Preparation method of peanut shell based foam carbon

A technology of peanut shells and foamed carbon, applied in the field of foamed carbon, can solve the problems of low preparation cost, brittleness and brittleness, limited raw material resources, etc., and achieve the effects of large specific surface area, strong adsorption capacity and low preparation cost

Inactive Publication Date: 2016-09-21
陈毅忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention: the raw materials for the preparation of foam carbon materials are mainly non-biomass raw materials, such as asphalt, polymer, etc., and there are limited and non-renewable raw material resources, while the biomass-based foam carbon has poor strength, The defect of brittleness and fragility provides a preparation method of peanut shell-based foam charcoal. The invention first liquefies peanut shells, makes peanut shell-based thermosetting resin from liquefied peanut shells and formaldehyde, and then obtains short bamboo charcoal from bamboo strips fiber, and put short bamboo charcoal f...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0022] First, weigh 1 kg of peanut shells and put them into an airflow mill to crush them, pass through a 100-mesh standard sieve to obtain peanut shell powder, put them in an oven and dry them at 105 °C for 6 hours, weigh 200 g of dried peanut shell powder, and put them into a mixer and reflux Add 1L bamboo tar and 200mL mixed acid solution to the three-necked flask of the device, move the flask into an oil bath at 130°C, start the stirrer to keep warm and reflux for 1 hour; after the above reaction is completed, cool the reaction solution to room temperature, Add 800mL of absolute ethanol, stir with a stirring bar for 20min, filter to remove the filter residue, obtain the filtrate, transfer the filtrate to a rotary evaporator, and remove the absolute ethanol by rotary evaporation at 45°C to obtain liquefied peanut shells; measure 700mL of mass concentration to be 30 % formaldehyde solution and 200mL deionized water were added to the liquefied peanut shells obtained above, sti...

example 2

[0026] First, weigh 1.5kg of peanut shells and put them into an airflow mill to crush them, pass through a 100-mesh standard sieve to obtain peanut shell powder, put them in an oven and dry them at 108°C for 7 hours, weigh 250g of dried peanut shell powder and put them into a mixer and Add 1.5L bamboo tar and 250mL mixed acid solution to the three-necked flask of the reflux device, move the flask into an oil bath at 135°C, start the stirrer to keep warm and reflux for 1.5h; after the above reaction is completed, cool the reaction solution to room temperature , add 850mL of absolute ethanol to it, stir with a stirring bar for 25min, filter to remove the filter residue, obtain the filtrate, transfer the filtrate to a rotary evaporator, and remove the absolute ethanol by rotary evaporation at 50°C to obtain liquefied peanut shells; measure 750mL of mass Add 30% formaldehyde solution and 250mL deionized water to the liquefied peanut shells obtained above, stir with a mixer, add 1...

example 3

[0030] First, weigh 2kg of peanut shells and put them into an airflow mill to crush them, pass through a 100-mesh standard sieve to obtain peanut shell powder, put them in an oven and dry them at 110°C for 8 hours, weigh 300g of dried peanut shell powder and put them into a mixer and reflux Add 2L bamboo tar and 300mL mixed acid solution to the three-necked flask of the device, move the flask into an oil bath at 140°C, start the stirrer to keep warm and reflux for 2 hours; after the above reaction is completed, cool the reaction solution to room temperature, Add 900mL of absolute ethanol, stir with a stirring bar for 30min, filter to remove the filter residue, obtain the filtrate, transfer the filtrate to a rotary evaporator, and remove the absolute ethanol by rotary evaporation at 55°C to obtain liquefied peanut shells; measure 800mL with a mass concentration of 30 % formaldehyde solution and 300mL deionized water were added to the liquefied peanut shells obtained above, stirr...

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Abstract

Belonging to the field of foam carbon, the invention discloses a preparation method of peanut shell based foam carbon. The method consists of: firstly conducting peanut shell liquefaction, making liquefied peanut shell and formaldehyde into peanut shell based thermosetting resin, and then acquiring short bamboo charcoal fiber from bamboo splits, and putting the short bamboo charcoal fiber and peanut shell based thermosetting resin, p-toluenesulfonic acid, sodium bicarbonate and fatty glyceride as raw materials into a mould to conduct foaming to obtain short bamboo charcoal fiber modified foamed resin, and finally charring the short bamboo charcoal fiber modified foamed resin to obtain the peanut shell based foam carbon. The peanut shell based foam carbon prepared by the method provided by the invention has uniform foam carbon aperture, large specific surface area and strong adsorption capacity, utilizes the short bamboo charcoal fiber modified foamed resin to enhance the mechanical strength of foam carbon so as to avoid crack phenomenon, and by using peanut shell as the foam carbon base material, the preparation cost is low.

Description

Technical field [0001] The present invention disclosed a preparation method for peanut shell base foam charcoal, which belongs to the field of foam charcoal. Background technique [0002] Foam charcoal is a lightweight mesh material that uses high temperature foaming as a front body that uses organic substances as charcoal through high temperature foam and high temperature carbonization to obtain a large -sized pores formed by the coil atom.According to the micro -structure of the hole, it can be divided into graphite foam charcoal and non -graphical foam charcoal. Both have excellent physical and chemical stability. [0003] The preparation raw materials for foam charcoal materials are mainly non -biomass raw materials, such as asphalt and polymers. There are limited and non -renewable problems of raw material resources.Because the phenolic resin has the characteristics of high carbon rate after thermal solution, it has become a preparation of foamy charcoal preparation material...

Claims

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Application Information

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IPC IPC(8): C01B31/02
CPCC01P2006/10C01P2006/12C01P2006/16C01P2006/32
Inventor 陈毅忠林茂平王统军
Owner 陈毅忠
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