催化学报 ›› 2019, Vol. 40 ›› Issue (11): 1810-1819.DOI: 10.1016/S1872-2067(19)63368-1

• 论文 • 上一篇    

羟基磷灰石负载金催化丙酮醇与甲醇氧化酯化合成丙酮酸甲酯:酸碱性质的基本作用

Yan Wana, Congcong Zhenga, Xianchi Leia, Mengqi Zhuanga, Jinhan Lina, Wenda Hua, JingdongLina,c, Shaolong Wana,b,c, Yong Wangd   

  1. a 厦门大学化学化工学院, 福建厦门 361005, 中国;
    b 厦门大学能源材料化学协同创新中心, 福建厦门 361005, 中国;
    c 厦门大学醇醚酯化工清洁生产国家工程实验室, 福建厦门 361005, 中国;
    d 华盛顿州立大学化学工程与生物工程沃伊兰学院, 普尔曼, 华盛顿 99164, 美国
  • 收稿日期:2019-03-27 修回日期:2019-03-29 出版日期:2019-11-18 发布日期:2019-09-06
  • 通讯作者: Shaolong Wan
  • 基金资助:
    国家自然科学基金(91545114,91545203,21576227);厦门大学化学与化工985项目.

Oxidative esterification of acetol with methanol to methyl pyruvate over hydroxyapatite supported gold catalyst: Essential roles of acid-base properties

Yan Wana, Congcong Zhenga, Xianchi Leia, Mengqi Zhuanga, Jinhan Lina, Wenda Hua, Jingdong Lina,c, Shaolong Wana,b,c, Yong Wangd   

  1. a College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China;
    b Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, Fujian, China;
    c National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, Xiamen University, Xiamen 361005, Fujian, China;
    d Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99164, United States
  • Received:2019-03-27 Revised:2019-03-29 Online:2019-11-18 Published:2019-09-06
  • Contact: Shaolong Wan
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (91545114, 91545203, and 21576227), and the 985 Program of the Chemistry and Chemical Engineering disciplines of Xiamen University.

摘要: 丙酮醇是一种可由木质纤维素类生物质经分步或快速热裂解获得的主要轻质含氧化合物.本文报道了金基催化剂上,丙酮醇可经氧化酯化反应被选择性转化为重要的精细化学品——丙酮酸甲酯.研究结果表明具有适宜强度和比例酸碱位点的两性载体负载金催化剂能够促进氧化酯化反应进行,同时不加快羟醛缩合缩合和Cannizzaro反应等副反应进行.其中,羟基磷灰石(钙磷比为1.62)负载金催化剂上,丙酮醇转化率为62%,丙酮酸甲酯选择性可达87%.

关键词: 丙酮醇, 酸碱性质, 金, 羟基磷灰石, 丙酮酸甲酯

Abstract: Acetol is a major light oxygenate and readily produced from staged or fast pyrolysis of lignocellulose biomass. Herein we report that acetol can be selectively converted to methyl pyruvate, an important fine chemical, through oxidative esterification over Au-based catalysts. Detailed experimental studies showed that Au on amphoteric supports with appropriate strength and balanced ratio of acid and base sites can facilitate the desired oxidative-esterification pathway without accelerating undesired aldol-condensation or Cannizzaro reactions. In particular, hydroxyapatite (with a Ca/P ratio of 1.62) supported Au achieved 87% selectivity to methyl pyruvate at an acetol conversion of 62%.

Key words: Acetol, Acid-base properties, Gold, Hydroxyapatite, Methyl pyruvate