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Preparation method of high-penetration microporous granular active carbon

A granular activated carbon and microporous technology, which is applied in the field of waste recycling or reprocessing, can solve the problems affecting the improvement of the specific surface area of ​​activated carbon, the tubular structure is easy to burst into pieces, and the activated micropores on the outer wall have poor penetrability, so as to enhance the adsorption capacity. , Improve the added value of product utilization, and reduce the effect of processing pressure

Inactive Publication Date: 2016-10-12
SHAOXING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Regarding the utilization of waste wool fiber resources, there are mainly two utilization directions: one is to adopt the method of opening, cleaning, screening, direct utilization or textile processing to form usable textiles, such as Chinese patent CN102167418B discloses the utilization of The adsorption reactor with waste wool fiber as filler removes ethinyl estradiol pollutants in sewage; the second is cleaning and dissolving to form keratin liquid purification and utilization or regeneration spinning and textile processing to form textiles or crush and carbonize to make adsorption substances The chemical and physical method, such as Chinese patent CN 102161485 B, uses waste wool to prepare tubular activated carbon, but the disadvantages of this patent are that the tubular structure is easy to burst into pieces, and the penetrability of activated micropores on the outer wall is poor, resulting in a small specific surface area of ​​activated carbon. The adsorption capacity is poor; in addition, the patent only uses water to wash the waste wool, which cannot remove the fat and impurities in the wool, which is not conducive to the generation of activated micropores, thus affecting the improvement of the specific surface area of ​​activated carbon
Cashmere needle hair is produced in the depilation process of goats. It has a wide range of diameter distribution and uneven thickness distribution. The thicker fibers can reach 170 μm, and the fiber cross-section has both solid and porous structures. It is a typical waste wool fiber. Representative, the application of this waste material is rarely reported

Method used

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  • Preparation method of high-penetration microporous granular active carbon
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  • Preparation method of high-penetration microporous granular active carbon

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The processing technology of this embodiment can refer to figure 1 As shown, the waste cashmere needle wool fiber is treated with sulfuric acid in 3.0% sulfuric acid solution, baked and carbonized at 110°C after acid rolling, and then the plant weeds are removed by a charcoal crusher, then neutralized, and Teric N10 non-ionic washing is added (concentration 1.5%, bath ratio 1:35, temperature 50°C, washing times twice, the time distribution of the two washes is 10min, 5min) to remove fat and sweat from cashmere needle hair fibers, and finally wash with hot water at 40°C and dry , to obtain net cashmere needle wool fiber, compared figure 2 with image 3 It can be seen that the fiber wool color after purification treatment is bright and tidy, and the gloss is high; then, the clean cashmere needle hair fiber is cut into 15mm short hair with a rolling knife, and placed in a quartz tube muffle furnace under the protection of nitrogen. After 30 minutes of nitrogen gas, the ...

Embodiment 2

[0031] The processing technology of this embodiment can refer to figure 1As shown, put the waste cashmere needle wool fibers in 3.5% sulfuric acid solution for sulfuric acid treatment, after acid rolling, bake and carbonize at 105°C, then use a charcoal crusher to remove vegetable weeds, then neutralize, add Lissapol TN 450 non-ionic Detergent (concentration 1%, bath ratio 1:50, temperature 55°C, washing times twice, the time distribution of the two washes is 10min, 5min) to remove grease and sweat from cashmere needle hair fibers, and finally wash with hot water at 40°C and dry dry, to obtain net cashmere needle wool fibers, vs. figure 2 with image 3 It can be seen that the wool color of the purified fiber is bright and tidy, and the gloss is high; then, the clean cashmere needle hair fiber is cut into 10mm short hair with a rolling knife, and placed in a quartz tube muffle furnace under the protection of nitrogen. After nitrogen gas for 30 minutes, the temperature was ra...

Embodiment 3

[0034] The processing technology of this embodiment can refer to figure 1 As shown, put the waste cashmere needle wool fibers in 3.5% sulfuric acid solution for sulfuric acid treatment, after acid rolling, bake and carbonize at 105°C, then use a charcoal crusher to remove vegetable weeds, then neutralize, add Lissapol TN 450 non-ionic Detergent (concentration 1%, bath ratio 1:50, temperature 55°C, washing times twice, the time distribution of the two washes is 10min, 5min) to remove grease and sweat from cashmere needle hair fibers, and finally wash with hot water at 40°C and dry dry, to obtain waste net wool fiber, contrast figure 2 with image 3 It can be seen that the wool color of the purified fiber is bright and tidy, and the gloss is high; then, the clean cashmere needle hair fiber is cut into 5 mm short hairs with a rolling knife, and placed in a quartz tube muffle furnace under the protection of nitrogen. After 30 minutes of nitrogen gas, the temperature was raised ...

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Abstract

The invention relates to a preparation method of high-penetration microporous granular active carbon, belonging to the technical field of waste recycling or reprocessing. The preparation method comprises the following steps: treating waste wool fiber with a sulfuric acid solution; performing acid rolling, baking carbonization and impurity removal; neutralizing and adding a nonionic detergent to remove fat; finally, cleaning and drying to obtain clean wool fiber; and pre-carbonizing and activating the clean wool fiber to obtain active carbon fiber. The preparation method provided by the invention is applied to the recycling of nonwoven wool fiber or waste wool fiber to prepare active carbon. With a remarkably large specific surface area, the active carbon has the advantages of relatively high compatibility, good adsorption capacity, uniform void volume distribution and the like in the using process.

Description

technical field [0001] The invention relates to a preparation method of highly penetrating microporous granular activated carbon, which belongs to the technical field of waste recycling or reprocessing. Background technique [0002] The amount of waste fiber resources is huge, and improper disposal will not only cause environmental pollution, but also increase processing costs and waste resources. Using appropriate methods to reprocess waste textile fibers not only meets the requirements of relevant laws and regulations in our country, but also has the rationality of waste utilization and resource recovery. Waste wool fibers include non-spinnable wool fibers (such as pig hair, human hair, chicken hair, wool or rabbit fur scraps, camel hair, alpaca wool, cashmere needle hair, etc.) , back wool, selvage, waste wool yarn scraps, old wool clothing, old sweaters, etc.). According to the latest data released at the 82nd Annual Conference of the International Wool Textile Organiz...

Claims

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Application Information

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IPC IPC(8): C01B31/12
CPCC01P2004/03C01P2006/12C01P2006/14
Inventor 邹专勇
Owner SHAOXING UNIVERSITY
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