Method for preparing carbon material from waste high polymer material

A technology of polymer materials and carbon materials, which is applied in the preparation/purification of carbon, chemical instruments and methods, nano-carbon, etc., can solve the problems of reducing the effective contact area, difficult to mix activators uniformly, and non-uniform catalytic reaction, etc. Achieve the effect of increasing the contact area, improving the carbonization and activation performance, and simple process

Inactive Publication Date: 2021-10-01
HEBEI UNIV OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the excellent mechanical properties of polymer materials, large molecular weight, high melting point or difficulty in melting, it is difficult to break and mix uniformly with the activator, which leads to a decrease in the effective contact area with the activator, a large amount of activator, and Problems such as inhomogeneous catalytic reaction and low yield of reaction products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Put 1g of waste polyurethane sample into 1mL ferric chloride saturated solution dissolved in acetic acid, and soak at 20°C for 240h; put the swollen waste polyurethane sample into a tube furnace, heat from room temperature to 50°C, keep the temperature for 10h, and heat The separated solvent was condensed and recovered for reuse, then the temperature was raised to 300° C. and kept at a constant temperature for 10 hours, and finally the temperature was raised to 500° C. and kept at a constant temperature for 10 hours to obtain a magnetic activated carbon material.

Embodiment 2

[0017] Put 1g of waste polyurethane sample into 1000mL acetic acid solution of cobalt acetate with a concentration of 0.1g / mL, and soak it at 35°C for 35h; put the swollen waste polyurethane sample into a microwave oven, and heat it from room temperature to 200°C under nitrogen atmosphere , keep the temperature for 0.1h, heat the separated solvent to condense and recycle it, then raise the temperature to 550°C, keep the temperature for 0.1h, and finally raise the temperature to 1200°C, keep the temperature for 0.1h, to obtain the carbon nanotube material.

Embodiment 3

[0019] Put 1g of waste polyurethane sample into 15mL ferric chloride saturated solution dissolved in acetic acid, and soak at 200°C for 0.1h; put the swollen waste polyurethane sample into a muffle furnace, heat from room temperature to 100°C, and keep the temperature constant for 5h. The solvent separated by heating was condensed and recovered for reuse, then the temperature was raised to 300°C and kept at a constant temperature for 5 hours, and finally the temperature was raised to 550°C and kept at a constant temperature for 5 hours to obtain a magnetic activated carbon material.

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Abstract

The invention discloses a method for preparing a carbon material from a waste high polymer material, which comprises the following steps: putting the waste high polymer material in a solvent dissolved with an activating agent for swelling treatment to obtain a treated sample; and then heating the treated sample to obtain the carbon material, separating the swelling solvent in a low-temperature section of heating treatment, and recycling after condensing. According to the method provided by the invention, full contact and uniform carbonization and activation reaction of the activating agent and the high polymer material from the molecular level are realized, and the catalytic reaction rate and the yield of a high-value carbon material product are improved to the maximum extent.

Description

technical field [0001] The invention relates to the technical field of solid waste treatment, in particular to a method for preparing carbon materials from waste polymer materials. Background technique [0002] Due to their excellent mechanical properties and processing performance, polymer materials are widely used in various fields such as aerospace, chemical equipment, lightweight engineering, electronic appliances, wind power energy, green buildings, and biomedicine. In recent years, with the rapid development of the polymer industry, the scale of production has continued to expand, and the output of polymer materials has also surged rapidly. However, during the utilization of these polymer materials, a large amount of organic solid waste will inevitably be generated, including leftovers, defective products, and waste polymer material products after reaching the end of their service life. These waste polymer materials often have good chemical stability and are extremely...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/324C01B32/348C01B32/16C01B32/15C01B32/05
CPCC01B32/324C01B32/348C01B32/16C01B32/15C01B32/05Y02P20/133
Inventor 王雄雷刘利娟常涛秦身钧谷占勇任小亮
Owner HEBEI UNIV OF ENG
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