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Method for preparing bean tendril absorbent charcoal

The technology of vine activated carbon and bean vine is applied in the field of preparation of plant-based activated carbon, which can solve problems such as environmental pollution and achieve the effects of low price, strong adsorption effect and fast preparation speed.

Inactive Publication Date: 2008-07-16
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method not only provides a new way for the comprehensive utilization of beans and vines, turning waste into profit, but also solves the problem of environmental pollution in the process of traditional activated carbon preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Cut the bean tendrils into small pieces, dry them at 100°C, and crush them into crumbs; immerse them in 30% phosphoric acid at a mass ratio of 1:1.5 for 8 hours. Place in a carbonization furnace or muffle furnace, heat up to 360°C, carbonize and activate for 100 minutes, stop heating, and simmer in the furnace for 1.5 hours. Take it out, wash it with distilled water or deionized water at 90-100°C until the pH value is 6.0-7.0, and dry it to prepare the bean-vine activated carbon.

Embodiment 2

[0020] Cut the bean tendrils into small pieces, dry them at 100°C, and crush them into crumbs; soak them in phosphoric acid with a concentration of 40% for 10 hours at a mass ratio of 1:1.8. Place it in a carbonization furnace or muffle furnace, heat up to 390°C, carbonize and activate for 90 minutes, stop heating, and simmer in the furnace for 1.5 hours. Take it out, wash it with distilled water or deionized water at 90-100°C until the pH value is 6.0-7.0, and dry it to prepare the bean-vine activated carbon.

Embodiment 3

[0022] Cut the bean tendrils into small pieces, dry them at 100°C, and crush them into crumbs; soak them in 50% phosphoric acid for 12 hours at a mass ratio of 1:2.2. Place in a carbonization furnace or a muffle furnace, heat up to 420°C, carbonize and activate for 80 minutes, stop heating, and simmer in the furnace for 1.5 hours. Take it out, wash it with distilled water or deionized water at 90-100°C until the pH value is 6.0-7.0, and dry it to prepare the bean-vine activated carbon.

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PUM

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Abstract

The invention relates to preparation of vegetable active carbon, in particular to a method for manufacturing active carbon with bean vines. The manufacturing method mainly comprises the following steps that dried bean vines are cut into segments which are then dried and crashed; after dipped in phosphoric acid solution or peracetic acid solution, the material is placed in a carbonization furnace or a muffle furnace for carbonization and activation; then the material is washed with distilled water until the pH value is from 6.0 to 7.0; the active carbon of bean vines is obtained after drying. The manufacturing method is simple in technology, easy in material availability, high in carbon content rate and strong in adsorption effect. The invention makes the waste to the worth, overcomes the problems of environmental pollution and resource waste in traditional technology, with remarkable economic, environmental and social benefits.

Description

technical field [0001] The invention relates to the preparation of plant-based activated carbon, in particular to a method for preparing activated carbon from bean vines. Background technique [0002] With the development of science and people's increasing attention to environmental protection issues, activated carbon is more and more widely used in environmental protection, pharmaceutical, chemical and other fields. Activated carbon can be prepared from most carbonaceous substances, such as wood, coal, fruit shells, waste tires, etc. However, our country lacks wood resources, and the preparation cost is high; the husks are scattered and difficult to collect; waste plastics and tires are used as raw materials, and the preparation process is likely to pollute the environment. [0003] Bean vines are rich in sources and low in price, and are mostly used as waste. Using bean vine as raw material to prepare activated carbon not only makes bean vine turn waste into profit, bu...

Claims

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Application Information

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IPC IPC(8): C01B31/08
Inventor 张成禄张建李超史倩倩王丽张凯孙丰凯
Owner SHANDONG UNIV
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