CN102249228B - Method for preparing activated carbon from pinecone - Google Patents
Method for preparing activated carbon from pinecone Download PDFInfo
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- CN102249228B CN102249228B CN2011101586952A CN201110158695A CN102249228B CN 102249228 B CN102249228 B CN 102249228B CN 2011101586952 A CN2011101586952 A CN 2011101586952A CN 201110158695 A CN201110158695 A CN 201110158695A CN 102249228 B CN102249228 B CN 102249228B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
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Abstract
The invention discloses a method for preparing activated carbon from pinecone, which comprises the following steps of: (1) drying the pinecone at the temperature of between 100 and 120 DEG C for 20 to 30 hours; (2) grinding the dried pinecone in the step (1) into pinecone particles with the size of 1 to 3mm; (3) mixing the pinecone particles in the step (2) and potassium hydroxide in a weight ratio of 1:1-1:4, adding water and soaking for 20 to 30 hours to obtain a mixed material; (4) putting the mixed material in the step (3) into a microwave oven, carbonizing and activating to obtain an activated mixed material, wherein microwave irradiation power is 200 to 700W, and microwave irradiation time is 5 to 10 minutes; and (5) washing the activated mixed material in the step (4) by using acid and water respectively, drying and grinding to obtain the activated carbon. By the method, the raw material is cheap and readily available, the production cost of the activated carbon is reduced, waste is recycled, resources are circulated, and the development of low-carbon economy is promoted.
Description
Technical field
The present invention relates to a kind of preparation method of active carbon, particularly relate to and a kind ofly prepare process of active carbon with the pinecone.
Background technology
Gac is a kind of extremely important sorbent material, and its good performance makes it to be widely used in fields such as food-processing, pharmacy, chemical industry, refining of petroleum, biotechnology, the energy and environmental protection.The application of gac in the environmental protection field mainly is the purifying that is used for tap water, the processing and the absorption toxic and harmful of waste water.In recent years, environmental pollution is on the rise, and drinking water deep purification, wastewater treatment, purifying air are paid much attention in countries in the world.And in China, along with the raising of national water quality standard, areas such as the Yangtze River Delta, Pearl River Delta all cover waterworks at county level with the gac water-purifying process.Therefore the market outlook of gac are all boundless both at home and abroad.But expensive starting material and production cost make it to hold at high price, so the new raw material of seeking to prepare gac has realistic meaning and Commercial Prospect.
China is maximum in the world Activated Carbon Production state; The output of gac accounts for 1/3rd of world wide production; The starting material of existing preparation gac mainly are non-renewable and expensive resources, and like coal and timber etc., active carbon from coal accounts for 60% of ultimate production; Wood activated charcoal accounts for 35% of ultimate production, and active fruit shell carbon only accounts for 5% of ultimate production.
At present do not see that as yet the report that utilizes the pinecone to prepare gac is arranged both at home and abroad.
Summary of the invention
The objective of the invention is to address the above problem, provide a kind of production cost low prepare process of active carbon with the pinecone.
The technical scheme that realizes the object of the invention is: a kind ofly prepare process of active carbon with the pinecone, have following steps: 1. the pinecone is dried 20h～30h under 100 ℃～120 ℃ temperature; 2. the pinecone after the step oven dry 1. being crushed to particle diameter is 1mm～3mm, obtains pinecone particle; 3. step pinecone particle is 2. mixed according to 1: 1～1: 4 weight ratio with Pottasium Hydroxide, and add water and make it to flood 20h～30h, and obtain mixture; 4. place microwave oven to carry out charing and activation step mixture 3., microwave exposure power is 200W～700W, and microwave irradiation time is 5min～10min, obtains the mixture after the activation; 5. the mixture after the step activation is 4. carried out pickling, washing, oven dry, grinding successively and obtain gac.
The pinecone particle of above-mentioned steps described in 3. and the weight ratio of Pottasium Hydroxide are 1: 3～1: 4.
The microwave exposure power of above-mentioned steps described in 4. is 280W～600W, and microwave irradiation time is 7min～9min.
The pickling of above-mentioned steps described in 5. is that to use volume ratio be that 1: 10 hydrochloric acid boils 20min～40min under 80 ℃～100 ℃.
The washing of above-mentioned steps described in 5. be after using zero(ppm) water with pickling the material rinsing to pH be 6.5～7.5.
The pinecone of above-mentioned steps in 1. preferably taken from the strobilus pini of Pinus koraiensis through natural air drying of the Northeast.
The positively effect that the present invention has: the present invention has utilized the pinecone to prepare gac first, and not only low in raw material cost is easy to get, and has reduced the production cost of gac.Because after processing pine nut, the pinecone is usually thrown away, so the present invention also turns waste into wealth, and makes resources circulation to promote the development of low-carbon economy.
Embodiment
(embodiment 1)
The preparation method of active carbon of embodiment has following steps:
1. the strobilus pini of Pinus koraiensis through natural air drying that will take from the Northeast is dried 24h under 108 ℃ temperature.
2. the pinecone after the step oven dry 1. being crushed to particle diameter is about 2mm, obtains pinecone particle.
3. get 8g step pinecone particle 2. and mix, add 50ml water and stir, obtain mixture behind the dipping 24h with the KOH particle of 24g.
4. step mixture is 3. placed microwave oven charing under the microwave exposure power of 300W, activation 9min, obtain the mixture after the activation.
5. the mixture after the step activation 4. being used earlier volume ratio is that 1: 10 hydrochloric acid (being meant the ratio of volume and the volume of water of the concentrated hydrochloric acid of 36wt%) boils 30min under 90 ℃; Use then the zero(ppm) water rinsing to pH be 7; Under 120 ℃ temperature, dry again, be ground to 200 orders at last and obtain gac.The iodine sorption value of this gac is 1253mg/g.
(embodiment 2)
The preparation method of active carbon of embodiment has following steps:
1. the strobilus pini of Pinus koraiensis through natural air drying that will take from the Northeast is dried 24h under 108 ℃ temperature.
2. the pinecone after the step oven dry 1. being crushed to particle diameter is about 2mm, obtains pinecone particle.
3. get 8g step pinecone particle 2. and mix, add 50ml water and stir, obtain mixture behind the dipping 24h with the KOH particle of 24g.
4. step mixture is 3. placed microwave oven charing under the microwave exposure power of 560W, activation 9min, obtain the mixture after the activation.
5. the mixture after the step activation 4. being used earlier volume ratio is that 1: 10 hydrochloric acid (being meant the ratio of volume and the volume of water of the concentrated hydrochloric acid of 36wt%) boils 30min under 90 ℃; Use then the zero(ppm) water rinsing to pH be 7; Under 120 ℃ temperature, dry again, be ground to 200 orders at last and obtain gac.The iodine sorption value of this gac is 1424mg/g.
Claims (6)
1. one kind prepares process of active carbon with the pinecone, it is characterized in that having following steps:
1. the pinecone is dried 20h～30h under 100 ℃～120 ℃ temperature;
2. the pinecone after the step oven dry 1. being crushed to particle diameter is 1mm～3mm, obtains pinecone particle;
3. step pinecone particle is 2. mixed according to 1: 1～1: 4 weight ratio with Pottasium Hydroxide, and add water and make it to flood 20h～30h, and obtain mixture;
4. place microwave oven to carry out charing and activation step mixture 3., microwave exposure power is 200W～700W, and microwave irradiation time is 5min～10min, obtains the mixture after the activation;
5. the mixture after the step activation is 4. carried out pickling, washing, oven dry, grinding successively and obtain gac.
2. according to claim 1ly prepare process of active carbon with the pinecone, it is characterized in that: the pinecone particle of step described in 3. and the weight ratio of Pottasium Hydroxide are 1: 3～1: 4.
3. according to claim 1ly prepare process of active carbon with the pinecone, it is characterized in that: the microwave exposure power of step described in 4. is 280W～600W, and microwave irradiation time is 7min～9min.
4. according to claim 1ly prepare process of active carbon with the pinecone, it is characterized in that: the pickling of step described in 5. is that to use volume ratio be that 1: 10 hydrochloric acid boils 20min～40min under 80 ℃～100 ℃.
5. according to claim 1ly prepare process of active carbon, it is characterized in that with the pinecone: the washing of step described in 5. be after using zero(ppm) water with pickling the material rinsing to pH be 6.5～7.5.
6. according to claim 1ly prepare process of active carbon with the pinecone, it is characterized in that: the pinecone of step in 1. is the strobilus pini of Pinus koraiensis through natural air drying of taking from the Northeast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101586952A CN102249228B (en) | 2011-06-14 | 2011-06-14 | Method for preparing activated carbon from pinecone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101586952A CN102249228B (en) | 2011-06-14 | 2011-06-14 | Method for preparing activated carbon from pinecone |
Publications (2)
| Publication Number | Publication Date |
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| CN102249228A CN102249228A (en) | 2011-11-23 |
| CN102249228B true CN102249228B (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101586952A Expired - Fee Related CN102249228B (en) | 2011-06-14 | 2011-06-14 | Method for preparing activated carbon from pinecone |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674910A (en) * | 2012-05-03 | 2012-09-19 | 潍坊太乙生物科技有限公司 | Bio-fertilizer for organically cultivating crops and preparation method of bio-fertilizer |
| US8921263B2 (en) * | 2012-08-21 | 2014-12-30 | Corning Incorporated | Microwave energy-assisted, chemical activation of carbon |
| CN103785356B (en) * | 2013-10-21 | 2015-09-23 | 溧阳市浙大产学研服务中心有限公司 | A kind of pomelo peel, waste of flax, walnut shell prepare the method for active carbon |
| CN103818903B (en) * | 2013-10-21 | 2015-09-23 | 溧阳市浙大产学研服务中心有限公司 | The method of gac prepared by a kind of Exocarpium cocois (Cocos nucifera L), pomelo peel, waste of flax |
| CN103816866B (en) * | 2013-10-21 | 2016-04-06 | 溧阳市浙大产学研服务中心有限公司 | A kind of rice husk, cornstalk, cocoanut shell prepare the method for active carbon |
| CN103787330B (en) * | 2013-10-21 | 2015-08-05 | 溧阳市浙大产学研服务中心有限公司 | A kind of almond shell, the pinecone, rice husk prepare the method for gac |
| CN103818904B (en) * | 2013-10-21 | 2015-09-23 | 溧阳市浙大产学研服务中心有限公司 | A kind of pinecone, rice husk, corn stalk prepare the method for gac |
| CN103803544B (en) * | 2013-10-21 | 2015-06-10 | 溧阳市浙大产学研服务中心有限公司 | Method for preparing active carbon from walnut shells, phoenix tree leaves and wheat straw |
| CN103818901B (en) * | 2013-10-21 | 2015-06-10 | 溧阳市浙大产学研服务中心有限公司 | Method for preparing activated carbon by using cornstalks, coconut shells and shaddock peels |
| CN105312040B (en) * | 2015-11-12 | 2018-01-23 | 中山大学 | A kind of preparation method of indoor formaldehyde high-efficiency adsorbent |
| CN105502393A (en) * | 2016-01-25 | 2016-04-20 | 石河子大学 | Macadamia nut shell activated carbon and microwave heating preparation method thereof |
| CN108690504B (en) * | 2017-04-06 | 2021-01-05 | 湖州欧美新材料有限公司 | Preparation method of organic acid modified pinecone resin, organic acid modified pinecone resin and regeneration method |
| CN109319777A (en) * | 2018-11-21 | 2019-02-12 | 江苏大学 | A kind of pinecone base prepares the method and its application of biological activated carbon |
| CN116282009A (en) * | 2023-05-04 | 2023-06-23 | 烟台大学 | Preparation method of pine cone activated carbon and pine cone activated carbon |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1511784A (en) * | 2002-12-28 | 2004-07-14 | 谢仁智 | Process for preparing large and medium pore high performance active carbon |
| CN1669918A (en) * | 2005-02-28 | 2005-09-21 | 昆明理工大学 | Method for producing active carbon with high specific surface area |
| CN101003370A (en) * | 2006-01-16 | 2007-07-25 | 李国君 | Method for preparing active carbon in use for decoloring sugar |
| CN101121512A (en) * | 2007-04-29 | 2008-02-13 | 武汉理工大学 | Preparation method for plant active carbon fibre column |
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2011
- 2011-06-14 CN CN2011101586952A patent/CN102249228B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1511784A (en) * | 2002-12-28 | 2004-07-14 | 谢仁智 | Process for preparing large and medium pore high performance active carbon |
| CN1669918A (en) * | 2005-02-28 | 2005-09-21 | 昆明理工大学 | Method for producing active carbon with high specific surface area |
| CN101003370A (en) * | 2006-01-16 | 2007-07-25 | 李国君 | Method for preparing active carbon in use for decoloring sugar |
| CN101121512A (en) * | 2007-04-29 | 2008-02-13 | 武汉理工大学 | Preparation method for plant active carbon fibre column |
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Owner name: NANTONG BAOLAILI BEARING CO., LTD. Free format text: FORMER OWNER: JIANGSU TECHNOLOGY NORMAL COLLEGE Effective date: 20130805 Owner name: JIANGSU UNIVERSITY OF TECHNOLOGY Effective date: 20130805 |
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Effective date of registration: 20130805 Address after: 226600 No. 203 middle Tongyu Road, Haian County Development Zone, Jiangsu, Nantong Patentee after: Nantong Baolaili Axletree Co. Ltd. Patentee after: Jiangsu University of Technology Address before: 213000 Changzhou Province in the Clock Tower District, Jiangsu, Wu Road, No. 1801 Patentee before: Jiangsu Teachers University of Technology |
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