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Method for preparing medical active carbon tube by utilizing hairs

A technology for activated carbon and hair, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of low product yield, long process cycle, large energy consumption, etc., and achieve high product yield and simple preparation process. , the effect of low energy consumption

Inactive Publication Date: 2014-01-22
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The activation stage in the process is generally at 460-600 o Activation at 24-72 hours under C temperature conditions, so the process cycle of manufacturing pharmaceutical grade activated carbon is long, the energy consumption is large, and the product yield is low

Method used

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  • Method for preparing medical active carbon tube by utilizing hairs
  • Method for preparing medical active carbon tube by utilizing hairs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see figure 1 , a kind of method utilizing hair to prepare medical active carbon tube, concrete steps are:

[0030] Wash the hair several times with water to remove the impurities attached to the hair, at 105±5 o C dried and cut into small pieces with a length less than 5mm; then place this small piece of hair material in a phosphoric acid solution with a mass concentration of 30%, at 55 ± 5 o Soak for 24 hours at C, then activate with a microwave power of 300W for 5 minutes, then rinse the activated hair with deionized water and dry it at 105±5 o C drying; finally the above-mentioned treated hair is placed in a tubular reactor for high-temperature carbonization treatment, and the high-temperature carbonization treatment process is: the tubular reactor is heated at a rate of 10 o C / min heating up to 270 o After C, keep it warm for 30 minutes, and finally cool to room temperature and take it out. The finished product is the medical activated carbon tube.

[0031] fi...

Embodiment 2

[0033] A method for preparing medical activated carbon tubes from hair, the specific steps are:

[0034] Wash the hair several times with water to remove the impurities attached to the hair, at 105±5 o C dried and cut into small pieces with a length less than 5mm; then place this small piece of hair material in a phosphoric acid solution with a mass concentration of 30%, at 55 ± 5 o Soak at C for 24 hours, then use a microwave activation treatment with a power of 450W for 5 minutes, then rinse the microwave-activated hair with deionized water and dry it at 105±5 o C drying; the above-mentioned dried hair is placed in a tubular reactor for high-temperature carbonization treatment, and the heating rate of carbonization treatment is 10 o C / min, when the temperature reaches 250 o C, keep it warm for 30 min, and finally take it out after it is cooled to room temperature to obtain the medical activated carbon tube.

[0035] figure 2 Middle B is the scanning electron microscop...

Embodiment 3

[0037] A method for preparing medical activated carbon tubes from hair, the specific steps are:

[0038] Wash the hair several times with water to remove the impurities attached to the hair, at 105±5 o C dried and cut into small pieces with a length less than 5mm; this small piece of hair material is placed in a phosphoric acid solution with a mass concentration of 30%, at 55 ± 5 oC Soak it under water for 24 hours, then use a microwave activation treatment with a power of 600W for 5 minutes, then rinse the microwave-activated hair with deionized water and dry it at 105±5 oC is dried, and then the above-mentioned dried hair is placed in a tubular reactor to carry out high-temperature carbonization treatment, and the heating rate of high-temperature carbonization treatment is 10 o C / min, when reaching the set temperature 230 o C, keep warm for 30 min, and take it out from the tubular reactor after it is cooled to room temperature, and the taken out is the medical activated...

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Abstract

The invention relates to a method for preparing a medical active carbon tube by utilizing hairs. The method comprises the following steps of: firstly cutting the hairs into small sections, then soaking the small sections of hairs into activating agent solution, then carrying out microwave activation, and finally carrying out high-temperature carbonization. The method has the beneficial effects that 1, the preparation process is simple, energy-saving and environment-friendly; 2, the prepared medical active carbon is stable, and the thickness of the tube wall is even, and the prepared medical active carbon is excellent medical active carbon; 3, the preparation process is short in period, and low in energy consumption, and the product yield is high; and 4, a new path for raw materials of the medical active carbon tube is opened up, and the method has important application prospect.

Description

technical field [0001] The invention relates to a method for preparing medical activated carbon tubes, in particular to a method for preparing medical activated carbon tubes from hair. Background technique [0002] Medical activated carbon tube is a kind of special activated carbon that can be used in pharmaceutical, medical auxiliary materials, detoxification and other medical fields. In addition to good adsorption performance, this type of activated carbon tube also has high requirements for the content of various metal elements contained in it. It is difficult for activated carbon tubes using general plants and coal as raw materials to meet the requirements. [0003] The current method of preparing pharmaceutical-grade activated carbon usually uses wood, coal, fruit shells, etc. as carbonaceous raw materials, and undergoes major processes such as granulation, drying, carbonization, activation, and purification. The activation stage in the process is generally at 460-600 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/12C01B32/324C01B32/342C01B32/348
Inventor 陈悟王敏王训该王鑫苟峄张如全耿世洲祝荻
Owner WUHAN TEXTILE UNIV
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