| 第 34 卷第 3 期 |  | Vol. 34 No. 3 | | 2004 年 6 月 | Jun 2004 |
|
所屬欄目：其它
β-巰基丙酸的合成 |
| 姜旭; 陳稼軒; 龍春梅; 蔣文偉(四川大學(xué)化工學(xué)院; 四川成都) |
| 摘 要：以丙烯腈和硫氫化鈉為主要原料,通過(guò)正交試驗考察了原料摩爾比、加成反應溫度、水解時(shí)間及硫粉用量4種因素對合成β 巰基丙酸收率的影響。實(shí)驗得到優(yōu)惠工藝條件:在t=45℃下,滴加丙烯腈1 5h,硫粉用量2 7g,水解時(shí)間為3h的反應條件下,β 巰基丙酸的收率為87%,明顯高于文獻所介紹收率。結果表明,該路線(xiàn)原料易得、工藝簡(jiǎn)單、產(chǎn)品純度高、后處理方便,是一條可取的工藝路線(xiàn)。 |
| 關(guān)鍵詞：β-巰基丙酸; 丙烯腈; 硫氫化鈉 |
| 中圖分類(lèi)號：TQ225.12 文獻標識碼：A 文章編號：1009-9212(2004)03-0048-02 |
|
| 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 |
|
收稿日期：2003-11-23
|
| 閱讀全文 |
|