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日用化学工业（中英文）

日用化学工业 ›› 2019, Vol. 49 ›› Issue (1): 19-23.doi: 10.3969/j.issn.1001-1803.2019.01.005

• 开发与应用 • 上一篇    下一篇

系列窄分布醇醚羧酸盐氧化法制备及性能研究

徐福利,张威(),王丰收   

  1. 上海发凯化工有限公司,上海 201505
  • 收稿日期:2018-05-28 修回日期:2018-11-26 出版日期:2019-01-20 发布日期:2019-03-06
  • 通讯作者: 张威
  • 作者简介:徐福利（1987-）,男,河南人,中级工程师,硕士,电话：18321985261,E-mail： 846218788@qq.com。
  • 基金资助:
    上海市优秀技术带头人基金资助项目(16XD1420800)

Research of the performance of a series of narrow distribution fatty alcohol ether carboxylates prepared by oxidation

XU Fu-li,ZHANG Wei(),WANG Feng-shou   

  1. Shanghai Finechemical Co., Ltd., Shanghai 201505, China
  • Received:2018-05-28 Revised:2018-11-26 Online:2019-01-20 Published:2019-03-06
  • Contact: Wei ZHANG

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摘要：

以系列窄分布醇醚 （AEO3/AEO5/AEO7/AEO9） 、氧气和氢氧化钠为原料氧化法合成窄分布醇醚羧酸盐 （AEC3/AEC5/AEC7/AEC9） ,并优化窄分布AEC7 （7EO醇醚羧酸盐） 合成工艺条件,同时考察了系列窄分布醇醚羧酸盐在不同pH值下的表面张力、泡沫性能和润湿性能。结果表明,钯碳负载催化剂用量为醇醚质量的0.4% （以氯化钯计） ,AEC7合成优化条件为：反应温度75 ℃,氧压0.03 MPa,反应转速700 r/min,原料窄分布AEO7与氢氧化钠摩尔比1∶1.02,产率达到93.8%;体系酸碱度对窄分布醇醚羧酸盐性能影响明显,在中性条件下,与AEC3/AEC5/AEC9相比,AEC7表面张力最大为41.66 mN/m;酸性条件下,AEC3 （3EO醇醚羧酸盐） 发泡性最弱,碱性条件下,AEC3发泡性最强;在中性和碱性条件下,窄分布AEC3和AEC5/AEC7/AEC9相比,在润湿和表面张力方面具有明显优势。

关键词: 窄分布醇醚羧酸盐, 氧化法, 合成, 性能

Abstract:

A series of fatty alcohol ether carboxylates （AEC） with narrow distribution （AEC3/AEC5/AEC7/AEC9） were synthesized by oxidation and using narrow distribution AEO （AEO3/AEO5/AEO7/AEO9）, oxygen and sodium hydroxide as raw materials. The process conditions of synthesis of narrow distribution AEC7 （7EO units） were optimized. The surface tension, foaming performance and wettability of a series of narrow distribution AEC at different pH values were also investigated. The results show that： Given that the palladium carbon supported catalyst is in an amount corresponding to 0.4% of the mass of alcohol ether （by palladium chloride）, the optimized conditions to synthesize AEC7 are as follows： the reaction temperature is 75 ℃, the oxygen pressure is 0.03 MPa, the rotating speed is 700 r/min, the molar ratio of narrow distribution AEO7 to NaOH is 1∶1.02, and the yield thus obtained can reach 93.8%; The pH value has significant effects on the properties of AEC with narrow distribution. Among the AECs under investigation, the surface tension of AEC7 being 41.66 mN/m is the highest compared with AEC3/AEC5/AEC9 under neutral conditions; AEC3 （3EO units） has the weakest foaming performance under acidic conditions and the strongest foaming performance under alkaline conditions; Among the narrow distribution AECs, AEC3 has obvious advantages in wetting and surface tension compared with AEC5/AEC7/AEC9 under neutral and alkaline conditions.

Key words: narrow distribution fatty alcohol ether carboxylate, oxidation, synthesis, performance

中图分类号: 

  • TQ423