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Spherical activated carbon loaded with metal oxides, its preparation method and use

A spherical activated carbon and oxide technology, applied in the field of activated carbon materials, can solve the problems of limited application range, few derivative products, high cost, etc.

Active Publication Date: 2020-11-03
SHENZHEN GLOBAL GREENLAND NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to single performance, few derivative products, and complicated preparation process, its application range is limited, and its cost remains high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] 1.1 Preparation of spherical polymers loaded with metal ions:

[0068] Add 18 liters of water into a 50-liter polymerization kettle, heat it to 45°C, add 10g of magnesium carbonate, 20g of gelatin and 0.15g of methylene blue under stirring, and add 3kg of methylstyrene and 1kg of dipentamyl olefin and 20g of benzoyl peroxide mixed into the oil phase, then add 1.0kg of paraffin, close the polymerization kettle, feed clean compressed air into the polymerization kettle, and keep the gas phase pressure in the kettle at 0.02MPa. Then, turn on the stirring, adjust the liquid beads in the kettle to an appropriate particle size, raise the temperature to 80°C, keep the temperature for 12 hours, then raise the temperature to 100°C, keep the temperature for 20 hours, filter, wash, dry and sieve to obtain a particle size of 0.5mm~ 0.8mm spherical polymer 2.35kg.

[0069] The resulting spherical polymer was dried at 90°C for 2 hours, and then filled into a 20-liter round-bottomed f...

Embodiment 2

[0078] 2.1 Preparation of spherical polymers loaded with metal ions:

[0079] Add 18 liters of water into a 50-liter polymerization kettle, heat it to 45°C, add 10g of magnesium carbonate, 20g of gelatin and 0.15g of methylene blue under stirring, and add 3kg of methylstyrene and 1kg of dipentamyl olefin and 20g of benzoyl peroxide mixed into the oil phase, then add 1.0kg of paraffin, close the polymerization kettle, feed clean compressed air into the polymerization kettle, and keep the gas phase pressure in the kettle at 0.02MPa. Then, turn on the stirring, adjust the liquid beads in the kettle to an appropriate particle size, raise the temperature to 80°C, keep the temperature for 12 hours, then raise the temperature to 100°C, keep the temperature for 20 hours, filter, wash, dry and sieve to obtain a particle size of 0.5mm~ 0.8mm spherical polymer 2.35kg.

[0080] 4kg of the prepared spherical polymer was used, dried at 100°C for 1 hour, and then filled into a round bottom ...

Embodiment 3

[0089]3.1 Drying of spherical polymers

[0090] Use 4 kg of the unloaded spherical polymer prepared in the first step of step 1.1 of Example 1, dry at 100° C. for 1 hour, and then fill it into a round-bottomed flask to obtain spherical polymer SP3.

[0091] 3.2 Carbonization

[0092] Mix the spherical polymer SP3 obtained in step 3.1 with a mass ratio of 1:1.5 and concentrated sulfuric acid, stir at 100°C for 4 hours, cool down, filter, and add the resulting solid to 200 liters of saturated MoCl 2 In the solution, stir vigorously at 120°C for 10 hours, then filter, put the obtained solid into a rotary tube furnace, and sulfonate it at a temperature of 155-160°C for 5 hours;

[0093] Continue to heat up at a heating rate of 3°C / min, and carry out carbonization treatment in a mixed atmosphere with an oxygen volume percentage of 3%:

[0094] Heat to 300°C and stay for 200 minutes;

[0095] Heating to 500°C, staying for 240 minutes, cooling down to obtain a carbonized product. ...

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Abstract

The invention relates to spherical activated carbon loaded with a metal oxide as well as a preparation method and use thereof. The surface of the spherical activated carbon is loaded with the metal oxide, so that the spherical activated carbon has good adsorptive property and has excellent preferential adsorption properties to gases such as H2S, and the application range is very wide. The preparation method is simple and convenient, the polymer can be treated in situ in the carbonization process and does not need to be pretreated by virtue of sulfuric acid before the carbonization step, so that the efficiency is remarkably improved.

Description

technical field [0001] The invention relates to spherical activated carbon loaded with metal oxides, its preparation method and application, and belongs to the technical field of activated carbon materials. Background technique [0002] Activated carbon is a hydrophobic adsorbent prepared by high-temperature carbonization and activation from carbon-containing substances as raw materials. Activated carbon contains a large number of pores and can have a large surface area, making it one of the most widely used adsorbents. At present, activated carbon is not only used to remove color and odor, but also to remove some organic pollutants and some inorganic substances in water, including some toxic heavy metals. [0003] Activated carbon is generally prepared by carbonization of suitable carbonaceous feedstocks followed by activation. The study found that the difference in raw materials may affect the properties of activated carbon products, such as their composition, porosity, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/318C01B32/336B01J20/20B01D53/02
CPCB01D53/02B01D2257/304B01J20/20C01B32/318C01B32/336
Inventor 常明珠
Owner SHENZHEN GLOBAL GREENLAND NEW MATERIALS CO LTD
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