Direct Separation of para-Xylene from Xylene Isomers by a Zinc Bipyrazolate Framework

IF 4.7 2区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Pub Date : 2025-07-16 DOI:10.1021/acs.inorgchem.5c02625

Jia-Qi He, Wen-Bin Li, Hao Zhuo, Xiyu Song, Xiao-Feng Zhong, Ming Xue*, Rui-Biao Lin*, Jie-Peng Zhang* and Xiao-Ming Chen,

引用次数: 0

Abstract

Separation of xylene isomers is an important challenge for the chemical industry. Here, we report a new zinc bipyrazolate framework MAF-70 for the separation of xylene isomers, which contains square pore channels of 8.7× 8.7 Å². MAF-70 exhibits a rare adsorption preference of ortho-xylene (oX) > meta-xylene (mX) > para-xylene (pX) with high selectivity for oX/pX and mX/pX (12.0 and 4.0, respectively), facilitating direct purification of pX (99.1+% purity) from a xylenes mixture, which is validated by column separation experiments. Modeling study indicates that the restricted diffusion of pX accounts for such separation.

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双吡甲酸锌框架直接分离对二甲苯与二甲苯异构体的研究。

二甲苯异构体的分离是化工行业面临的一个重要挑战。在这里，我们报道了一种新的双吡甲酸锌框架MAF-70，用于二甲苯异构体的分离，它含有8.7× 8.7的方形孔通道Å2。MAF-70对邻二甲苯（oX）、间二甲苯（mX）、对二甲苯（pX）具有良好的吸附偏好，对oX/pX和mX/pX具有较高的选择性（分别为12.0和4.0），可直接从二甲苯混合物中纯化pX（纯度为99.1+%），柱分离实验验证了这一点。模型研究表明，pX的扩散受限是造成这种分离的原因。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Inorganic Chemistry 化学-无机化学与核化学

CiteScore

7.60

自引率

13.00%

发文量

1960

审稿时长

1.9 months

期刊介绍： Inorganic Chemistry publishes fundamental studies in all phases of inorganic chemistry. Coverage includes experimental and theoretical reports on quantitative studies of structure and thermodynamics, kinetics, mechanisms of inorganic reactions, bioinorganic chemistry, and relevant aspects of organometallic chemistry, solid-state phenomena, and chemical bonding theory. Emphasis is placed on the synthesis, structure, thermodynamics, reactivity, spectroscopy, and bonding properties of significant new and known compounds.