第 38 卷第 4 期 |  | Vol. 38 No. 4 | 2008 年 8 月 | Aug 2008 |
|
所屬欄目:有機合成原料
以甘油和工業(yè)鹽酸為原料合成環(huán)氧氯丙烷新工藝 |
辜高龍
(江西省化工研究所 精細化工室,江西 南昌,330029) |
摘 要:介紹了環(huán)氧氯丙烷合成新工藝:在催化劑和添加劑存在下,甘油與工業(yè)鹽酸反應制得二氯丙醇,然后二氯丙醇與堿反應制得環(huán)氧氯丙烷產(chǎn)品。研究了主要因素對工藝的影響。優(yōu)化條件為:在5#催化劑和添加劑存在下,甘油氯代反應溫度為115±2℃,回流比為1∶3;環(huán)氧化反應溫度為90℃,反應時(shí)間為15 min。在此條件下總收率(以甘油計)為84.6%,產(chǎn)品含量≥99.5%。 |
關(guān)鍵詞:環(huán)氧氯丙烷;甘油;工業(yè)鹽酸;二氯丙醇;合成 |
中圖分類(lèi)號:TQ223.2+6 文獻標識碼:B 文章編號:1009-9212(2008)04- 0049-04 |
|
A New Synthetic Procedure of Epichlorohydrin from Glycerol and Industrial Hydrochloric Acid |
GU Gao-long
(Department of Fine Chemistry, Jiangxi Research Institute of Chemical Industry, Nanchang 330029,China) |
Abstract:A new synthetic procedure of epichlorohydrin was described. Epichlorohydrin was synthesized from alkali and glycerol dichlorohydrin which was synthesized from glycerol and industrial hydrochloric acid in the presence of catalyst and additive. The chief factors affecting on the result of new synthesis were investigated. Suitable conditions were obtained as follow:in the presence of 5# catalyst and additive,the chlorating reaction temperature of glycerol was 115±2℃,the reflux ratio 1∶3,the epoxidation temperature 90℃ and time 15 min. Under the suitable conditions,the overall yield (by glycerol) was 84.6% and the content of product was over 99.5%. |
Key words:epichlorohydrin;glycerol;industrial hydrochloric acid;glycerol dichlorohydrin;sythesis |
|
作者簡(jiǎn)介:辜高龍(1965-),男,江西進(jìn)賢人,高級工程師,從事精細化工產(chǎn)品研發(fā)工作。(E-mail:gugaolong2008hl@sina.com)
|
收稿日期:2008-06-26
|
|