Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of high specific surface area activated carbon for air purification

A high specific surface area, air purification technology, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve the problems of limited adsorption performance, can not meet the needs of adsorption, etc., to improve specific surface area and adsorption performance, good specific surface area effect on adsorption capacity

Active Publication Date: 2019-03-29
苏州克拉克森活性炭有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used high specific surface area activated carbon generally has a specific surface area of ​​3000m 2 / g, and the adsorption performance is also limited
Especially for air purification, the current specific surface area can no longer meet the needs of further adsorption

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method of high specific surface area activated carbon for air purification, comprising the steps of:

[0019] Step 1, crushing the crop stalks, the particle size after crushing is 600-1000 microns, then immersing in an aqueous ethanol solution with a volume concentration of 70% to boil, keeping for 20 minutes, filtering and drying at a temperature of 100°C to obtain material one;

[0020] Step 2, get 50 parts of material in parts by weight, join with 3 parts of sodium formaldehyde sulfoxylate, 2 parts of acrylic acid, 1 part of glacial acetic acid, 1 part of pentamethyldiethylenetriamine and 3 parts of glycerol 200 parts of water, stirred and mixed evenly to obtain a mixture;

[0021] Step 3, heating the mixture to 80° C. under the protection of an inert gas, and keeping it for 20 minutes to obtain a reaction solution;

[0022] Step 4: Add 1 part of trimethylolpropane in parts by weight to the reaction solution, keep at 50°C for 10 minutes, filter and th...

Embodiment 2

[0024] A preparation method of high specific surface area activated carbon for air purification, comprising the steps of:

[0025] Step 1, crushing the crop stalks, the particle size after crushing is 600-1000 microns, then immersing in an aqueous ethanol solution with a volume concentration of 70% to boil, keeping for 25 minutes, filtering and drying at a temperature of 105°C to obtain material one;

[0026] Step 2, get 57 parts of material in parts by weight, join with 4 parts of sodium formaldehyde sulfoxylate, 3 parts of acrylic acid, 2 parts of glacial acetic acid, 2 parts of pentamethyldiethylenetriamine and 5 parts of glycerol 230 parts of water, stirred and mixed evenly to obtain a mixture;

[0027] Step 3, heating the mixture to 82°C at a heating rate of 6°C / min under the condition of nitrogen protection, and keeping it for 25 minutes to obtain a reaction solution;

[0028] Step 4: Add 2 parts by weight of trimethylolpropane to the reaction liquid, keep at 55°C for ...

Embodiment 3

[0030] A preparation method of high specific surface area activated carbon for air purification, comprising the steps of:

[0031] Step 1, crushing the crop stalks, the particle size after crushing is 600-1000 microns, then immersing in an aqueous ethanol solution with a volume concentration of 70% to boil, keeping for 27 minutes, filtering and drying at a temperature of 110°C to obtain material one;

[0032] Step 2, get 60 parts of material one by weight, join with 6 parts of sodium formaldehyde sulfoxylate, 4 parts of acrylic acid, 2 parts of glacial acetic acid, 2 parts of pentamethyldiethylenetriamine and 6 parts of glycerol 280 parts of water, stirred and mixed evenly to obtain a mixture;

[0033] Step 3, heating the mixture to 88°C at a heating rate of 7°C / min under the condition of nitrogen protection, and keeping it for 30 minutes to obtain a reaction solution;

[0034] Step 4: Add 2 parts by weight of trimethylolpropane to the reaction solution, keep at 55°C for 18 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of high specific surface area activated carbon for air purification. The preparation method comprises the following steps: firstly crushing crop straws, then immersing the crop straws in an ethanol aqueous solution to be boiled, and filtering and drying to obtain a material I; adding the material I and sodium formaldehyde sulfoxylate, acrylic acid, glacial acetic acid, pentamethyldiethylenetriamine and glycerine into water and uniformly stirring and mixing the materials to obtain a mixture; then heating the mixture in a condition of inert gas shielding and keeping the temperature to obtain a reaction liquid; and finally, adding trimethylolpropane into the reaction liquid, heating the reaction liquid and keeping the reaction liquid for a certain time, and filtering and carbonizing the reaction liquid to obtain the high specific surface area activated carbon for air purification. The activated carbon prepared by the preparation method disclosed by the invention has good specific surface area and adsorptive property.

Description

technical field [0001] The invention belongs to the field of activated carbon preparation, in particular to a method for preparing activated carbon with high specific surface area for air purification. Background technique [0002] Activated carbon is a kind of porous carbon material made of high-quality coal, wood chips or fruit shells through processing, carbonization, activation and other processes. It has certain mechanical strength, large specific surface area and strong adsorption performance. It can decolorize, deodorize, desulfurize, and debenzene, and can also selectively remove certain chemical impurities and mechanical impurities in the liquid or gas phase. It can also adsorb certain catalysts, greatly speeding up the chemical reaction, and is a good catalyst carrier. Therefore, activated carbon is widely used in national defense, chemical industry, petroleum, textile, food, medicine, atomic energy industry, urban construction, environmental protection and all a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/318
CPCC01P2006/12
Inventor 张瑜
Owner 苏州克拉克森活性炭有限公司