Preparation process of phenolic resin-based spherical activated carbon

A spherical activated carbon, phenolic resin technology, applied in inorganic chemistry, non-metallic elements, carbon compounds, etc., can solve the problems of poor adsorption, high impurity content, irregular structure of activated carbon, etc., to achieve uniform carbonization, good controllability of pore size, Smooth and even flow rate

Pending Publication Date: 2020-10-16
上海欧亚合成材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the problems of irregular structure, high impurity content, and poor adsorption of activated carbon in the existing market, the purpose of this application is to provide a preparation process for phenolic resin-based spherical activated carbon, which has a simple and controllable preparation method and is suitable for industrial production. Advantages, the prepared activated carbon microspheres have uniform particle size, less impurity content, and strong adsorption

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  • Preparation process of phenolic resin-based spherical activated carbon
  • Preparation process of phenolic resin-based spherical activated carbon
  • Preparation process of phenolic resin-based spherical activated carbon

Examples

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Effect test

Embodiment 1

[0036] A preparation process for phenolic resin-based spherical activated carbon, comprising the steps of:

[0037] S1, Preparation of phenolic resin microspheres: According to the weight ratio of 1:1:0.01:0.05:4, 200g phenol, 200g formaldehyde, 2g triethylamine, 10g methylenebicyclohexaneamine and 800g deionized water were added to the reactor During the process, the temperature was raised to 120°C to ensure that the pressure in the reactor was 0.2 MPa, and emulsified at 300 rpm for 2 hours to obtain phenolic resin microspheres;

[0038] S2, curing and carbonization: place the phenolic resin microspheres in the quartz hearth of a rotary furnace with a rotation speed of 3r / min, pass in nitrogen for protection, raise the temperature to 150°C at 1°C / min, keep it for 2h, and complete the curing; Under protection, continue to heat up to 600°C at 3°C / min, keep warm for 1h, and complete carbonization;

[0039] S3, Activation: Stop feeding nitrogen, and feed water vapor at a tempera...

Embodiment 2

[0043] A preparation process for phenolic resin-based spherical activated carbon, comprising the steps of:

[0044] S1, preparation of phenolic resin microspheres: According to the weight ratio of 1:2:0.02:0.07:5, 200g phenol, 400g formaldehyde, 4g triethylamine, 14g methylenebicyclohexaneamine and 1000g deionized water were added to the reactor During the process, the temperature was raised to 120°C to ensure that the pressure in the reactor was 0.2 MPa, and emulsified at 300 rpm for 2 hours to obtain phenolic resin microspheres;

[0045]S2, curing and carbonization: place the phenolic resin microspheres in the quartz hearth of a rotary furnace with a rotation speed of 3r / min, pass in nitrogen for protection, raise the temperature to 150°C at 1°C / min, keep it for 2h, and complete the curing; Under protection, continue to heat up to 600°C at 3°C / min, keep warm for 1h, and complete carbonization;

[0046] S3, Activation: Stop feeding nitrogen, and feed water vapor at a tempera...

Embodiment 3

[0049] A preparation process for phenolic resin-based spherical activated carbon, comprising the steps of:

[0050] S1, preparation of phenolic resin microspheres: According to the weight ratio of 1:3:0.03:0.1:6, 200g phenol, 600g formaldehyde, 6g triethylamine, 20g methylenebicyclohexaneamine and 1200g deionized water were added to the reactor During the process, the temperature was raised to 120°C to ensure that the pressure in the reactor was 0.2 MPa, and emulsified at 300 rpm for 2 hours to obtain phenolic resin microspheres;

[0051] S2, curing and carbonization: place the phenolic resin microspheres in the quartz hearth of a rotary furnace with a rotation speed of 3r / min, pass in nitrogen for protection, raise the temperature to 150°C at 1°C / min, keep it for 2h, and complete the curing; Under protection, continue to heat up to 600°C at 3°C / min, keep warm for 1h, and complete carbonization;

[0052] S3, Activation: Stop feeding nitrogen, and feed water vapor at a tempera...

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Abstract

The invention relates to the technical field of activated carbon preparation, and particularly discloses a preparation process of phenolic resin-based spherical activated carbon, which comprises the following steps: S1, adding phenol, formaldehyde, a catalyst, a curing agent and a solvent into a reaction kettle, and emulsifying to obtain phenolic resin microspheres; S2, placing the phenolic resinmicrospheres in a rotary furnace, introducing inert gas for protection, increasing the temperature to 150-250 DEG C at the speed of 1-10 DEG C/min, conducting heat preservation for 0-2 h, and completing curing; continuously heating to 600-900 DEG C at the speed of 3-10 DEG C/min under the protection of inert gas, and keeping the temperature for 0-1 hour to finish carbonization; s3, stopping introducing the inert gas, introducing water vapor with the temperature of 200-330 DEG C for activating treatment, and cooling to obtain activated carbon microspheres with mixed particle sizes; and S4, sieving the activated carbon microspheres with the mixed particle size by adopting sieves with different mesh numbers to obtain the phenolic resin-based spherical activated carbon with uniform particle size distribution. The activated carbon microspheres prepared by the preparation method disclosed by the invention are uniform in particle size, low in impurity content and high in adsorbability.

Description

technical field [0001] The application relates to the technical field of activated carbon preparation, more specifically, it relates to a preparation process of phenolic resin-based spherical activated carbon. Background technique [0002] Activated carbon is a porous carbon with high specific surface area and porosity prepared by removing non-carbon elements from materials containing carbon elements (such as coal, fruit shells, organic polymers, etc.) through high-temperature carbonization, and by physical or chemical activation. Material. Activated carbon has been widely used in many fields such as air purification, food decolorization, metal extraction, pharmaceutical refining, energy storage and catalyst carrier. [0003] As a material with stable performance and no side effects, carbon material has great research value in the process of drug carrier and molecular adsorption. Directly packing activated carbon into capsules is used as an oral medicine, which has made a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/318C01B32/336
CPCC01B32/318C01B32/336C01P2004/61C01P2004/60C01P2006/12C01P2006/14
Inventor 陈招朱永茂
Owner 上海欧亚合成材料股份有限公司
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