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Charring and poreforming method for preparation of active carbon of red willow

A technology for preparing activated carbon and willow willow, applied in chemical instruments and methods, and other chemical processes, can solve the problems of forest destruction, water and soil loss, etc., and achieve the effects of low energy consumption, low cost, and simple preparation process

Inactive Publication Date: 2007-05-16
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some areas, deforestation is used to make activated carbon, which has caused serious forest damage and soil erosion in the area.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Qiliu root charcoal was activated by catalytic carbonization, and CaCO 3 as a catalyst activator.

[0016] Crush the root of willow bark. The powdered CaCO 3 Mix with pulverized willow root at a mass ratio of 2.0-2.4:1.0, stir and transfer to an oven for drying at 100-130° C. for 8-10 hours. Put the dry material into the carbonization furnace, pass N 2 Heating to 360-390°C and keeping the temperature constant for 1-2 hours to obtain carbonized material. Put the carbonized material into the activation equipment and pass in H 2 O(g) is heated to 410-430°C, and then H 2 O(g) or CO 2 Take it out after cooling at constant temperature for 2 to 4 hours. The product obtained by heating is transferred to 8-10% HCI and soaked for 7-9 hours, filtered, washed, and the activated product is baked at 100-120°C for 8-12 hours, the dried product is ground and sieved to obtain different particle sizes. Qi Liu root charcoal products.

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PUM

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Abstract

The invention relates to an absorber, wherein it uses purpurein to carbonize and make holes, to obtain active carbon. And its production comprises breaking, drying, carbonizing and making holes; it breaks and selects the purpurein; and dries in oven; without air, carbonizes it in 360-390Deg. C; and adds into activator, with N2, heating to 410-430Deg. C, adds H2O(g), to make holes, cooling and taking out. The invention has low cost and wide application.

Description

technical field [0001] The invention relates to an adsorbent, which belongs to the technical field of activated carbon water treatment and waste gas and harmful gas treatment. Background technique [0002] As an excellent adsorbent, activated carbon has a unique pore structure and surface functional groups, and has sufficient chemical stability, mechanical strength, and acid, alkali, and heat resistance. Utilizing the adsorption capacity of activated carbon, it is often used in the liquid phase to adsorb heavy metals, organic pollutants and decolorization. Now it is used more for wastewater treatment and drinking water purification; in addition to gas masks, it is also used in industry to recover organic solvents. , Separation of refined gas, purification of air. [0003] At present, materials with high carbon content such as coal and wood are mainly used as raw materials for the production of activated carbon in China. In some areas, deforestation is used to make activate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20C01B31/08
Inventor 张建曾琴文张成禄冯洋洋靖玉明
Owner SHANDONG UNIV