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Method for making activated carbon by using wild peach pit shells

A technology for preparing activated carbon and core shell, which is applied in the field of preparing activated carbon from pecan shell and achieves the effects of firm texture, developed voids and solving the problem of environmental pollution

Inactive Publication Date: 2015-04-08
姚雯楸
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of preparing activated carbon, there is no relevant report on the method of preparing activated carbon from the pecan core shell. It is of great significance to develop the method of preparing activated carbon from the pecan core shell.

Method used

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  • Method for making activated carbon by using wild peach pit shells

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0023] (1) drying the pecan core shell at 120°C for 12 hours to dehydrate;

[0024] (2) The dried raw material is pulverized through a 40-mesh sieve;

[0025] (3) Soak in 60% zinc chloride solution for 24 hours by solid-liquid ratio of 1:2;

[0026] (4) Place the soaked raw materials in a 400W microwave oven, and irradiate them with microwaves for 30 minutes;

[0027] (5) placing the raw materials treated by microwave irradiation in an activation furnace at 600°C for 90 minutes;

[0028] (6) adopting the dilute hydrochloric acid solution that volume ratio is 1:9 boils 30 minutes;

[0029] (7) Rinse the activation material with tap water so that its pH value is 6-7;

[0030] (8) The finished activated carbon can be obtained after the washed raw materials are placed in an oven for drying;

[0031] (9) The iodine adsorption value of the mountain peach core-shell activated carbon in this example is 1068mg / g.

Embodiment example 2

[0033] (1) Dry the pecan core shell at 120° C. for 12 hours to dehydrate.

[0034] (2) Crushing the dried raw material through a 40-mesh sieve.

[0035] (3) Soak in 60% zinc chloride solution for 24 hours according to the solid-to-liquid ratio of 1:2.

[0036] (4) Place the soaked raw materials in a 500W microwave oven and irradiate them with microwaves for 20 minutes.

[0037] (5) Place the raw materials treated by microwave irradiation in an activation furnace at 700° C. for 60 minutes for activation.

[0038] (6) Use dilute hydrochloric acid solution with a volume ratio of 1:9 to boil for 30 minutes.

[0039] (7) Rinse the activated material with tap water so that its pH value is close to 6-7.

[0040] (8) The finished activated carbon can be obtained after the washed raw materials are dried in an oven.

[0041] (9) The iodine adsorption value of the mountain peach core-shell activated carbon in this example is 1132mg / g.

Embodiment example 3

[0043] (1) Dry the pecan core shell at 120° C. for 12 hours to dehydrate.

[0044] (2) Crushing the dried raw material through a 40-mesh sieve.

[0045] (3) Soak in 60% zinc chloride solution for 24 hours according to the solid-to-liquid ratio of 1:2.

[0046] (4) Place the soaked raw materials in a 700W microwave oven and irradiate them with microwaves for 15 minutes.

[0047] (5) Place the raw materials treated by microwave irradiation in an activation furnace at 400° C. for 120 minutes for activation.

[0048] (6) Use dilute hydrochloric acid solution with a volume ratio of 1:9 to boil for 30 minutes.

[0049] (7) Rinse the activated material with tap water so that its pH value is close to 6-7.

[0050] (8) The finished activated carbon can be obtained after the washed raw materials are dried in an oven.

[0051] (9) The iodine adsorption value of the mountain peach core-shell activated carbon in this example is 1351mg / g.

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Abstract

The invention discloses a method for making activated carbon by using wild peach pit shells. The method comprises the steps that the wild peach pit shells are dried for 12 hours at the temperature of 120DEG C to be dewatered, and are smashed to penetrate through a 40-mesh screen, the smashed wild peach pit shells are soaked in a 60% zinc chloride solution for 24 hours under the condition that the ratio of the wild peach pit shells to the zinc chloride solution is 1:2, then the soaked wild peach pit shells are transferred to a microwave oven with the microwave power ranging from 400W to 700W, and are processed for 10-30 minutes through irradiation, the processed wild peach pit shells are activated for 30-120 minutes at the temperature ranging from 400DEG C to 700DEG C, and then are processed through acid picking in a diluted hydrochloric acid solution which has the volume ratio of being 1:9 and is boiled for 30 minutes, cooling is conducted, the cooled wild peach pit shells are washed until the PH value ranges from six to seven, and are dried, and therefore the wild peach pit shell activated carbon can be obtained. The wild peach pit shell activated carbon made through the method has excellent adsorption performance.

Description

technical field [0001] The invention relates to the technical field of preparing activated carbon. Specifically, the present invention relates to the technical field of a method for preparing activated carbon from the pecan core shell. Background technique [0002] Activated carbon is a porous structure composed of macropores, mesopores and micropores, and has the adsorption characteristics of a large specific surface area. Widely used in petrochemical, electric power, chemical, food and other fields. With the development of science, the use of activated carbon is becoming more and more extensive. With the country's emphasis on the ecological environment, activated carbon is also playing an increasingly important role. [0003] Shantaohe, also known as Shantaohu, Shantaoseed, is a small deciduous tree widely distributed in Shandong, Shanxi, Henan, Hebei, Shaanxi and other places. The peach kernel of the hickory pit is used to treat bruises, blood stasis, swelling and pain...

Claims

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Application Information

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IPC IPC(8): C01B31/12
Inventor 姚雯楸
Owner 姚雯楸
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