Preparation Technology of Low Iron and Low Chlorine Activated Carbon

A preparation process and technology of activated carbon, applied in the fields of carbon compounds, inorganic chemistry, chemical instruments and methods, etc., can solve the problems of not considering the influence of subsequent processes and finished product performance, not being able to use the reuse water treatment in the electronic field, and accelerating the dissolution of activated carbon impurities. , to achieve the effect of stable and reliable product quality, fast adsorption rate and low ash content

Active Publication Date: 2022-04-01
JIANGSU PURESTAR EP TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Activated carbon is a kind of porous carbon-containing adsorption material with great potential. It has a highly developed internal pore structure and a huge specific surface area. It is not only an excellent adsorbent, but also widely used in industrial production, agriculture, catalyst carrier, environment Protection, national defense, gas separation, storage, water purification, decolorization of pharmaceutical intermediates and raw material intermediates, air purification and many other fields are gradually connected with hydrogen storage, membrane separation, chemical separation, analytical sensors and physical bodies; In the preparation process, the influence of raw material differences on the subsequent process and the performance of the finished product was not considered, and at the same time, the dissolution of impurities in the activated carbon raw material was not continuously accelerated, resulting in excessive iron and chlorine in the prepared activated carbon, which could not be applied to the reuse water treatment in the electronic field

Method used

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Embodiment

[0016] The preparation process of the low-iron and low-chlorine activated carbon described in the specific embodiments of the present invention comprises the following steps: (1), raw material selection: the activated carbon raw material is destoned and iron-removed to reduce the impurity content in the raw material; (2), acid Washing: Put the selected raw materials into the reaction kettle, use 5% nitric acid for pickling, and at the same time pass steam into the reaction kettle, and control the pickling temperature at 50-70°C, and continue the pickling for 3 hours to speed up the removal of iron and chlorine. (3), a rinsing: use deionized water to carry out a rinsing time of 2h; (4), remove impurity ions: add 45cm of deionized water submerged in the carbon bed, and add 1% ammonia water and 0.05% PM, the impurities in the activated carbon raw material are continuously dissolved and precipitated, and the impurities in the activated carbon raw material are further reduced; (5), ...

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Abstract

The application discloses a preparation process of low-iron and low-chlorine activated carbon. The preparation process of the low-iron and low-chlorine activated carbon, its specific steps are as follows: (1), selection of raw materials; (2), pickling; (3), one-time rinsing; (4), removal of impurity ions; (5), two (6) drying; (7) secondary iron removal. The low-iron and low-chlorine activated carbon prepared by the low-iron and low-chlorine activated carbon has high strength, strong adsorption capacity, large adsorption capacity, less ash content, fast adsorption rate, no obvious cracks on the surface, and the manufactured products are extremely durable in water. Low iron and chlorine precipitation can be widely used in the field of electronics, as activated carbon for reuse water treatment.

Description

technical field [0001] The invention relates to the technical field of water recycling, in particular to a preparation process of low-iron and low-chlorine activated carbon. Background technique [0002] Activated carbon is a porous and highly potential carbon-containing adsorption material with a highly developed internal pore structure and a huge specific surface area. It is not only an excellent adsorbent, but also widely used in industrial production, agriculture, catalyst carrier, environment Protection, national defense, gas separation, storage, water purification, decolorization of pharmaceutical intermediates and raw material intermediates, air purification and many other fields are gradually connected with hydrogen storage, membrane separation, chemical separation, analytical sensors and physical bodies; In the preparation process, the influence of raw material differences on the subsequent process and the performance of the finished product was not considered, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/318
CPCC01B32/318
Inventor 王洪炳杨金杯
Owner JIANGSU PURESTAR EP TECH CO LTD
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