Lignin modified activated carbon adsorbent, and preparation method thereof

A technology of activated carbon adsorption and lignin, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of limited adsorption capacity of adsorbents, achieve good adsorption performance, increase cohesive force, and increase pores

Inactive Publication Date: 2014-02-12
BENGBU HUAFANG FILTER
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, most of these adsorbents have limited adsorption capacity, and different ...

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Embodiment Construction

[0010] A lignin-modified activated carbon adsorbent, made from the following raw materials in parts by weight (kg): rice husk 23, bamboo charcoal 23, potassium chloride 8, cerium oxide 2, ammonium persulfate 0.8, pumice powder 8, diatomite powder 9, activated carbon powder 110, attapulgite 12, magnesium nitride 4, lignin 13, modified diatomite 4, appropriate amount of water;

[0011] The modified diatomite is made of the following raw materials in parts by weight (kg): diatomite 156, bamboo charcoal 34, nano-carbon 1.5, barley oil 2.5, ascorbic acid 1.5, citric acid 2.5, nano-titanium dioxide 1.5, Panax notoginseng powder 2.5 The preparation method is to put diatomite into a calciner and calcinate at 550°C for 3.5 hours, take it out, soak it in 14% hydrochloric acid solution for 4.5 hours, filter it out, wash it repeatedly with clear water, dry it, add it to water, and at the same time , add nano-carbon, ascorbic acid, bamboo charcoal, grind to obtain slurry, spray dry, mix ot...

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Abstract

The invention discloses a lignin modified activated carbon adsorbent which is prepared from the following raw materials in parts by weight: 20-25 parts of rice husk, 20-25 parts of bamboo charcoal, 6-9 parts of potassium chloride, 2-3 parts of cerium oxide, 0.5-1 part of ammonium persulfate, 6-9 parts of powdered pumice, 8-10 parts of diatomite powder, 100-120 parts of activated carbon powder, 10-13 parts of attapulgite, 3-5 parts of magnesium nitride, 10-14 parts of lignin, 4-5 parts of modified diatomite and a suitable amount of water. By virtue of high-temperature carbonization of the rice husk, a thin pore structure can be easily formed, and activated carbon with more-developed pores and better adsorptive property can be prepared; by use of powdered pumice, the pores of the activated carbon can be increased; by use of the diatomite powder and attapulgite, antibacterial property, deodorization, moisture absorption, mould prevention as well as catalytic decomposition of organics can be realized; by use of the lignin, the cohesive force is improved, so the lignin modified activated carbon adsorbent is less in possibility of being disintegrated, and is safe and environment-friendly. The lignin modified activated carbon adsorbent disclosed by the invention is suitable for dust desorption.

Description

technical field [0001] The invention relates to the field of modified functional materials, in particular to a lignin-modified activated carbon adsorbent and a preparation method thereof. Background technique [0002] At present, adsorbents are often used to remove toxins, mainly silica gel, activated alumina, activated carbon, molecular sieves, etc., and there are also adsorption materials developed for the selective adsorption of certain components. 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. At the same time, look for new raw materials to enhance the adsorption effect and save costs. Contents of the invention [0003] The object of the present invention is to provide a lignin modified activated carbon adsorbent and a preparation method thereof. [0004] Technical scheme of the present invention is as follows: [0005] A lignin modified activa...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/30
Inventor 陈登宇
Owner BENGBU HUAFANG FILTER
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