CN102897760A - Method for preparing activated carbon by using eupatorium adenophorum - Google Patents
Method for preparing activated carbon by using eupatorium adenophorum Download PDFInfo
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- CN102897760A CN102897760A CN2011102155022A CN201110215502A CN102897760A CN 102897760 A CN102897760 A CN 102897760A CN 2011102155022 A CN2011102155022 A CN 2011102155022A CN 201110215502 A CN201110215502 A CN 201110215502A CN 102897760 A CN102897760 A CN 102897760A
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- hemp eupatorium
- activated carbon
- gac
- eupatorium
- eupatorium adenophorum
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Abstract
The invention belongs to the field of activated carbon preparation technology, relates to a method for preparing activated carbon by using eupatorium adenophorum. The method comprises the steps of crushing, drying, immersing, carbonizing, washing and stoving. The activated carbon prepared by using eupatorium adenophorum has wide aperture distribution; the specific surface area is higher than 1327.26 m<2>/g; average aperture is 3.7 nm; and total pore volume is higher than 1.05 mL.g<-1>. The activated carbon adsorbent prepared by using eupatorium adenophorum has very good adsorptive property, is simple in preparation process, can be applied in the fields of environmental protection, foodstuff, chemical industry, medicine and the like, solves the environmental problem, realizes comprehensive utilization of eupatorium adenophorum, prepares high performance activated carbon, and has important social benefits and economic benefits.
Description
Technical field
The invention belongs to a kind of preparing technical field of gac, relate in particular to a kind of method of utilizing Hemp Eupatorium to prepare gac for raw material
Background technology
Gac claims again active black, black powder shape or granular decolorizing carbon, as a kind of widely used sorbing material, have abundant internal voids and huge specific surface area with it, be used widely at numerous areas such as environmental protection, chemical and medicine industry and food.Hemp Eupatorium is a kind of widely distributed forestry malignant weed, belongs to the undershrub class, imports China from the 1950's into from southwestern border one band, overflows rapidly on cloud, expensive, river and other places at present, has classified the first batch of Invasive Alien Species of China as.By analysis as can be known, the chemical constitution in the short texture of Hemp Eupatorium, its composition and the wood materials such as wood chip, shell and timber is approximate, and its ash content of while is lower and content of lignin is high, adopts as can be known Hemp Eupatorium to possess the prerequisite of preparation high performance active carbon.
The present invention can make the manufacturing cost of gac significantly reduce and realize the comprehensive utilization of Hemp Eupatorium, so the present invention has very important practical value take the Hemp Eupatorium cane of cheapness as main raw material prepares gac.
Summary of the invention
The object of the present invention is to provide a kind of method of utilizing Hemp Eupatorium to prepare gac, for realizing purpose of the present invention, concrete operation steps is as follows:
1) drying stage: Hemp Eupatorium is dry, pulverize, be screened to 20～50 orders;
2) pretreatment stage: the Hemp Eupatorium after the drying and crushing is soaked with zinc chloride;
3) carbon activation stage: soaked Hemp Eupatorium is put into microwave Muffle furnace carbonization, activation, and temperature is 550 ℃～650 ℃, 10～20 minutes time, takes out after being cooled to normal temperature;
4) preparation post-processing stages: carbonization, activation Hemp Eupatorium are well put into hydrochloric acid soln and boil, then wash to pH be 6.5～7.0,100 ℃～120 ℃ oven dry, make its quality index meet the requirement of gac at last, get final product to get Powdered Hemp Eupatorium gac;
Described step 1) drying in be in baking oven in 100 ℃～120 ℃ the oven dry or naturally dry, the time is 10～16 hours.
Described step 2) the chlorination zinc concentration is 30%～50% (mass percent) in, and soak time is 12～20 hours.
Described step 4) in, concentration of hydrochloric acid solution is 0.1mol/L-0.2mol/L, and boiling time is 20-30min, again with deionized water wash to pH6.5～7.0.
Hemp Eupatorium is as a kind of wild alien invasion plants, has in a large number aboundresources on cloud, expensive, river and other places.If therefore can utilize this kind of plant as the gac raw material, it is changed harmful to treasure, will have great importance.This law adopts the carbonization of microwave Muffle furnace heating method, has quick heating, and air-isolation is effective, and is easy and simple to handle again.Adopt hydrochloric acid to boil again washing treatment stage of Carbon Materials after this law carbonization, it is thorough to have in the Carbon Materials of removal a remaining zine ion, and fireballing advantage.
The gac of the present invention preparation has the advantages such as complex pore structure and specific surface area are larger, and the gac of preparation is the trace phenol in the adsorbable water not only, and can be used for that other heavy metal ions in wastewater is processed and decolouring.
It is that main raw material prepares gac that the present invention adopts Hemp Eupatorium, not only solves this weeds to the harm that local agroforestry cause, and also can be converted into high value added product by science and technology, is used for the processing of relevant waste water, is significant.
Embodiment
The present invention is further described below in conjunction with embodiment:
Embodiment 1
With Hemp Eupatorium at baking oven in 100 ℃ of oven dry or naturally dry, then pulverize, make it pass through 20 purpose sieves, be 40% liquor zinci chloridi immersion again with massfraction, soak time is 18 hours; Then soaked Hemp Eupatorium is put into microwave Muffle furnace, 550 ℃ of carbonizations, activation 20 minutes, take out after being cooled to normal temperature, put into the hydrochloric acid of 0.1mol/L, boil 30min, with deionized water wash to pH be 6.5,100 ℃ of oven dry, get final product to get Powdered Hemp Eupatorium gac again.
Embodiment 2
With Hemp Eupatorium at baking oven in 105 ℃ of oven dry or naturally dry, then pulverize, make it pass through 30 purpose sieves, be 30% liquor zinci chloridi immersion again with massfraction, soak time is 20 hours; Then soaked Hemp Eupatorium is put into microwave Muffle furnace, 650 ℃ of carbonizations, activation 10 minutes, take out after being cooled to normal temperature, put into the hydrochloric acid of 0.2mol/L, boil 30min, with deionized water wash to pH be 7.0,105 ℃ of oven dry, get final product to get Powdered Hemp Eupatorium gac again.
Embodiment 3
With Hemp Eupatorium at baking oven in 110 ℃ of oven dry or naturally dry, then pulverize, make it pass through 40 purpose sieves, be 40% liquor zinci chloridi immersion again with massfraction, soak time is 18 hours; Then soaked Hemp Eupatorium is put into microwave Muffle furnace, 550 ℃ of carbonizations, activation 15 minutes, take out after being cooled to normal temperature, put into the hydrochloric acid of 0.2mol/L, boil 30min, with deionized water wash to pH be 7.0,110 ℃ of oven dry, get final product to get Powdered Hemp Eupatorium gac again.
Embodiment 4
With Hemp Eupatorium at baking oven in 120 ℃ of oven dry or naturally dry, then pulverize, make it pass through 50 purpose sieves, be 50% liquor zinci chloridi immersion again with massfraction, soak time is 12 hours; Then soaked Hemp Eupatorium is put into microwave Muffle furnace, 600 ℃ of carbonizations, activation 12 minutes, take out after being cooled to normal temperature, put into the hydrochloric acid of 0.2mol/L, boil 25min, with deionized water wash to pH be 7.0,115 ℃ of oven dry, get final product to get Powdered Hemp Eupatorium gac again.
The Hemp Eupatorium that utilizes that the present invention proposes prepares the method for gac, be described by preferred embodiment, person skilled obviously can be within not breaking away from content of the present invention, spirit and scope to equipment as herein described with the preparation method changes or suitably change and combination, realize the technology of the present invention.Special needs to be pointed out is, the replacement that all are similar and change apparent to those skilled in the artly, they are deemed to be included in spirit of the present invention, scope and the content.
Claims (4)
1. method of utilizing Hemp Eupatorium to prepare gac is characterized in that may further comprise the steps:
1) drying stage: Hemp Eupatorium is dry, pulverize, be screened to 20～50 orders; 2) pretreatment stage: the Hemp Eupatorium after the drying and crushing is soaked with zinc chloride;
3) carbon activation stage: soaked Hemp Eupatorium is put into microwave Muffle furnace carbonization, activation, and temperature is 550 ℃～650 ℃, 10～20 minutes time, takes out after being cooled to normal temperature;
4) preparation post-processing stages: carbonization, activation Hemp Eupatorium are well put into hydrochloric acid soln and boil, then wash to pH be 6.5～7.0,100 ℃～120 ℃ oven dry, make its quality index meet the requirement of gac at last, get final product to get Powdered Hemp Eupatorium gac.
2. method according to claim 1 is characterized in that step 1) in drying be in baking oven in 100 ℃～120 ℃ the oven dry or naturally dry;
3. method according to claim 1, it is characterized in that pretreatment stage the liquor zinci chloridi massfraction be 30%～50%, soak time is 12～20 hours;
4. method according to claim 1 is characterized in that step 4) described in concentration of hydrochloric acid solution be 0.1mo1/L-0.2mol/L, washings adopts deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102155022A CN102897760A (en) | 2011-07-29 | 2011-07-29 | Method for preparing activated carbon by using eupatorium adenophorum |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102155022A CN102897760A (en) | 2011-07-29 | 2011-07-29 | Method for preparing activated carbon by using eupatorium adenophorum |
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| CN102897760A true CN102897760A (en) | 2013-01-30 |
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| CN2011102155022A Pending CN102897760A (en) | 2011-07-29 | 2011-07-29 | Method for preparing activated carbon by using eupatorium adenophorum |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692380A (en) * | 2015-02-04 | 2015-06-10 | 昆明理工大学 | Preparation method of Ageratina-adenophora-base high-specific-area activated carbon |
| CN108383667A (en) * | 2018-05-28 | 2018-08-10 | 贵州玉屏展鸿茶叶有限公司 | A kind of fertilizer special for tea trees and preparation method thereof improving tea yield |
| CN109802108A (en) * | 2018-12-29 | 2019-05-24 | 河南新太行电源股份有限公司 | A kind of preparation method and applications of bamboo base porous carbon graphite |
| CN114452934A (en) * | 2022-01-20 | 2022-05-10 | 云南中烟工业有限责任公司 | Eupatorium adenophorum spreng-based porous carbon material, and preparation method and application thereof |
| CN115924915A (en) * | 2022-11-18 | 2023-04-07 | 安徽农业大学 | Preparation method of solidago canadensis activated carbon |
Citations (4)
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| US4242226A (en) * | 1978-02-21 | 1980-12-30 | Siren Matti J | Filter material and a method of manufacturing and using the same |
| US4831011A (en) * | 1986-02-17 | 1989-05-16 | Nippondenso Co., Ltd. | Carbon-based adsorbent and process for production thereof |
| WO2003072498A1 (en) * | 2002-02-25 | 2003-09-04 | Gentex Corporation | Reactive-adsorptive protective materials and methods for use |
| CN1765739A (en) * | 2005-09-05 | 2006-05-03 | 昆明理工大学 | Method for utilizing purple stem boneset |
-
2011
- 2011-07-29 CN CN2011102155022A patent/CN102897760A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4242226A (en) * | 1978-02-21 | 1980-12-30 | Siren Matti J | Filter material and a method of manufacturing and using the same |
| US4831011A (en) * | 1986-02-17 | 1989-05-16 | Nippondenso Co., Ltd. | Carbon-based adsorbent and process for production thereof |
| WO2003072498A1 (en) * | 2002-02-25 | 2003-09-04 | Gentex Corporation | Reactive-adsorptive protective materials and methods for use |
| CN1765739A (en) * | 2005-09-05 | 2006-05-03 | 昆明理工大学 | Method for utilizing purple stem boneset |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692380A (en) * | 2015-02-04 | 2015-06-10 | 昆明理工大学 | Preparation method of Ageratina-adenophora-base high-specific-area activated carbon |
| CN108383667A (en) * | 2018-05-28 | 2018-08-10 | 贵州玉屏展鸿茶叶有限公司 | A kind of fertilizer special for tea trees and preparation method thereof improving tea yield |
| CN109802108A (en) * | 2018-12-29 | 2019-05-24 | 河南新太行电源股份有限公司 | A kind of preparation method and applications of bamboo base porous carbon graphite |
| CN114452934A (en) * | 2022-01-20 | 2022-05-10 | 云南中烟工业有限责任公司 | Eupatorium adenophorum spreng-based porous carbon material, and preparation method and application thereof |
| CN114452934B (en) * | 2022-01-20 | 2024-03-01 | 云南中烟工业有限责任公司 | Porous carbon material based on eupatorium adenophorum, preparation method and application thereof |
| CN115924915A (en) * | 2022-11-18 | 2023-04-07 | 安徽农业大学 | Preparation method of solidago canadensis activated carbon |
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Application publication date: 20130130 |