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Preparation method for metallic oxide loaded activated carbon

A technology of activated carbon preparation and metal loading, applied in catalyst activation/preparation, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of decreased activity, easy shedding of catalysts, and decreased catalyst life, and achieves good bonding degree and is not easy to be combined. The effect of catalyst falling off and low cost of raw materials

Inactive Publication Date: 2017-12-01
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned methods all have a common problem, that is, the binding force between the catalyst and the carrier activated carbon only depends on the van der Waals force, and the catalyst is easy to fall off, resulting in a decrease in activity and a decrease in catalyst life.

Method used

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  • Preparation method for metallic oxide loaded activated carbon
  • Preparation method for metallic oxide loaded activated carbon
  • Preparation method for metallic oxide loaded activated carbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) The rice husk is crushed and screened, then carbonized at high temperature, and the mass fraction of the volatile matter of the carbonized product is determined to be 2%; the carbonized product is further crushed, and the particle size is preferably 20 to 100 microns; then the carbonized product is placed in dilute nitric acid, Boil and reflux, filter and wash until neutral; place acid-treated charcoal in potassium hydroxide solution, boil and reflux; filter and wash until neutral, and dry;

[0022] (2) Weigh sodium carboxymethyl cellulose and add deionized water to make an additive solution with an additive mass percentage of 1%; weigh cobalt chloride, add it to the additive solution, and dissolve it completely , the mass percentage of cobalt chloride is 10%;

[0023] (3) Weigh the charcoal and sodium hydroxide treated in step 1 according to the mass ratio of 1:2, and pulverize them together with a pulverizer; add the solution prepared in step (2) according to the ...

Embodiment 2

[0027] (1) After crushing and sieving the corncobs, and carbonizing at high temperature, the mass fraction of the volatile matter of the carbonized product is determined to be 3%; the carbonized product is further crushed, and the particle size is preferably 20-100 microns; then the carbonized product is placed in dilute hydrochloric acid, Boil and reflux, filter and wash until neutral; place acid-treated charcoal in potassium hydroxide solution, boil and reflux; filter and wash until neutral, and dry;

[0028] (2) Weigh sodium carboxymethyl cellulose and add deionized water to make an additive solution with an additive mass percentage of 2%; weigh cobalt chloride, add it to the additive solution, and dissolve it completely , the mass percentage of cobalt chloride is 10%;

[0029] (3) Weigh the charcoal and potassium hydroxide treated in step 1 according to the mass ratio of 1:2, and pulverize them together with a pulverizer; add the solution prepared in step (2) according to ...

Embodiment 3

[0033] (1) The rice husk is crushed and sieved, and carbonized at high temperature. The mass fraction of the volatile matter of the carbonized product is determined to be 1.4%; the carbonized product is further crushed, and the particle size is preferably 20-100 microns; then the carbonized product is placed in dilute sulfuric acid, Boil and reflux, filter and wash until neutral; place the acid-treated carbonized product in sodium hydroxide solution, boil and reflux; filter and wash until neutral, and dry;

[0034] (2) Weigh methyl cellulose, add deionized water to make an additive solution with an additive mass percentage of 0.8%; weigh manganese sulfate, and add it to the additive solution, dissolve it completely, manganese sulfate The mass percentage content is 8%;

[0035] (3) Weigh the carbide and potassium hydroxide treated in step 1 according to the mass ratio of 1:1.5, and pulverize them together with a pulverizer; add the solution prepared in step (2) according to the...

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Abstract

The invention relates to a preparation method for metallic oxide loaded activated carbon. The preparation technology is characterized by comprising the following preparation steps: step 1 of smashing and screening biomass and carbonizing the biomass by high temperature; further smashing the carbide, then putting the carbide into diluted mineral acid, boiling refluxing, and filtering washing to neutral; putting the carbide processed by the acid into an alkali metal hydroxide solution, and boiling refluxing; filtering washing to neutral and drying; step 2 of weighing an additive and adding deionized water to prepare an additive solution; adding metal salt into the additive solution to be completely dissolved; step 3 of taking the carbide and the alkali metallic oxide treated in the step 1 and jointly smashing by a smashing machine; adding the solution prepared in the step 2 and stirring to prepare a pretreated raw material; step 4 of putting the raw materials in the step 3 into an inert atmosphere to be roasted; step 5 of smashing the roasted product in the step 4, washing to neutral and completely drying to obtain the metallic oxide modified biomass loaded activated carbon material. The preparation technology has the advantages of simpleness and easiness in control, safety, low cost and easiness in scale production.

Description

technical field [0001] The invention relates to a preparation method of activated carbon loaded with metal oxides, belonging to the field of preparation of activated carbon composite materials. Background technique [0002] Activated carbon is a porous material with a microcrystalline structure. The microcrystals are irregularly arranged and piled up to produce a rich pore structure, large specific surface area and large pore volume, which determines that activated carbon has good adsorption and can adsorb Metal ions, harmful gases, organic pollutants, pigments, etc. in waste water and waste gas. Industrially, activated carbon is used for decolorization and deodorization of oil, beverage, food and drinking water, gas separation, solvent recovery and air conditioning, and is used as a catalyst carrier and an adsorbent for gas masks. Activated carbon, compared with other adsorption materials, has the advantages of low manufacturing cost, large specific surface area and good a...

Claims

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Application Information

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IPC IPC(8): B01J23/34B01J23/745B01J23/75B01J23/755B01J21/18B01J32/00B01J37/08
CPCB01J23/34B01J21/18B01J23/745B01J23/75B01J23/755B01J37/084B01J37/088
Inventor 韩金磊荣常如陈书礼韩玉涛米新艳张克金魏晓川
Owner CHINA FIRST AUTOMOBILE
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