CN110451508A - A kind of preparation method of coal base mesoporous activated carbon - Google Patents

A kind of preparation method of coal base mesoporous activated carbon Download PDF

Info

Publication number
CN110451508A
CN110451508A CN201910738788.9A CN201910738788A CN110451508A CN 110451508 A CN110451508 A CN 110451508A CN 201910738788 A CN201910738788 A CN 201910738788A CN 110451508 A CN110451508 A CN 110451508A
Authority
CN
China
Prior art keywords
ball
coal
activated carbon
preparation
mesoporous activated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910738788.9A
Other languages
Chinese (zh)
Other versions
CN110451508B (en
Inventor
张彦龙
高利珍
李俊杰
高卓
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xinjiang Tonglihe Ring Material Technology Co Ltd
Original Assignee
Xinjiang Tonglihe Ring Material Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xinjiang Tonglihe Ring Material Technology Co Ltd filed Critical Xinjiang Tonglihe Ring Material Technology Co Ltd
Priority to CN201910738788.9A priority Critical patent/CN110451508B/en
Publication of CN110451508A publication Critical patent/CN110451508A/en
Application granted granted Critical
Publication of CN110451508B publication Critical patent/CN110451508B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

The invention discloses a kind of preparation methods of coal base mesoporous activated carbon, comprising: crushes raw coal, obtains coal dust, coal dust, activator, ethyl alcohol and ball milling ball are added in planetary ball mill and carry out ball milling, obtains mixed material；The mixed material after ball milling is activated in a nitrogen atmosphere, the material after must activating；Material after activation is added in supercritical device, impregnates in supercritical acetone-water system, then filters, is washed, it is dry, ultrasound in alkaline solution is added in the material after drying and is impregnated；Material filtering after ultrasound is impregnated, it is dry, it is subsequently placed in the glass jar of sealing, is irradiated using electron beam irradiation, is then washed with water, dry, obtain active carbon from coal.The coal base mesoporous activated carbon specific surface area with higher and higher mesoporous rate that preparation method through the invention obtains, while the coal base mesoporous activated carbon is higher to the adsorptive value of methylene blue.

Description

A kind of preparation method of coal base mesoporous activated carbon
Technical field
The invention belongs to active carbon preparation technical fields, and in particular to a kind of preparation method of coal base mesoporous activated carbon.
Background technique
Active carbon is a kind of carbon material adsorbing material with abundant pore structure and huge specific surface area, it has absorption Property strong, good chemical stability, be widely used in industry, agricultural, national defence, traffic, medical and health, environmental protection Equal fields, recently as the increasingly raising of environmental protection requirement, the demand of domestic and international active carbon is increasing, active carbon Development also more and more rapidly.On the one hand the especially development of coaly activated carbon, reason are the reserves ten due to coal resources It is point abundant, cost is relatively low, be on the other hand maturation and progress due to active carbon from coal technology, so that being made using coal as raw material The research of standby active carbon is also more and more prominent.
Mesoporous activated carbon is good to the absorption property of macromolecular particle material, therefore mesoporous activated carbon is in water process, food The fields such as decoloration and catalyst carrier have a wide range of applications.Preparing mesoporous activated carbon using coal has resourceful, preparation The advantages such as excellent effect, but the problems such as the mesopore activated carbon prepared in the prior art is low there are mesoporous, cause with coal for original Material prepares active carbon and does not embody efficient utilization to energy substance coal.
Summary of the invention
It is excellent it is an object of the invention to solve at least the above problems and/or defect, and provide at least to will be described later Point.
In order to realize these purposes and other advantages according to the present invention, a kind of system of coal base mesoporous activated carbon is provided Preparation Method, comprising the following steps:
Step 1: raw coal is crushed, coal dust is obtained, planetary type ball-milling is added in coal dust, activator, ethyl alcohol and ball milling ball Ball milling is carried out in machine, obtains mixed material；
Step 2: be in a nitrogen atmosphere activated the mixed material after ball milling, the material after must activating, In, the temperature-rise period of activation processing are as follows: be warming up to 150~200 DEG C with the speed of 10~15 DEG C/min, keep the temperature 5~10min, so 400~600 DEG C are warming up to the speed of 5~10 DEG C/min afterwards, 10~15min is kept the temperature, then with the speed liter of 1~2 DEG C/min Temperature keeps the temperature 10~15min to 800~900 DEG C, completes activation；
Step 3: the material after activation is added in supercritical device, in temperature be 360 DEG C~380 DEG C and pressure is 10 45~60min is impregnated in the supercritical acetone-water system of~18MPa, is then filtered, and is washed, it is dry, by the material after drying Ultrasound in alkaline solution is added to impregnate；Material filtering after ultrasound is impregnated, it is dry, it is subsequently placed in the glass jar of sealing, adopts It is irradiated with electron beam irradiation, is then washed with water, dried, obtain active carbon from coal.
Preferably, the activator is ammonium nitrate or potassium carbonate.
Preferably, the mass ratio of the coal dust and activator is 1:0.5~1.5；The mass ratio of the coal dust and ethyl alcohol For 1:2~4.
Preferably, the ball milling ball uses silicon carbide material；The ball milling ball includes big ball, middle ball and bead, big ball Bulb diameter is 12mm, and middle ball bulb diameter is 8mm, and bead bulb diameter is 5mm, and big ball, middle ball and pellet quality ratio are 7:5:3.
Preferably, the mass ratio of ball milling ball and coal dust is 15~25:1, and the ball mill mixing time is 3~5h, rotational speed of ball-mill For 200~300r/min.
Preferably, in the step 3, the volume ratio of acetone and water is 3:1 in supercritical acetone-water system.
Preferably, in the step 3, the voltage range that is irradiated: 10~60MeV, digit rate range: 10~ 50mA, irradiation dose range: 200~800kGy.
Preferably, in the step 3, the concentration of alkaline solution is 1~3mol/L；The alkaline solution is vulcanization The aqueous solution of potassium, urea and ethylenediamine；The weight ratio of the potassium sulfide, urea and ethylenediamine is 1:3~5:1.
Preferably, described to entering to be passed through ammonia in alkaline solution during ultrasound is impregnated in the step 3 The Ventilation Rate of ammonia is 120~150mL/min.
Preferably, in the step 3, the frequency that ultrasound is impregnated is 80~120kHz.
The present invention is include at least the following beneficial effects: the coal base mesoporous activated carbon that preparation method through the invention obtains Specific surface area with higher and higher mesoporous rate, while the coal base mesoporous activated carbon is higher to the adsorptive value of methylene blue.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this The research and practice of invention and be understood by the person skilled in the art.
Specific embodiment:
The present invention is described in further detail below, to enable those skilled in the art's refer to the instruction text can Implement accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more The presence or addition of a other elements or combinations thereof.
Embodiment 1:
A kind of preparation method of coal base mesoporous activated carbon, comprising the following steps:
Step 1: raw coal is crushed, coal dust is obtained, planetary type ball-milling is added in coal dust, activator, ethyl alcohol and ball milling ball Ball milling is carried out in machine, obtains mixed material；The activator is ammonium nitrate；The mass ratio of the coal dust and activator is 1: 0.5；The mass ratio of the coal dust and ethyl alcohol is 1:2；The ball milling ball uses silicon carbide material；The ball milling ball include big ball, Middle ball and bead, big ball bulb diameter are 12mm, and middle ball bulb diameter is 8mm, and bead bulb diameter is 5mm, big ball, middle ball and bead Mass ratio is 7:5:3；The mass ratio of ball milling ball and coal dust is 25:1, and the ball mill mixing time is 5h, rotational speed of ball-mill 300r/ min；
Step 2: be in a nitrogen atmosphere activated the mixed material after ball milling, the material after must activating, In, the temperature-rise period of activation processing are as follows: be warming up to 200 DEG C with the speed of 10 DEG C/min, 10min kept the temperature, then with 10 DEG C/min Speed be warming up to 600 DEG C, keep the temperature 15min, be then warming up to 900 DEG C with the speed of 1 DEG C/min, keep the temperature 10min, complete to live Change；Each temperature level can adequately be utilized using gradient increased temperature, keep activation effect more excellent；
Step 3: the material after activation is added in supercritical device, in temperature be 370 DEG C and pressure is the super of 14MPa 45min is impregnated in critical acetone-water system, is then filtered, and is washed, it is dry, the material after drying is added in alkaline solution and is surpassed Sound impregnates；Material filtering after ultrasound is impregnated, it is dry, it is subsequently placed in the glass jar of sealing, using electron beam irradiation It is irradiated, is then washed with water, dried, obtain active carbon from coal；Acetone and water in the supercritical acetone-water system Volume ratio is 3:1；The voltage range irradiated: 20MeV, digit rate range: 15mA, irradiation dose range: 800kGy； The concentration of the alkaline solution is 3mol/L；The alkaline solution is the aqueous solution of potassium sulfide, urea and ethylenediamine；The sulphur The weight ratio for changing potassium, urea and ethylenediamine is 1:3:1；To work by the way of supercritical acetone-water system and electron beam irradiation Property charcoal is handled, and be can be further improved the mesoporous rate of active carbon, is improved its adsorptive value to methylene blue.
After tested, the specific surface area of the coal base mesoporous activated carbon of embodiment preparation is 1758.25m2/ g, mesoporous 98.4%, methylene blue adsorption value 885.58mg/g.
Embodiment 2:
A kind of preparation method of coal base mesoporous activated carbon, comprising the following steps:
Step 1: raw coal is crushed, coal dust is obtained, planetary type ball-milling is added in coal dust, activator, ethyl alcohol and ball milling ball Ball milling is carried out in machine, obtains mixed material；The activator is ammonium nitrate；The mass ratio of the coal dust and activator is 1:1； The mass ratio of the coal dust and ethyl alcohol is 1:3；The ball milling ball uses silicon carbide material；The ball milling ball includes big ball, middle ball And bead, big ball bulb diameter are 12mm, middle ball bulb diameter is 8mm, and bead bulb diameter is 5mm, big ball, middle ball and pellet quality Than for 7:5:3；The mass ratio of ball milling ball and coal dust is 25:1, and the ball mill mixing time is 5h, rotational speed of ball-mill 300r/min；
Step 2: be in a nitrogen atmosphere activated the mixed material after ball milling, the material after must activating, In, the temperature-rise period of activation processing are as follows: be warming up to 150 DEG C with the speed of 15 DEG C/min, 10min kept the temperature, then with 5 DEG C/min Speed be warming up to 600 DEG C, keep the temperature 15min, be then warming up to 850 DEG C with the speed of 2 DEG C/min, keep the temperature 10min, complete to live Change；
Step 3: the material after activation is added in supercritical device, in temperature be 380 DEG C and pressure is the super of 12MPa 60min is impregnated in critical acetone-water system, is then filtered, and is washed, it is dry, the material after drying is added in alkaline solution and is surpassed Sound impregnates；Material filtering after ultrasound is impregnated, it is dry, it is subsequently placed in the glass jar of sealing, using electron beam irradiation It is irradiated, is then washed with water, dried, obtain active carbon from coal；Acetone and water in the supercritical acetone-water system Volume ratio is 3:1；The voltage range irradiated: 40MeV, digit rate range: 20mA, irradiation dose range: 700kGy； The concentration of the alkaline solution is 2mol/L；The alkaline solution is the aqueous solution of potassium sulfide, urea and ethylenediamine；The sulphur The weight ratio for changing potassium, urea and ethylenediamine is 1:5:1.
After tested, the specific surface area of the coal base mesoporous activated carbon of embodiment preparation is 1787.68m2/ g, mesoporous 99.1%, methylene blue adsorption value 892.36mg/g.
Embodiment 3:
A kind of preparation method of coal base mesoporous activated carbon, comprising the following steps:
Step 1: raw coal is crushed, coal dust is obtained, planetary type ball-milling is added in coal dust, activator, ethyl alcohol and ball milling ball Ball milling is carried out in machine, obtains mixed material；The activator is ammonium nitrate；The mass ratio of the coal dust and activator is 1: 1.5；The mass ratio of the coal dust and ethyl alcohol is 1:4；The ball milling ball uses silicon carbide material；The ball milling ball include big ball, Middle ball and bead, big ball bulb diameter are 12mm, and middle ball bulb diameter is 8mm, and bead bulb diameter is 5mm, big ball, middle ball and bead Mass ratio is 7:5:3；The mass ratio of ball milling ball and coal dust is 20:1, and the ball mill mixing time is 4h, rotational speed of ball-mill 250r/ min；
Step 2: be in a nitrogen atmosphere activated the mixed material after ball milling, the material after must activating, In, the temperature-rise period of activation processing are as follows: be warming up to 180 DEG C with the speed of 10 DEG C/min, 10min kept the temperature, then with 5 DEG C/min Speed be warming up to 500 DEG C, keep the temperature 15min, be then warming up to 800 DEG C with the speed of 1 DEG C/min, keep the temperature 10min, complete to live Change；
Step 3: the material after activation is added in supercritical device, in temperature be 380 DEG C and pressure is the super of 12MPa 60min is impregnated in critical acetone-water system, is then filtered, and is washed, it is dry, the material after drying is added in alkaline solution and is surpassed Sound impregnates；Material filtering after ultrasound is impregnated, it is dry, it is subsequently placed in the glass jar of sealing, using electron beam irradiation It is irradiated, is then washed with water, dried, obtain active carbon from coal；Acetone and water in the supercritical acetone-water system Volume ratio is 3:1；The voltage range irradiated: 50MeV, digit rate range: 30mA, irradiation dose range: 600kGy； The concentration of the alkaline solution is 1mol/L；The alkaline solution is the aqueous solution of potassium sulfide, urea and ethylenediamine；The sulphur The weight ratio for changing potassium, urea and ethylenediamine is 1:3:1.
After tested, the specific surface area of the coal base mesoporous activated carbon of embodiment preparation is 1769.35m2/ g, mesoporous 98.6%, methylene blue adsorption value 890.36mg/g.
Embodiment 4:
A kind of preparation method of coal base mesoporous activated carbon, comprising the following steps:
Step 1: raw coal is crushed, coal dust is obtained, planetary type ball-milling is added in coal dust, activator, ethyl alcohol and ball milling ball Ball milling is carried out in machine, obtains mixed material；The activator is ammonium nitrate；The mass ratio of the coal dust and activator is 1:1； The mass ratio of the coal dust and ethyl alcohol is 1:3；The ball milling ball uses silicon carbide material；The ball milling ball includes big ball, middle ball And bead, big ball bulb diameter are 12mm, middle ball bulb diameter is 8mm, and bead bulb diameter is 5mm, big ball, middle ball and pellet quality Than for 7:5:3；The mass ratio of ball milling ball and coal dust is 25:1, and the ball mill mixing time is 5h, rotational speed of ball-mill 300r/min；
Step 2: be in a nitrogen atmosphere activated the mixed material after ball milling, the material after must activating, In, the temperature-rise period of activation processing are as follows: be warming up to 150 DEG C with the speed of 15 DEG C/min, 10min kept the temperature, then with 5 DEG C/min Speed be warming up to 600 DEG C, keep the temperature 15min, be then warming up to 850 DEG C with the speed of 2 DEG C/min, keep the temperature 10min, complete to live Change；
Step 3: the material after activation is added in supercritical device, in temperature be 380 DEG C and pressure is the super of 12MPa 60min is impregnated in critical acetone-water system, is then filtered, and is washed, it is dry, the material after drying is added in alkaline solution and is surpassed Sound impregnates, and to entering to be passed through ammonia in alkaline solution during ultrasound is impregnated, the Ventilation Rate of the ammonia is 120mL/ min；The frequency that ultrasound is impregnated is 120kHz；Material filtering after ultrasound is impregnated, it is dry, it is subsequently placed in the glass jar of sealing In, it is irradiated using electron beam irradiation, is then washed with water, dried, obtain active carbon from coal；Described overcritical third The volume ratio of acetone and water is 3:1 in ketone-aqueous systems；The voltage range irradiated: 40MeV, digit rate range: 20mA, irradiation dose range: 700kGy；The concentration of the alkaline solution is 2mol/L；The alkaline solution is potassium sulfide, urine The aqueous solution of element and ethylenediamine；The weight ratio of the potassium sulfide, urea and ethylenediamine is 1:5:1.
After tested, the specific surface area of the coal base mesoporous activated carbon of embodiment preparation is 1885.38m2/ g, mesoporous 99.6%, methylene blue adsorption value 902.78mg/g.
Embodiment 5:
A kind of preparation method of coal base mesoporous activated carbon, comprising the following steps:
Step 1: raw coal is crushed, coal dust is obtained, planetary type ball-milling is added in coal dust, activator, ethyl alcohol and ball milling ball Ball milling is carried out in machine, obtains mixed material；The activator is ammonium nitrate；The mass ratio of the coal dust and activator is 1: 1.5；The mass ratio of the coal dust and ethyl alcohol is 1:4；The ball milling ball uses silicon carbide material；The ball milling ball include big ball, Middle ball and bead, big ball bulb diameter are 12mm, and middle ball bulb diameter is 8mm, and bead bulb diameter is 5mm, big ball, middle ball and bead Mass ratio is 7:5:3；The mass ratio of ball milling ball and coal dust is 20:1, and the ball mill mixing time is 4h, rotational speed of ball-mill 250r/ min；
Step 2: be in a nitrogen atmosphere activated the mixed material after ball milling, the material after must activating, In, the temperature-rise period of activation processing are as follows: be warming up to 180 DEG C with the speed of 10 DEG C/min, 10min kept the temperature, then with 5 DEG C/min Speed be warming up to 500 DEG C, keep the temperature 15min, be then warming up to 800 DEG C with the speed of 1 DEG C/min, keep the temperature 10min, complete to live Change；
Step 3: the material after activation is added in supercritical device, in temperature be 380 DEG C and pressure is the super of 12MPa 60min is impregnated in critical acetone-water system, is then filtered, and is washed, it is dry, the material after drying is added in alkaline solution and is surpassed Sound impregnates, and to entering to be passed through ammonia in alkaline solution during ultrasound is impregnated, the Ventilation Rate of the ammonia is 150mL/ min；The frequency that ultrasound is impregnated is 100kHz；Material filtering after ultrasound is impregnated, it is dry, it is subsequently placed in the glass jar of sealing In, it is irradiated using electron beam irradiation, is then washed with water, dried, obtain active carbon from coal；Described overcritical third The volume ratio of acetone and water is 3:1 in ketone-aqueous systems；The voltage range irradiated: 50MeV, digit rate range: 30mA, irradiation dose range: 600kGy；The concentration of the alkaline solution is 1mol/L；The alkaline solution is potassium sulfide, urine The aqueous solution of element and ethylenediamine；The weight ratio of the potassium sulfide, urea and ethylenediamine is 1:3:1.
After tested, the specific surface area of the coal base mesoporous activated carbon of embodiment preparation is 1888.75m2/ g, mesoporous 99.7%, methylene blue adsorption value 906.45mg/g.
Although the embodiments of the present invention have been disclosed as above, but its institute not only in the description and the implementation Column use, it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can hold It changes places and realizes other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously It is not limited to specific details.

Claims (10)

1. a kind of preparation method of coal base mesoporous activated carbon, which comprises the following steps:
Step 1: raw coal is crushed, obtain coal dust, by coal dust, activator, ethyl alcohol and ball milling ball be added planetary ball mill in into Row ball milling, obtains mixed material；
Step 2: the mixed material after ball milling is activated in a nitrogen atmosphere, the material after must activating, wherein living Change the temperature-rise period of processing are as follows: be warming up to 150~200 DEG C with the speed of 10~15 DEG C/min, 5~10min kept the temperature, then with 5 The speed of~10 DEG C/min is warming up to 400~600 DEG C, keeps the temperature 10~15min, is then warming up to the speed of 1~2 DEG C/min 800~900 DEG C, 10~15min is kept the temperature, completes activation；
Step 3: the material after activation is added in supercritical device, temperature be 360 DEG C~380 DEG C and pressure be 10~ 45~60min is impregnated in the supercritical acetone-water system of 18MPa, is then filtered, and is washed, it is dry, the material after drying is added Ultrasound is impregnated in alkaline solution；Material filtering after ultrasound is impregnated, it is dry, it is subsequently placed in the glass jar of sealing, using electricity Beamlet irradiation devices are irradiated, and are then washed with water, and drying obtains active carbon from coal.
2. the preparation method of coal base mesoporous activated carbon as described in claim 1, which is characterized in that the activator is ammonium nitrate Or potassium carbonate.
3. the preparation method of coal base mesoporous activated carbon as described in claim 1, which is characterized in that the coal dust and activator Mass ratio is 1:0.5~1.5；The mass ratio of the coal dust and ethyl alcohol is 1:2~4.
4. the preparation method of coal base mesoporous activated carbon as described in claim 1, which is characterized in that the ball milling ball is using carbonization Silicon material；The ball milling ball includes big ball, middle ball and bead, and big ball bulb diameter is 12mm, and middle ball bulb diameter is 8mm, bead ball Diameter is 5mm, and big ball, middle ball and pellet quality ratio are 7:5:3.
5. the preparation method of coal base mesoporous activated carbon as described in claim 1, which is characterized in that the quality of ball milling ball and coal dust Than for 15~25:1, the ball mill mixing time is 3~5h, rotational speed of ball-mill is 200~300r/min.
6. the preparation method of coal base mesoporous activated carbon as described in claim 1, which is characterized in that super to face in the step 3 The volume ratio of acetone and water is 3:1 in boundary's acetone-water system.
7. the preparation method of coal base mesoporous activated carbon as described in claim 1, which is characterized in that in the step 3, carry out The voltage range of irradiation: 10~60MeV, digit rate range: 10~50mA, irradiation dose range: 200~800kGy.
8. the preparation method of coal base mesoporous activated carbon as described in claim 1, which is characterized in that in the step 3, alkalinity The concentration of solution is 1~3mol/L；The alkaline solution is the aqueous solution of potassium sulfide, urea and ethylenediamine；The potassium sulfide, urine The weight ratio of element and ethylenediamine is 1:3~5:1.
9. the preparation method of coal base mesoporous activated carbon as described in claim 1, which is characterized in that in the step 3, super Sound impregnate during to entering to be passed through ammonia in alkaline solution, the Ventilation Rate of the ammonia is 120~150mL/min.
10. the preparation method of coal base mesoporous activated carbon as described in claim 1, which is characterized in that in the step 3, ultrasound The frequency of immersion is 80~120kHz.
CN201910738788.9A 2019-08-12 2019-08-12 Preparation method of coal-based mesoporous activated carbon Active CN110451508B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910738788.9A CN110451508B (en) 2019-08-12 2019-08-12 Preparation method of coal-based mesoporous activated carbon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910738788.9A CN110451508B (en) 2019-08-12 2019-08-12 Preparation method of coal-based mesoporous activated carbon

Publications (2)

Publication Number Publication Date
CN110451508A true CN110451508A (en) 2019-11-15
CN110451508B CN110451508B (en) 2021-06-04

Family

ID=68485900

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910738788.9A Active CN110451508B (en) 2019-08-12 2019-08-12 Preparation method of coal-based mesoporous activated carbon

Country Status (1)

Country Link
CN (1) CN110451508B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112642398A (en) * 2020-12-02 2021-04-13 江西艾斯新材料科技有限公司 Novel honeycomb molecular adsorption material and preparation method thereof
CN112758929A (en) * 2021-02-26 2021-05-07 上海大学材料基因组工程(萍乡)研究院 Waste activated carbon regeneration method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1911795A (en) * 2006-08-24 2007-02-14 中国科学院山西煤炭化学研究所 Method of preparing active carbon using brown coal in supercritical water
CN101695995A (en) * 2009-11-11 2010-04-21 上海交通大学 Carbon nano tube with grafted amine functional groups and preparation method
CN105369588A (en) * 2014-08-07 2016-03-02 天津市技术物理研究所 Preparation method for modifying active carbon fibers by using radiation technology
KR20170141624A (en) * 2017-10-25 2017-12-26 한국원자력연구원 Method for modification of carbon based materials using surfactant and surfactant modified carbon based materials

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1911795A (en) * 2006-08-24 2007-02-14 中国科学院山西煤炭化学研究所 Method of preparing active carbon using brown coal in supercritical water
CN101695995A (en) * 2009-11-11 2010-04-21 上海交通大学 Carbon nano tube with grafted amine functional groups and preparation method
CN105369588A (en) * 2014-08-07 2016-03-02 天津市技术物理研究所 Preparation method for modifying active carbon fibers by using radiation technology
KR20170141624A (en) * 2017-10-25 2017-12-26 한국원자력연구원 Method for modification of carbon based materials using surfactant and surfactant modified carbon based materials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112642398A (en) * 2020-12-02 2021-04-13 江西艾斯新材料科技有限公司 Novel honeycomb molecular adsorption material and preparation method thereof
CN112758929A (en) * 2021-02-26 2021-05-07 上海大学材料基因组工程(萍乡)研究院 Waste activated carbon regeneration method
CN112758929B (en) * 2021-02-26 2023-05-23 上海大学材料基因组工程(萍乡)研究院 Waste activated carbon regeneration method

Also Published As

Publication number Publication date
CN110451508B (en) 2021-06-04

Similar Documents

Publication Publication Date Title
CN104289179B (en) Method for preparing attapulgite/carbon composite adsorbent by one-step carbonization-activation
CN107115843A (en) A kind of preparation method and applications for coming from peanut shell modified activated carbon
CN110451508A (en) A kind of preparation method of coal base mesoporous activated carbon
CN105749892A (en) Preparation method of sea urchin shaped microspheric lanthanum oxycarbonate adsorbent capable of removing phosphorus from water bodies
CN110743497B (en) Preparation method of bionic structure ultra-light carbon aerogel
CN106824069B (en) For handling the preparation method of the rear-earth-doped iron Carbon Materials of arsenic-containing waste water
CN103111266B (en) Preparation method of granular adsorbent for removing antibiotics in water, prepared adsorbent and application
CN106582587A (en) Microalgae-based nitrogenous carbon material used for adsorbing carbon dioxide and preparing method thereof
CN104607228A (en) Preparation method for alpha-Fe2O3 quantum dot/nitrogen-doped graphene composite material
CN104475055A (en) Preparation method of ultralow-concentration carbon dioxide adsorption film material and production thereof
CN106000299A (en) Preparation method of wool activated carbon load type adsorbent
CN113621381B (en) Soil heavy metal pollution barrier layer material and preparation method and application thereof
CN111495342A (en) Composite hydrogel, preparation method and application thereof
CN105080502A (en) Preparation method of wheat straw modified anion adsorbent
CN105369588A (en) Preparation method for modifying active carbon fibers by using radiation technology
CN112023896A (en) Preparation method of nano-silver-based collagen fiber aerogel material for efficiently capturing iodine vapor
CN104759252A (en) A method of preparing porous carbon by adopting spherical zinc oxide as a template and applications of the porous carbon
CN105195099A (en) Preparation method of beta-cyclodextrin modified macroporous amino glucan adsorbent
CN101601991A (en) Remove biomass adsorbent and preparation, application and the renovation process of lead ion in the waste water
CN108097313A (en) A kind of carbonitride/chitosan aeroge composite photo-catalyst and its preparation method and application
CN103755005B (en) Ferric ion reduction method
CN113600144A (en) Preparation method of formaldehyde adsorption material
CN103949207A (en) Coal ash synthetic zeolite based nitrogen and phosphorus removing material as well as preparation and regeneration method thereof
CN105688807A (en) Preparation method of micro-pore type active carbon adsorbed by organic iodine
CN106865545A (en) A kind of preparation method of absorption affinity wood substance grain activated carbon high

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant