典型文献
Process parameters influence on zone refining and thermodynamics analysis of 1,2-diphenylethane
文献摘要:
Effective distribution coefficients of 9 impurities in 1,2-diphenylethane have been calculated by direc-tional crystallization under different ambient frozen temperature.The effect of varied zone size,temper-ature difference between the melt and ambient frozen environment,number of zone on purity of 1,2-diphenylethane have been also investigated during the process of zone refining.The results indicate that the product purity in the intermediate purified region with varied zone size is higher 0.04%-0.2%than that with constant zone size.The product purity increases with temperature difference between the melt and ambient frozen environment.The appropriate temperature difference is adopted 50℃.The product purity in the intermediate region of sample bar with 2 molten zones is higher 0.05%-0.43%than that with 1 molten zone.In addition,the change of enthalpy and entropy between impurities and 1,2-diphenvlethane have been determined.
文献关键词:
中图分类号:
作者姓名:
Yabing Qi;Jun Li
作者机构:
School of Chemistry and Chemical Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China;School of Chemical Engineering,Sichuan University,Chengdu 610065,China
文献出处:
引用格式:
[1]Yabing Qi;Jun Li-.Process parameters influence on zone refining and thermodynamics analysis of 1,2-diphenylethane)[J].中国化学工程学报(英文版),2022(02):338-343
A类:
diphenylethane,diphenvlethane
B类:
Process,parameters,influence,refining,thermodynamics,analysis,Effective,distribution,coefficients,impurities,have,been,calculated,by,direc,tional,crystallization,under,different,ambient,frozen,temperature,effect,varied,size,difference,between,melt,environment,number,purity,also,investigated,during,process,results,indicate,that,product,intermediate,purified,region,higher,constant,increases,appropriate,adopted,sample,bar,molten,zones,In,addition,change,enthalpy,entropy,determined
AB值:
0.443716
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