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日用化学工业 ›› 2014, Vol. 44 ›› Issue (7): 383-386.doi: 10.13218/j.cnki.csdc.2014.07.085

• 开发与应用 • 上一篇    下一篇

环路反应器制备聚甘油的研究

耿二欢1, 孙永强1, 孙晋源1, 张勇1, Martino Di Serio2   

  1. 1.中国日用化学工业研究院,山西 太原 030001;
    2.那不勒斯费德里克二世大学,意大利 那不勒斯 80126
  • 收稿日期:2014-01-17 发布日期:2019-04-08
  • 通讯作者: 孙永强,教授级高工,E-mail:syq3108@163.com。
  • 作者简介:耿二欢(1987-),女,河南许昌人,硕士研究生,电话:15535373653,E-mail:gengerjiayou@163.com。
  • 基金资助:
    国家国际科技合作专项资助项目(2013DFA42120)

Preparation of polyglycerol with loop reactor

GENG Er-huan1, SUN Yong-qiang1, SUN Jin-yuan1, ZHANG Yong1, Martino Di Serio2   

  1. 1.China Research Institute of Daily Chemical Industry,Taiyuan,Shanxi 030001,China;
    2.University of Naples Fedrico Ⅱ,Napoli 80126,Italy
  • Received:2014-01-17 Published:2019-04-08

摘要: 以工业甘油和自制催化剂为原料在环路反应器上制备聚甘油,通过监测反应过程中游离甘油含量和羟值的变化以确定甘油转化率和产物的平均聚合度。研究了反应温度、催化剂用量和反应器压力对甘油转化率及产品平均聚合度的影响。结果表明,环路反应器制备聚甘油的优化工艺条件为:反应温度240 ℃,催化剂用量2.0%,反应器压力0.2~0.3 MPa;此条件下甘油转化率可以达到99%以上,产品的平均聚合度能达到20以上。

关键词: 聚甘油, 环路反应器, 聚合度

Abstract: Polyglycerol was prepared in a loop reactor with industrial grade glycerol as starting material and catalyst self-made in laboratory.The free glycerol content and hydroxyl value of the product were measured to determine the conversion of glycerol and the average degree of polymerization,respectively.The effects of reaction temperature,dosage of catalyst and the operating pressure on glycerol conversion and degree of polymerization were investigated.The optimal process conditions were identified as:reaction temperature,240 ℃;dosage of catalyst,2.0%;operating pressure,0.2-0.3 MPa.The conversion of glycerol could reach 99% and the polymerization degree of the product obtained is higher than 20.

Key words: polyglycerol, loop reactor, polymerization degree

中图分类号: 

  • TQ649.4