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Preparation method of porous composite material capable of selectively absorbing aromatic hydrocarbon

A technology for porous composite materials and aromatic hydrocarbons, applied in the field of porous composite materials, can solve the problems of difficult industrial production, high energy consumption of distillation methods, low aromatic hydrocarbon selectivity, etc., and achieves the effects of good adsorption effect and low preparation cost.

Inactive Publication Date: 2014-07-30
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, rectification and adsorption methods are adopted. The rectification method consumes a lot of energy and is not suitable for the separation of azeotropic mixtures.
Adsorption methods include molecular sieves, synthetic metal-organic porous materials MOF [Document 1: Chem. 2013,135,11684-11687], molecular sieve adsorbents have low selectivity for aromatics, and MOF materials can selectively adsorb aromatics, but the preparation of MOF materials is complicated and costly, and it is difficult to industrialize
HOF porous materials are difficult to apply to industrial production due to the easy destruction of hydrogen bonds, poor stability and low adsorption efficiency.

Method used

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  • Preparation method of porous composite material capable of selectively absorbing aromatic hydrocarbon
  • Preparation method of porous composite material capable of selectively absorbing aromatic hydrocarbon
  • Preparation method of porous composite material capable of selectively absorbing aromatic hydrocarbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 6

[0028] Example 6 and a comparative example illustrate the adsorption effect of the porous composite material.

Embodiment 1

[0030] 78.80g of 1-acetyl-3-(4-methoxyphenyl)-5-(9-anthracenyl)pyrazoline (AMPE) and 40.8g of 7,7,8,8-tetracyano-p-benzoquinone Dimethane (TCNQ) joins in 200ml dichloromethane and methanol mixed solvent and dissolves, and the volume ratio of dichloromethane and methanol in this mixed solvent is 1:1, after leaving standstill at room temperature for 24 hours, desolvating by distillation under reduced pressure, Dry to obtain a porous composite material.

Embodiment 2

[0032] 78.80g of 1-acetyl-3-(4-methoxyphenyl)-5-(9-anthracenyl)pyrazoline (AMPE) and 40.8g of 7,7,8,8-tetracyano-p-benzoquinone Dimethane (TCNQ) was added into 200 ml of ethyl acetate solvent to dissolve, and after standing at room temperature for 24 hours, the solvent was removed by distillation under reduced pressure, and the porous composite material was obtained by drying.

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Abstract

The invention discloses a preparation method of a porous composite material capable of selectively absorbing aromatic hydrocarbon. The composite material is obtained from two monomer molecules by cocrystallization. Particularly, the preparation method comprises the steps of: dissolving 1-acetyl-3-(4-methoxy phenyl)-5-(9-anthryl) pyrazoline (AMPE) and 7, 7, 8, 8-TCNQ in a non-aromatic solvent, then removing the solvent, and finally drying to obtain the composite material. The composite material provided by the invention is used for only selectively absorbing aromatic hydrocarbon from a mixture of aromatic hydrocarbon and non-aromatic hydrocarbon solvents.

Description

technical field [0001] The present invention relates to a porous composite material capable of selectively absorbing aromatic hydrocarbon solvents. Background technique [0002] Aromatic solvents are an important class of organic solvents, which are widely used in medicine, pesticides, dyes, polymer materials, etc. In the organic synthesis industry, aromatic solvents are often mixed with non-aromatic solvents, and the recovery of such mixed solvents often requires a separation process. Generally adopt rectification method and adsorption method, rectification method consumes a lot of energy and is not suitable for azeotropic mixture separation. Adsorption methods include molecular sieves, synthetic metal-organic porous materials MOF [Document 1: Chem. 2013,135,11684-11687], molecular sieve adsorbents have low selectivity for aromatics, and MOF materials can selectively adsorb aromatics, but MOF materials are complicated to prepare and costly, making it difficult to industri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30B01D15/08
Inventor 王明亮吴小娟杜曼陆娇
Owner SOUTHEAST UNIV
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