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A kind of modified activated carbon adsorbent and preparation method thereof

A technology of activated carbon adsorption and coconut shell activated carbon, which is applied in the direction of chemical instruments and methods, and other chemical processes, can solve the problems of limited adsorption capacity of adsorbents, and achieve the effects of excellent adsorption, wide source of raw materials, and good strength

Active Publication Date: 2016-08-24
广东韩研活性炭科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of these adsorbents have limited adsorption capacity, and different adsorbents need to be studied according to different requirements to play the best role.

Method used

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  • A kind of modified activated carbon adsorbent and preparation method thereof
  • A kind of modified activated carbon adsorbent and preparation method thereof
  • A kind of modified activated carbon adsorbent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A modified activated carbon adsorbent, in parts by weight, its composition raw materials include: 400 parts of coconut shell activated carbon, 400 parts of coal-based activated carbon, 400 parts of wood activated carbon, 65 parts of bentonite, 38 parts of coal tar and 5 parts of methyl cellulose share. The modified activated carbon adsorbent is prepared according to the following steps:

[0022] Step 1, pulverizing bentonite and calcining in a calcination furnace at 600°C for 4 hours;

[0023] Step 2, take out the calcined bentonite, add coconut shell activated carbon, coal-based activated carbon, wood activated carbon, coal tar and water, adjust it into mud, heat it to 70°C and grind it for 3 hours to get a 200-300 mesh slurry, and dry it;

[0024] Step 3: Spray an aqueous solution of methyl cellulose to the particles obtained in step 2, heat the particles to wrap a layer of methyl cellulose film, and dry them.

Embodiment 2-7、 comparative example 1-9

[0026] The difference between Examples 2-6 and Comparative Examples 1-3 and Example 1 lies in the composition ratio of raw materials, see Table 1 for details.

[0027] Table 1 Raw material composition ratio of Examples 2-6 and Comparative Examples 1-3 (unit: parts by weight)

[0028]

[0029]

Embodiment 8

[0031] The difference between this example and Example 1 lies in: step 1, the bentonite is pulverized and calcined in a calcination furnace at 550° C. for 5 hours.

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Abstract

The invention provides a modified activated carbon adsorbent, the raw materials of which include coconut shell activated carbon, coal activated carbon, wood activated carbon, bentonite, coal tar and methyl cellulose. Crush bentonite and calcinate at 550-650°C for 3-5 hours; add coconut shell activated carbon, coal-based activated carbon, wood activated carbon, coal tar and water, make it into mud, grind and dry; spray methyl cellulose on the obtained particles aqueous solution, and heated, so that the particles wrapped a layer of methyl cellulose film, drying. The present invention uses coconut shell activated carbon, coal-based activated carbon and wood activated carbon as the basic activated carbon, and uses bentonite, coal tar, methyl cellulose and other substances to modify the basic activated carbon to obtain a modified activated carbon adsorbent, which has good strength and excellent adsorption Its strength, iodine adsorption value and methylene blue adsorption value are much higher than the national standard value of the first-class activated carbon for wood water purification, and the source of raw materials is wide and the cost is low.

Description

technical field [0001] The invention relates to the field of modified functional materials, in particular to a modified activated carbon adsorbent and a preparation method thereof. Background technique [0002] With the development of science and technology and the gradual construction of modern industries, various chemicals have been developed and utilized, which has brought convenience to people's lives. The problem. [0003] At present, the pollutants in the air are mainly the gas produced by industrial fuel combustion, automobile exhaust, and toxic and harmful gases produced in production. Water pollution is mainly due to the fact that the sewage discharged from industrial production contains a large amount of toxic substances, and the sewage produced in people's daily life produces many harmful substances. There are many times in people’s lives that people need to remove toxins. For example, there are many bacteria and toxins on the filter screen of air conditioners, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/30
Inventor 韩初榆韩琍君徐海健
Owner 广东韩研活性炭科技股份有限公司
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