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Magnetic active carbon and preparation method thereof

A magnetic activated carbon and activated carbon technology, applied in the field of activated carbon, can solve the problems of difficult activated carbon recovery, etc., and achieve the effect of good adsorption performance, high specific surface area, and wide range of materials

Inactive Publication Date: 2014-09-10
WUXI CITY CHONGAN DISTRICT TECH ENTREPRENEURSHIP SERVICE CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, to deal with sudden pollution incidents of water sources, dosing activated carbon is a cost-effective solution. However, it is difficult to effectively recover activated carbon after use.

Method used

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  • Magnetic active carbon and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A magnetic activated carbon comprises the following raw materials in parts by weight: 20 parts of cow dung, 10 parts of sludge, 60 parts of crop straw, 20 parts of coal powder, and 20 parts of iron powder core.

[0021] A preparation method of magnetic activated carbon, comprising the following steps:

[0022] (1) Clean, filter and dry the cow dung and sludge first, weigh and mix the raw materials according to the parts by weight, soak the raw materials in KOH solution for 1 day, and then rinse them with distilled water until neutral;

[0023] (2) Put the raw materials treated in step (1) in a jade crucible, and then put the jade crucible into a microwave oven for two-step microwave treatment. The power of the first microwave treatment is 600W, and the activation time is 12 minutes. The power of microwave treatment is 800W, and the activation treatment is 5 minutes. After the activation is completed, cool to room temperature and take it out;

[0024] (3) Rinse the remo...

Embodiment 2

[0027] A magnetic activated carbon comprises the following raw materials in parts by weight: 20 parts of cow dung, 10 parts of sludge, 60 parts of crop straw, 20 parts of coal powder, and 20 parts of iron powder core.

[0028] A preparation method of magnetic activated carbon, comprising the following steps:

[0029] (1) Clean, filter and dry the cow dung and sludge first, weigh and mix the raw materials according to the parts by weight, soak the raw materials in KOH solution for 2 days, and then rinse them with distilled water until neutral;

[0030] (2) Put the raw materials treated in step (1) in a jade crucible, and then put the jade crucible into a microwave oven for two-step microwave treatment. The power of the first microwave treatment is 700W, and the activation time is 13 minutes. The power of microwave treatment is 850W, and the activation treatment is 6 minutes. After the activation is completed, cool to room temperature and take it out;

[0031] (3) Rinse the rem...

Embodiment 3

[0034] A magnetic activated carbon comprises the following raw materials in parts by weight: 20 parts of cow dung, 10 parts of sludge, 60 parts of crop straw, 20 parts of coal powder, and 20 parts of iron powder core.

[0035] A preparation method of magnetic activated carbon, comprising the following steps:

[0036] (1) Clean, filter and dry the cow dung and sludge first, weigh and mix the raw materials according to the parts by weight, soak the raw materials in KOH solution for 3 days, and then rinse them with distilled water until neutral;

[0037] (2) Put the raw materials processed in step (1) in a jade crucible, and then put the jade crucible into a microwave oven for two-step microwave treatment. The power of the first microwave treatment is 800W, and the activation time is 15 minutes. The power of microwave treatment is 900W, and the activation treatment is 10 minutes. After the activation is completed, cool to room temperature and take it out;

[0038] (3) Rinse the ...

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Abstract

The invention discloses magnetic active carbon and a preparation method thereof. The magnetic active carbon comprises the following raw materials in parts by weight: 20-30 parts of cow dung, 10-20 parts of sludge, 60-80 parts of crop straw, 20-40 parts of coal powder and 20-30 parts of magnetic materials. The preparation method comprises the following steps: cleaning, filtering and drying the cow dung and the sludge; weighing and mixing the raw materials in parts by weight, soaking the raw materials by using a KOH solution, and then washing by using distilled water until the raw materials are neutral; performing two-step microwave treatment on the treated raw materials, cooling to room temperature after activation is finished, and then taking out an activated product; washing the activated product which is taken out by using the distilled water, adding a hydrochloric acid solution, heating, and re-washing the treated activated product by using the distilled water until the treated activated product is neutral to obtain a semi-finished active carbon; and drying and grinding to obtain the active carbon. The prepared magnetic active carbon is sufficient in magnetic strength and stable in magnetic performance, has the advantages of high specific surface area, good adsorption performance and the like, and is low in cost and suitable for industrial production; the raw materials of the magnetic active carbon can be widely obtained.

Description

technical field [0001] The invention belongs to activated carbon, and in particular relates to a magnetic activated carbon and a preparation method thereof. Background technique [0002] Activated carbon is a high-quality adsorbent with strong chemical stability, mechanical strength, acid resistance, alkali resistance, heat resistance, insoluble in water and organic solvents, and easy regeneration after use. It is widely used in food processing, medicine, metallurgy, etc. , chemical industry, environmental protection and other aspects have a wide range of uses. The raw materials for preparing activated carbon include wood, coke, petroleum coke, fruit shells, etc., and its production methods include water vapor or flue gas activation, high-temperature carbonization, and chemical carbonization activation. High-quality activated carbon on the market is mainly produced by the conventional method of heating potassium hydroxide for activation. The activation time is longer, the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30
Inventor 顾肖红丁演潘琳
Owner WUXI CITY CHONGAN DISTRICT TECH ENTREPRENEURSHIP SERVICE CENT
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