CN114230317A - Preparation process of rice hull-based bauxite ceramic membrane - Google Patents
Preparation process of rice hull-based bauxite ceramic membrane Download PDFInfo
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- CN114230317A CN114230317A CN202210034522.8A CN202210034522A CN114230317A CN 114230317 A CN114230317 A CN 114230317A CN 202210034522 A CN202210034522 A CN 202210034522A CN 114230317 A CN114230317 A CN 114230317A
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- bauxite
- slurry
- silicon dioxide
- ceramic membrane
- activated carbon
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- 229910001570 bauxite Inorganic materials 0.000 title claims abstract description 43
- 239000000919 ceramic Substances 0.000 title claims abstract description 31
- 239000012528 membrane Substances 0.000 title claims abstract description 25
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 24
- 235000009566 rice Nutrition 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims description 9
- 240000007594 Oryza sativa Species 0.000 title abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 62
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000002002 slurry Substances 0.000 claims abstract description 32
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 18
- 238000002156 mixing Methods 0.000 claims abstract description 17
- 239000002131 composite material Substances 0.000 claims abstract description 16
- 238000007731 hot pressing Methods 0.000 claims abstract description 16
- 238000000498 ball milling Methods 0.000 claims abstract description 14
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000007598 dipping method Methods 0.000 claims abstract description 8
- 238000009987 spinning Methods 0.000 claims abstract description 8
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 3
- 241000209094 Oryza Species 0.000 claims description 22
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 238000003763 carbonization Methods 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 239000004965 Silica aerogel Substances 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000010000 carbonizing Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62218—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining ceramic films, e.g. by using temporary supports
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/71—Ceramic products containing macroscopic reinforcing agents
- C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
- C04B35/80—Fibres, filaments, whiskers, platelets, or the like
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6562—Heating rate
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
- C04B2235/661—Multi-step sintering
Abstract
The invention discloses S1, carbonizing rice hulls and cleaning and drying bauxite; s2, mixing and stirring the activated carbon and the bauxite uniformly, mixing the activated carbon and the bauxite for 8 hours by taking absolute ethyl alcohol as a medium, adding an adhesive, and continuously performing ball milling for 2 hours to obtain slurry; s3, dipping the slurry on the nano silicon dioxide, then putting the dipped nano silicon dioxide into a mould, and carrying out low-temperature hot pressing on a flat vulcanizing machine to obtain the aluminum oxycarbide silicon dioxide composite material; s4, ball-milling the composite material to obtain slurry, then putting the slurry in a spinning device to extrude the slurry into a film, and finally putting the film into a hot-pressing furnace to obtain the ceramic film. According to the invention, through a dipping high-pressure process, activated carbon, silicon dioxide and alumina in bauxite are well combined to prepare a composite material, then the composite material is used as a ceramic membrane slurry raw material, after ball milling, an aluminum oxycarbide silica ceramic membrane is successfully prepared through a spinning device, and the addition of carbon improves the adsorbability of the alumina silica ceramic membrane.
Description
Technical Field
The invention relates to the technical field of ceramic membranes, in particular to a preparation process of a rice hull-based bauxite ceramic membrane.
Background
Bauxite is based on its abundant oxidic metal resource. The substrate used for preparing the ceramic membrane is generally zinc oxide, copper oxide and the reaction thereof, and the fiber ceramic membrane is prepared. However, no one has introduced activated carbon and no reaction with activated carbon, and a new ceramic membrane is prepared.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a preparation process of a rice hull-based bauxite ceramic membrane, and solves the problem of the preparation process of a carbon bauxite ceramic membrane.
In order to achieve the purpose, the invention is realized by the following technical scheme: a rice hull-based bauxite ceramic membrane preparation process specifically comprises the following steps:
s1, placing the rice hulls in a tube furnace for high-temperature carbonization to obtain activated carbon containing silicon dioxide, taking a certain amount of bauxite, and cleaning and drying the bauxite;
s2, mixing and stirring the activated carbon and the bauxite uniformly, mixing the activated carbon and the bauxite for 8 hours by taking absolute ethyl alcohol as a medium, adding an adhesive, and continuously performing ball milling for 2 hours to obtain slurry;
s3, dipping the slurry onto the nano silicon dioxide by using carbon fiber winding equipment, putting the dipped nano silicon dioxide into a mold, and carrying out low-temperature hot pressing on a flat vulcanizing machine to obtain the aluminum oxycarbide-silicon dioxide composite material;
and S4, mixing the composite material obtained in the step S3 with absolute ethyl alcohol, performing ball milling to obtain slurry, then putting the slurry in a spinning device, extruding the slurry into a film, and finally putting the film into a hot pressing furnace to obtain the rice hull-based bauxite ceramic film.
Preferably, the mass ratio of the activated carbon to the bauxite in the step S2 is 1: 1.
Preferably, the binder in step S2 is silica aerogel, and the mass ratio of the silica aerogel to the activated carbon is also 1: 1.
Preferably, the low-temperature hot pressing process in the step S3 is to heat up to 350 ℃ at a speed of 10 ℃/min and keep the temperature for 1h, and to maintain the pressure for 1h at a pressure of 3 MPa.
Preferably, the hot-pressing furnace process in the step S3 is raised to 300 ℃ at a speed of 2 ℃/min, and the pressure is maintained at 5MPa for 1 h.
Advantageous effects
The invention provides a preparation process of a rice hull-based bauxite ceramic membrane. Compared with the prior art, the method has the following beneficial effects: according to the invention, through a dipping high-pressure process, activated carbon, silicon dioxide and alumina in bauxite are well combined to prepare a composite material, then the composite material is used as a ceramic membrane slurry raw material, after ball milling, an aluminum oxycarbide silica ceramic membrane is successfully prepared through a spinning device, and carbon is added, so that the adsorbability of the aluminum oxide silica ceramic membrane is improved, and under the condition that rice hull activated carbon is introduced to improve the adsorbability, the ceramic membrane is matched with the silicon dioxide to ensure that the ceramic membrane has better hardness.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides three technical schemes: a rice hull-based bauxite ceramic membrane preparation process specifically comprises the following embodiments:
example 1
S1, placing the rice hulls in a tube furnace for high-temperature carbonization to obtain activated carbon containing silicon dioxide, taking a certain amount of bauxite, and cleaning and drying the bauxite;
s2, mixing 1 part of activated carbon and 1 part of bauxite uniformly, mixing the mixture for 8 hours by taking absolute ethyl alcohol as a medium, adding 1 part of adhesive, and continuously performing ball milling for 2 hours to obtain slurry;
s3, dipping the slurry onto nano silicon dioxide by using carbon fiber winding equipment, then putting the dipped nano silicon dioxide into a mold, and carrying out low-temperature hot pressing on a flat vulcanizing machine, wherein the process comprises the steps of heating to 350 ℃ at a speed of 10 ℃/min, keeping the temperature for 1h, and maintaining the pressure at a pressure of 3MPa for 1h to obtain the aluminum oxycarbide silicon dioxide composite material;
and S4, mixing the composite material obtained in the step S3 with absolute ethyl alcohol, performing ball milling to obtain slurry, then putting the slurry into a spinning device, extruding the slurry into a film, and finally putting the film into a hot-pressing furnace, wherein the process is that the temperature is increased to 300 ℃ at the speed of 2 ℃/min, and the pressure is maintained for 1h at the pressure of 5MPa to obtain the rice hull-based bauxite ceramic film.
Example 2
S1, placing the rice hulls in a tube furnace for high-temperature carbonization to obtain activated carbon containing silicon dioxide, taking a certain amount of bauxite, and cleaning and drying the bauxite;
s2, mixing 1 part of activated carbon and 1 part of bauxite uniformly, mixing the mixture for 8 hours by taking absolute ethyl alcohol as a medium, adding 1 part of adhesive, and continuously performing ball milling for 2 hours to obtain slurry;
s3, dipping the slurry onto nano silicon dioxide by using carbon fiber winding equipment, then putting the dipped nano silicon dioxide into a mold, and carrying out low-temperature hot pressing on a flat vulcanizing machine, wherein the process comprises the steps of heating to 350 ℃ at a speed of 10 ℃/min, keeping the temperature for 1h, and maintaining the pressure at a pressure of 3MPa for 1h to obtain the aluminum oxycarbide silicon dioxide composite material;
and S4, mixing the composite material obtained in the step S3 with absolute ethyl alcohol, performing ball milling to obtain slurry, then putting the slurry into a spinning device, extruding the slurry into a film, and finally putting the film into a hot-pressing furnace, wherein the process is that the temperature is increased to 400 ℃ at the speed of 2 ℃/min, and the pressure is maintained for 1h at the pressure of 5MPa to obtain the rice hull-based bauxite ceramic film.
Example 3
S1, placing the rice hulls in a tube furnace for high-temperature carbonization to obtain activated carbon containing silicon dioxide, taking a certain amount of bauxite, and cleaning and drying the bauxite;
s2, mixing 1 part of activated carbon and 1 part of bauxite uniformly, mixing the mixture for 8 hours by taking absolute ethyl alcohol as a medium, adding 1 part of adhesive, and continuously performing ball milling for 2 hours to obtain slurry;
s3, dipping the slurry onto nano silicon dioxide by using carbon fiber winding equipment, then putting the dipped nano silicon dioxide into a mold, and carrying out low-temperature hot pressing on a flat vulcanizing machine, wherein the process comprises the steps of heating to 350 ℃ at a speed of 10 ℃/min, keeping the temperature for 1h, and maintaining the pressure at a pressure of 3MPa for 1h to obtain the aluminum oxycarbide silicon dioxide composite material;
and S4, mixing the composite material obtained in the step S3 with absolute ethyl alcohol, performing ball milling to obtain slurry, then putting the slurry into a spinning device, extruding the slurry into a film, and finally putting the film into a hot-pressing furnace, wherein the process is that the temperature is increased to 500 ℃ at the speed of 2 ℃/min, and the pressure is maintained for 1h at the pressure of 5MPa to obtain the rice hull-based bauxite ceramic film.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A rice hull-based bauxite ceramic membrane preparation process is characterized by comprising the following steps: the method specifically comprises the following steps:
s1, placing the rice hulls in a tube furnace for high-temperature carbonization to obtain activated carbon containing silicon dioxide, taking a certain amount of bauxite, and cleaning and drying the bauxite;
s2, mixing and stirring the activated carbon and the bauxite uniformly, mixing the activated carbon and the bauxite for 8 hours by taking absolute ethyl alcohol as a medium, adding an adhesive, and continuously performing ball milling for 2 hours to obtain slurry;
s3, dipping the slurry onto the nano silicon dioxide by using carbon fiber winding equipment, putting the dipped nano silicon dioxide into a mold, and carrying out low-temperature hot pressing on a flat vulcanizing machine to obtain the aluminum oxycarbide-silicon dioxide composite material;
and S4, mixing the composite material obtained in the step S3 with absolute ethyl alcohol, performing ball milling to obtain slurry, then putting the slurry in a spinning device, extruding the slurry into a film, and finally putting the film into a hot pressing furnace to obtain the rice hull-based bauxite ceramic film.
2. The process for preparing a rice hull-based bauxite ceramic membrane according to claim 1, which is characterized in that: the mass ratio of the activated carbon to the bauxite in the step S2 is 1: 1.
3. The process for preparing a rice hull-based bauxite ceramic membrane according to claim 1, which is characterized in that: in the step S2, the binder is silica aerogel, and the mass ratio of the silica aerogel to the activated carbon is also 1: 1.
4. The process for preparing a rice hull-based bauxite ceramic membrane according to claim 1, which is characterized in that: the low-temperature hot pressing process in the step S3 is that the temperature is raised to 350 ℃ at the speed of 10 ℃/min, the temperature is kept for 1h, and the pressure is maintained for 1h at the pressure of 3 MPa.
5. The process for preparing a rice hull-based bauxite ceramic membrane according to claim 1, which is characterized in that: the process of the hot-pressing furnace in the step S3 is raised to 600 ℃ at the speed of 2 ℃/min, and the pressure is maintained for 1h at the pressure of 5 MPa.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210034522.8A CN114230317A (en) | 2022-01-13 | 2022-01-13 | Preparation process of rice hull-based bauxite ceramic membrane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210034522.8A CN114230317A (en) | 2022-01-13 | 2022-01-13 | Preparation process of rice hull-based bauxite ceramic membrane |
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| CN114230317A true CN114230317A (en) | 2022-03-25 |
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| CN202210034522.8A Pending CN114230317A (en) | 2022-01-13 | 2022-01-13 | Preparation process of rice hull-based bauxite ceramic membrane |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108046788A (en) * | 2017-12-08 | 2018-05-18 | 刘惠强 | A kind of preparation method of self-cleaning ceramic film |
| CN113105223A (en) * | 2021-04-08 | 2021-07-13 | 大连理工大学 | Preparation and application of whisker-shaped ceramic membrane with low cost and high permeability |
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2022
- 2022-01-13 CN CN202210034522.8A patent/CN114230317A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108046788A (en) * | 2017-12-08 | 2018-05-18 | 刘惠强 | A kind of preparation method of self-cleaning ceramic film |
| CN113105223A (en) * | 2021-04-08 | 2021-07-13 | 大连理工大学 | Preparation and application of whisker-shaped ceramic membrane with low cost and high permeability |
Non-Patent Citations (1)
| Title |
|---|
| 董永春等: "《环境光催化净化功能纺织品关键技术》", 31 August 2020, 中国纺织出版社有限公司 * |
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Application publication date: 20220325 |