固体酸CuCo2S4催化制备呋喃基二酯化合物
Preparation of furfuran-based diester chemicals catalyzed by CuCo2S4 solid acid
王爽 1蔡伟杰 1王大鸷1
作者信息
- 1. 大连工业大学 轻工与化学工程学院,辽宁 大连 116034
- 折叠
摘要
采用2,5-四氢呋喃二甲醇(THFDM)与不同碳链长度脂肪酸(正丁酸、正癸酸和棕榈酸)为原料,以新型多孔状金属有机骨架材料固体酸CuCo2S4为催化剂,催化合成呋喃基二酯化合物.通过单因素实验研究醇酸摩尔比、催化剂添加量、反应温度以及反应时间对脂肪酸转化率的影响.实验结果表明,在醇酸摩尔比1:1、催化剂添加量1.25％(以THFDM质量计)、反应温度140 ℃、反应时间7 h条件下,正丁酸、正癸酸和棕榈酸转化率分别达到84.57％、94.22％与87.20％.通过傅里叶红外光谱和核磁共振碳谱对提纯后的产物进行分析,证明产物为具有对称结构的呋喃基二酯化合物.理化性质表明2,5-四氢呋喃二丁酸酯在润滑油助剂领域具有潜在的应用价值.
Abstract
Furfuran-based diester chemicals were prepared through the esterification reaction between 2,5-bishydroxymethyl tetrahydrofuran(THFDM)and fatty acids with different chain lengths(n-butyric acid,n-decanoic acid,and palmitic acid)with a novel type of porous solid acid MOF catalyst(CuCo2S4).The effects of alcohol/acid ratio,catalyst dosage,reaction temperature and time on the esterification reaction were investigated.The results showed that the conversion efficiencies of n-butyric acid,n-decanoic acid and palmitic acid were as high as 84.57％,94.22％and 87.20％,respectively,under the conditions of 1:1 molar ratio of THFDM to fatty acid,1.25％dosage of catalyst(on the basis of THFDM)at 140 ℃ for 7 h.The results of FT-IR and 13C NMR spectra of purified products showed that the products possessed the symmetric diester structure,and their basic physicochemical properties indicated the potential application of 2,5-tetrahydrofuran dibutyrate in the field of lubricating oil additives.
关键词
润滑油添加剂/2,5-四氢呋喃二甲醇/固体酸/呋喃基二酯化合物Key words
lubricant additive/THFDM/solid acid/furfuran-based diester chemicals引用本文复制引用
基金项目
辽宁省教育厅服务地方科学研究项目(J2020001)
出版年
2024
国家科技期刊平台
NSTL
万方数据