CN108439397A - A kind of preparation process of lightweight pressed active carbon - Google Patents
A kind of preparation process of lightweight pressed active carbon Download PDFInfo
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- CN108439397A CN108439397A CN201810409081.9A CN201810409081A CN108439397A CN 108439397 A CN108439397 A CN 108439397A CN 201810409081 A CN201810409081 A CN 201810409081A CN 108439397 A CN108439397 A CN 108439397A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/318—Preparation characterised by the starting materials
- C01B32/324—Preparation characterised by the starting materials from waste materials, e.g. tyres or spent sulfite pulp liquor
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/342—Preparation characterised by non-gaseous activating agents
- C01B32/348—Metallic compounds
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Abstract
A kind of preparation process of lightweight pressed active carbon, belong to activated carbon preparing technical field, it can solve the problems, such as that the preparation process of existing activated carbon can destroy the pore structure of activated carbon and prepared activated carbon is difficult to recycling, waste cotton fiber is soaked with solution of potassium carbonate, 120 DEG C of drying；250 DEG C of heat preservation 1h, pre-oxidation obtain Carbonaceous mesophase substance；It then grinds, zinc chloride and mixing is added, sheetmolding is pushed in 10 25MPa pressure；Finally the carbonaceous mesophase photograph of compacting is put into tube furnace, with the temperature rate of 5 DEG C/min, at 600 800 DEG C, under nitrogen atmosphere after carbonization-activation 30, cooling, pickling, washing and drying are lightweight pressed active carbon.The lightweight pressed active carbon of the present invention need not additionally add binder, and pressed active carbon is prepared using the cementation of Carbonaceous mesophase and the styling mutually synergistic effect of activator zinc chloride.Active carbon forming effect is preferable.
Description
Technical field
The invention belongs to activated carbon preparing technical fields, and in particular to a kind of preparation process of lightweight pressed active carbon.
Background technology
For activated carbon due to abundant pore structure and huge specific surface area, absorption property is good, can be used for gas suction
In the fields such as attached, effects of ion and organic matter absorption, catalyst carrier, capacitor, electrode material.Prepare the raw material of activated carbon
It is very abundant, there are coal, various biomass dead meals, industrial waste, organic substance etc..During preparing activated carbon, activity
Charcoal product is generally two kinds of Powdered Activated Carbon and pressed active carbon in technology continuous development, continuous to the performance requirement of activated carbon
It improves, existing Properties of Activated Carbon cannot meet constantly demand.
In existing preparation molding activated carbon process, binder need to be added and play molding effect.Continuous with binder adds
The pore structure for entering prepared activated carbon can be by considerable damage, and the composition of activated carbon can change, and adsorption effect reduces, and
And it is difficult to recycling in actual application.Therefore, prepare a kind of existing abundant pore structure has specific shape again
Activated carbon it is imperative.
Invention content
The present invention, which is directed to the pore structure for using the preparation process of existing activated carbon that can destroy activated carbon, causes adsorption effect to drop
The problem of low and prepared activated carbon is difficult to recycling provides a kind of preparation process of lightweight pressed active carbon.
The present invention adopts the following technical scheme that：
A kind of preparation process of lightweight pressed active carbon, includes the following steps：
The first step, by cotton fiber, complete wetting 5min dries after complete wetting, taking-up at 120 DEG C in activator solution
It is dry, obtain substance A；
The substance A dried in the first step is placed in Muffle furnace by second step, and 1h is pre-oxidized at 250 DEG C and obtains carbon after cooling
Matter interphase；
Third walks, and after Carbonaceous mesophase is ground to abrasive of the grain size less than 0.075mm, is proportionally added into activation molding and helps
Agent, compression molding, obtains carbon plate after mixing；
4th step, carbon plate is put into tube furnace, is passed through nitrogen, with the heating rate of 5 DEG C/min, is warming up to 600-800 DEG C, charcoal
Change activation 30min；
5th step after charing, after being cooled to 200 DEG C with the rate of temperature fall of 5 DEG C/min, stops heating, naturally cools to 50
After DEG C, it is lightweight pressed active carbon to take out cleaning, drying.
The mass ratio of activator described in the first step and cotton fiber is 1:0.5-1.2.
Cotton fiber described in the first step is waste cotton fiber.
Activator described in the first step is potassium carbonate.
Activation shaping assistant described in third step is zinc chloride, is 1 according to the mass ratio of potassium carbonate and zinc chloride:0-0.4
Ratio be added activation shaping assistant.
Briquetting pressure described in third step is 10-25MPa.
Further, briquetting pressure described in third step is 20-25MPa.
Further, carbonization-activation temperature described in the 4th step is 700 DEG C.
Cleaning process is described in 5th step：10min first is boiled with distilled water, then is boiled with the hydrochloric acid of a concentration of 1mol/L
10min finally boils 10min with distilled water again.
In the present invention, cotton fiber is mixed with solution of potassium carbonate, is conducive to cotton fiber and is uniformly mixed with activator.
After waiting for solution of potassium carbonate complete wetting cotton fiber, 1h is kept the temperature at 120 DEG C, is to evaporate extra water
Point.
In second step substance A be cotton fiber and potassium carbonate mixtures, at 250 DEG C pre-oxidize 1h, it is ensured that potassium carbonate with
Cotton fiber chemically reacts, and generates the Carbonaceous mesophase substance with cementation, is conducive to subsequent molding.
Zinc chloride also has molding effect, can keep the shape of final institute's preparing active carbon other than with activation,
The flatness of activated carbon surface can also be improved.
Beneficial effects of the present invention are as follows：
1. binder need not be additionally added when lightweight pressed active carbon prepared by the present invention, only in the viscous of Carbonaceous mesophase
Molding lightweight activated carbon is prepared under the synergistic effect of the styling of knot effect and activation shaping assistant zinc chloride.Due to not gluing
The addition of agent is tied, single, the not more impurity of prepared activated carbon ingredient, the density of activated carbon is smaller, can be grown on the water surface
Time floats.
2. the pore space structure very abundant of lightweight pressed active carbon prepared by the present invention, while there is specific shape again,
It can be said that the not only absorption property with Powdered Activated Carbon but also the molding effect with pressed active carbon.The activated carbon of preparation is from 2 meters
Eminence falls 10 times and remains to the shape that holds its shape, will not be scaling-off when floating in water, has practical function；In addition, the hole of activated carbon
Structure is very abundant, and absorption property is excellent.
3. lightweight pressed active carbon prepared by preparation process using the present invention may be up to 450 to the adsorptive value of methylene
mg/g。
Description of the drawings
Fig. 1 is the SEM figures of lightweight pressed active carbon prepared by the embodiment of the present invention 1；
Fig. 2 is the figure after lightweight pressed active carbon prepared by the embodiment of the present invention 1 floats for 24 hours on the water surface；
Fig. 3 is the SEM figures of lightweight pressed active carbon prepared by the embodiment of the present invention 7；
Fig. 4 is the SEM figures of lightweight pressed active carbon prepared by the embodiment of the present invention 8.
Specific implementation mode
The present invention will be further described in conjunction with the embodiments.
Embodiment 1
2.875g potassium carbonate is dissolved in 15mL distilled water, solution of potassium carbonate is configured to, it is molten that the cotton fiber of 2g is put into potassium carbonate
In liquid, with glass bar stirring until cotton fiber complete wetting；Then it puts it into 120 DEG C of baking oven, keeps the temperature 1h；It is cooling
Later, it is put into 250 DEG C of Muffle furnace, pyroreaction 1h, at this moment products therefrom is Carbonaceous mesophase；Directly will after reaction
Carbonaceous mesophase substance, which is placed in dry environment, to be cooled to room temperature；Obtained material is used into mortar grinder 10min in dry environment,
Use tabletting machine；Tablet press machine pressure is 20MPa, pressurize 5min；The carbon plate pressed is put into tube furnace, nitrogen is passed through
After 10min, it is 5 DEG C/min that set temperature curve, which be heating rate, is begun to warm up, after rising to 700 DEG C of heat preservation 30min, drop
Warm rate is 5 DEG C/min, is down to 200 DEG C, heating stops, and activated carbon is taken out and cleaned after naturally cooling to 50 DEG C；First with steaming
Distilled water boils cleaning ten minutes, then boils cleaning 10min with the hydrochloric acid of a concentration of 1mol/L, is finally boiled clearly with distilled water again
Wash 10min；It is baked to as made lightweight pressed active carbon.
The present embodiment potassium carbonate and cotton fiber ratio are 1：0.7, briquetting pressure 20MPa, carbonization-activation temperature are 700
DEG C, prepared activated carbon is plastic, and inner void is very abundant to see Fig. 1；Time floating is up to 14 hours, figure in water
2 be the active product char floated in water, and the adsorptive value of methylene is 185 mg/g.
Embodiment 2
2.875g potassium carbonate is dissolved in 15mL distilled water, solution of potassium carbonate is configured to, it is molten that the cotton fiber of 2g is put into potassium carbonate
In liquid, with glass bar stirring until cotton fiber complete wetting；Then it puts it into 120 DEG C of baking oven, keeps the temperature 1h；It is cooling
Later, it is put into 250 DEG C of Muffle furnace, pyroreaction 1h, at this moment products therefrom is Carbonaceous mesophase；Directly will after reaction
Carbonaceous mesophase substance, which is placed in dry environment, to be cooled to room temperature；Obtained material is used into mortar grinder 10min in dry environment,
Use tabletting machine；Tablet press machine pressure is 20MPa, pressurize 5min；The carbon plate pressed is put into tube furnace, nitrogen is passed through
After 10min, it is 5 DEG C/min that set temperature curve, which be heating rate, is begun to warm up, after rising to 800 DEG C of heat preservation 30min, drop
Warm rate is 5 DEG C/min, is down to 200 DEG C, heating stops, and activated carbon is taken out and cleaned after naturally cooling to 50 DEG C；First with steaming
Distilled water boils cleaning ten minutes, then boils cleaning 10min with the hydrochloric acid of a concentration of 1mol/L, is finally boiled clearly with distilled water again
Wash 10min；It is baked to as made lightweight pressed active carbon.
The present embodiment potassium carbonate and cotton fiber ratio are 1：0.7, briquetting pressure 20MPa, carbonization-activation temperature are 800
DEG C, prepared activated carbon is plastic, and inner void is abundant, can float on the water surface for a long time, up to 13 hours, methylene
Adsorptive value be 410 mg/g.
Embodiment 3
2.875g potassium carbonate is dissolved in 15mL distilled water, solution of potassium carbonate is configured to, it is molten that the cotton fiber of 2g is put into potassium carbonate
In liquid, with glass bar stirring until cotton fiber complete wetting；Then it puts it into 120 DEG C of baking oven, keeps the temperature 1h；It is cooling
Later, it is put into 250 DEG C of Muffle furnace, pyroreaction 1h, at this moment products therefrom is Carbonaceous mesophase；Directly will after reaction
Carbonaceous mesophase substance, which is placed in dry environment, to be cooled to room temperature；Obtained material is used into mortar grinder 10min in dry environment,
Use tabletting machine；Tablet press machine pressure is 20MPa, pressurize 5min；The carbon plate pressed is put into tube furnace, nitrogen is passed through
After 10min, it is 5 DEG C/min that set temperature curve, which be heating rate, is begun to warm up, after rising to 600 DEG C of heat preservation 30min, drop
Warm rate is 5 DEG C/min, is down to 200 DEG C, heating stops, and activated carbon is taken out and cleaned after naturally cooling to 50 DEG C；First with steaming
Distilled water boils cleaning ten minutes, then boils cleaning 10min with the hydrochloric acid of a concentration of 1mol/L, is finally boiled clearly with distilled water again
Wash 10min；It is baked to as made lightweight pressed active carbon.
The present embodiment potassium carbonate and cotton fiber ratio are 1：0.7, briquetting pressure 20MPa, carbonization-activation temperature are 600
DEG C, prepared activated carbon is plastic, and inner void is abundant, can float on the water surface for a long time, up to 20 hours, methylene
Adsorptive value be 160 mg/g.
Embodiment 4
2.875g potassium carbonate is dissolved in 15mL distilled water, solution of potassium carbonate is configured to, it is molten that the cotton fiber of 2g is put into potassium carbonate
In liquid, with glass bar stirring until cotton fiber complete wetting；Then it puts it into 120 DEG C of baking oven, keeps the temperature 1h；It is cooling
Later, it is put into 250 DEG C of Muffle furnace, pyroreaction 1h, at this moment products therefrom is Carbonaceous mesophase；Directly will after reaction
Carbonaceous mesophase substance, which is placed in dry environment, to be cooled to room temperature；Obtained material is used into mortar grinder 10min in dry environment,
Use tabletting machine；Tablet press machine pressure is 10MPa, pressurize 5min；The carbon plate pressed is put into tube furnace, nitrogen is passed through
After 10min, it is 5 DEG C/min that set temperature curve, which be heating rate, is begun to warm up, and rises to 700 DEG C of heat preservation 30min, cooling
Rate is 5 DEG C/min, is down to 200 DEG C, heating stops, and activated carbon is taken out and cleaned after naturally cooling to 50 DEG C；First with distillation
Boiling boiling cleaning ten minutes, then boils cleaning 10min with the hydrochloric acid of a concentration of 1mol/L, finally boils cleaning with distilled water again
10min；It is baked to as made lightweight pressed active carbon.
The present embodiment potassium carbonate and cotton fiber ratio are 1：0.7, briquetting pressure 10MPa, carbonization-activation temperature are 700
DEG C, prepared activated carbon is plastic, and inner void is abundant, can float on the water surface for a long time, up to 15 hours, methylene
Adsorptive value be 180 mg/g.
Embodiment 5
2.875g potassium carbonate is dissolved in 15mL distilled water, solution of potassium carbonate is configured to, it is molten that the cotton fiber of 2g is put into potassium carbonate
In liquid, with glass bar stirring until cotton fiber complete wetting；Then it puts it into 120 DEG C of baking oven, keeps the temperature 1h；It is cooling
Later, it is put into 250 DEG C of Muffle furnace, pyroreaction 1h, at this moment products therefrom is Carbonaceous mesophase；Directly will after reaction
Carbonaceous mesophase substance, which is placed in dry environment, to be cooled to room temperature；Obtained material is used into mortar grinder 10min in dry environment,
Use tabletting machine；Tablet press machine pressure is 25MPa, pressurize 5min；The carbon plate pressed is put into tube furnace, nitrogen is passed through
After 10min, it is 5 DEG C/min that set temperature curve, which be heating rate, is begun to warm up, and rises to 700 DEG C of heat preservation 30min, cooling
Rate is 5 DEG C/min, is down to 200 DEG C, heating stops, and activated carbon is taken out and cleaned after naturally cooling to 50 DEG C；First with distillation
Boiling boiling cleaning ten minutes, then boils cleaning 10min with the hydrochloric acid of a concentration of 1mol/L, finally boils cleaning with distilled water again
10min；It is baked to as made lightweight pressed active carbon.
The present embodiment potassium carbonate and cotton fiber ratio are 1：0.7, briquetting pressure 25MPa, carbonization-activation temperature are 700
DEG C, prepared activated carbon is plastic, and inner void is abundant, can float on the water surface for a long time, up to 20 hours, methylene
Adsorptive value be 300 mg/g.
Embodiment 6
2.875g potassium carbonate is dissolved in 15mL distilled water, solution of potassium carbonate is configured to, the cotton fiber for weighing 1.5g is put into carbonic acid
In potassium solution, with glass bar stirring until cotton fiber complete wetting；Then it puts it into 120 DEG C of baking oven, keeps the temperature 1h；
It after cooling, is put into 250 DEG C of Muffle furnace, pyroreaction 1h, at this moment products therefrom is Carbonaceous mesophase；It is straight after reaction
It connects Carbonaceous mesophase substance being placed in dry environment and be cooled to room temperature, it is 3.1625g to weigh the quality that gained is expected at this time；By institute
It obtains substance and uses mortar grinder 10min in dry environment, take 2g abrasives that dry zinc chloride 0.5g is added, used after complete mixing
Tabletting machine；Tablet press machine pressure is 20MPa, pressurize 5min；The carbon plate pressed is put into tube furnace, nitrogen 10min is passed through
Later, it is 5 DEG C/min that set temperature curve, which be heating rate, is begun to warm up, and 700 DEG C of heat preservation 30min are risen to, and rate of temperature fall is
5 DEG C/min, 200 DEG C are down to, heating stops, and activated carbon is taken out and cleaned after naturally cooling to 50 DEG C；First boiled with distilled water
10min is cleaned, then boils cleaning 10min with the hydrochloric acid of a concentration of 1mol/L, finally boils cleaning 10min with distilled water again；
It is baked to as made lightweight pressed active carbon.
The present embodiment potassium carbonate and cotton fiber ratio are 1：0.5, potassium carbonate and zinc chloride ratio are 1:0.27, briquetting pressure
It it is 700 DEG C for 20MPa, carbonization-activation temperature, prepared activated carbon is plastic, and inner void is abundant, can float on for a long time
On the water surface, up to week age, the adsorptive value of methylene is 240 mg/g.
The potassium carbonate quality for including in 2g abrasives in the present embodiment be 2.875 × 2 3.1625=1.82g of ÷, potassium carbonate with
The ratio between zinc chloride is 1:0.27.
Embodiment 7
2.875g potassium carbonate is dissolved in 15mL distilled water, solution of potassium carbonate is configured to, the cotton fiber for weighing 2g is put into potassium carbonate
In solution, with glass bar stirring until cotton fiber complete wetting；Then it puts it into 120 DEG C of baking oven, keeps the temperature 1h；It is cold
But it after, is put into 250 DEG C of Muffle furnace, pyroreaction 1h, at this moment products therefrom is Carbonaceous mesophase；After reaction directly
Carbonaceous mesophase substance is placed in dry environment and is cooled to room temperature, it is 3.3698g to weigh the quality that gained is expected at this time；By gained
Substance uses mortar grinder 10min in dry environment, takes 2g abrasives that dry zinc chloride 0.5g is added, pressure is used after complete mixing
Piece machine tabletting；Tablet press machine pressure is 20MPa, pressurize 5min；The carbon plate pressed is put into tube furnace, be passed through nitrogen 10min it
Afterwards, it is 5 DEG C/min that set temperature curve, which be heating rate, is begun to warm up, and 700 DEG C of heat preservation 30min, rate of temperature fall 5 are risen to
DEG C/min, 200 DEG C are down to, heating stops, and activated carbon is taken out and cleaned after naturally cooling to 50 DEG C；First boiled clearly with distilled water
10min is washed, then boils cleaning 10min with the hydrochloric acid of a concentration of 1mol/L, finally boils cleaning 10min with distilled water again；It will
It dries as made lightweight pressed active carbon.
The present embodiment potassium carbonate and cotton fiber ratio are 1：0.7, potassium carbonate and zinc chloride ratio are 1:0.30, briquetting pressure
It it is 700 DEG C for 20MPa, carbonization-activation temperature, prepared activated carbon is plastic, and inner void is abundant, can float on for a long time
On the water surface, up to week age, pore structure is shown in Fig. 3, and the adsorptive value of methylene is 320 mg/g.
The potassium carbonate quality for including in 2g abrasives in the present embodiment be 2.875 × 2 3.3698=1.71g of ÷, potassium carbonate with
The ratio between zinc chloride is 1:0.30.
Embodiment 8
2.875g potassium carbonate is dissolved in 15mL distilled water, solution of potassium carbonate is configured to, the cotton fiber for weighing 3.5g respectively is put into
In solution of potassium carbonate, with glass bar stirring until cotton fiber complete wetting；Then it puts it into 120 DEG C of baking oven, protects
Warm 1h；It after cooling, is put into 250 DEG C of Muffle furnace, pyroreaction 1h, at this moment products therefrom is Carbonaceous mesophase；Reaction knot
Directly Carbonaceous mesophase substance is placed in dry environment after beam and is cooled to room temperature, weighing the quality that gained is expected at this time is
4.6528g；Obtained material is used into mortar grinder 10min in dry environment, takes 2g abrasives that dry zinc chloride 0.5g is added,
Tabletting machine is used after complete mixing；Tablet press machine pressure is 20MPa, pressurize 5min；The carbon plate pressed is put into tube furnace, is led to
After entering nitrogen 10min, it is 5 DEG C/min that set temperature curve, which be heating rate, begins to warm up, rises to 700 DEG C of heat preservations
30min, rate of temperature fall are 5 DEG C/min, are down to 200 DEG C, and heating stops, and take out activated carbon and clear after naturally cooling to 50 DEG C
It washes；Cleaning 10min first is boiled with distilled water, then boils cleaning 10min with the hydrochloric acid of a concentration of 1mol/L, finally again with distillation
Boiling boiling cleaning 10min；It is baked to as made lightweight pressed active carbon.
The present embodiment potassium carbonate and cotton fiber ratio are 1：1.2, potassium carbonate and zinc chloride ratio are 1:0.40, briquetting pressure
It it is 700 DEG C for 20MPa, carbonization-activation temperature, prepared activated carbon is plastic, and inner void is abundant, can float on for a long time
On the water surface, up to week age, pore structure is shown in Fig. 4, and the adsorptive value of methylene is 450 mg/g.
The potassium carbonate quality for including in 2g abrasives in the present embodiment be 2.875 × 2 4.6528=1.23g of ÷, potassium carbonate with
The ratio between zinc chloride is 1:0.40.
Comparative example
By providing that the methylenum careuleum adsorptive value of primes is more than 135mg/g in standard GB/T/T 13803.2-1999.Commercially available activity
The methylene blue adsorption value of charcoal is between 100-180mg/g.
Claims (9)
1. a kind of preparation process of lightweight pressed active carbon, it is characterised in that：Include the following steps：
The first step, by cotton fiber, complete wetting 5min dries after complete wetting, taking-up at 120 DEG C in activator solution
It is dry, obtain substance A；
The substance A dried in the first step is placed in Muffle furnace by second step, and 1h is pre-oxidized at 250 DEG C and obtains carbon after cooling
Matter interphase；
Third walks, and after Carbonaceous mesophase is ground to abrasive of the grain size less than 0.075mm, is proportionally added into activation molding and helps
Agent, compression molding, obtains carbon plate after mixing；
4th step, carbon plate is put into tube furnace, is passed through nitrogen, with the heating rate of 5 DEG C/min, is warming up to 600-800 DEG C, charcoal
Change activation 30min；
5th step after charing, after being cooled to 200 DEG C with the rate of temperature fall of 5 DEG C/min, stops heating, naturally cools to 50
After DEG C, it is lightweight pressed active carbon to take out cleaning, drying.
2. a kind of preparation process of lightweight pressed active carbon according to claim 1, it is characterised in that：Described in the first step
The mass ratio of activator and cotton fiber is 1:0.5-1.2.
3. a kind of preparation process of lightweight pressed active carbon according to claim 1, it is characterised in that：Described in the first step
Cotton fiber is waste cotton fiber.
4. a kind of preparation process of lightweight pressed active carbon according to claim 1, it is characterised in that：Described in the first step
Activator is potassium carbonate.
5. a kind of preparation process of lightweight pressed active carbon according to claim 1, it is characterised in that：Described in third step
Activation shaping assistant is zinc chloride, is 1 according to the mass ratio of potassium carbonate and zinc chloride:The ratio of 0-0.4 is added activation molding and helps
Agent.
6. a kind of preparation process of lightweight pressed active carbon according to claim 1, it is characterised in that：Described in third step
Briquetting pressure is 10-25MPa.
7. a kind of preparation process of lightweight pressed active carbon according to claim 1, it is characterised in that：Described in third step
Briquetting pressure is 20-25MPa.
8. a kind of preparation process of lightweight pressed active carbon according to claim 1, it is characterised in that：Described in 4th step
Carbonization-activation temperature is 700 DEG C.
9. a kind of preparation process of lightweight pressed active carbon according to claim 1, it is characterised in that：Described in 5th step
Cleaning process is：10min first is boiled with distilled water, then 10min is boiled with the hydrochloric acid of a concentration of 1mol/L, finally uses distilled water again
Boil 10min.
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| CN107098327A (en) * | 2017-04-24 | 2017-08-29 | 福州大学 | The preparation method and application of biomass porous carbon plate based on bombax cotton |
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2018
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|---|---|---|---|---|
| JPS59199819A (en) * | 1983-04-25 | 1984-11-13 | Heihachiro Shimano | Activated carbon fiber |
| US6187713B1 (en) * | 1996-10-31 | 2001-02-13 | Corning Incorporated | Method of making activated carbon bodies having improved adsorption properties |
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