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Activated carbon prepared from leaf residues of cinnamomum longepaniculatum and preparation method of activated carbon

A technology of camphor leaf residue and activated carbon, applied in chemical instruments and methods, carbon compounds, inorganic chemistry and other directions, can solve the problems of environmental pollution, waste of resources, decay and the like, and achieve the effects of simple preparation method and short process flow

Inactive Publication Date: 2017-05-24
SICHUAN ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The camphor leaf residue is usually directly incinerated or piled up to rot on the spot, which not only pollutes the environment but also wastes resources

Method used

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  • Activated carbon prepared from leaf residues of cinnamomum longepaniculatum and preparation method of activated carbon
  • Activated carbon prepared from leaf residues of cinnamomum longepaniculatum and preparation method of activated carbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1) crushing: crushing camphor leaf slag into uniform subsections;

[0017] 2) Impregnation: Mix the camphor leaf residue pulverized in step 1) with phosphoric acid with a concentration of 80% in a weight ratio of 1:2, and impregnate for 1.5 hours to obtain a mixture 1;

[0018] 3) Preactivation: Preactivate the mixture 1 obtained in step 2) at 180° C. for 45 minutes to obtain mixture 2;

[0019] 4) Activation: put the mixture 2 obtained in step 3) into the activation furnace, -1 Raise the temperature of the activation furnace to 420° C. to activate mixture 2 at 420° C. for 45 min to obtain mixture 3; and

[0020] 5) Washing and drying: the mixture 3 obtained in step 4) is cooled to room temperature, and the cooled mixture 3 is washed with water to neutrality, and then the neutral mixture 3 is dried to obtain a black solid that is made of camphor leaves Activated carbon prepared from slag.

Embodiment 2

[0022] 1) crushing: crushing camphor leaf slag into uniform subsections;

[0023] 2) Impregnation: Mix the camphor leaf residue pulverized in step 1) with phosphoric acid with a concentration of 80% in a weight ratio of 1:2.2, and impregnate for 1.2 hours to obtain a mixture 1;

[0024] 3) Preactivation: Preactivate the mixture 1 obtained in step 2) at 190° C. for 40 minutes to obtain mixture 2;

[0025] 4) Activation: put the mixture 2 obtained in step 3) into the activation furnace, -1 The activation furnace was heated to 410° C. to activate mixture 2 at 410° C. for 50 min to obtain mixture 3; and

[0026] 5) Washing and drying: the mixture 3 obtained in step 4) is cooled to room temperature, and the cooled mixture 3 is washed with water to neutrality, and then the neutral mixture 3 is dried to obtain a black solid that is made of camphor leaves Activated carbon prepared from slag.

Embodiment 3

[0028] 1) crushing: crushing camphor leaf slag into uniform subsections;

[0029] 2) Impregnation: Mix the camphor leaf residue pulverized in step 1) with phosphoric acid with a concentration of 80% in a weight ratio of 1:2.5, and impregnate for 1 hour to obtain a mixture 1;

[0030] 3) Preactivation: Preactivate the mixture 1 obtained in step 2) for 30 minutes at 200° C. to obtain mixture 2;

[0031] 4) Activation: put the mixture 2 obtained in step 3) into the activation furnace, -1 Raising the temperature of the activation furnace to 400° C. to activate mixture 2 at 400° C. for 55 min to obtain mixture 3; and

[0032] 5) Washing and drying: the mixture 3 obtained in step 4) is cooled to room temperature, and the cooled mixture 3 is washed with water to neutrality, and then the neutral mixture 3 is dried to obtain a black solid that is made of camphor leaves Activated carbon prepared from slag.

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Abstract

The invention discloses activated carbon prepared from leaf residues of cinnamomum longepaniculatum and a preparation method of the activated carbon. The preparation method comprises steps as follows: 1) crushing; crushing the leaf residues of cinnamomum longepaniculatum into even sections; 2) impregnation: mixing the crushed leaf residues of cinnamomum longepaniculatum with phosphoric acid, and performing impregnation for a preset time 1 to obtain a mixture 1; 3) pre-activation: pre-activating the mixture 1 at a preset temperature 1 for a preset time 2 to obtain a mixture 2; 4) activation: placing the mixture 2 into an activating furnace, heating the activating furnace to a preset temperature 2 at a preset rate, and activating the mixture 2 at a preset temperature 2 for a preset time 3 to obtain a mixture 3; 5) washing and drying: cooling the mixture 3 to the room temperature, washing the cooled mixture 3 to be neutral with water, and then drying the neutral mixture 3 to obtain the activated carbon prepared from the leaf residues of cinnamomum longepaniculatum.

Description

technical field [0001] The invention relates to an activated carbon prepared from camphor leaf residue and a preparation method thereof. Background technique [0002] The camphor leaf residue is usually directly incinerated or piled up to rot on the spot, which not only pollutes the environment but also wastes resources. Camphor leaf residue is rich in carbon sources, and its carbon content is about 48%, so camphor leaf residue is a very suitable raw material for preparing activated carbon. [0003] In recent years, with the continuous deepening of research on activated carbon, the application range of activated carbon has gradually developed to environmental protection fields such as gas purification and wastewater treatment, which has greatly increased the demand for activated carbon. [0004] Therefore, the use of camphor leaf residue to prepare activated carbon not only helps to reduce the pollution of the waste camphor leaf residue to the environment, but also can prod...

Claims

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Application Information

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IPC IPC(8): C01B32/324C01B32/342
CPCC01P2006/12
Inventor 杨学兵莫开林徐明费世民吴斌付卓锐杨凌
Owner SICHUAN ACAD OF FORESTRY
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