| 第 34 卷第 3 期 |  | Vol. 34 No. 3 | | 2004 年 6 月 | Jun 2004 |
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所属栏目：其它
β-巯基丙酸的合成 |
| 姜旭; 陈稼轩; 龙春梅; 蒋文伟(四川大学化工学院; 四川成都) |
| 摘 要：以丙烯腈和硫氢化钠为主要原料,通过正交试验考察了原料摩尔比、加成反应温度、水解时间及硫粉用量4种因素对合成β 巯基丙酸收率的影响。实验得到优惠工艺条件:在t=45℃下,滴加丙烯腈1 5h,硫粉用量2 7g,水解时间为3h的反应条件下,β 巯基丙酸的收率为87%,明显高于文献所介绍收率。结果表明,该路线原料易得、工艺简单、产品纯度高、后处理方便,是一条可取的工艺路线。 |
| 关键词：β-巯基丙酸; 丙烯腈; 硫氢化钠 |
| 中图分类号：TQ225.12 文献标识码：A 文章编号：1009-9212(2004)03-0048-02 |
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| Synthesis of β-mercaptopropionic Acid |
| JIANG Xu; CHENG Jia-xuan; LONG Chun-mei; JIANG Wen-wei （Department of Chemical Engineering; Sichuan University; Chengdu 610065; China） |
| Abstract：Acrylonitrile and sodium hydrosulfide were used as main materials for the synthesis of β-mercaptopropionic acid. The influences of four factors(the mole ratio of the raw materials, the addition reaction temperature, the hydrolysis time, the powdered sulfur usage) were investigated. Under the optimum conditions(T=45 ℃, the mole ratio of the AN and sodium hydrosulfide is 1.0∶1.4, the usage of the sulfur is 2.7 g, the hydrolysis time is 3 h) the yield of the β-mercaptopropionic acid is 87%,obviously higher tha... |
| Key words：β-mercaptopropionic acid; acrylonitrile; sodium hydrosulfide |
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收稿日期：2003-11-23
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