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Method for preparing activated carbon by utilizing camellia oleifera shells

A technology for preparing activated carbon and camellia husk, which is applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., to achieve the effects of developed pore structure, sufficient raw materials and low price

Inactive Publication Date: 2013-04-03
HUNAN AMAZING GRACE BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, many patents related to the development and utilization of Camellia oleifera husks have been focused on the application of new materials. For example, patent application No. 201210027121.6 relates to a method for preparing a special slow-release fertilizer for Camellia oleifera by using Camellia oleifera husk; patent application No. 201010243982.9 discloses a The preparation method of biosorbent prepared from camellia oleifera husk; the patent application number 201010181026.2 uses camellia oleifera husk to make gasoline vapor recovery granular activated carbon; the patent application number 200810030689.7 discloses the method for preparing liquid bioenergy from camellia oleifera husk, etc., no camellia oleifera Related reports on preparation of activated carbon for water purification by carbonization and activation two-step method after crushed fruit shell

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Select Camellia oleifera husks and place them in a constant temperature electric drying oven to dry the moisture content down to 6%, and further crush the pretreated husks to 60 mesh, and mix the camellia oleifera shell powder and 80% phosphoric acid solution in a weight ratio of 1:2.5 and mix evenly After standing still for 24 hours, the camellia oleifera husk after acid leaching was heated and carbonized in a drying oven at 250°C for 80 minutes; Take it out, add water to wash repeatedly, make the pH value 7 and dry in a 100°C drying oven to make the moisture content of the activated carbon 3%, crush and sieve to obtain the finished product of Camellia oleifera husk activated carbon.

[0015] According to the national standards GB / T 12496.10-1999 and GB / T 12496.8-1999, the camellia oleifera shell activated carbon prepared can reach 1683mg / g iodine adsorption value and 187mg / g methylene blue adsorption value, fully meeting the national standard for first-class activated ...

Embodiment 2

[0017] Select Camellia oleifera husks and place them in a constant-temperature electric drying oven to dry the moisture content down to 5%, and further crush the pretreated husks to 80 meshes, and stir and mix the camellia oleifera shell powder and 60% phosphoric acid solution in a weight ratio of 1:3.5 After standing still for 48 hours, the camellia oleifera husk after acid leaching was heated and carbonized in a 150°C drying oven for 120min; Take it out, add water to wash repeatedly, make the pH value 5, and dry it in a drying oven at 120°C to make the moisture content of the activated carbon 5%, crush and sieve to obtain the finished product of camellia oleifera husk activated carbon.

[0018] According to the national standards GB / T 12496.10-1999 and GB / T 12496.8-1999, the camellia oleifera shell activated carbon has an iodine adsorption value of 1534mg / g and a methylene blue adsorption value of 177mg / g, fully meeting the national standard for first-class activated carbon...

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PUM

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Abstract

The invention discloses a method for preparing activated carbon by utilizing camellia oleifera shells. The method comprises the following steps: screening the camellia oleifera shells to remove impurities; mixing and soaking the shell particles and a certain proportion of activated agent; then firstly carbonizing, activating through secondary heating; and sequentially scouring, washing, drying and pelletizing the activated materials to obtain activated carbon. The activated carbon is prepared by the camellia oleifera shells which are obtained from leftovers in processing of camellia oleifera, thus source is sufficient; and the activated carbon is prepared by taking the camellia oleifera shells as raw materials and combining physical and chemical methods, is simple in process, good in stability, less in pollution, easy to regenerate, low in production cost, large in specific surface area and good in adsorptive property.

Description

technical field [0001] The invention relates to a method for preparing activated carbon by using camellia oleifera husk, and belongs to the technical field of activated carbon preparation. Background technique [0002] Activated carbon is a carbonaceous adsorption material with developed pore structure and large specific surface area. It has unique physical and chemical properties, such as strong adsorption capacity, high mechanical strength, good chemical stability, and easy regeneration. Therefore, it is used as a high-quality Adsorbents and catalyst supports are widely used in the fields of industry, agriculture, national defense, transportation, medicine and health, environmental protection and energy. The raw materials for traditional activated carbon preparation are mainly wood and coal. Due to the limited and decreasing domestic forest resources and the high price of coal, it is an urgent problem to be solved in the field of activated carbon preparation to seek cheap...

Claims

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Application Information

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IPC IPC(8): C01B31/08C01B32/324
Inventor 不公告发明人
Owner HUNAN AMAZING GRACE BIOTECH
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