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A kind of carbon material and its synthesis method

A synthesis method and technology of carbon materials, applied in the preparation/purification of carbon, etc., can solve the problems of uneven material pore distribution, long time-consuming template assembly, difficult industrial production, etc., and achieve uniform pore size distribution, low production cost, and repeatability high effect

Active Publication Date: 2020-09-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Combining the above analysis, it can be seen that the existing preparation methods of macroporous carbon materials still have problems such as long template assembly time, high preparation cost, difficulty in industrial production, uneven pore distribution of the material, and poor physical and chemical properties.

Method used

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  • A kind of carbon material and its synthesis method
  • A kind of carbon material and its synthesis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Dissolve 0.35 g of sodium hydroxide in 42 mL of 25 wt% TEAOH and 10 mL of distilled water, and stir for 30 min. Then add 0.7 g of sodium aluminate and stir for 30 min. Add 12 g of white carbon black slowly and stir for 30 min. Then put it into a closed reactor and crystallize in an oven at 140°C for 33 h. Then the obtained product was washed with distilled water until neutral, and then dried at 120° C. for 12 hours to obtain a Beta molecular sieve.

[0044] (2) Put the Beta molecular sieve obtained in step (1) into 50 mL of 50wt% propylene glycol solution and allow it to settle naturally. When the molecular sieve has just settled to the bottom, take out 1 / 3 of the solution in the middle of the entire solution and filter it. Dry at 120°C for 10h.

[0045] (3) Mix the Beta molecular sieve obtained in step (2) with 7mL of 10wt% sodium benzoate solution, sonicate for 20min, the frequency of the ultrasonic wave is 0.01MHz, and the power is 20W / L according to the volum...

Embodiment 2

[0051] (1) Dissolve 0.13 g of sodium hydroxide in 31 mL of 25 wt% TEAOH and 10 mL of distilled water, and stir for 30 min. Then add 0.7 g of sodium aluminate and stir for 30 min. Add 12 g of white carbon black slowly and stir for 30 min. Then put it into a closed reactor and crystallize in an oven at 160°C for 20 h. Then the obtained product was washed with distilled water until neutral, and then dried at 120° C. for 12 hours to obtain a Beta molecular sieve.

[0052] (2) Put the Beta molecular sieve obtained in step (1) into 50 mL of 70wt% propylene glycol solution and allow it to settle naturally. When the molecular sieve has just settled to the bottom, take out 1 / 5 of the solution in the middle of the entire solution and filter it. Dry at 120°C for 10h.

[0053] (3) Mix the Beta molecular sieve obtained in step (2) with 5mL of 18wt% sodium benzoate solution, and ultrasonically treat it for 20min. Dry at ℃ for 12 hours.

[0054] (4) Add 1.78g of Beta molecular sieve obt...

Embodiment 3

[0059] (1) Dissolve 1.3 g of sodium hydroxide in 35 mL of 25 wt% TEAOH and 15 mL of distilled water, and stir for 30 min. Then add 1 g of sodium aluminate and stir for 30 min. Then slowly add 10g of white carbon black and stir for 30 min. Then put it into a closed reactor and crystallize in an oven at 105°C for 50 h. Then the obtained product was washed with distilled water until neutral, and then dried at 120° C. for 12 hours to obtain a Beta molecular sieve.

[0060] (2) Put the Beta molecular sieve obtained in step (1) into 85mL of 10wt% propylene glycol solution, and let it settle naturally. When the molecular sieve has just settled to the bottom, take out 1 / 7 of the solution in the middle of the entire solution, filter, and keep at 120°C Dry for 10h.

[0061] (3) Mix the Beta molecular sieve obtained in step (2) with 5mL of 10wt% sodium benzoate solution, ultrasonicate for 20min, the frequency of the ultrasonic wave is 0.72MHz, and the power is 50W / L according to the v...

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Abstract

The present invention provides a carbon material and a synthesis method thereof, wherein the carbon material comprises amorphous carbon, and has two-level pore channels. The synthesis method comprises: screening a Beta molecular sieve; placing the Beta molecular sieve in a sodium benzoate solution, and treating; mixing the Beta molecular sieve, saccharide, a silica sol and water, and carrying outstirring ultrasonic treatment; carrying out drying treatment and high temperature treatment; and finally treating in an alkali solution to obtain the macroporous carbon material. According to the present invention, with the method, the expensive organic additives are not used, and the prepared macroporous carbon material has uniform pore size distribution.

Description

technical field [0001] The invention belongs to the field of synthesis of porous inorganic materials, in particular to a macroporous carbon material and a synthesis method thereof. Background technique [0002] According to the classification of the International Union of Pure and Applied Chemistry, porous materials can be divided into three categories: macroporous materials (direct>50nm), mesoporous materials (2nm≤direct≤50nm) and microporous materials (direct<2nm). Since microporous materials and mesoporous materials have been successfully applied in the fields of industrial catalysis and separation, they have always been a hot spot in research and application. In recent years, as macroporous materials have made up for the shortcomings of small-pore molecular sieves and mesoporous materials in the field of macromolecular catalysis and separation, and it is difficult to allow macromolecules to enter the interior of the channel, as well as the advantages of other physi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/05
Inventor 范峰凌凤香张会成王少军杨春雁
Owner CHINA PETROLEUM & CHEM CORP
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