作，以氫氧化鈉和氫氧化鈣分別作為堿源，通過(guò)平行實(shí)驗考察了環(huán)化階段的優(yōu)化工藝條件。氫氧化鈉為堿源，反應溫度為55℃，反應時(shí)間為35 min，n（氫氧化鈉）∶n（二氯丙醇）=1.10∶1.00時(shí)，環(huán)化收率為66.52%；氫氧化鈣為堿源，反應溫度為80℃，反應時(shí)間為10 min，n［1／2Ca（OH）2］∶n（二氯丙醇）=1.10∶1.00時(shí)，環(huán)化收率為69.52%。 |
| 關(guān)鍵詞：甘油；二氯丙醇；環(huán)氧氯丙烷 |
| 中圖分類(lèi)號：TQ223 文獻標識碼：A 文章編號：1009-9212（2015）02-0066-04 |
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| Study on the Cyclization Reaction in the Synthesis of Epichlorohydrin from Glycerol |
| LIU Chong, LI Shan, DU Xiao-yan, WEI Si-meng, RUI Yu-lan*
(College of Chemical Engineering, Hebei United University, Tangshan 063004, China) |
| Abstract：The optimal conditions were evaluated for the preparation of epichlorohydrin using sodium hydroxide or calcium hydroxide as the base for the cyclization reaction. When sodium hydroxide was selected as the base, the reaction temperature was 55℃; the reaction time was 35 minutes; and the molar ratio of NaOH to DCP was 1.1∶1.0; the yield for ECH could reach up to 66.52%. When calcium hydroxide was used as the base for the cyclization reaction, the reaction temperature was 80℃; the reaction time was 10 minutes; the molar ratio of 1/2Ca(OH)2 to DCP was 1.1∶1.0; the yield for ECH could reach up to 69.52%. |
| Key words：glycerin; dichloropropanol; epichlorohydrin |
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作者簡(jiǎn)介：劉 沖（1990-），男，河北保定人，碩士，研究方向：精細化學(xué)品合成（E-mail：hbliuc@163.com）。
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聯(lián) 系 人：芮玉蘭，教授，研究方向：精細化學(xué)品合成（E-mail：tsruiyulan@163.com）。
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收稿日期：2015-02-09
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