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A kind of composite material capable of separating mixed xylene and its preparation method

A technology of composite materials and mixed xylenes, applied in the direction of adsorption purification/separation, chemical instruments and methods, and other chemical processes, can solve the problems of inability to separate mixed xylenes, etc., and achieve the effect of enhanced supramolecular interaction

Inactive Publication Date: 2016-06-01
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve the problem that currently reported materials cannot separate mixed xylenes

Method used

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  • A kind of composite material capable of separating mixed xylene and its preparation method
  • A kind of composite material capable of separating mixed xylene and its preparation method
  • A kind of composite material capable of separating mixed xylene and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] After 72.80g of APPP and 40.8g of TCNQ were dissolved in toluene solvent, after standing still for 24 hours, the solvent was removed under vacuum and decompression, and the porous composite material was obtained by drying.

Embodiment 2

[0027] After 72.80g of APPP and 40.8g of TCNQ were dissolved in chlorobenzene solvent, after standing still for 24 hours, the solvent was removed under vacuum and decompression, and the porous composite material was obtained by drying.

Embodiment 3

[0029] 72.80g APPP and 40.8g TCNQ were dissolved in a mixed solvent of toluene and chlorobenzene (volume ratio 1:1), and after standing still for 24 hours, the solvent was removed under vacuum and dried to obtain a porous composite material.

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PUM

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Abstract

The invention discloses a composite material capable of separating mixed xylene. The composite material is obtained by cocrystallization of two monomer molecules obtained by dissolving 1-acetyl-3-phenyl-5-(9-anthryl) pyrazoline (APPP) and 7,7,8,8-tetracyanoquinodimethane in an aromatics solvent, and drying after the solvent is removed so that a eutectic material is obtained. The composite material disclosed by the invention is used for selectively adsorbing paraxylene in a mixture after being applied to a mixed xylene solvent.

Description

technical field [0001] The invention relates to a porous composite material and a preparation method thereof. The material can selectively absorb p-xylene. Background technique [0002] Xylene includes three isomers of p-xylene, o-xylene and m-xylene. They are all important organic chemical raw materials and are widely used in medicine, pesticides, engineering plastics, dyes, catalysts, etc., especially for Xylene can be used to prepare terephthalic acid, which is the basis of the polyester (PET) industry. The boiling points of xylene isomers are relatively close, and traditional industries generally adopt separation methods with high energy consumption and high cost such as rectification. In recent years, a variety of adsorption materials capable of adsorbing xylene have also been reported. A KY-type molecular sieve, which can adsorb all xylene isomers, but has no selectivity [IndustrialandEngineeringChemistryProcessDesignandDevelopment, 1982,21(3):440]. Metal-organic MO...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/30C07C15/08C07C7/12
CPCB01J20/22B01J20/30B01J2220/4812C07C7/12C07C15/08
Inventor 王明亮陆娇魏想吴小娟
Owner SOUTHEAST UNIV
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