Nano-silver honeycomb-type purification activated carbon and preparation method thereof

A technology of activated carbon and nano-silver, applied in the direction of chemical instruments and methods, inorganic chemistry, alkali metal compounds, etc., can solve the problems of reduced adsorption effect, lack of activated carbon, and inability to intimate contact, etc., achieves the improvement of adsorption and desorption speed, and the method is simple and feasible , good inhibitory and killing effects

Active Publication Date: 2013-12-11
台州绿之源环保股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Activated carbon is used in the industrial field for decolorization, refining, and purification of liquid phase adsorption. In terms of gas phase adsorption, powdered and granular activated carbon cannot be in close contact with toxic and harmful substances in the air, thus greatly reducing the adsorption effect.
[0004] On the other hand, the current activated carbon application technology lacks the ability to ensure that activated carbon has a good function of absorbing dirt and has a good killing effect on microorganisms that make people sick, especially the lack of activated carbon used in hospitals and other environments.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: The weight ratio of the raw materials used is: 35 parts of chemical activated carbon, 27 parts of coal-based granular activated carbon, and 40 parts of coconut shell activated carbon; three selected activated carbons with different ratios are placed in a ball mill and ground into The mesh number is 500 mesh activated carbon powder. Then take 102 parts of ground activated carbon powder, 5 parts of 99% pure nano silver, 1.5 parts of methyl cellulose, and 1.5 parts of talc. The above-mentioned raw materials are sequentially added to the mixer, stirred and mixed uniformly to make a mixture. Then place the mixture in a kneader (or mixer), add moderate distilled water, knead for 30 minutes, and knead it into a paste in the kneader. Then the mud paste is placed in a vacuum mud training machine, and then it becomes uniform plasticized mud paste in the vacuum mud training machine. Then the plasticized mud paste is placed in extrusion molding, and extruded into a hone...

Embodiment 2

[0028] Example 2: The weight ratio of the raw materials used is: 32 parts of chemical activated carbon, 30 parts of coal-based granular activated carbon, and 38 parts of coconut shell activated carbon. Three different ratios of activated carbon are placed in a ball mill and ground into a ball mill. The mesh number is 500 mesh activated carbon powder. Then take the ground activated carbon powder, 6 parts of 99% pure nano silver, 2 parts of methyl cellulose, and 2 parts of talc. The above-mentioned raw materials are sequentially added to the mixing and mixing, and the mixture is uniformly mixed to form a mixture. The remaining steps are the same as in Example 1, wherein the profile with a moisture content of less than 10% is placed in a furnace for sintering at a sintering temperature of 900° C. and a time of 5 hours.

[0029] The performance of the prepared nano-silver honeycomb purification activated carbon product: iodine adsorption value 1100~1200mg / g, benzene adsorption value...

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Abstract

The invention relates to nano-silver honeycomb-type purification activated carbon and a preparation method thereof. The nano-silver honeycomb-type purification activated carbon uses the following raw materials in part by weight: 32 to 38 parts of chemical activated carbon, 25 to 30 parts of granular activated carbon from coal, 35 to 42 parts of cocoanut active charcoal, 4 to 6 parts of nano-silver with purity of 99 percent, 1 to 2 parts of methylcellulose and 1 to 2 parts of talcum powder. The method comprises the following steps: carrying out ball milling, mixing the raw materials with uniformly stirring to obtain a product material; carrying out vacuum pugging, extrusion forming, air-drying and sintering to obtain the nano-silver honeycomb-type purification activated carbon. According to the invention, the activated carbon can be guaranteed to have an excellent dirt adsorption function, also can have an excellent effect of killing and inhibiting microorganisms which are pathogenic for people, is suitable for the environment such as a hospital and the like, and also has the advantages of firmness for sizing, durability, simple and practicable method, low pollution control cost, low carbon, energy saving and good treatment effect.

Description

Technical field [0001] The invention belongs to a nano silver honeycomb type purification activated carbon and a preparation method thereof. Background technique [0002] Activated carbon is widely used in all aspects of industrial and agricultural production, such as alkali-free deodorization (refined desulfurization) in the petrochemical industry, ethylene desalination (refined packing), catalyst carrier (palladium, platinum, rhodium, etc.), water purification and sewage treatment; Water quality treatment and protection of power plants in the industry; chemical catalysts and carriers, gas purification, solvent recovery, and decolorization and refining of oils in the chemical industry; refining and decolorization of beverages, alcohol, MSG mother liquor and food in the food industry; gold in the gold industry Extraction, tail liquid recovery; sewage treatment, waste gas and harmful gas treatment, gas purification in environmental protection industry; and related industries cigar...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/28B01J20/30
Inventor 刘大敏季小恩颜海军
Owner 台州绿之源环保股份有限公司
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