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日用化学工业 ›› 2015, Vol. 45 ›› Issue (7): 381-384.doi: 10.13218/j.cnki.csdc.2015.07.005

• 开发与应用 • 上一篇    下一篇

非碱性条件下磷酸镍钴分子筛对甘油催化氧化反应研究

王增龙, 王超, 刘雷   

  1. 太原理工大学 精细化工研究所,山西 太原 030024
  • 收稿日期:2015-04-09 修回日期:2015-06-29 发布日期:2019-04-10
  • 通讯作者: 刘 雷,教授,博士生导师,电话:13934227874,E-mail:liulei@tyut.edu.cn。
  • 作者简介:王增龙(1988-),男,内蒙古人,硕士研究生,电话:18334706213,E-mail:951031343@qq.com。
  • 基金资助:
    国家优秀青年科学基金资助项目(21322608); 全国优秀博士学位论文作者专项资金资助项目(201350); 山西省青年拔尖人才支持项目

Study of catalytic oxidation of glycerol on cobalt-nickel phosphate molecular sieve under non-alkaline condition

WANG Zeng-long, WANG Chao, LIU Lei   

  1. Research Institute of Special Chemicals,Taiyuan University of Technology,Taiyuan,Shanxi 030024,China
  • Received:2015-04-09 Revised:2015-06-29 Published:2019-04-10

摘要: 采用水热合成法制备了磷酸镍钴分子筛(Co-VSB-1),将焙烧后的样品作为催化剂,在非碱性条件下以H2O2作为氧化剂用于甘油的催化氧化反应,考察了反应时间、温度以及H2O2和甘油摩尔比对甘油催化活性和选择性的影响。结果表明:Co-VSB-1作为催化剂对甘油酸和甲酸具有较高的选择性,当n(H2O2)∶n(甘油)=2∶1,反应时间为4 h,反应温度为70 ℃时,甘油的转化率为8.2%,甘油酸、甲酸和乙醇酸的选择性分别为45.1%,49.9%和5.0%。同时,通过催化性能实验,发现Co-VSB-1骨架中的钴离子作为催化活性中心对甘油的氧化起到了催化作用。

关键词: 甘油, 磷酸镍钴, 催化氧化, 非碱性

Abstract: Cobalt-nickel phosphate molecular sieve (Co-VSB-1) was prepared adopting hydrothermal method.The calcined Co-VSB-1 was used as catalyst for the oxidation of glycerol with H2O2 as oxidant under non-alkaline condition.The effect of reaction conditions,such as the reaction time,temperature,H2O2/glycerol molar ratio,on the conversion and selectivity of glycerol oxidation were investigated in detail.The results showed that the Co-VSB-1 displays rather high selectivity with main oxidation products of glyceric acid and formic acid.Under the reaction conditions as:H2O2/glycerol molar ratio of 2,reaction time of 4 h and reaction temperature of 70 ℃,the conversion ratio of glycerol was 8.2% and the selectivity of glyceric acid,formic acid and glycolic acid was 45.1%,49.9% and 5.0%,respectively.Meanwhile,catalyst performance test result showed that the cobalt ions in the framework of Co-VSB-1 are responsible for the catalytic oxidation of glycerol.

Key words: glycerol, cobalt-nickel phosphate, catalytic oxidation, non-alkaline

中图分类号: 

  • TQ645.5