CN101264886A - Method for producing activated carbon from spartina alterniflora stalk - Google Patents
Method for producing activated carbon from spartina alterniflora stalk Download PDFInfo
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- CN101264886A CN101264886A CNA2008100237492A CN200810023749A CN101264886A CN 101264886 A CN101264886 A CN 101264886A CN A2008100237492 A CNA2008100237492 A CN A2008100237492A CN 200810023749 A CN200810023749 A CN 200810023749A CN 101264886 A CN101264886 A CN 101264886A
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- Prior art keywords
- spartina alterniflora
- alterniflora loisel
- cane
- active carbon
- production process
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- 241001149258 Sporobolus alterniflorus Species 0.000 title claims abstract description 79
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000843 powder Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 25
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 18
- 230000004913 activation Effects 0.000 claims abstract description 18
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 18
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 7
- 238000003763 carbonization Methods 0.000 claims description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims description 4
- 238000010298 pulverizing process Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 238000006424 Flood reaction Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 239000001569 carbon dioxide Substances 0.000 claims 1
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 abstract description 20
- 238000002791 soaking Methods 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 5
- 241000894007 species Species 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 238000010000 carbonizing Methods 0.000 abstract 3
- 229960000907 methylthioninium chloride Drugs 0.000 description 18
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 12
- 239000012153 distilled water Substances 0.000 description 9
- 238000002360 preparation method Methods 0.000 description 8
- 229910001873 dinitrogen Inorganic materials 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 239000008367 deionised water Substances 0.000 description 6
- 229910021641 deionized water Inorganic materials 0.000 description 6
- 235000011089 carbon dioxide Nutrition 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000000274 adsorptive effect Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000209504 Poaceae Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 239000003799 water insoluble solvent Substances 0.000 description 1
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- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a method for producing an active carbon by utilizing a stalk of spartina alterniflora. The step of the invention is characterized in that rinsing, drying and then crushing the stalk; putting the crushed spartina alterniflora stalk powder into a phosphoric acid or a potassium hydroxide solution, stirring up evenly and soaking, then separating the solid and the liquid; the separated spartina alterniflora stalk powder is positioned in a tubular oven or a carbonizing oven after drying and carbonizing under the nitrogen protection; continuing to charge the nitrogen or an activation gas to activate after carbonizing; the activated spartina alterniflora stalk powder is rinsed by water, and the active carbon is got after drying. The method for producing the active carbon has the advantages of using the high carbonaceous invasive species apartina alterniflora to act as the raw material, making the active carbon low price and good adsorption performance through the simple, safe, and high efficient process, and realizing to utilize the spartina alterniflora as a resource.
Description
Technical field
The invention belongs to the ecological engineering technology field, be specifically related to gac of a kind of spartina alterniflora loisel's cane production and preparation method thereof.
Background technology
The material that gac is a kind of pore texture prosperity, specific surface area is big, organism in gas and the solution or heavy metal and colloidal solid there is very strong adsorptive power, water insoluble or organic solvent, easily regeneration, and have enough chemical stabilities, physical strength and acid and alkali-resistance, performance such as heat-resisting.Therefore, it is widely used in fields such as environmental protection, catalysis, food, medicine, separation and national defence, has become requisite critical function material in the national economic development and national defense construction and the daily life.
Traditional gac raw material is timber, shell and fat coal; though timber is renewable resources; but its production cycle is long; and be subjected to the restriction of the environment protection and the eubiosis; can not therefore, seek the Activated Carbon Production resource in a large number as raw material; explore new processing condition, crucial meaning is all arranged.The spartina alterniflora loisel is the perennial high bar type C4 herbaceous plant of Gramineae, originates in North America Atlantic Ocean seashore.Spartina alterniflora loisel's cellulose 30～35%, xylogen 18～20%, half fiber 35～40%, its stalk inside is spongy, and many vertical ventilating pits are arranged, and relatively is fit to the requirement of gac contrast table area, pore volume and adsorptive power.
The initial stage eighties, the spartina alterniflora loisel is introduced into China and is used to protect beach shore protection, created land with silt, but as the exotic invasive species, fecundity that it is powerful and tall and big intensive species characteristic, the geographic view of the coastal beach of China, species diversity and aquaculture are had a series of detrimentally affects, listed in the first batch of 16 kinds of invasive species Black Lists of China by State Bureau of Environmental Protection in 2003.Therefore, be the feedstock production gac with spartina alterniflora loisel, not only ecological environment problem can be solved, and this low-cost resource of spartina alterniflora loisel can be made full use of, produce broad-spectrum gac, produce better economic, environment and social benefit.
Summary of the invention
The problem that the objective of the invention is and gac scarcity of raw material low at spartina alterniflora loisel's utilization ratio in the prior art, providing a kind of is raw material with spartina alterniflora loisel's cane, environmental pollution is little, can make full use of spartina alterniflora loisel's resource and the simple preparation method of active carbon of preparation technology's economy, thereby makes a kind of cheap, spartina alterniflora loisel's matrix activated carbon that absorption property is good.
Purpose of the present invention can reach by following measure:
A kind of spartina alterniflora loisel's cane production process of active carbon of utilizing comprises the steps:
A), will pulverize behind spartina alterniflora loisel's cane cleaning, drying;
B), spartina alterniflora loisel's cane powder that pulverizing is obtained adds in phosphoric acid or the potassium hydroxide solution, stir and flood after carry out solid-liquid separation; Wherein the mass concentration of phosphoric acid or potassium hydroxide solution is preferably 10～50%, and the mass ratio of spartina alterniflora loisel's cane powder and phosphoric acid or potassium hydroxide solution is preferably 1: 2～and 5, the time of dipping is preferably 6～12 hours;
C), the oven dry of isolated spartina alterniflora loisel's cane powder is placed in tube furnace or the carbide furnace, under the nitrogen protection of 50～100ml/min, carry out charing; Tube furnace or carbide furnace rose to 300～600 ℃ of carbonization temperatures and constant temperature charing 0.5～3 hour with 4～6 ℃/min during charing, and carbonization temperature is preferably 400～500 ℃;
D), continue to feed feed nitrogen or use the activated gas water vapor instead or carbonic acid gas (be about to nitrogen and change activated gas water vapor or carbonic acid gas into) activates after the charing; Tube furnace or carbide furnace rose to 600～900 ℃ of activation temperatures and constant temperature activation 0.5～2 hour with 8～11 ℃/min when wherein activating, and activation temperature is preferably 700～850 ℃;
E), the spartina alterniflora loisel's cane powder after will activating wash with water (to pH be 6.5～7.5), oven dry promptly gets gac; Considering from economic environmental protection aspect can be when washing, and first water is slightly washed, and reclaims phosphoric acid or potassium metal, washes with water to 6.5～7.5 again.
A kind of preparation method of comparative optimization, comprise choose suitable time to the spartina alterniflora loisel gather in the crops, clean, separate, oven dry, pulverizing, charing, activation, its concrete steps are as follows:
A), will sophisticated spartina alterniflora loisel (after September) harvesting, clean, the oven dry back pulverizes with pulverizer, powder particle diameter is less than 200 orders, preferable particle size is 50～100 orders.
B), the spartina alterniflora loisel's cane powder after the above-mentioned pulverizing is pressed 1: the feed liquid mass ratio of (2～5) adds the phosphoric acid or the potassium hydroxide solution of concentration 10～50%, stirs and floods after 6～12 hours and carry out solid-liquid separation;
C), the spartina alterniflora loisel's cane powder behind the above-mentioned dipping dried in vacuum drying oven be placed in tube furnace or the carbide furnace, under the nitrogen gas stream protection of 50ml/min, rise to 400～500 ℃ of carbonization temperatures, and constant temperature charing 0.5～3 hour with 5 ℃/min;
D), after carbonization time finishes, rise to 700～850 ℃ of carbonization temperatures, continue to feed nitrogen or convert gas to activated gas water vapor or carbonic acid gas by protection nitrogen, constant temperature activation 0.5～2 hour with 10 ℃/min;
E), the spartina alterniflora loisel's cane powder after above-mentioned activation elder generation water is slightly washed, reclaim phosphoric acid or potassium metal, to clean to pH be 6.5～7.5 to water again, and then oven dry promptly obtains gac.
Beneficial effect of the present invention:
1, the present invention has utilized the spartina alterniflora loisel to prepare gac first, has realized the recycling to the spartina alterniflora loisel, has developed a kind of preparation low cost active charcoal resource.
2, spartina alterniflora loisel's strong stress resistance is widely distributed, and is inexpensive, cane, low, the high adsorption capacity of gac cost of preparation.
3, spartina alterniflora loisel's carbon content rate is high and green non-poisonous, and is pollution-free in the process of preparation gac, do not destroy environment.
4, simple, the economy of preparation technology of the present invention, environmental protection meet the needs of recycling economy development, have favorable industrial application prospect.
Embodiment
The invention will be further described below in conjunction with embodiment, but be not limited thereto.
Embodiment 1
With deionized water the back is cleaned, dried to spartina alterniflora loisel's cane 105 ℃ of oven dry down, with pulverizer spartina alterniflora loisel's cane is ground into 100 purpose spartina alterniflora loisel cane powder then.The phosphoric acid of spartina alterniflora loisel's cane powder and 20% mass ratio with 1: 2 was soaked 12 hours; insert tube furnace after spartina alterniflora loisel's cane powder after soaking put into the vacuum drier oven dry; under the protection of the nitrogen gas stream of 50ml/min; be warmed up to 400 ℃ with 5 ℃/min; and constant temperature charing 2 hours under this temperature; then be warmed up to 700 ℃ of activation, activate 0.1 hour with 10 ℃/min.After the cooling, slightly wash recovery phosphoric acid with distilled water, it is 6.5 that the back is washed till PH with distilled water.At last, the product of cleaning is put into baking oven with 105 ℃ of oven dry, get gac.Test according to national standard (GB12496.1-22-1999), leading indicator-methylene blue adsorption value is 12mL/0.1g, and the national standard methylene blue adsorption value is 9mL/0.1g, and the activated carbon product methylene blue adsorption value of present embodiment production is 1.33 times of country-level product.
Embodiment 2
With deionized water the back is cleaned, dried to spartina alterniflora loisel's cane 105 ℃ of oven dry down, with pulverizer spartina alterniflora loisel's cane is ground into 100 purpose spartina alterniflora loisel cane powder then.The potassium hydroxide of spartina alterniflora loisel's cane powder and 20% mass ratio with 1: 2 was soaked 12 hours; insert tube furnace after spartina alterniflora loisel's cane powder after soaking put into the vacuum drier oven dry; under the protection of the nitrogen gas stream of 50ml/min; be warmed up to 400 ℃ with 5 ℃/min; and constant temperature charing 2 hours under this temperature; then be warmed up to 700 ℃ of activation with 10 ℃/min, activate 1 hour, being washed till PH with distilled water behind the cooling recovery potassium metal is 7.5.At last, the product of cleaning is put into baking oven with 105 ℃ of oven dry.Test according to national standard (GB12496.1-22-1999), leading indicator-methylene blue adsorption value is 21.5mL/0.1g, and the national standard methylene blue adsorption value is 9mL/0.1g, and the activated carbon product methylene blue adsorption value of present embodiment production is 2.38 times of country-level product.
Embodiment 3
With deionized water the back is cleaned, dried to spartina alterniflora loisel's cane 105 ℃ of oven dry down, with pulverizer spartina alterniflora loisel's cane is ground into 100 purpose spartina alterniflora loisel cane powder then.The phosphoric acid of spartina alterniflora loisel's cane powder and 20% mass ratio with 1: 2 was soaked 12 hours; insert carbide furnace after spartina alterniflora loisel's cane powder after soaking put into the vacuum drier oven dry; under the protection of the nitrogen gas stream of 50ml/min; be warmed up to 450 ℃ with 5 ℃/min; and constant temperature charing 2 hours under this temperature; then be warmed up to 750 ℃ of activation, and gas is converted to water vapor, constant temperature activation 0.5 hour with 10 ℃/min.After the cooling, slightly wash recovery phosphoric acid with distilled water, it is 6.5 that the back is washed till PH with distilled water.At last, the product of cleaning is put into baking oven with 105 ℃ of oven dry.Test according to national standard (GB12496.1-22-1999), leading indicator-methylene blue adsorption value is 15.3mL/0.1g, and the national standard methylene blue adsorption value is 9mL/0.1g, and the activated carbon product methylene blue adsorption value of present embodiment production is 1.7 times of country-level product.
Embodiment 4
With deionized water the back is cleaned, dried to spartina alterniflora loisel's cane 105 ℃ of oven dry down, with pulverizer spartina alterniflora loisel's cane is ground into 100 purpose spartina alterniflora loisel cane powder then.The potassium hydroxide of spartina alterniflora loisel's cane powder and 20% mass ratio with 1: 2 was soaked 12 hours; insert tube furnace after spartina alterniflora loisel's cane powder after soaking put into the vacuum drier oven dry; under the protection of the nitrogen gas stream of 50ml/min; be warmed up to 450 ℃ with 5 ℃/min; and constant temperature charing 2 hours under this temperature; then be warmed up to 750 ℃ of activation, and gas is converted to water vapor, constant temperature activation 0.5 hour with 10 ℃/min.Potassium metal is reclaimed in the cooling back, and being washed till PH with distilled water again is 7.5.At last, the product of cleaning is put into baking oven with 105 ℃ of oven dry.Test according to national standard (GB12496.1-22-1999), leading indicator-methylene blue adsorption value is 21.3mL/0.1g, and the national standard methylene blue adsorption value is 9mL/0.1g, and the activated carbon product methylene blue adsorption value of present embodiment production is 2.36 times of country-level product.
Embodiment 5
With deionized water the back is cleaned, dried to spartina alterniflora loisel's cane 105 ℃ of oven dry down, with pulverizer spartina alterniflora loisel's cane is ground into 100 purpose spartina alterniflora loisel cane powder then.The phosphoric acid of spartina alterniflora loisel's cane powder and 40% mass ratio with 1: 4 was soaked 12 hours; insert tube furnace after spartina alterniflora loisel's cane powder after soaking put into the vacuum drier oven dry; under the protection of the nitrogen gas stream of 50ml/min; be warmed up to 500 ℃ with 5 ℃/min; and constant temperature charing 1 hour under this temperature; then be warmed up to 800 ℃ of activation, and gas is converted to carbonic acid gas, constant temperature activation 0.5 hour with 10 ℃/min.After the cooling, slightly wash recovery phosphoric acid with distilled water, it is 6.5 that the back is washed till PH with distilled water.At last, the product of cleaning is put into baking oven with 105 ℃ of oven dry.Test according to national standard (GB12496.1-22-1999), leading indicator-methylene blue adsorption value is 14.6mL/0.1g, and the national standard methylene blue adsorption value is, 9mL/0.1g, the activated carbon product methylene blue adsorption value of present embodiment production are 1.62 times of country-level product.
Embodiment 6
With deionized water the back is cleaned, dried to spartina alterniflora loisel's cane 105 ℃ of oven dry down, with pulverizer spartina alterniflora loisel's cane is ground into 100 purpose spartina alterniflora loisel cane powder then.The potassium hydroxide of spartina alterniflora loisel's cane powder and 40% mass ratio with 1: 4 was soaked 12 hours; insert tube furnace after spartina alterniflora loisel's cane powder after soaking put into the vacuum drier oven dry; under the protection of the nitrogen gas stream of 50ml/min; be warmed up to 500 ℃ with 5 ℃/min; and constant temperature charing 0.5 hour under this temperature; then be warmed up to 800 ℃ of activation, and gas is converted to carbonic acid gas, activate 1 hour with 10 ℃/min.Potassium metal is reclaimed in the cooling back, and being washed till PH with distilled water again is 7.5.At last, the product of cleaning is put into baking oven with 105 ℃ of oven dry.Test according to national standard (GB12496.1-22-1999), leading indicator-methylene blue adsorption value is 23.5mL/0.1g, and the national standard methylene blue adsorption value is 9mL/0.1g, and the activated carbon product methylene blue adsorption value of present embodiment production is 2.61 times of country-level product.
Claims (10)
1, a kind of spartina alterniflora loisel's cane production process of active carbon of utilizing is characterized in that comprising the steps:
A), will pulverize behind spartina alterniflora loisel's cane cleaning, drying;
B), spartina alterniflora loisel's cane powder that pulverizing is obtained adds in phosphoric acid or the potassium hydroxide solution, stir and flood after carry out solid-liquid separation;
C), the oven dry of isolated spartina alterniflora loisel's cane powder is placed in tube furnace or the carbide furnace, under nitrogen protection, carry out charing;
D), continue after the charing to feed nitrogen or use activated gas instead to activate;
E), the spartina alterniflora loisel's cane powder after will activating washes with water, oven dry promptly gets gac.
2, spartina alterniflora loisel's cane production process of active carbon of utilizing according to claim 1, the particle diameter that it is characterized in that described spartina alterniflora loisel's cane powder is less than 200 orders.
3, spartina alterniflora loisel's cane production process of active carbon of utilizing according to claim 1, the mass concentration that it is characterized in that described phosphoric acid or potassium hydroxide solution is 10～50%, and the mass ratio of spartina alterniflora loisel's cane powder and phosphoric acid or potassium hydroxide solution is 1: 2～5.
4, spartina alterniflora loisel's cane production process of active carbon of utilizing according to claim 1 is characterized in that the time that described spartina alterniflora loisel's cane powder floods is 6～12 hours in phosphoric acid or potassium hydroxide solution.
5, spartina alterniflora loisel's cane production process of active carbon of utilizing according to claim 1, when it is characterized in that charing, tube furnace or carbide furnace rose to 300～600 ℃ of carbonization temperatures and constant temperature charing 0.5～3 hour with 4～6 ℃/min.
6, spartina alterniflora loisel's cane production process of active carbon of utilizing according to claim 5 is characterized in that described carbonization temperature is 400～500 ℃.
7, spartina alterniflora loisel's cane production process of active carbon of utilizing according to claim 1, when it is characterized in that activating, tube furnace or carbide furnace rise to 600～900 ℃ of activation temperatures with 8～11 ℃/min and constant temperature activates 0.5～2 hour.
8, spartina alterniflora loisel's cane production process of active carbon of utilizing according to claim 1 is characterized in that described activation temperature is 700～850 ℃.
9, spartina alterniflora loisel's cane production process of active carbon of utilizing according to claim 1 is characterized in that described activated gas is water vapor or carbon dioxide.
10, spartina alterniflora loisel's cane production process of active carbon of utilizing according to claim 1, when it is characterized in that washing, first water is slightly washed, and reclaims phosphoric acid or potassium metal, wash with water again to pH be 6.5～7.5.
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| CNA2008100237492A CN101264886A (en) | 2008-04-25 | 2008-04-25 | Method for producing activated carbon from spartina alterniflora stalk |
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| CNA2008100237492A CN101264886A (en) | 2008-04-25 | 2008-04-25 | Method for producing activated carbon from spartina alterniflora stalk |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475165B (en) * | 2008-12-25 | 2011-04-27 | 东华大学 | Method for preparing active carbon from straw stalk |
| CN102267696A (en) * | 2011-07-12 | 2011-12-07 | 华东师范大学 | Method for preparing active carbon from alternanthera philoxeroides |
| CN102600799A (en) * | 2012-03-23 | 2012-07-25 | 上海大学 | Method for treating wasterwater containing copper by utilizing Spartina alterniflora Loisel-based biochar |
| CN102602913A (en) * | 2012-03-23 | 2012-07-25 | 上海大学 | Preparation method of biochar |
| CN102756606A (en) * | 2012-07-24 | 2012-10-31 | 河南华美生物工程有限公司 | Carbon sculpture capable of releasing anions and far infrared rays |
| CN102757048A (en) * | 2012-07-24 | 2012-10-31 | 河南华美生物工程有限公司 | Method for preparing activated carbon from peonies |
| CN102874807A (en) * | 2012-09-19 | 2013-01-16 | 浙江工业大学 | Active carbon material and application of same serving as double-electric layer capacitor electrode material |
| CN103043660A (en) * | 2012-03-03 | 2013-04-17 | 玉山县三清活性炭有限公司 | Method for preparing indefinite-form particle active carbon |
| CN104030286A (en) * | 2014-06-25 | 2014-09-10 | 无锡市崇安区科技创业服务中心 | Spartina alterniflora straw active carbon and preparation method thereof |
| CN104129777A (en) * | 2014-08-26 | 2014-11-05 | 武汉科技大学 | Multifunctional bio-charcoal and preparation method thereof |
| CN104275149A (en) * | 2013-07-08 | 2015-01-14 | 中国石油大学(华东) | Preparation method and application of modified activated carbon material |
| CN104307855A (en) * | 2014-09-30 | 2015-01-28 | 武汉科技大学 | Method for repairing heavy metal contaminated soil in situ by adopting multifunctional biological charcoal |
| CN106904613A (en) * | 2015-12-23 | 2017-06-30 | 北京化工大学常州先进材料研究院 | A kind of preparation method and applications of activated carbon |
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2008
- 2008-04-25 CN CNA2008100237492A patent/CN101264886A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475165B (en) * | 2008-12-25 | 2011-04-27 | 东华大学 | Method for preparing active carbon from straw stalk |
| CN102267696A (en) * | 2011-07-12 | 2011-12-07 | 华东师范大学 | Method for preparing active carbon from alternanthera philoxeroides |
| CN103043660A (en) * | 2012-03-03 | 2013-04-17 | 玉山县三清活性炭有限公司 | Method for preparing indefinite-form particle active carbon |
| CN102600799A (en) * | 2012-03-23 | 2012-07-25 | 上海大学 | Method for treating wasterwater containing copper by utilizing Spartina alterniflora Loisel-based biochar |
| CN102602913A (en) * | 2012-03-23 | 2012-07-25 | 上海大学 | Preparation method of biochar |
| CN102756606A (en) * | 2012-07-24 | 2012-10-31 | 河南华美生物工程有限公司 | Carbon sculpture capable of releasing anions and far infrared rays |
| CN102757048A (en) * | 2012-07-24 | 2012-10-31 | 河南华美生物工程有限公司 | Method for preparing activated carbon from peonies |
| CN102874807A (en) * | 2012-09-19 | 2013-01-16 | 浙江工业大学 | Active carbon material and application of same serving as double-electric layer capacitor electrode material |
| CN104275149A (en) * | 2013-07-08 | 2015-01-14 | 中国石油大学(华东) | Preparation method and application of modified activated carbon material |
| CN104030286A (en) * | 2014-06-25 | 2014-09-10 | 无锡市崇安区科技创业服务中心 | Spartina alterniflora straw active carbon and preparation method thereof |
| CN104129777A (en) * | 2014-08-26 | 2014-11-05 | 武汉科技大学 | Multifunctional bio-charcoal and preparation method thereof |
| CN104129777B (en) * | 2014-08-26 | 2016-03-30 | 武汉科技大学 | A kind of multifunction charcoal and preparation method thereof |
| CN104307855A (en) * | 2014-09-30 | 2015-01-28 | 武汉科技大学 | Method for repairing heavy metal contaminated soil in situ by adopting multifunctional biological charcoal |
| CN106904613A (en) * | 2015-12-23 | 2017-06-30 | 北京化工大学常州先进材料研究院 | A kind of preparation method and applications of activated carbon |
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