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Method for preparing activated carbon from pinecone

A technology for preparing activated carbon and pine cones, which is applied in recycling technology, solid waste removal, electronic waste recycling, etc., to achieve the effects of promoting development, cheap and easy raw materials, and reducing production costs

Inactive Publication Date: 2011-11-23
南通保来利轴承有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no report on the use of pine cones to prepare activated carbon at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0014] The preparation method of the gac of embodiment has the following steps:

[0015] ①The naturally air-dried Korean pine cones from Northeast China were dried at 108°C for 24 hours.

[0016] ② crushing the dried pine cones in step ① to a particle size of about 2 mm to obtain pine cone particles.

[0017] ③Take 8g of pine cone granules from step ② and mix them with 24g of KOH granules, add 50ml of water and stir evenly, and soak for 24 hours to get the mixed material.

[0018] ④ Put the mixed material in step ③ into a microwave oven for carbonization and activation for 9 minutes under the microwave irradiation power of 300W to obtain the activated mixed material.

[0019] ⑤ Cook the activated mixed material in step ④ with hydrochloric acid with a volume ratio of 1:10 (referring to the volume ratio of 36wt% concentrated hydrochloric acid to the volume of water) at 90°C for 30 minutes, then rinse with distilled water to pH 7, then dried at 120°C, and finally ground to 200 ...

Embodiment 2）

[0021] The preparation method of the gac of embodiment has the following steps:

[0022] ①The naturally air-dried Korean pine cones from Northeast China were dried at 108°C for 24 hours.

[0023] ② crushing the dried pine cones in step ① to a particle size of about 2 mm to obtain pine cone particles.

[0024] ③Take 8g of pine cone granules from step ② and mix them with 24g of KOH granules, add 50ml of water and stir evenly, and soak for 24 hours to get the mixed material.

[0025] ④ Put the mixed material in step ③ into a microwave oven for carbonization and activation for 9 minutes under the microwave irradiation power of 560W to obtain the activated mixed material.

[0026] ⑤ Cook the activated mixed material in step ④ with hydrochloric acid with a volume ratio of 1:10 (referring to the volume ratio of 36wt% concentrated hydrochloric acid to the volume of water) at 90°C for 30 minutes, then rinse with distilled water to pH 7, then dried at 120°C, and finally ground to 200 ...

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Abstract

The invention discloses a method for preparing activated carbon from pinecone, which comprises the following steps of: (1) drying the pinecone at the temperature of between 100 and 120 DEG C for 20 to 30 hours; (2) grinding the dried pinecone in the step (1) into pinecone particles with the size of 1 to 3mm; (3) mixing the pinecone particles in the step (2) and potassium hydroxide in a weight ratio of 1:1-1:4, adding water and soaking for 20 to 30 hours to obtain a mixed material; (4) putting the mixed material in the step (3) into a microwave oven, carbonizing and activating to obtain an activated mixed material, wherein microwave irradiation power is 200 to 700W, and microwave irradiation time is 5 to 10 minutes; and (5) washing the activated mixed material in the step (4) by using acidand water respectively, drying and grinding to obtain the activated carbon. By the method, the raw material is cheap and readily available, the production cost of the activated carbon is reduced, waste is recycled, resources are circulated, and the development of low-carbon economy is promoted.

Description

technical field [0001] The invention relates to a method for preparing activated carbon, in particular to a method for preparing activated carbon with a pine cone. Background technique [0002] Activated carbon is an extremely important adsorbent, and its excellent properties make it widely used in food processing, pharmaceuticals, chemicals, petroleum refining, bioengineering, energy and environmental protection and other fields. The application of activated carbon in the field of environmental protection is mainly used for the purification of drinking water, the treatment of waste water and the adsorption of toxic and harmful gases. In recent years, environmental pollution has become increasingly serious, and countries all over the world have attached great importance to the deep purification of drinking water, wastewater treatment, and air purification. In my country, with the improvement of national water quality standards, the Yangtze River Delta, Pearl River Delta and...

Claims

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Application Information

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IPC IPC(8): C01B31/12B09B3/00
CPCY02W30/82
Inventor 蒋莉马飞顾爱军李婷
Owner 南通保来利轴承有限公司
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