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Activated carbon fiber ball and preparation method thereof

A technology of activated carbon fibers and pellets, applied in chemical instruments and methods, carbon compounds, other chemical processes, etc., can solve the problems of limiting the application range of activated carbon fibers, high cost of preparing activated carbon fibers, and inconvenient filling, etc. Oxidation and corrosion resistance, the effect of improving activation efficiency and reducing activation cost

Inactive Publication Date: 2015-07-01
SICHUAN CHUANGYUE CARBON MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation cost of activated carbon fiber is too high, the mesoporosity is low, and the subsequent processing is difficult. Its form is single and filling is inconvenient, which highlights its various defects in practical application.
Especially in the application of water treatment and catalyst carrier, the mesoporosity, filter material or the strength of the carrier itself and slag seriously limit the application range of activated carbon fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of active carbon fiber pellet, is made from the raw material of following parts by weight:

[0022] Activated carbon fiber 90, thermosetting resin carbon 2.5, phenolic emulsion 0.1, epoxy resin emulsion 5.

[0023] Its preparation method comprises the following steps:

[0024] (1) Stirring into balls: After mixing 0.1mm chopped carbon fiber and phenolic emulsion, use a high-speed mixer to stir into fiber pellets with a diameter of 2mm;

[0025] (2) Spheronization and granulation: Add epoxy resin emulsion to the carbon fiber pellets prepared in step (1) according to the solid content, and use a disc granulator to perform secondary spheronization to make fiber / resin with a diameter of 1.8mm small ball;

[0026] (3) Curing: Take the above fiber / resin pellets and cure them at 100°C for 2 hours to obtain cured pellets;

[0027] (4) Activation: place the solidified pellets in a carbonization activation furnace for carbonization, and activate them with water vapor at...

Embodiment 2

[0029] A kind of active carbon fiber pellet, is made from the raw material of following parts by weight:

[0030] Activated carbon fiber 97.5, thermosetting resin carbon 10, mixed solution 2 of polyvinyl alcohol aqueous solution and epoxy emulsion, mixed emulsion 20 of epoxy resin and phenolic resin.

[0031] Its preparation method comprises the following steps:

[0032] (1) Stirring into balls: After mixing 5mm chopped carbon fibers with a mixture of polyvinyl alcohol aqueous solution and epoxy emulsion, use a high-speed mixer to stir into fiber pellets with a diameter of 4mm;

[0033] (2) Spheronizing: Add the carbon fiber pellets prepared in step (1) to the mixed emulsion of epoxy resin and phenolic resin according to the solid content, and use a roller granulator to carry out secondary spheronizing to make a diameter of 3mm fiber / resin pellets;

[0034] (3) Curing: Take the above-mentioned fiber / resin pellets and cure them at 300°C for 10 hours to obtain cured pellets; ...

Embodiment 3

[0037] A kind of active carbon fiber pellet, is made from the raw material of following parts by weight:

[0038] Activated carbon fiber 93, thermosetting resin carbon 6, the liquid binder is a mixture of phenolic emulsion, polyvinyl alcohol aqueous solution, epoxy emulsion, and polyacrylamide aqueous solution 1, and the thermosetting resin emulsion is a mixture of epoxy resin, phenolic resin, and furfural resin emulsion Liquid 10.

[0039] Its preparation method comprises the following steps:

[0040] (1) Stirring into balls: After mixing 2mm chopped carbon fibers and liquid binders such as phenolic emulsion, polyvinyl alcohol aqueous solution, epoxy emulsion, and polyacrylamide aqueous solution, stir at high speed with a high-speed mixer to form a diameter of 3mm. fiber pellets;

[0041] (2) Spheronization and granulation: The carbon fiber pellets prepared in step (1) are added with a thermosetting resin emulsion according to the solid content to form a mixture of epoxy re...

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Abstract

The invention discloses an activated carbon fiber ball and a preparation method thereof, and belongs to the field of activated carbon materials, and provides the activated carbon fiber ball mainly aiming at the problems that the activated carbon fiber is over-high in preparation cost, low in porosity, large in subsequent processing difficulty, single in form, inconvenient to fill and the like at present. According to the main technical scheme, the preparation method of the activated carbon fiber ball comprises the following steps: mixing short carbon fiber with a liquid-containing binder and then stirring at a high speed to form a fiber ball; adding a thermosetting resin emulsion or solution according to the solid content; secondarily rolling and cladding to prepare a fiber / resin ball; solidifying for 2-10 hours at 100-300 DEG C, so as to prepare a solidified ball; putting the solidified ball into a carbonization and activation furnace; and carbonizing and activating by water vapor, so as to prepare the activated carbon fiber ball. The activated carbon fiber ball is good in strength, good in particle sphericity, convenient to fill and exchange, good in permeability, light in weight, strong in adsorption capacity, high in sphere strength, and excellent in inoxidizability and corrosion resistance, and can be widely applied to water treatment, air purification, trace pollutant removal, a catalyst carrier and the like.

Description

technical field [0001] The invention belongs to the field of activated carbon materials, and in particular relates to an activated carbon fiber pellet and a preparation method thereof. Background technique [0002] Activated carbon particles have the advantages of convenient use, low price, developed mesopores and large pores, and are widely used in water treatment, air purification, catalyst carriers and other fields; activated carbon fibers have the characteristics of high specific surface area, developed micropores, and fast adsorption and desorption rates. , Widely used in high-demand occasions such as solvent recovery, water treatment, and air purification. However, the preparation cost of activated carbon fiber is too high, the mesoporosity is low, and the subsequent processing is difficult. Its single form and inconvenient filling highlight various defects in its practical application. Especially in the application of water treatment and catalyst carrier, the mesopor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30C01B31/10C01B31/08C01B32/312
CPCY02A50/20
Inventor 伍孝徐青
Owner SICHUAN CHUANGYUE CARBON MATERIAL
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