A kind of spherical activated carbon and preparation method thereof

A spherical activated carbon and spherical technology, applied in chemical instruments and methods, other chemical processes, alkali metal compounds, etc., can solve the problems of high cost, complex process, irregular shape, etc., and achieve high carbonization efficiency, simple process, and surface smooth effect

Active Publication Date: 2019-07-19
承德永宏活性炭有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the defects of complex process, high cost and irregular shape in the preparation of activated carbon in the prior art, the present invention proposes a preparation method of spherical activated carbon
This method solves the shortcomings of the traditional preparation of spherical activated carbon, which are complicated and costly

Method used

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  • A kind of spherical activated carbon and preparation method thereof

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Embodiment 1

[0030] A spherical activated carbon and a preparation method thereof. The specific process for preparing the spherical activated carbon is as follows:

[0031] Split the bamboo into 30~50mm long bamboo strips with a width of 3~5mm, dry naturally, and then pulverize with a micro-pulverizer. Take 10kg of bamboo powder with a particle size of 40~60 mesh, place it in an electric rotary cooking pot, add 40kg Sulfate solution with a mass concentration of 10%, first run idling for 20 minutes, then heat up to 165°C, heat up and cook for 60 minutes, and then pressurize at this temperature to 0.7MPa and pressure for 120 minutes to obtain mature bamboo Pulp; mix the bamboo pulp micropowder with 3kg spherical barium sulfate, add 1.5kg phosphoric acid, and place in a kneader, set the fast blade speed to 42r / min, the slow blade speed to 28r / min, and the kneading temperature to 95°C. The kneading time is 1.5h to obtain a spherical material with inorganic spherical micropowder as the core and ba...

Embodiment 2

[0034] A spherical activated carbon and a preparation method thereof. The specific process for preparing the spherical activated carbon is as follows:

[0035] Split the bamboo into 30~50mm long bamboo strips with a width of 3~5mm, naturally air-dry, and then pulverize with a micro grinder. Take 10kg of bamboo powder with a particle size of 40~60 mesh, place it in an electric rotary cooking pot, and add 50kg Sulfate solution with a mass concentration of 10%, run idling for 10 minutes, then rise to 160°C, the heating and cooking time is 80 minutes, and then pressurize to 0.6MPa at a constant temperature at this temperature, and the pressure cooking time is 100 minutes to obtain mature bamboo Pulp; mix the bamboo pulp with 3.6kg of glass beads, add 1.8kg of phosphoric acid, and place it in a kneader. Set the fast blade speed to 35r / min, the slow blade speed to 24r / min, and the kneading temperature to 100°C. The kneading time is 1.5h to obtain a spherical material with inorganic sph...

Embodiment 3

[0038] A spherical activated carbon and a preparation method thereof. The specific process for preparing the spherical activated carbon is as follows:

[0039] Split the bamboo into 30~50mm long bamboo strips with a width of 3~5mm, dry naturally, and then pulverize with a micro grinder. Take 10kg of bamboo powder with a particle size of 40~60 mesh, place it in an electric rotary cooking pot and add 60kg Sulfate solution with a mass concentration of 10%, run idling for 15 minutes, then heat up to 170°C, heat up the cooking time for 70 minutes, and then press at this temperature to constant temperature and pressurize to 0.7MPa, pressure cooking time for 110 minutes, to obtain mature bamboo Pulp; mix the bamboo pulp with 4.2kg ceramic microspheres, add 2.8kg phosphoric acid, and place it in a kneader. Set the fast blade speed to 42r / min, the slow blade speed to 28r / min, and the kneading temperature to 90°C. The kneading time is 1.2h to obtain a spherical material with inorganic sphe...

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Abstract

The invention belongs to the technical field of spherical activated carbon and provides spherical activated carbon and a preparation method thereof. The preparation method comprises the steps of carrying out micronization on bamboo woods, carrying out stewing and maturing to obtain bamboo pulp, mixing with spherical micro-powder such as spherical barium sulfate and glass beads, supplementing with a small amount of phosphoric acid, carrying out kneading to package the surface of the spherical micro-powder with the bamboo pulp, carrying out carbonization by virtue of a tunnel kiln, activating by virtue of water steam or carbon dioxide, finally washing until the bamboo pulp is neutral, and drying, so as to obtain the spherical activated carbon. The preparation method is simple in preparation process and low in cost; and the spherical activated carbon which is uniformly dispersed and uniform in particle size can be obtained.

Description

Technical field [0001] The invention relates to the technical field of preparation of spherical activated carbon, in particular to a spherical activated carbon and a preparation method thereof. Background technique [0002] Activated carbon preparation technology is relatively mature, but due to different raw materials and carbonization processes, it usually takes the form of irregular powder, large blocks or rods, while there is a huge gap in controllable high-quality activated carbon. Spherical activated carbon has high interfacial activity and strong adsorption capacity. It also has some excellent other characteristics, such as small particles, good filling properties, high fluidity, narrow particle size distribution, high strength, and high wear resistance. It is used in solvent recovery, gas It has high application value in treatment, water treatment, high-absorption materials, medicine, etc. [0003] In recent years, some technicians have studied the preparation technology o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/336C01B32/318B01J20/20B01J20/28B01J20/30
CPCB01J20/20B01J20/28019B01J2220/485C01P2004/32C01P2004/60
Inventor 陈庆曾军堂陈兵
Owner 承德永宏活性炭有限责任公司
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