典型文献
Solubility determination and thermodynamic modeling of bis-2-hydroxyethyl terephthalate(BHET)in different solvents
文献摘要:
Studies on the degradation process of waste polyethylene terephthalate(PET)have become increasingly mature,but there are relatively few studies on the separation of degradation products.The products con-tain many components and the separation of which is difficult.Therefore,the study on phase equilibrium thermodynamics of bis-2-hydroxyethyl terephthalate(BHET)is of great theoretical significance and prac-tical value to provide basic data for the BHET crystallization separation.In this work,the degraded prod-ucts were purified and characterized.The solubility of BHET in methanol,ethanol,ethylene glycol,water and the mixture of ethylene glycol+water were determined by static method.The experimental results were correlated with different models,such as ideal solution(IS)model,λh equation,Apelblat equation and NRTL model.Based on the van't Hoff equation,the mixing Gibbs energy,enthalpy and entropy were calculated.From this work,the basic data which can be used to guide the crystallization process of BHET were obtained,including solubility data,correlation model and thermodynamic properties.
文献关键词:
中图分类号:
作者姓名:
Haoyu Yao;Dongxia Yan;Xingmei Lu;Qing Zhou;Yinan Bao;Junli Xu
作者机构:
Beijing Key Laboratory of Ionic Liquids Clean Process,CAS Key Laboratory of Green Process and Engineering,State Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;School of Chemical and Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;Sino Danish College,University of Chinese Academy of Sciences,Beijing 100049,China;Innovation Academy for Green Manufacture,Chinese Academy of Sciences,Beijing 100190,China;College of Chemical Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617,China
文献出处:
引用格式:
[1]Haoyu Yao;Dongxia Yan;Xingmei Lu;Qing Zhou;Yinan Bao;Junli Xu-.Solubility determination and thermodynamic modeling of bis-2-hydroxyethyl terephthalate(BHET)in different solvents)[J].中国化学工程学报(英文版),2022(05):294-300
A类:
glycol+water
B类:
Solubility,determination,modeling,bis,hydroxyethyl,terephthalate,BHET,different,solvents,Studies,degradation,process,waste,polyethylene,PET,have,become,increasingly,mature,but,there,are,relatively,few,studies,separation,products,con,many,components,which,difficult,Therefore,study,phase,equilibrium,thermodynamics,great,theoretical,significance,prac,value,provide,basic,data,crystallization,In,this,work,degraded,were,purified,characterized,solubility,methanol,mixture,determined,by,static,method,experimental,results,correlated,models,such,ideal,solution,IS,equation,Apelblat,NRTL,Based,van,Hoff,mixing,Gibbs,energy,enthalpy,entropy,calculated,From,used,guide,obtained,including,correlation,properties
AB值:
0.551068
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