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A kind of supported catalytic filler and its preparation method and application

A catalytic filler and supported technology, applied in the field of supported catalytic filler and its preparation, can solve the problems of low catalytic efficiency and the like

Active Publication Date: 2021-07-06
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-efficiency loaded catalytic packing and its preparation method and application in view of the problems and deficiencies such as low catalytic efficiency of existing bundled and sandwich-type catalytic packings.

Method used

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  • A kind of supported catalytic filler and its preparation method and application
  • A kind of supported catalytic filler and its preparation method and application

Examples

Experimental program
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Effect test

preparation example Construction

[0023] The preparation method of described supported catalytic filler comprises the following steps:

[0024] 1) Dissolve the epoxy resin in the pore-forming agent and add a cross-linking agent to form a viscous liquid. Take a certain amount of 3mm×3mm θ ring filler and place it in the above solution, make it fully wet the surface of the filler carrier, take it out, and wait for the filler to After there is no obvious liquid retention on the surface of the carrier, place it in a drum for curing at a constant temperature of 60-130°C for 5-24 hours to obtain a filler carrier containing a cured adhesive layer; after curing, the filler carrier is extracted with ethanol or washed with water to remove the pores in the adhesive layer agent to obtain a porous adhesive layer filler carrier;

[0025] 2) Put the above-mentioned porous layer filler carrier in a 1-5 wt% coupling agent solution for 12-24 hours, and then vacuum-dry it for 24 hours. Put the porous filler carrier in the PSS-N...

Embodiment 1

[0032] Dissolve 1 part of epoxy resin E44 in 0.3 parts of polyethylene glycol (molecular weight 400) and add 0.25 parts of tetraethylenepentamine to form an adhesive. Put a certain amount of θ ring filler in the adhesive liquid, dip it twice to fully wet the surface of the filler carrier, and then take it out. After there is no obvious liquid retention on the surface of the filler carrier, put it in a drum and cure it at a constant temperature of 60°C for 10 hours to obtain a cured A filler carrier for the adhesive layer; ethanol extraction is performed on the cured filler carrier to remove the pore-forming agent in the adhesive layer to obtain a porous adhesive layer filler carrier.

[0033] Place the above-mentioned porous layer filler carrier in a 1wt% coupling agent solution for 24 hours, then dry it in the air, then place it in an aqueous solution of sodium polystyrene sulfonate for 12 hours, so that sodium polystyrene sulfonate is immersed in the micropores of the adhesiv...

Embodiment 2

[0035] Dissolve 1 part of epoxy resin E51 in 0.5 part of polyethylene glycol / N,N'-dimethylformamide mixed solution and add 0.5 part of 4,4'-diaminodicyclohexylmethane to form an adhesive. Put a certain amount of θ ring filler in the adhesive liquid, dip it twice to fully wet the surface of the filler carrier, and then take it out. After there is no obvious liquid retention on the surface of the filler carrier, put it in a drum and cure it at a constant temperature of 100°C for 5 hours to obtain a cured A filler carrier for the adhesive layer; ethanol extraction is performed on the cured filler carrier to remove the pore-forming agent in the adhesive layer to obtain a porous adhesive layer filler carrier.

[0036] Place the above-mentioned porous layer filler carrier in a 3wt% coupling agent solution for 24 hours and then dry it in the air, then place it in an aqueous solution of sodium polystyrene sulfonate for 12 hours, so that sodium polystyrene sulfonate is immersed in the m...

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Abstract

A supported catalytic filler and its preparation method and application relate to a supported catalytic filler. The supported catalytic filler is provided with a filler carrier, a porous adhesive layer and a catalytic active component, and the catalytic active component is filled in the pores of the porous adhesive layer or combined on the surface of the porous adhesive layer. Preparation method: dissolve the porous structure medium in the pore-forming agent, add a cross-linking agent to form an adhesive liquid, take the filler carrier and dip it in the adhesive liquid, take out and solidify the filler carrier containing the cured adhesive layer, remove the adhesive layer Mesopore-forming agent, vacuum-dried to obtain a filler carrier with a porous adhesive layer; placed in a coupling agent solution, and then placed in a PSS-Na aqueous solution, so that PSS-Na is immersed in the micropores of the adhesive layer and reacts with the resin combined, then placed in dilute sulfuric acid solution for acidification, washed with water to remove residual acid, and vacuum-dried to obtain the supported catalytic filler. The prepared supported catalytic filler can be applied to the reaction separation process.

Description

technical field [0001] The invention relates to a loaded catalytic filler, in particular to a loaded catalytic filler in reaction separation equipment, a preparation method and application thereof. Background technique [0002] Reactive distillation technology is a chemical process intensification technology that couples catalytic reaction and separation in the same equipment, which can shorten the process flow and save equipment investment to a large extent. Simultaneous reaction and separation in the process can overcome the limitation of chemical reaction balance, improve the conversion rate of reaction reactants and the selectivity of target products; if there are azeotropes in the reaction system, the reduction of reactants as the reaction progresses can overcome the separation of azeotropes Limit and improve the purity of products separated by rectification. However, the catalytic packing is one of the important internal components in the reaction separation equipment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D3/00B01J8/02B01D3/14
CPCB01D3/009B01D3/14B01J8/02
Inventor 沙勇周道伟张禹陈帅
Owner XIAMEN UNIV
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