CN111302342A - Process for manufacturing super-filtration module by using activated carbon fiber powder and carbonization and activation device - Google Patents
Process for manufacturing super-filtration module by using activated carbon fiber powder and carbonization and activation device Download PDFInfo
- Publication number
- CN111302342A CN111302342A CN202010206226.2A CN202010206226A CN111302342A CN 111302342 A CN111302342 A CN 111302342A CN 202010206226 A CN202010206226 A CN 202010206226A CN 111302342 A CN111302342 A CN 111302342A
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- activated carbon
- super
- wall
- fiber powder
- 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
Links
Images
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
- C01B32/39—Apparatus for the preparation thereof
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 process for manufacturing a super filter module by using activated carbon fiber powder, which comprises the steps of taking the activated carbon fiber powder as a main raw material, simultaneously adding asphalt, carboxymethyl cellulose, water-soluble phenolic resin and water as auxiliary raw materials, and performing extrusion molding in a mold to obtain a super filter module blank; naturally air-drying and drying the blank of the super-filtration module at constant temperature, putting the blank into a carbonization and activation device, carbonizing at constant temperature, activating at constant temperature, and finally cooling and taking out. The super-filtration module prepared by the invention adopts secondary activation treatment, and has the advantages of high specific surface area, strong adsorption capacity, high strength and good formability; meanwhile, the shapes of the composite material are different, so that the composite material meets the requirements of various working conditions and is widely applied in the future.
Description
Technical Field
The invention relates to the technical field of filtration of activated carbon fiber powder, in particular to a process for manufacturing a super-filtration module by using the activated carbon fiber powder and a carbonization and activation device.
Background
The diameter of the activated carbon fiber is generally 5-20 μm, the pore structure is mainly micropore, the mesopore is few, and almost no macropore exists. The activated carbon fiber is typical microporous carbon, and ultrafine particles are combined together in various harbor modes to form rich nanopore space; the size of the spaces is the same order of magnitude as that of the ultrafine particles, so that the material has a large specific surface area and has the characteristics of high adsorption and desorption rate, large adsorption capacity and the like. The activated carbon fiber powder is a powdery activated carbon fiber formed by grinding the activated carbon fiber, has all the characteristics of the activated carbon fiber, and is widely applied to the fields of medical treatment and health, aerospace, home coating, new environment-friendly materials and the like. However, the existing process for manufacturing the super-filtration module by using the activated carbon fiber powder generally does not adopt secondary activation treatment, which causes that the adsorption capacity of the activated carbon is not strong, and only can adsorb impurity molecules in a certain range, causes that some organic molecules are not completely filtered, and generally cannot be made into a module, causes that the strength is not enough, the formability is not good, and causes that the super-filtration module cannot be made into various shapes, and the applicability of the super-filtration module is not high.
Disclosure of Invention
The invention aims to provide a process for manufacturing a super-filtration module by using activated carbon fiber powder and a carbonization and activation device, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
a process for manufacturing a super filter module by using activated carbon fiber powder comprises the following specific steps:
1) crushing and grinding the activated carbon fiber into activated carbon fiber powder with the particle size of 180 meshes and 220 meshes, and sieving for later use;
2) taking activated carbon fiber powder as a main raw material, simultaneously adding asphalt and a first additive into a stirrer, and fully mixing until the color is uniform and no bonded particles exist;
3) dissolving the second additive in water;
4) pouring the water solution of the second additive into the stirrer for secondary mixing until all the components are uniformly mixed;
5) extruding and molding the mixed raw materials in a die into a square shape, a round shape or a fan shape to prepare a blank of the super filter module;
6) air-drying the prepared super-filtration module blank under natural conditions;
7) placing the air-dried super-filtration module blank in an oven, and drying at a constant temperature of 110-;
8) placing the dried super-filtration module blank in a carbonization and activation device, introducing nitrogen for protection, and heating and then carbonizing at constant temperature;
9) introducing an activating agent carbon dioxide gas, heating and then activating at constant temperature;
10) and under the protection of high-purity nitrogen, cooling to 45-55 ℃, and taking out the finished product of the super-filtration module.
Further, the additive I is preferably carboxymethyl cellulose, and the additive II is preferably water-soluble phenolic resin.
Further, the mass ratio of the activated carbon fiber powder, the asphalt, the carboxymethyl cellulose, the water-soluble phenolic resin and the water is 7.5: 1: 1.2: 1.3: 2.
further, in the step 8), the temperature required for constant-temperature carbonization is 300-.
Further, in step 9), the temperature required for constant-temperature activation is 900-.
A carbonization activation device comprises a manufacturing box main body, a heat preservation layer, a heating wire, a separation plate, a nitrogen pipe, a nitrogen valve, a carbon dioxide pipe, a carbon dioxide valve, an air inlet hole, a support, a super filter module, air holes, an exhaust pipe, an adjusting valve and a support, wherein the heat preservation layer is arranged on the inner wall of one side of the manufacturing box main body, the heating wire is arranged on the inner wall of the bottom end of the heat preservation layer, the separation plate is welded and fixed on the inner wall of the two sides of the heating wire by the heat preservation layer, the nitrogen pipe is connected on the outer wall of one side of the bottom end of the separation plate in a penetrating way, one end of the nitrogen pipe is inserted in the manufacturing box main body, the nitrogen valve is fixed on the outer wall of the other end of the nitrogen pipe, the carbon dioxide pipe is connected on the outer wall of the top end, be fixed with the carbon dioxide valve on the other end outer wall of carbon dioxide pipe, the inlet port has been seted up in the distribution on one side outer wall of nitrogen gas pipe and carbon dioxide pipe, welded fastening has the support on the inner wall that the heat preservation is located the division board top, the bleeder vent has been seted up in the distribution on the one side outer wall of division board and support, place on the top outer wall of support and be connected with super filter module, through connection has the blast pipe on the top outer wall of make case main part, the outer wall mounting in one side of blast pipe is fixed with adjusting valve.
Furthermore, the outer wall of the bottom end of the manufacturing box main body is fixedly provided with supports in a distributed welding mode.
Furthermore, the number of the supports is four.
Furthermore, the number of the brackets is three.
Further, the handle of the regulating valve is circular in shape.
Compared with the prior art, the invention has the following beneficial effects:
1) the invention adopts the activated carbon fiber powder as the main raw material, and the activated carbon fiber powder is mainly formed by grinding the leftover materials of the activated carbon fiber, thereby changing waste into valuable and saving resources; 2) the active carbon fiber powder is used as a raw material, the surface area of the active carbon fiber powder reaches more than 1500, the adsorption capacity is greatly improved, and a module made of the active carbon fiber powder has good formability and is convenient to fill; 3) the secondary activation treatment is adopted, so that the specific surface area of the module is higher, and the adsorption capacity is stronger; 4) in the activation process, besides the micropores of the activated carbon fiber powder, a large amount of mesopores and macropores are generated, which is very beneficial to adsorbing macromolecular organic matters; 5) after the module is manufactured, compared with the original activated carbon fiber, the strength is higher, and the formability is good; 6) the super filter modules manufactured by the invention have different shapes, meet the requirements of various working conditions and have wider application in the future.
Drawings
FIG. 1 is a front view of a schematic sectional structure of a carbonization-activation device of the present invention.
FIG. 2 is a side sectional view of the device for activating char.
In the figure: 1. manufacturing a box main body; 2. a heat-insulating layer; 3. an electric heating wire; 4. a separator plate; 5. a nitrogen gas pipe; 6. a nitrogen valve; 7. a carbon dioxide tube; 8. a carbon dioxide valve; 9. an air inlet; 10. a support; 11. a super filter module; 12. air holes are formed; 13. an exhaust pipe; 14. adjusting the valve; 15. and (4) a support.
Detailed Description
Firstly, crushing and grinding activated carbon fiber into activated carbon fiber powder of 180 meshes and 220 meshes, and sieving for later use; then, taking activated carbon fiber powder as a main raw material, simultaneously adding asphalt and additive I into a stirrer, and fully mixing until the color is uniform and no bonding particles exist; dissolving the second additive water-soluble phenolic resin in water; in the two steps, the mass ratio of the activated carbon fiber powder, the asphalt, the carboxymethyl cellulose, the water-soluble phenolic resin and the water is 7.5: 1: 1.2: 1.3: 2.
then, pouring the water solution of the water-soluble phenolic resin of the second additive into a stirrer for secondary mixing until all the components are uniformly mixed; extruding and molding the mixed raw materials in a mold into a square shape, a round shape or a fan shape to prepare a blank body of the super filter module, and extruding and molding in the mold to ensure that a gap exists in the middle of the super filter module, so that the resistance is smaller, and the requirements of various working conditions are met; air-drying the prepared super-filtration module blank under natural conditions; and (4) placing the air-dried super-filtration module blank in an oven, and drying at a constant temperature of 110-130 ℃.
And finally, carbonizing and activating the dried super-filtration module blank in a carbonization and activation device. The secondary activation treatment enables the specific surface area to be higher and the adsorption capacity to be stronger; in the activation process, besides the micropores of the activated carbon fiber powder, a large number of mesopores and macropores are generated, which is very beneficial to adsorbing macromolecular organic matters.
As shown in fig. 1 and 2, the above carbonization activation device comprises a manufacturing box main body 1, a heat preservation layer 2, an electric heating wire 3, a partition plate 4, a nitrogen pipe 5, a nitrogen valve 6, a carbon dioxide pipe 7, a carbon dioxide valve 8, an air inlet 9, a bracket 10, a super filter module 11, an air vent 12, an exhaust pipe 13, an adjusting valve 14 and a support 15, wherein the heat preservation layer 2 is arranged on the inner wall of one side of the manufacturing box main body 1, the electric heating wire 3 is arranged on the inner wall of the bottom end of the heat preservation layer 2, the partition plate 4 is fixedly welded on the inner walls of the heat preservation layer 2 positioned at two sides of the electric heating wire 3, the nitrogen pipe 5 is connected on the outer wall of one side of the bottom end of the partition plate 4 in a penetrating manner, one end of the nitrogen pipe 5 is inserted into the manufacturing box main body 1, the nitrogen valve 6 is fixed on the outer wall of the other end of the nitrogen pipe 5, one end of a carbon dioxide tube 7 is inserted into the manufacturing box main body 1, a carbon dioxide valve 8 is fixed on the outer wall of the other end of the carbon dioxide tube 7, air inlet holes 9 are distributed on the outer walls of one side of a nitrogen tube 5 and the carbon dioxide tube 7, a support 10 is fixedly welded on the inner wall of the heat preservation layer 2, air holes 12 are distributed on the outer walls of one side of the partition plate 4 and the support 10, a super filter module 11 is connected on the outer wall of the top of the support 10, an exhaust pipe 13 is connected on the outer wall of the top of the manufacturing box main body 1 in a penetrating way, and an adjusting valve 14 is fixedly installed on the outer wall of one side of the exhaust pipe; the outer wall of the bottom end of the manufacturing box main body 1 is distributed, welded and fixed with the support 15, so that the integrity of the device is ensured; the number of the supports 15 is four, so that the stability of the device is improved; the number of the brackets 10 is three, so that the activation efficiency of the super filter module 11 is improved; the handle of the regulating valve 14 is round in shape, so that the regulating valve 14 can be conveniently twisted and the exhaust is convenient.
The final carbonization and activation step comprises the following specific steps: starting a carbonization and activation device, placing the dried blank of the super filter module 11 in the manufacturing box main body 1, then opening a nitrogen valve 6 under the condition that a carbon dioxide valve 8 is closed, enabling nitrogen to enter the inside of the heat preservation layer 2 through an air inlet 9 on a nitrogen pipe 5, starting an electric heating wire 3 at the moment, heating to 400 ℃ at the heating rate of 80 ℃/h, then carrying out constant-temperature carbonization for 40min, then opening the carbon dioxide valve 8 while keeping the nitrogen valve 6 in an open state, enabling the carbon dioxide gas of an activating agent to enter the inside of the heat preservation layer 2 through an air vent 12 on a carbon dioxide pipe 7, enabling the inner space of the whole manufacturing box main body 1 to be filled with the carbon dioxide gas, then continuing heating to 1000 ℃ for constant-temperature activation for 20min, and finally opening an adjusting valve 14 to enable the gas in the manufacturing box main body 1 to be exhausted from an exhaust pipe 13, then, taking out a part of heat, cooling the prepared finished product of the super filter module 11 under the protection of high-purity nitrogen, and taking out the super filter module 11 from the interior of the manufacturing box main body 1 when the temperature is cooled to 45-55 ℃ to finish the preparation.
Claims (10)
1. A process for manufacturing a super filter module by using activated carbon fiber powder is characterized by comprising the following specific steps:
1) crushing and grinding the activated carbon fiber into activated carbon fiber powder with the particle size of 180 meshes and 220 meshes, and sieving for later use;
2) taking activated carbon fiber powder as a main raw material, simultaneously adding asphalt and a first additive into a stirrer, and fully mixing until the color is uniform and no bonded particles exist;
3) dissolving the second additive in water;
4) pouring the water solution of the second additive into the stirrer for secondary mixing until all the components are uniformly mixed;
5) extruding and molding the mixed raw materials in a die into a square shape, a round shape or a fan shape to prepare a blank of the super filter module;
6) air-drying the prepared super-filtration module blank under natural conditions;
7) placing the air-dried super-filtration module blank in an oven, and drying at a constant temperature of 110-;
8) placing the dried super-filtration module blank in a carbonization and activation device, introducing nitrogen for protection, and heating and then carbonizing at constant temperature;
9) introducing an activating agent carbon dioxide gas, heating and then activating at constant temperature;
10) and under the protection of high-purity nitrogen, cooling to 45-55 ℃, and taking out the finished product of the super-filtration module.
2. The process for manufacturing a super filter module by using the activated carbon fiber powder as claimed in claim 1, wherein the additive is preferably carboxymethyl cellulose, and the additive is preferably water-soluble phenolic resin.
3. The process for manufacturing the super filter module by using the activated carbon fiber powder as claimed in claim 2, wherein the mass ratio of the activated carbon fiber powder, the asphalt, the carboxymethyl cellulose, the water-soluble phenolic resin and the water is 7.5: 1: 1.2: 1.3: 2.
4. the process for manufacturing a super filter module by using activated carbon fiber powder as claimed in claim 1, wherein the temperature required for constant temperature carbonization in step 8) is 300-400 ℃, and the time is preferably 40 min.
5. The process for manufacturing a super filter module by using activated carbon fiber powder as claimed in claim 1, wherein the temperature required for constant temperature activation in step 9) is 900-1000 ℃, and the time is preferably 20 min.
6. A carbonization activation device comprises a manufacturing box main body (1), a heat preservation layer (2), heating wires (3), a partition board (4), a nitrogen pipe (5), a nitrogen valve (6), a carbon dioxide pipe (7), a carbon dioxide valve (8), an air inlet hole (9), a support (10), a super filter module (11), an air vent (12), an exhaust pipe (13), an adjusting valve (14) and a support (15), and is characterized in that the heat preservation layer (2) is arranged on the inner wall of one side of the manufacturing box main body (1), the heating wires (3) are installed on the inner wall of the bottom end of the heat preservation layer (2), the partition board (4) is welded and fixed on the inner walls of the heat preservation layer (2) positioned at the two sides of the heating wires (3), the nitrogen pipe (5) is connected on the outer wall of one side of the manufacturing box main body (1) positioned at the bottom end of the partition board (4) in a penetrating way, and one end, a nitrogen valve (6) is fixed on the outer wall of the other end of the nitrogen pipe (5), the manufacturing box main body (1) is positioned on the outer wall of the top end of the nitrogen pipe (5) and is connected with a carbon dioxide pipe (7) in a penetrating way, one end of the carbon dioxide pipe (7) is inserted into the manufacturing box main body (1), a carbon dioxide valve (8) is fixed on the outer wall of the other end of the carbon dioxide pipe (7), air inlets (9) are distributed on the outer walls of one side of the nitrogen pipe (5) and the carbon dioxide pipe (7), a support (10) is welded and fixed on the inner wall of the top end of the insulating layer (2) positioned on the inner wall of the top end of the isolation plate (4), air holes (12) are distributed on the outer walls of one side of the isolation plate (4) and the support (10), a super filter module (11) is placed and connected on the outer wall of the top end of the support (, and a regulating valve (14) is fixedly arranged on the outer wall of one side of the exhaust pipe (13).
7. A carbonization and activation device as claimed in claim 6, characterized in that the outer wall of the bottom end of the manufacturing box body (1) is distributed, welded and fixed with supports (15).
8. A charring and activating device according to claim 6, wherein the number of the support (15) is four.
9. A charring and activating device according to claim 6, wherein the number of the brackets (10) is three.
10. A charring and activating device according to claim 6, wherein the handle of the regulating valve (14) is circular in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010206226.2A CN111302342B (en) | 2020-03-23 | 2020-03-23 | Process for manufacturing super-filtration module by using activated carbon fiber powder and carbonization and activation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010206226.2A CN111302342B (en) | 2020-03-23 | 2020-03-23 | Process for manufacturing super-filtration module by using activated carbon fiber powder and carbonization and activation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111302342A true CN111302342A (en) | 2020-06-19 |
| CN111302342B CN111302342B (en) | 2022-12-23 |
Family
ID=71153437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010206226.2A Active CN111302342B (en) | 2020-03-23 | 2020-03-23 | Process for manufacturing super-filtration module by using activated carbon fiber powder and carbonization and activation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111302342B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112973631A (en) * | 2021-02-20 | 2021-06-18 | 上海毅蓝电子科技有限公司 | Preparation method of activated carbon filter element for filtering total organic carbon in electroplating solution |
| CN114471500A (en) * | 2022-03-03 | 2022-05-13 | 瓷彩(山东)环境科技有限公司 | Honeycomb-shaped material activation furnace and material production process |
| CN117550606A (en) * | 2024-01-11 | 2024-02-13 | 山西炭科新材科技股份有限公司 | Oxidization carbonization device for coal-based activated carbon |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4814145A (en) * | 1986-05-29 | 1989-03-21 | Matsushita Electric Industrial Co., Ltd. | Apparatus for carbonizing and activating fiber materials |
| CN1303965A (en) * | 2000-07-21 | 2001-07-18 | 中国科学院山西煤炭化学研究所 | Method for preparing hard block active carbon fibre |
| CN1303966A (en) * | 2000-07-21 | 2001-07-18 | 中国科学院山西煤炭化学研究所 | Method for preparing hard block active carbon fibre |
| CN201372203Y (en) * | 2009-03-27 | 2009-12-30 | 新疆大学 | Device utilizing apricot shells to prepare activated carbons |
| CN103121679A (en) * | 2013-01-28 | 2013-05-29 | 江苏国正新材料科技有限公司 | Production process of high-strength wear-resisting shaped activated carbon |
| CN103539113A (en) * | 2013-10-24 | 2014-01-29 | 大连容大资源循环利用咨询设计有限公司 | Carbonization-activation bilateral reaction furnace for producing active carbon by biomass |
| CN212440619U (en) * | 2020-03-23 | 2021-02-02 | 江苏科净炭纤维有限公司 | Super filter device made of activated carbon fiber powder |
-
2020
- 2020-03-23 CN CN202010206226.2A patent/CN111302342B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4814145A (en) * | 1986-05-29 | 1989-03-21 | Matsushita Electric Industrial Co., Ltd. | Apparatus for carbonizing and activating fiber materials |
| CN1303965A (en) * | 2000-07-21 | 2001-07-18 | 中国科学院山西煤炭化学研究所 | Method for preparing hard block active carbon fibre |
| CN1303966A (en) * | 2000-07-21 | 2001-07-18 | 中国科学院山西煤炭化学研究所 | Method for preparing hard block active carbon fibre |
| CN201372203Y (en) * | 2009-03-27 | 2009-12-30 | 新疆大学 | Device utilizing apricot shells to prepare activated carbons |
| CN103121679A (en) * | 2013-01-28 | 2013-05-29 | 江苏国正新材料科技有限公司 | Production process of high-strength wear-resisting shaped activated carbon |
| CN103539113A (en) * | 2013-10-24 | 2014-01-29 | 大连容大资源循环利用咨询设计有限公司 | Carbonization-activation bilateral reaction furnace for producing active carbon by biomass |
| CN212440619U (en) * | 2020-03-23 | 2021-02-02 | 江苏科净炭纤维有限公司 | Super filter device made of activated carbon fiber powder |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112973631A (en) * | 2021-02-20 | 2021-06-18 | 上海毅蓝电子科技有限公司 | Preparation method of activated carbon filter element for filtering total organic carbon in electroplating solution |
| CN114471500A (en) * | 2022-03-03 | 2022-05-13 | 瓷彩(山东)环境科技有限公司 | Honeycomb-shaped material activation furnace and material production process |
| CN117550606A (en) * | 2024-01-11 | 2024-02-13 | 山西炭科新材科技股份有限公司 | Oxidization carbonization device for coal-based activated carbon |
| CN117550606B (en) * | 2024-01-11 | 2024-04-02 | 山西炭科新材科技股份有限公司 | Oxidization carbonization device for coal-based activated carbon |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111302342B (en) | 2022-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111302342B (en) | Process for manufacturing super-filtration module by using activated carbon fiber powder and carbonization and activation device | |
| CN105056896B (en) | MOFs adsorbent and application thereof | |
| CN107029668B (en) | A kind of honeycomb type molecular sieve-active carbon compound adsorbent, preparation method and applications | |
| CN105413635B (en) | A kind of preparation method of core shell structure metal-organic framework materials | |
| CN106395814B (en) | A kind of preparation method of capacitive deionization device-specific activated carbon electrodes block | |
| CN108609607B (en) | Carbon aerogel with ultrahigh specific surface area and preparation method thereof | |
| CN106006636A (en) | Biomass-based nitrogen-doped porous carbon material, and preparation method and application thereof | |
| CN108854874B (en) | Ultra-pure carbon aerogel with ultra-high specific surface area based on air-activated pore-forming and preparation method thereof | |
| CN105152156B (en) | Preparation technology of high-performance carbon molecular sieve | |
| CN109058662B (en) | Preparation method of silicon dioxide aerogel composite board | |
| CN101961644B (en) | Chloride-carbonaceous skeleton composite adsorbent and preparation method thereof | |
| CN107151014B (en) | Biological porous carbon-based lithium-sulfur battery positive electrode material and preparation method thereof | |
| CN109351327A (en) | A kind of active carbon graphene composite material, preparation method and application | |
| KR20160001279A (en) | Hollow porous carbon particles and their synthetic method | |
| CN110951103A (en) | Carbon fiber reinforced phenolic aerogel composite material, preparation method thereof and carbon fiber reinforced carbon aerogel composite material | |
| CN112791715B (en) | Hydrophobic carbon quantum dot MOFs composite adsorbent and preparation method thereof | |
| CN212440619U (en) | Super filter device made of activated carbon fiber powder | |
| CN101007270B (en) | Composite material of micro-fiber encapsulated active carbon or active carbon catalyst and preparation method thereof | |
| CN108862237B (en) | Ultra-high-specific-surface-area ultra-pure carbon aerogel based on carbon dioxide activation pore-forming and preparation method thereof | |
| CN116639965B (en) | Honeycomb type active carbon with irregular structure and preparation method thereof | |
| US20190062170A1 (en) | Sound-absorbing material particle and preparation method thereof | |
| CN109012612A (en) | A kind of high-performance zeolite composite adsorbing material and its preparation method and application | |
| CN108892531A (en) | A kind of preparation method of porous foam silicon carbide ceramics | |
| CN104005273A (en) | Zeolite molecular sieve supported air filter paper and making method thereof | |
| CN109761236A (en) | A kind of method that microwave-assisted re-activation prepares multistage mesoporous activated carbon |
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 |