Method for preparing torreya grandis activated carbon

A technology of activated carbon and torreya, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of low adsorption performance of iodine and methylene blue, and achieve the effect of improving adsorption performance and maintaining internal porosity

Active Publication Date: 2018-06-01
河南嵩山科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem mainly solved by the present invention is: Aiming at the problem that traditional Torreya activated carbon has low adsorption performance to iodine and methylene blue, a preparation method of Torreya activated carbon is provided

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  • Method for preparing torreya grandis activated carbon

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example 1

[0020] Put the torreya husk in an oven and dry to constant weight at a temperature of 110°C to obtain dried torreya husks, and put the dried torreya husks into a pulverizer. After crushing, pass a 120-mesh sieve to obtain torreya husks. Pour the obtained torreya husk powder and enzyme solution into a beaker, and move the beaker into a digital speed-measuring constant-temperature magnetic stirrer at a temperature of 40°C and a rotational speed of 500r / min. After 4 hours of constant temperature stirring, , Warm up to 95℃, keep the enzyme inactivated for 20min, filter to obtain filter cake, and wash the filter cake with deionized water for 5 times, then transfer the washed filter cake to the oven, and dry to constant weight at 110℃ , Get the enzymatic hydrolysate; mix the enzymatic hydrolysate with 10% sodium fluoride solution at a mass ratio of 1:15, immerse it in an ultrasonic frequency of 55kHz for 60 minutes, and filter to obtain a filter residue. The filter residue is dried a...

example 2

[0022] Put the torreya husk in an oven and dry to constant weight at a temperature of 110°C to obtain dried torreya husks, and put the dried torreya husks into a pulverizer. After crushing, pass a 120-mesh sieve to obtain torreya husks. Pour the obtained torreya husk powder and enzyme solution into a beaker, and move the beaker into a digital speed-measuring constant-temperature magnetic stirrer at a temperature of 40°C and a rotational speed of 500r / min. After 4 hours of constant temperature stirring, , Warm up to 95℃, keep the enzyme inactivated for 20min, filter to obtain filter cake, and wash the filter cake with deionized water for 5 times, then transfer the washed filter cake to the oven, and dry to constant weight at 110℃ , Get the enzymatic hydrolysate; take 100 parts of isocyanate, 30 parts of tetraethyl orthosilicate, 5 parts of nano iron powder, 10 parts of expanded perlite with a mesh size of 500 meshes in order in parts by weight. After mixing, the ultrasonic freque...

example 3

[0024] Put the torreya husk in an oven and dry to constant weight at a temperature of 110°C to obtain dried torreya husks, and put the dried torreya husks into a pulverizer. After crushing, pass a 120-mesh sieve to obtain torreya husks. Pour the obtained torreya husk powder and enzyme solution into a beaker, and move the beaker into a digital speed-measuring constant-temperature magnetic stirrer at a temperature of 40°C and a rotational speed of 500r / min. After 4 hours of constant temperature stirring, , Warm up to 95℃, keep the enzyme inactivated for 20min, filter to obtain filter cake, and wash the filter cake with deionized water for 5 times, then transfer the washed filter cake to the oven, and dry to constant weight at 110℃ , Get the enzymatic hydrolysate; mix the enzymatic hydrolysate with 10% sodium fluoride solution at a mass ratio of 1:15, immerse it in an ultrasonic frequency of 55kHz for 60 minutes, and filter to obtain a filter residue. The filter residue is dried a...

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Abstract

The invention discloses a method for preparing torreya grandis activated carbon and belongs to the technical field of adsorption materials. The method comprises the following steps: by taking torreyagrandis fruit shells as a raw material, crushing, screening, performing enzymolysis so as to obtain an enzymolysis material, further performing ultrasonic soaking on the enzymolysis material with a sodium fluoride solution, drying till a specific water content so as to obtain treated torreya grandis shell powder, mixing a dispersion consisting of isocyanate, nano iron powder and a phenolic resin with the pretreated torreya grandis shell powder, performing an ultrasonic reaction so as to obtain a reaction liquid, further heating and curing the reaction liquid with the phenolic resin, further performing carbonization and a high-temperature reaction so as to obtain a porous material, finally soaking the porous material into an acid, and performing high-temperature activation, thereby obtaining torreya grandis activated carbon. The iodine adsorption value and the methylene blue adsorption value of the torreya grandis activated carbon prepared by using the method are effectively improved, and the torreya grandis activated carbon is good in adsorption property.

Description

Technical field [0001] The invention discloses a preparation method of activated carbon from Torreya grandis, belonging to the technical field of adsorption materials. Background technique [0002] Activated carbon is a product obtained by carbonization activation using charcoal, wood chips, coconut shell, walnut shell, cotton shell, various fruit cores, pulp waste liquid and other agricultural and forestry by-products, coal and heavy petroleum as raw materials, and has a unique pore structure And surface functional groups, have sufficient chemical stability, mechanical strength, acid resistance, alkali resistance, heat resistance and other properties. Researchers at home and abroad have used walnut shells, peanut shells, bagasse, corn stalks, tobacco stems, coconut shells and other agricultural wastes with high carbon content as raw materials for the production of activated carbon, and there are many reports on the preparation of activated carbon and the study of its characteris...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/324C01B32/342
Inventor 孙春辉许蘅张琳
Owner 河南嵩山科技有限公司
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