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Study on the thermodynamic properties of adsorption of ethyl benzoate and diethyl phthalate by phenolic resin adsorbents
Alternative TitleStudy on the thermodynamic properties of adsorption of ethyl benzoate and diethyl phthalate by phenolic resin adsorbents
Wang Z1; Shi ZQ1; Shi RF1; Fan YG1; Yang YZ1
2004
Source PublicationCHINESE JOURNAL OF POLYMER SCIENCE
ISSN0256-7679
Volume22Issue:3Pages:239-245
AbstractThis paper presents experimental observations on the adsorption of individual solutes by a simple thermodynamic framework, and the equilibrium adsorption of ethyl benzoate and diethyl phthalate on phenolic resin adsorbent in hexane solutions within the temperature range of 293-313 K. The experimental results show that the Freundlich adsorption law is applicable to the adsorption of ethyl benzoate and diethyl phthalate on the adsorbent, since all the correlative factors R' are larger than 0.99. The negative values of all the isosteric adsorption enthalpies for ethyl benzoate and diethyl phthalate indicate that they undergo exothermic processes, while their magnitudes (19-28 kJ/mol) manifest a hydrogen bonding sorption process. Other thermodynamic properties: the free energy changes and the entropy change associated with the adsorption have been calculated from the Gibbs adsorption equation and the Gibbs-Helmholtz equation.
Other AbstractThis paper presents experimental observations on the adsorption of individual solutes by a simple thermodynamic framework, and the equilibrium adsorption of ethyl benzoate and diethyl phthalate on phenolic resin adsorbent in hexane solutions within the temperature range of 293-313 K. The experimental results show that the Freundlich adsorption law is applicable to the adsorption of ethyl benzoate and diethyl phthalate on the adsorbent, since all the correlative factors R' are larger than 0.99. The negative values of all the isosteric adsorption enthalpies for ethyl benzoate and diethyl phthalate indicate that they undergo exothermic processes, while their magnitudes (19-28 kJ/mol) manifest a hydrogen bonding sorption process. Other thermodynamic properties: the free energy changes and the entropy change associated with the adsorption have been calculated from the Gibbs adsorption equation and the Gibbs-Helmholtz equation.
Keywordphenolic resin adsorbent adsorption ethyl benzoate diethyl plithalate
Indexed ByCSCD
Language英语
CSCD IDCSCD:1846323
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/143240
Collection中国科学院金属研究所
Affiliation1.南开大学
2.中国科学院金属研究所
Recommended Citation
GB/T 7714
Wang Z,Shi ZQ,Shi RF,et al. Study on the thermodynamic properties of adsorption of ethyl benzoate and diethyl phthalate by phenolic resin adsorbents[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2004,22(3):239-245.
APA Wang Z,Shi ZQ,Shi RF,Fan YG,&Yang YZ.(2004).Study on the thermodynamic properties of adsorption of ethyl benzoate and diethyl phthalate by phenolic resin adsorbents.CHINESE JOURNAL OF POLYMER SCIENCE,22(3),239-245.
MLA Wang Z,et al."Study on the thermodynamic properties of adsorption of ethyl benzoate and diethyl phthalate by phenolic resin adsorbents".CHINESE JOURNAL OF POLYMER SCIENCE 22.3(2004):239-245.
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