A kind of method for preparing activated carbon from residue of traditional Chinese medicine
A technology for preparing activated carbon and activated carbon, which is applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of final product performance differences, and achieve the effects of excellent performance, high yield, and large specific surface area
Active Publication Date: 2018-02-16
ZHEJIANG FORESTRY UNIVERSITY
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Different preparation methods will result in significant differences in the performance of the final product
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[0021] The method for preparing activated carbon from the residue of traditional Chinese medicine provided by the present invention will be further illustrated by specific examples below.
[0022] (1) Firstly, the residue of Atractylodes macrocephala was washed with distilled water to remove soluble impurities, dried at 105°C for 48h, ground and passed through a 200-mesh sieve, and 10g of the treated residue of Atractylodes macrocephala was taken.
[0023] (2) Carry out carbonization of the residue of Atractylodes macrocephala treated in step 1, with a carbonization temperature of 900°C and a carbonization time of 4h.
[0024] (3) Activate the residue of Atractylodes macrocephala treated in step 2 with an H3PO4 solution with a concentration of 50wt%, and ultrasonically treat it;
[0025] (4) Put the activated carbonized material in step 3 into an activation furnace, activate it with water vapor at high temperature, the activation temperature is 600-800℃, and the activation time is 0.5-...
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Abstract
The invention discloses a method for preparing active carbon from wastes of traditional Chinese medicines. The method comprises the following steps: carrying out dry distillation carbonization on pre-treated wastes of traditional Chinese medicines in a carbonization furnace; further activating the wastes by use of an 50wt% H3PO4 solution, and carrying out ultrasonic treatment on the wastes; putting the wastes into an activation furnace, activating the wastes with water vapor at a high temperature; and crushing, washing, drying, grading and screening carbonized wastes to obtain the active carbon. The active carbon prepared by the method is high in yield, is low in preparation cost, is environmentally friendly and free from pollution; the prepared active carbon is developed in pore, is great in specific surface area, is high in adsorption effect, is excellent in performance, and can effectively remove harmful pollutants.
Description
Technical field [0001] The invention specifically relates to a method for preparing activated carbon from the residue of traditional Chinese medicine. Background technique [0002] Charcoal is a necessary product in real life. In recent years, many people have been studying the use of carbon-containing waste in industrial and agricultural production to prepare activated carbon. Traditional Chinese medicine residues are wastes produced in the extraction and production of Chinese medicine. The annual discharge of Chinese medicine residues in my country is as high as 30 million tons. The early disposal of Chinese medicine residues mainly included landfill, incineration, and stacking, which not only cost a lot of money, but also caused waste of resources and serious environmental pollution problems. Using traditional Chinese medicine residues instead of wood raw materials to produce activated carbon can not only reduce the production cost of activated carbon, but also reduce the di...
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IPC IPC(8): C01B32/324C01B32/336C01B32/342
CPCC01P2006/12C01P2006/14C01P2006/21
Inventor 郭明郦行杰方玲
Owner ZHEJIANG FORESTRY UNIVERSITY