Studying the Main Laws Governing the Base-Catalyzed Glycolysis of Polycarbonate Plastics

IF 0.7 Q4 ENGINEERING, CHEMICAL

Catalysis in Industry Pub Date : 2025-05-23 DOI:10.1134/S2070050424700405

T. A. Kurneshova, V. N. Sapunov, M. P. Sergeenkova, G. V. Dzhabarov, E. V. Varlamova, M. S. Voronov, R. A. Kozlovskii, E. P. Antoshkina

引用次数: 0

Abstract

This study is focused on the effect of various base catalysts on the glycolysis of plastics based on bisphenol A (BPA) polycarbonate (PC). It has been found that the chemical degradation of PC under the action of ethylene glycol (EG) leads to the formation of the following high-added value products: BPA (PC monomer) and BPA–ethylene carbonate (EC)/(EG) co-ethers (monohydroxyethyl ether of BPA (MHE-BPA), bishydroxyethyl ether of BPA (BHE-BPA)). A quantitative assessment of the reaction product yields has been conducted. It has been found that, at a 100% PC conversion, the product yields are the following (%): BPA, 33; MHE-BPA, 50; and BHE-BPA, 17. In addition, the efficiencies of using various alkaline agents as a catalyst depending on the type of metal have been compared in this study.

查看原文本刊更多论文

碱催化聚碳酸酯塑料糖酵解的主要规律研究

研究了不同碱催化剂对双酚A （BPA）聚碳酸酯（PC）基塑料糖酵解的影响。研究发现，PC在乙二醇（EG）作用下的化学降解可生成以下高附加值产品：双酚a （PC单体）和双酚a -碳酸乙烯(EC)/(EG)共醚（双酚a单羟乙基醚（MHE-BPA）、双酚a双羟乙基醚（BHE-BPA））。对反应产物的产率进行了定量评价。研究发现，在100%的PC转化率下，产物收率如下（%）：BPA, 33；MHE-BPA 50;BHE-BPA, 17。此外，本研究还比较了不同金属类型的碱性催化剂的催化效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Catalysis in Industry ENGINEERING, CHEMICAL-

CiteScore

1.30

自引率

14.30%

发文量

期刊介绍： The journal covers the following topical areas: Analysis of specific industrial catalytic processes: Production and use of catalysts in branches of industry: chemical, petrochemical, oil-refining, pharmaceutical, organic synthesis, fuel-energetic industries, environment protection, biocatalysis; technology of industrial catalytic processes (generalization of practical experience, improvements, and modernization); technology of catalysts production, raw materials and equipment; control of catalysts quality; starting, reduction, passivation, discharge, storage of catalysts; catalytic reactors.Theoretical foundations of industrial catalysis and technologies: Research, studies, and concepts : search for and development of new catalysts and new types of supports, formation of active components, and mechanochemistry in catalysis; comprehensive studies of work-out catalysts and analysis of deactivation mechanisms; studies of the catalytic process at different scale levels (laboratory, pilot plant, industrial); kinetics of industrial and newly developed catalytic processes and development of kinetic models; nonlinear dynamics and nonlinear phenomena in catalysis: multiplicity of stationary states, stepwise changes in regimes, etc. Advances in catalysis: Catalysis and gas chemistry; catalysis and new energy technologies; biocatalysis; nanocatalysis; catalysis and new construction materials.History of the development of industrial catalysis.