Unlock instant, AI-driven research and patent intelligence for your innovation.

Metalloporphyrin-graphene oxide modified microchannel reactor and its preparation method and application

A technology of microchannel reactor and graphene modification, applied in chemical instruments and methods, preparation of organic compounds, preparation of carboxylate, etc., can solve the problem of difficult to achieve large-scale industrial application, difficult to recycle, price of metal porphyrin Expensive and other issues, to achieve the effect of less three wastes, avoid recycling and waste, and high safety

Active Publication Date: 2021-01-29
ZHEJIANG UNIV OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, metalloporphyrins are difficult to achieve large-scale industrial applications due to their high price and difficulty in recycling.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Preparation of Octaethylporphyrin Palladium-Graphene Oxide Modified Microchannel Reactor:

[0025] In the reaction flask, add graphene oxide (5.0g) and N,N-dimethylformamide (50mL), sonicate for 10min, then add palladium octaethylporphyrin (0.25g) and tin dioxide (5.0g) , stir and heat up to 60°C, ultrasonically react at 800W for 1 hour, filter under reduced pressure, rinse the filter cake with N,N-dimethylformamide, and dry at 70°C to obtain octaethylporphyrin palladium-graphene oxide catalyst;

[0026] In the reaction bottle, add silane crosslinking agent methyltrimethoxysilane (5.0g) and 95% ethanol (25mL, that is, 95% ethanol aqueous solution in volume percentage), add the ethylene oxide of polypropylene glycol with molecular weight 1000~2000 Adduct (0.5g, Aladdin Reagent (Shanghai) Co., Ltd.) and octaethylporphyrin palladium-graphene oxide catalyst (3.0g), ultrasonic 10min, mix well, the microchannel reactor of silicon carbide material (production Manufacturer: S...

Embodiment 2

[0031] Preparation of tetraphenylporphyrin zinc-graphene oxide modified microchannel reactor:

[0032] In the reaction flask, add graphene oxide (5.0g) and N,N-dimethylformamide (75mL), sonicate for 10min, then add zinc tetraphenylporphyrin (0.4g) and tin dioxide (6.0g) , stir and heat up to 40°C, ultrasonically react at 800W for 2 hours, filter under reduced pressure, rinse the filter cake with N,N-dimethylformamide, and dry at 70°C to obtain tetraphenylporphyrin zinc-graphene oxide catalyst;

[0033] In the reaction bottle, add silane crosslinking agent methyltrimethoxysilane (5.0g) and 95% ethanol (40mL, that is, 95% ethanol aqueous solution in volume percentage), add the ethylene oxide of polypropylene glycol with molecular weight of 1000~2000 The adduct (1.0g, Aladdin Reagent (Shanghai) Co., Ltd.) and tetraphenylporphyrin zinc-graphene oxide catalyst (2.0g) were ultrasonically mixed for 10min, and the silicon carbide microchannel reactor (produced Manufacturer: Shandong...

Embodiment 3

[0038] Preparation of tetraphenylporphyrin magnesium-graphene oxide modified microchannel reactor:

[0039] In the reaction flask, add graphene oxide (5.0g) and N,N-dimethylformamide (100mL), sonicate for 10min, then add magnesium tetraphenylporphyrin (0.5g) and tin dioxide (5.5g) , stir and heat up to 50°C, ultrasonically react at 800W for 1.5 hours, filter under reduced pressure, rinse the filter cake with N,N-dimethylformamide, and dry at 70°C to obtain tetraphenylporphyrin magnesium-graphene oxide catalyst;

[0040] In the reaction bottle, add silane crosslinking agent methyltriethoxysilane (5.0g) and 95% ethanol (50mL, that is, 95% ethanol aqueous solution in volume percentage), add the ethylene oxide of polypropylene glycol with molecular weight of 1000~2000 Alkane adduct (0.75g, Aladdin Reagent (Shanghai) Co., Ltd.) and tetraphenylporphyrin magnesium-graphene oxide catalyst (4.0g), ultrasonic 10min, mix homogeneously, the microchannel reactor ( Manufacturer: Shandong ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a microchannel reactor modified by metalloporphyrin-graphene oxide, a preparation method thereof and an application in toluene oxidation reaction, the microchannel reactor modified by metalloporphyrin-graphene oxide It is a microchannel reactor made of silicon carbide, and metalloporphyrin-graphene oxide is grafted on the surface of the microchannel reactor through a silane crosslinking agent. The application of the modified microchannel reactor of the present invention can be directly applied to the oxidation reaction of toluene, which avoids the recovery and waste of the catalyst. At the same time, the reactor can realize continuous operation, automatic control, simple operation, and mild reaction conditions , simple post-processing, less waste, high safety, good economic benefits, is a green and environmentally friendly process suitable for industrial production.

Description

technical field [0001] The invention relates to the field of microchannel reactors, in particular to a microchannel reactor modified by metalloporphyrin-graphene oxide, a preparation method thereof, and an application in toluene oxidation reaction. Background technique [0002] As a catalyst, metalloporphyrin can catalyze the conversion rate of toluene up to 8.7% without any solvent and cocatalyst (Zhejiang Chemical Industry, 2014, 45(3): 29). The study found that the homogeneous system catalyzed by metalloporphyrin hardly corrodes equipment and has little environmental pollution. However, metalloporphyrins are difficult to achieve large-scale industrial applications due to their high price and difficulty in recycling. Loading the metalloporphyrin on the carrier can improve its catalytic activity. At the same time, the larger the specific surface area of ​​the carrier is, the more it helps to increase the exposure of the metalloporphyrin center to the oxidant and fully cont...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/00C07C63/06C07C51/265
Inventor 贾建洪冯东黄佳豪沙洋澄李益珠
Owner ZHEJIANG UNIV OF TECH