A kind of pitch-based mesoporous spherical activated carbon and preparation method thereof

An activated carbon and pitch-based technology, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve problems such as unstable product quality, complicated preparation methods, and low production efficiency, achieve good pore-forming performance, and simplify processes , the effect of improving production efficiency

Inactive Publication Date: 2016-01-20
SICHUAN CHUANGYUE CARBON MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems of complex preparation methods, low production efficiency, high energy consumption and unstable product quality in the existing spherical activated carbon, and to provide a pitch-based mesoporous spherical activated carbon and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A pitch-based mesoporous spherical activated carbon in this embodiment, wherein: the activated carbon has a diameter of 0.1-0.6mm, a strength of 90-95%, and a specific surface area of ​​600-1500m 2 / g, ash content <1000ppm, mesoporosity 50-85%, average pore diameter 2-3.5nm.

[0026] The preparation method of pitch-based mesoporous spherical activated carbon in the present embodiment, wherein: comprise the following steps:

[0027] 1) dissolving phenolic resin and inorganic nickel salt in ethanol, wherein the consumption of phenolic resin is 0.1% of ethanol weight, and the consumption of inorganic nickel salt is 0.05% of ethanol weight;

[0028] 2) Sieve asphalt balls with a softening point of 130-180°C and a diameter of 0.1-0.6mm;

[0029] 3) Place the asphalt pellets sieved in step 2) in a normal-pressure container, soak them with the impregnation solution prepared in step 1) for 30 minutes, filter out the asphalt pellets, and then dry the filtered pitch pellets at a...

Embodiment 2

[0036] The pitch-based mesoporous spherical activated carbon in this example is the same as the pitch-based mesoporous spherical activated carbon in Example 1.

[0037] The preparation method of pitch-based mesoporous spherical activated carbon in the present embodiment, wherein: comprise the following steps:

[0038] 1) dissolving phenolic resin and inorganic nickel salt in ethanol, wherein the consumption of phenolic resin is 10% of ethanol weight, and the consumption of inorganic nickel salt is 5% of ethanol weight;

[0039] 2) Sieve asphalt balls with a softening point of 130-180°C and a diameter of 0.1-0.6mm;

[0040] 3) Place the asphalt pellets sieved in step 2) in a normal-pressure container, soak them with the impregnation solution prepared in step 1) for 1 min, filter out the asphalt pellets, and then dry the filtered pitch pellets at a temperature of 20°C 100min;

[0041] 4) Soak the asphalt balls prepared in step 3) with p-toluenesulfonic acid with an acidity of ...

Embodiment 3

[0047] The pitch-based mesoporous spherical activated carbon in this example is the same as the pitch-based mesoporous spherical activated carbon in Example 1.

[0048] The preparation method of pitch-based mesoporous spherical activated carbon in the present embodiment, wherein: comprise the following steps:

[0049] 1) dissolving phenolic resin and inorganic nickel salt in ethanol, wherein the consumption of phenolic resin is 5% of ethanol weight, and the consumption of inorganic nickel salt is 2.5% of ethanol weight;

[0050] 2) Sieve asphalt balls with a softening point of 130-180°C and a diameter of 0.1-0.6mm;

[0051] 3) Place the asphalt pellets sieved in step 2) in a normal-pressure container, soak them with the impregnation solution prepared in step 1) for 15 minutes, filter out the asphalt pellets, and then dry the filtered pitch pellets at a temperature of 60°C 50min;

[0052] 4) Soak the asphalt balls prepared in step 3) with p-toluenesulfonic acid with an acidit...

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Abstract

The invention belongs to the technical field of activated adsorption materials and preparation methods thereof and in particular relates to asphalt-based mesoporous spherical activated carbon and a preparation method thereof. The invention mainly solves the technical problems such as complex preparation method, low production efficiency, high energy consumption and instable product quality existing in the conventional spherical activated carbon. With the adoption of the technical scheme, the invention discloses asphalt-based mesoporous spherical activated carbon and a preparation method thereof, wherein the diameter of the activated carbon is 0.1-0.6mm, the strength is 90-95 percent, the specific surface area is 600-1500m<2> / g, the ash content is less than 1000ppm, the mesoporous rate is 50-85 percent, and the average particle size is 2-3.5nm. The invention has the advantages of simple preparation method, high production efficiency, low energy consumption and stable product quality.

Description

technical field [0001] The invention belongs to the technical field of active adsorption materials and preparation methods thereof, and in particular relates to a pitch-based mesoporous spherical activated carbon and a preparation method thereof. Background technique [0002] Spherical activated carbon is a high-performance activated carbon successfully developed by industrialized countries such as Japan, the United States, Germany and the former Soviet Union in the late 1970s. With excellent characteristics such as fast attachment rate, it has entered the stage of industrialization abroad and has been popularized and applied in the fields of blood purification, catalyst carrier, organic solvent recovery, precious metal recovery, and chromatographic packed columns. The preparation process mainly includes: ball forming, solidification, and carbonization activation. At present, according to the different raw materials, it is mainly divided into pitch-based spherical activated...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/10C01B32/336
Inventor 伍孝李于鲍烈华
Owner SICHUAN CHUANGYUE CARBON MATERIAL
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