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Washing method for electrical carbon material

A carbon material, pickling technology, applied in the direction of using liquid cleaning methods, cleaning methods and utensils, chemical instruments and methods, etc., can solve the problem of low purity of electric carbon materials, insufficient performance of electric carbon materials The material cannot meet the needs of technological development and other problems, so as to achieve the effect of high cleaning efficiency and short cleaning process

Inactive Publication Date: 2013-05-29
BEIJING ZHONGSHIHONG INSTALLATION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the preparation of electric carbon materials, a certain amount of metal ions, non-metal ions and various impurities will be produced. If they are not cleaned, the performance of electric carbon materials will not be able to be achieved due to the low purity of electric carbon materials. fulfil requirements
The existing electric carbon materials will also undergo some simple cleaning during the preparation process. It can be said that some impurities in the electric carbon materials are washed out, but with the continuous improvement of the use requirements of the electric carbon materials, the electric carbon materials after simple cleaning can no longer Meet the needs of technological development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Firstly, the carbonized activated carbon material is added to the pickling kettle with a concentration of 30% acid solution. 0.5 hours, after repeated pickling 3 times, take out the electric carbon material, the weight ratio of the electric carbon material to the acid solution is 1:8 during each pickling, pickling can remove the metal ions and impurities in the electric carbon material, further adjustment The pore structure of the carbon material expands the scope of use of the activated carbon; take out the acid-washed carbon material and put it into deionized water, put it into deionized water and boil it for 0.5 hours, and repeat the deionized water boiling and washing 10 times until the activated carbon The ph value of the material is up to 6.8-7.5, and the ratio of the weight of the electric carbon material to the weight of deionized water is 1:10 during each boiling and washing. Various metal and non-metal ions, and finally get the pure electric carbon material wi...

Embodiment 2

[0022] First, add the carbonized activated carbon material into the pickling tank equipped with a 24% acid solution, the acid solution is a mixture of hydrochloric acid and nitric acid aqueous solution, and then pass water vapor into the pickling tank to boil and keep 0.8 hours, after repeated pickling twice, take out the electric carbon material, the weight ratio of the electric carbon material to the acid solution is 1:12 during each pickling, pickling can remove the metal ions and impurities in the electric carbon material, further adjustment The pore structure of the carbon material expands the scope of use of the activated electric carbon; the electric carbon material after pickling is taken out and placed in deionized water, then boiled with steam and kept for 0.8 hours, and repeated deionized water boiling and washing 7 times until the electric carbon The ph value of the material is up to 6.5-7.5, and the ratio of the weight of the electric carbon material to the weight ...

Embodiment 3

[0024] First, add the carbonized activated carbon material into the acid washing kettle with a concentration of 27% acid solution, the acid solution is a mixture of one or more of sulfuric acid, hydrochloric acid, and nitric acid aqueous solution, and then add Put water vapor into the washing kettle and boil it for 0.6 hours. Repeat the pickling for 4 times and take out the electric carbon material. The weight ratio of the electric carbon material to the acid solution is 1:10 during each pickling. Pickling can remove the electric carbon. Metal ions and impurities in the material, further adjust the pore structure of the carbon material, and expand the scope of use of the activated electric carbon; take out the electric carbon material after pickling and put it into deionized water, then pass it into steam and boil for 0.9 hours, and repeat Deionized water is boiled and washed 9 times until the pH value of the electric carbon material is 7-8, wherein the ratio of the weight of t...

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PUM

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Abstract

The invention discloses a washing method for electrical carbon material. The washing method includes the following steps: first, the electrical carbon material after being carbonized and activated is added into a pickling kettle filled with an acid solution, then, the electrical carbon material is maintained for 0.5-1 hours after being boiled with water vapor led into the pickling kettle, and the electrical carbon material is taken out after pickling is repeated for 2-5 times; the electrical carbon material after being pickled is taken out, put into deionized water and maintained for 0.5-1 hours after being boiled with water vapor led into the pickling kettle, and the process of boiling washing by using of the deionized water is repeated for 5-10 times till the potential of hydrogen (PH) value of the electrical carbon material is 6.5-8; and the electrical carbon material is taken out from the deionized water, and then the pure electrical carbon material with the parts per million (PPM) degree smaller than or equal to 100 is obtained. According to the washing method for the electrical carbon material, through the pickling and the boiling washing by using of the deionized water, metal ions, nonmetallic ions and impurities are removed, the bore diameter structure of the electrical carbon material is adjusted, the application range of active electrical carbon is enlarged, and the pure electrical carbon material with the PPM degree smaller than or equal to 100 can be obtained finally; and the washing method for the electrical carbon material has the advantages of being short in procedure, high in efficiency and suitable for production of highly-purified electrical carbon material.

Description

technical field [0001] The invention relates to the technical field of preparation of electric carbon materials, in particular to a cleaning method with short flow, high cleaning efficiency and high purity electric carbon materials. Background technique [0002] During the preparation of electric carbon materials, a certain amount of metal ions, non-metal ions and various impurities will be produced. If they are not cleaned, the performance of electric carbon materials will not be able to be achieved due to the low purity of electric carbon materials. fulfil requirements. The existing electric carbon materials will also undergo some simple cleaning during the preparation process. It can be said that some impurities in the electric carbon materials are washed out, but with the continuous improvement of the use requirements of the electric carbon materials, the electric carbon materials after simple cleaning can no longer Meet the needs of technological development. Conten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B3/08
Inventor 刘明秋邹开良周德胜
Owner BEIJING ZHONGSHIHONG INSTALLATION ENG