Effect of the Acidic Treatment on the Catalitic Properties of Natural Aluminosilicates in Glycerol Acetylation

IF 0.7 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Theoretical and Experimental Chemistry Pub Date : 2024-06-01 DOI:10.1007/s11237-024-09800-0

A. S. Davtian, D. G. Chikhichin, O. O. Levchenko, G. L. Kamalov

引用次数: 0

Abstract

The kinetics of the reaction of glycerol with acetic acid in the presence of natural aluminosilicates treated with nitric acid has been investigated. The influence of a molar ratio of the reagents, the reaction temperature and the catalyst mass fraction on glycerol conversion, as well as a rate of the accumulation of the products and their selectivities has been studied. It is established that in presence of clinoptilolite and trepel, monoacetin is the main product. In the case of bentonite, with the increase in the molar fraction of acetic acid and the catalyst mass fraction, the selectivity of monoacetin decreases due to a diacetin accumulation.

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酸性处理对天然铝硅酸盐在甘油乙酰化过程中催化特性的影响

研究了在经硝酸处理的天然铝硅酸盐存在下甘油与醋酸反应的动力学。研究了试剂的摩尔比、反应温度和催化剂质量分数对甘油转化率的影响，以及产物的累积率和选择性。结果表明，在有铮沸石和曲沸石存在的情况下，单乙酸酯是主要产物。在膨润土的情况下，随着乙酸摩尔分数和催化剂质量分数的增加，由于双乙炔的积累，单乙炔的选择性降低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Theoretical and Experimental Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.60

自引率

10.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Theoretical and Experimental Chemistry is a journal for the rapid publication of research communications and reviews on modern problems of physical chemistry such as: a) physicochemical bases, principles, and methods for creation of novel processes, compounds, and materials; b) physicochemical principles of chemical process control, influence of external physical forces on chemical reactions; c) physical nanochemistry, nanostructures and nanomaterials, functional nanomaterials, size-dependent properties of materials.

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