Optimization of Ti–BA efficiently for the catalytic alcoholysis of waste PET using response surface methodology
Ruiyang Wen, Guo‐Liang Shen, Yang Yu, Shijie Xu, Jie Wei, Yue Huo, Sijin Jiang
Abstract
response surface experiments and found to be a EG/PET mass ratio of 3.59, temperature of 217 °C and reaction time of 3.3 h. Under these conditions, the amount of the catalyst required was only 2% of the mass of the PET, and the yield of BHET reached 90.01% and under the same conditions, the yield of BHET could still reach 80.1%. Based on the experimental results, the mechanism of alcoholysis, Ti-BA catalyst activated ethylene glycol deprotonation to achieve the progressive degradation of polymers. This experiment provides a reference for the degradation of polymer waste and other transesterification reactions.
Topics & Concepts
DepolymerizationCatalysisPolyethylene terephthalateYield (engineering)Ethylene glycolTransesterificationPolymerSolventTitaniumEthylenePolymer chemistryDimethyl terephthalateChemistryPolyesterMaterials scienceOrganic chemistryMetallurgyComposite materialbiodegradable polymer synthesis and propertiesMicroplastics and Plastic PollutionRecycling and Waste Management Techniques