CN1511784A - Process for preparing large and medium pore high performance active carbon - Google Patents
Process for preparing large and medium pore high performance active carbon Download PDFInfo
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- CN1511784A CN1511784A CNA021603529A CN02160352A CN1511784A CN 1511784 A CN1511784 A CN 1511784A CN A021603529 A CNA021603529 A CN A021603529A CN 02160352 A CN02160352 A CN 02160352A CN 1511784 A CN1511784 A CN 1511784A
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Abstract
The production process of active carbon with wooden material features the activating assistant phosphoric acid, activating agent mixed acid comprising sulfuric acid, hydrochloric acid, etc., increased curing and hardening steps and the active carbon product with strong adsorption performance to macro molecular compounds and high strength. The prepared fruit shell active carbon has methylene blue adsorbing rate up to 300 mg/g, caramel decoloring rate of 160 %, iodine adsorbing value up to 1200 mg/g, strength higher than 80 % and yield up to 33 %. The prepared wood dust active carbon has methylene blue adsorbing rate up to 255 mg/g, caramel decoloring rate of 180 % and yield up to 30 %.
Description
One, technical field:
The invention belongs to the manufacture method of wood activated charcoal, especially produce the manufacture method of the wood activated charcoal that absorption macromole performance is strong, particle charcoal intensity is high.
Two, background technology:
Activated Carbon Production generally has two kinds of chemical method and physics methods, and the gac that the physics method is produced is based on micropore, the gac of chemical method production based in, macropore.The absorption macromole need be main gac with big, mesopore.
Big, the mesopore activated carbon of chemical method (zinc chloride process, phosphoric acid method) production at present, the high 240mg/g of methylene blue adsorption value (16ml), B method caramel percent of decolourization reaches 120%.GB top grade product (GB/T 1380.3-1999) A method caramel percent of decolourization 100%, B method caramel percent of decolourization 100%, the particle charcoal intensity of production is low.
The gac methylene blue adsorption value of the present invention's preparation reaches 300mg/g (20ml/0.1g) B method caramel percent of decolourization and reaches 180%, and particle charcoal intensity is greater than 80%, and yield is greater than 30%.
Three, summary of the invention:
The present invention is with the strong wood activated charcoal manufacture method of chemical method preparation absorption macromole performance.Concrete manufacturing process:
Process explanation: with wood material (wood chip, wood chip, furfural dregs, waste of flax, cotton stalk, coconut husk, the apricot shell, the spade shell, olive shell etc.), be crushed to certain particle size (except the wood chip), with the phosphoric acid of 30-85% concentration and 98% sulfuric acid (the sulfuric acid addition is the 3-10% of phosphoric acid amount) mixing acid dipping, dipping temperature is 10-120 ℃, dipping time is 6-24 hour, the unnecessary steeping fluid of dipping back elimination, wood material behind the dipping solidified 4-24 hour down at 40-120 ℃, the wooden material of phosphoric acid after the curing carries out charing, activation, activation temperature 300-700 ℃, soak time is 0.5-4 hour.Reclaim the phosphoric acid in the activated material, and washing, drying, and be finished product in 0.5-3 hour 100-500 ℃ of sclerosis.The test product performance:
The wood chip class: methylene blue adsorption value reaches 255mg/g (17ml/0.1g), B method caramel percent of decolourization 180%, yield 30%.
Shell class particle charcoal: methylene blue adsorption value reaches 300mg/g (20ml/0.1g), B method caramel percent of decolourization 160%, and intensity is greater than 80%, yield 33%.
Four, embodiment:
Embodiment 1
10 parts on 10-20 order apricot shell flooded the dipping acid solution that elimination is unnecessary with 30-85% phosphoric acid and 3-10 part 98% sulfuric acid, mixed in hydrochloric acid acid solution 10-24 hour at 60-120 ℃.Dipping apricot shell solidified 4-24 hour at 40-120 ℃, solidified back dipping apricot shell 300-700 ℃ of activation 0.5-4 hour.Activated material is through reclaiming phosphoric acid, washing, drying, and behind 100-500 ℃ of sclerosis 0.5-3 3.3 parts of finished particle gacs.Apricot shell charcoal methylene blue adsorption value is up to 300mg/g (20ml/0.1g), B method caramel percent of decolourization 160%, and intensity is greater than 80%, and iodine sorption value is greater than 1200mg/g, yield 33%.
Embodiment 2
10 parts of 6-8 order coconut husks flooded the dipping acid solution that elimination is unnecessary with 30-85% phosphoric acid and 3-10 part 98% sulfuric acid, mixed in hydrochloric acid acid solution 10-24 hour at 80-120 ℃.The dipping coconut husk solidified 4-24 hour at 40-120 ℃, solidified back dipping coconut husk 300-700 ℃ of activation 0.5-4 hour.Activated material is through reclaiming phosphoric acid, washing, drying, and behind 100-500 ℃ of sclerosis 0.5-3 3.3 parts of finished particle gacs.Coconut husk charcoal methylene blue adsorption value is up to 285mg/g (19ml/0.1g), B method caramel percent of decolourization 150%, and intensity is greater than 80%, and iodine sorption value is greater than 1200mg/g, yield 33%.
Embodiment 3
10 parts on 10-20 order spade shell flooded the dipping acid solution that elimination is unnecessary with 30-85% phosphoric acid and 3-10 part 98% sulfuric acid, mixed in hydrochloric acid acid solution 10-24 hour at 60-120 ℃.Dipping spade shell solidified 4-24 hour at 40-120 ℃, solidified back dipping spade shell 300-700 ℃ of activation 0.5-4 hour.Activated material is through reclaiming phosphoric acid, washing, drying, and behind 100-500 ℃ of sclerosis 0.5-3 3.3 parts of finished particle gacs.Spade shell charcoal methylene blue adsorption value is up to 292.5mg/g (19.5ml/0.1g), B method caramel percent of decolourization 160%, and intensity is greater than 80%, and iodine sorption value is greater than 1200mg/g, yield 33%.
Embodiment 4
10 parts of wood chips flooded the dipping acid solution that elimination is unnecessary with 30-85% phosphoric acid and 3-10 part 98% sulfuric acid, mixed in hydrochloric acid acid solution 6-24 hour at 10-80 ℃.The dipping wood chip solidified 4-24 hour at 40-120 ℃, solidified back dipping wood chip 300-700 ℃ of activation 0.5-4 hour.Activated material gets 3 parts of finished powder shaped activated carbons after reclaiming phosphoric acid, washing, drying.Wood chip active carbon finished products methylene blue adsorption value is up to 255mg/g (17ml/0.1g), B method caramel percent of decolourization 180%, yield 30%.
Embodiment 5
Be crushed to 10 parts of 2-3mm wastes of flax, flooded the dipping acid solution that elimination is unnecessary 6-24 hour at 10-80 ℃ with 30-85% phosphoric acid and 3-10 part 98% sulfuric acid, mixed in hydrochloric acid acid solution.The dipping waste of flax solidified 4-24 hour at 40-120 ℃, solidified back dipping waste of flax 300-700 ℃ of activation 0.5-4 hour.Activated material gets 3 parts of finished powder shaped activated carbons after reclaiming phosphoric acid, washing, drying.Kenaf stalk activated charcoal finished product methylene blue adsorption value is up to 270mg/g (18ml/0.1g), B method caramel percent of decolourization 180%, yield 30%.
Reference examples 1:
10 parts on 6-8 order apricot shell flooded 10-24 hour at 80-120 ℃ with 30-85% phosphoric acid, and following technology is with embodiment 1.Get 3.3 parts of apricot shell gacs, the product methylene blue adsorption value is 180mg/g (12ml/0.1g), and B method caramel percent of decolourization is 95%.
Reference examples 2
10 parts of wood chips flooded 6-24 hour at 10-80 ℃ with 30-85% phosphoric acid, and following technology is with embodiment 4.Get 3 parts of wood chip gacs, the product methylene blue adsorption value is 210mg/g (14ml/0.1g), and B method caramel percent of decolourization is 100%.
Embodiment and reference examples the results list 1
Table 1 embodiment 1-5 and reference examples 1-2 be summary table as a result
| Instance number | Raw material | Methylene blue adsorption value | B method caramel percent of decolourization (%) | Iodine sorption value (mg/g) | Intensity (%) | Yield (%) |
| Embodiment 1 | The apricot shell | ??300mg/g ??(20ml/0.1g) | ????150 | ??＞1200 | ??80 | ????33 |
| Embodiment 2 | Coconut husk | ??285mg/g ??(19ml/0.1g) | ????150 | ??＞1200 | ??80 | ????33 |
| Embodiment 3 | Wood chip | ??292.5mg/g ??(19.5ml/0.1g) | ????150 | ??1200 | ??/ | ????33 |
| Embodiment 4 | Waste of flax | ??255mg/g ??(17ml/0.1g) | ????180 | ??/ | ????/ | ????30 |
| Embodiment 5 | The apricot shell | ??270mg/g ??(18ml/0.1g) | ????180 | ??/ | ????80 | ????30 |
| Reference examples 1 | The apricot shell | ??180mg/g ??(12ml/0.1g) | ????95 | ??/ | ????80 | ????33 |
| Reference examples 2 | Wood chip | ??210mg/g ??(14ml/0.1g) | ????100 | ??/ | ????/ | ????30 |
| GB (GB/ T1380.3-1999) | ?/ | ??/ | ????100 | ??/ | ????/ | ????/ |
Claims (4)
1, a kind of with plant material production process of active carbon, it is characterized in that with phosphoric acid be activator, add assistant activator, produce the process of active carbon that absorption macromolecular cpd performance is strong, intensity is high.
2, right 1 described plant material is meant wood chip, wood chip, furfural dregs, waste of flax, cotton stalk, coconut husk, apricot shell, nut-shell, olive shell etc.
3, right 1 described assistant activator is sulfuric acid, hydrochloric acid etc.
4, the method for raising intensity is to increase curing, hardening process in technology in the right 1.
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| CNA021603529A CN1511784A (en) | 2002-12-28 | 2002-12-28 | Process for preparing large and medium pore high performance active carbon |
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| CNA021603529A CN1511784A (en) | 2002-12-28 | 2002-12-28 | Process for preparing large and medium pore high performance active carbon |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318295C (en) * | 2005-09-19 | 2007-05-30 | 朝阳森塬活性炭有限公司 | Method of making special active carbon for capacitor using hard fruit shell |
| CN100348481C (en) * | 2005-10-05 | 2007-11-14 | 西南交通大学 | Production of active carbon material for capacitor electrode with double electric layers |
| CN100371245C (en) * | 2006-01-24 | 2008-02-27 | 朝阳森塬活性炭有限公司 | Preparation method of granular active carbon for sugar decoloration |
| CN100455348C (en) * | 2007-04-19 | 2009-01-28 | 浙江大学 | Preparation of multistage natural adsorbent for treating organic waste gas, and method of use |
| CN100463850C (en) * | 2006-09-13 | 2009-02-25 | 海南大学 | Method of preparing low ash high specific surface area active carbon from coconut shell slag |
| CN102092712A (en) * | 2011-01-31 | 2011-06-15 | 中国林业科学研究院林产化学工业研究所 | Method for directionally preparing high specific surface area wood-pellets activated carbon at low temperature |
| CN102153082A (en) * | 2011-04-25 | 2011-08-17 | 福建省将乐县乐洪活性炭有限公司 | Method for preparing wood activated carbon by phosphoric acid method |
| CN101816929B (en) * | 2009-10-10 | 2011-08-31 | 兰州理工大学 | Method for preparing imporous carbon absorbent material |
| CN102249228A (en) * | 2011-06-14 | 2011-11-23 | 江苏技术师范学院 | Method for preparing activated carbon from pinecone |
| CN102698724A (en) * | 2012-04-06 | 2012-10-03 | 淮北市大华活性炭有限公司 | Method for producing active carbon for gasoline vapor adsorption |
| CN102786050A (en) * | 2012-07-16 | 2012-11-21 | 太仓市联林活性炭厂 | Method for preparing microporous cocoanut active charcoal by pyrolysis and activation |
| CN102806074A (en) * | 2011-06-01 | 2012-12-05 | 张跟满 | Manufacturing method of natural deodorant |
| CN101790491B (en) * | 2007-07-19 | 2013-03-13 | 诺芮特荷兰有限公司 | Chemically activated carbon and methods for preparing same |
| CN103480330A (en) * | 2013-09-10 | 2014-01-01 | 华南理工大学 | Biomass-modified adsorbent for adsorbing coking wastewater, and preparation method and application thereof |
| CN103521177A (en) * | 2013-08-30 | 2014-01-22 | 蚌埠凤凰滤清器有限责任公司 | Carbonized flour modified active carbon adsorbent and preparation method thereof |
| CN105664896A (en) * | 2016-02-02 | 2016-06-15 | 西北大学 | Fe-doped walnut shell activated carbon for treating dye wastewater as well as preparation method and application of activated carbon |
| CN105688835A (en) * | 2016-04-10 | 2016-06-22 | 武汉沃特工程技术有限公司 | Adsorption material capable of removing ammonia nitrogen in solution and preparation method of adsorption material |
| CN106140100A (en) * | 2015-05-14 | 2016-11-23 | 厦门大学嘉庚学院 | A kind of methylene blue method of wastewater treatment |
| CN107335402A (en) * | 2016-11-21 | 2017-11-10 | 德宏师范高等专科学校 | A kind of method of effectively absorption methylene blue in waste |
| CN107537440A (en) * | 2017-09-15 | 2018-01-05 | 江苏科力特环保科技有限公司 | A kind of preparation method of organic matter absorption granular activated carbon |
| CN109133057A (en) * | 2018-11-16 | 2019-01-04 | 南京正森环保科技有限公司 | A kind of macroporous granules active carbon and preparation method thereof |
| CN110078072A (en) * | 2019-05-08 | 2019-08-02 | 西藏农牧学院 | A kind of active carbon and preparation method thereof for vegetable oil efficient decolorizing |
| CN110574685A (en) * | 2019-10-09 | 2019-12-17 | 北部湾大学 | Aseptic seedling induction method for Saraca indica |
-
2002
- 2002-12-28 CN CNA021603529A patent/CN1511784A/en active Pending
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318295C (en) * | 2005-09-19 | 2007-05-30 | 朝阳森塬活性炭有限公司 | Method of making special active carbon for capacitor using hard fruit shell |
| CN100348481C (en) * | 2005-10-05 | 2007-11-14 | 西南交通大学 | Production of active carbon material for capacitor electrode with double electric layers |
| CN100371245C (en) * | 2006-01-24 | 2008-02-27 | 朝阳森塬活性炭有限公司 | Preparation method of granular active carbon for sugar decoloration |
| CN100463850C (en) * | 2006-09-13 | 2009-02-25 | 海南大学 | Method of preparing low ash high specific surface area active carbon from coconut shell slag |
| CN100455348C (en) * | 2007-04-19 | 2009-01-28 | 浙江大学 | Preparation of multistage natural adsorbent for treating organic waste gas, and method of use |
| CN101790491B (en) * | 2007-07-19 | 2013-03-13 | 诺芮特荷兰有限公司 | Chemically activated carbon and methods for preparing same |
| CN101816929B (en) * | 2009-10-10 | 2011-08-31 | 兰州理工大学 | Method for preparing imporous carbon absorbent material |
| CN102092712A (en) * | 2011-01-31 | 2011-06-15 | 中国林业科学研究院林产化学工业研究所 | Method for directionally preparing high specific surface area wood-pellets activated carbon at low temperature |
| CN102153082A (en) * | 2011-04-25 | 2011-08-17 | 福建省将乐县乐洪活性炭有限公司 | Method for preparing wood activated carbon by phosphoric acid method |
| CN102806074A (en) * | 2011-06-01 | 2012-12-05 | 张跟满 | Manufacturing method of natural deodorant |
| CN102249228B (en) * | 2011-06-14 | 2012-12-26 | 江苏技术师范学院 | Method for preparing activated carbon from pinecone |
| CN102249228A (en) * | 2011-06-14 | 2011-11-23 | 江苏技术师范学院 | Method for preparing activated carbon from pinecone |
| CN102698724A (en) * | 2012-04-06 | 2012-10-03 | 淮北市大华活性炭有限公司 | Method for producing active carbon for gasoline vapor adsorption |
| CN102786050A (en) * | 2012-07-16 | 2012-11-21 | 太仓市联林活性炭厂 | Method for preparing microporous cocoanut active charcoal by pyrolysis and activation |
| CN103521177A (en) * | 2013-08-30 | 2014-01-22 | 蚌埠凤凰滤清器有限责任公司 | Carbonized flour modified active carbon adsorbent and preparation method thereof |
| CN103480330A (en) * | 2013-09-10 | 2014-01-01 | 华南理工大学 | Biomass-modified adsorbent for adsorbing coking wastewater, and preparation method and application thereof |
| CN103480330B (en) * | 2013-09-10 | 2015-07-01 | 华南理工大学 | Biomass-modified adsorbent for adsorbing coking wastewater, and preparation method and application thereof |
| CN106140100A (en) * | 2015-05-14 | 2016-11-23 | 厦门大学嘉庚学院 | A kind of methylene blue method of wastewater treatment |
| CN105664896A (en) * | 2016-02-02 | 2016-06-15 | 西北大学 | Fe-doped walnut shell activated carbon for treating dye wastewater as well as preparation method and application of activated carbon |
| CN105688835A (en) * | 2016-04-10 | 2016-06-22 | 武汉沃特工程技术有限公司 | Adsorption material capable of removing ammonia nitrogen in solution and preparation method of adsorption material |
| CN107335402A (en) * | 2016-11-21 | 2017-11-10 | 德宏师范高等专科学校 | A kind of method of effectively absorption methylene blue in waste |
| CN107537440A (en) * | 2017-09-15 | 2018-01-05 | 江苏科力特环保科技有限公司 | A kind of preparation method of organic matter absorption granular activated carbon |
| CN109133057A (en) * | 2018-11-16 | 2019-01-04 | 南京正森环保科技有限公司 | A kind of macroporous granules active carbon and preparation method thereof |
| CN110078072A (en) * | 2019-05-08 | 2019-08-02 | 西藏农牧学院 | A kind of active carbon and preparation method thereof for vegetable oil efficient decolorizing |
| CN110574685A (en) * | 2019-10-09 | 2019-12-17 | 北部湾大学 | Aseptic seedling induction method for Saraca indica |
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