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Preparation method of high-performance bone black

A high-performance bone charcoal technology, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of polluting the environment, wasting resources, etc., and achieve the effect of increasing the specific surface area, strong adsorption and purification ability, and simple process

Inactive Publication Date: 2013-05-29
BEIJING ZHONGSHIHONG INSTALLATION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the animal bones are boiled, they are thrown away as waste. The discarded and rotten animal bones can be seen everywhere, which not only pollutes the environment but also wastes resources.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] First, the degreased and degummed animal bones (such as bovine bones, sheep bones, horse bones, camel bones, etc.) are broken into 1-5mm particles; then the granular animal bones are transported into the carbonization activation furnace at 5°C / min The heating rate is to raise the furnace temperature to 500°C, and then the compound activator made by mixing carbon dioxide and water vapor is input into the carbonization activation furnace at a ratio of 0.4 kg of compound activator / kg of animal bone per hour, and then continue to heat up to 720 After 1.5°C, keep the constant temperature for 1.5 hours to facilitate the discharge of volatile soot gas. The input of composite activator is beneficial to accelerate the formation of carbon chemical components and increase the specific surface area of ​​bone char. The constant temperature is conducive to the release of volatile soot gas during carbonization and activation. Discharge; after the constant temperature is over, continue ...

Embodiment 2

[0027] First, the degreased and degummed animal bones (such as bovine bones, sheep bones, horse bones, camel bones, etc.) are broken into 1-5mm particles; then the granular animal bones are transported into the carbonization activation furnace at 5°C / min The heating rate is to raise the furnace temperature to 520°C, and then the compound activator made by mixing carbon dioxide and water vapor is input into the carbonization activation furnace at the ratio of 1 kg of compound activator / kg of animal bone per hour, and then continue to heat up to 680°C After ℃, keep the constant temperature for 2 hours to facilitate the discharge of volatile fume gas. The input of composite activator is beneficial to accelerate the formation of carbon chemical components and increase the specific surface area of ​​bone char. The constant temperature is conducive to the release of volatile fume gas during carbonization and activation. Discharge; after the constant temperature is over, continue to m...

Embodiment 3

[0029] First, the degreased and degummed animal bones (such as bovine bones, sheep bones, horse bones, camel bones, etc.) are broken into 1-5mm particles; The heating rate is to raise the temperature of the furnace to 550 °C, and then the composite activator made by mixing carbon dioxide and water vapor is input into the carbonization activation furnace at a ratio of 0.6 kg of composite activator / kg of animal bone per hour, and then continue to heat up to 650 °C After ℃, keep the constant temperature for 3 hours to facilitate the discharge of volatile fume gas. The input of composite activator is beneficial to accelerate the formation of carbon chemical components and increase the specific surface area of ​​bone char. The constant temperature is conducive to the release of volatile fume gas during carbonization and activation. Discharge; after the constant temperature is over, continue to mix the composite activator made of carbon dioxide and water vapor into the carbonization ...

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Abstract

The invention discloses a preparation method of high-performance bone black. The preparation method comprises the following steps of: firstly, crushing animal bone which is subjected to de-fatting and degumming into grains of 1-5mm; secondly, feeding the granular animal bone into a carbonizing and activating furnace, raising the furnace temperature to be at 500-550 DEG C in velocity of 5-10 DEG C / min; subsequently adding a composite activating agent; continuously raising the temperature to be at 650-750 DEG C and keeping the constant temperature for 1-3hours; rapidly cooling the furnace temperature to be at 150-180 DEG C and stopping feeding the composite activating agent, and discharging when the furnace temperature is reduced to be at 100 DEG C; adding the carbonized and activated bone black into an alkali water solution, and introducing steam to boil and wash for 5-10 times; putting the boiled and washed bone black into a carbon dioxide water solution to be washed for 5-10 times so as to adjust the pH value to be at 7.0-8.0; and fishing out the bone black after being washed, drying in air or drying in an oven so as to obtain a finished product, namely, the high-performance bone black. The preparation method has the characteristics of simple process and low cost, and the prepared bone black is strong in adsorption and purification capability.

Description

technical field [0001] The invention relates to the field of preparation of active carbon, in particular to a preparation method of high-performance bone charcoal which fully utilizes animal bones and has low cost and strong adsorption and purification ability. Background technique [0002] Activated carbon has a well-developed pore structure and a huge specific surface area (500-3000㎡ / g), good adsorption performance, strong adsorption capacity for gases, organic or inorganic substances in solution, and colloidal particles, etc., and sufficient chemical stability properties, mechanical strength, acid resistance, alkali resistance, heat resistance, insoluble in water and organic solvents, easy to regenerate after use and other good properties, in the food industry, sugar, medicine, chemical industry, environmental protection, national defense, agriculture, fuel gas storage, It has a wide range of applications in many fields such as gas separation and catalytic reaction. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/10C01B32/336
Inventor 刘明秋邹开良
Owner BEIJING ZHONGSHIHONG INSTALLATION ENG
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