Journal
MICROPOROUS AND MESOPOROUS MATERIALS
Volume 158, Issue -, Pages 229-234Publisher
ELSEVIER
DOI: 10.1016/j.micromeso.2012.03.039
Keywords
MIL-125(Ti)_NH2; Xylene isomers; Ethylbenzene; Adsorption; Separation
Categories
Funding
- European Community [228862]
- FEDER through COMPETE - Programa Operacional Factores de Competitividade
- FCT - Fundacao para a Ciencia e a Tecnologia
- [PEst-C/EQB/LA0020/2011]
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The synthesis of the microporous crystalline titanium(IV) 2-amino-terephthalate (MIL-125(Ti)_NH2; MIL stands for Materials from Institut Lavoisier) was improved at the laboratory scale (40 g) in order to be evaluated as powder for the selective adsorption and separation of xylene isomers and ethylbenzene in liquid phase using n-heptane as eluent. Multi-component breakthrough experiments, conducted at 313 K. have shown a preferential adsorption of ethylbenzene or para-xylene depending on the ethylbenzene concentration. Thus, MIL-125(Ti)_NH2 solid is para-xylene selective in liquid phase in presence of low ethylbenzene concentrations while at higher ethylbenzene concentrations it becomes ethylbenzene selective. (C) 2012 Elsevier Inc. All rights reserved.
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