CN112500188A - Preparation method of porous quartz ceramic filter material - Google Patents
Preparation method of porous quartz ceramic filter material Download PDFInfo
- Publication number
- CN112500188A CN112500188A CN202011514162.9A CN202011514162A CN112500188A CN 112500188 A CN112500188 A CN 112500188A CN 202011514162 A CN202011514162 A CN 202011514162A CN 112500188 A CN112500188 A CN 112500188A
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- Prior art keywords
- filter material
- ceramic filter
- quartz sand
- porous
- quartz ceramic
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 239000000919 ceramic Substances 0.000 title claims abstract description 32
- 239000010453 quartz Substances 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000006004 Quartz sand Substances 0.000 claims abstract description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000008187 granular material Substances 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000011230 binding agent Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 239000003607 modifier Substances 0.000 claims abstract description 4
- 239000003595 mist Substances 0.000 claims abstract 2
- 238000005507 spraying Methods 0.000 claims abstract 2
- 239000000243 solution Substances 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000001354 calcination Methods 0.000 claims description 8
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical group CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 238000004321 preservation Methods 0.000 claims 1
- 239000011148 porous material Substances 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 4
- 230000004907 flux Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000126 substance 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
- B01D39/2093—Ceramic foam
-
- 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
- C04B35/14—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 silica
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/6303—Inorganic additives
- C04B35/6316—Binders based on silicon compounds
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/0045—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by a process involving the formation of a sol or a gel, e.g. sol-gel or precipitation processes
-
- 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
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm
Abstract
The invention discloses a preparation method of a porous quartz ceramic filter material, which comprises the following specific contents: preparing a silane coupling agent ethanol solution by using high-purity quartz sand as a raw material and a silane coupling agent as a surface modifier, spraying the silane coupling agent ethanol solution into the quartz sand stirred at a high speed in a mist form, and stirring and drying to obtain quartz sand with a modified surface; silica sol is used as a binder, quartz sand with modified surface and silica sol water solution are uniformly stirred and granulated to obtain a granulated material with certain granularity; the granules are pressed and formed to prepare a porous quartz ceramic blank, and the blank is calcined at 1100-1300 ℃ to obtain the porous quartz ceramic filter material. The porous quartz ceramic filter material prepared by the invention has high structural strength, is not easy to damage, has more open pores, is uniformly distributed, and has high water flux.
Description
Technical Field
The invention relates to a preparation method of quartz ceramic, in particular to a preparation method of porous quartz ceramic.
Background
The porous ceramic is used as a novel ceramic functional material, combines the excellent properties of the porous material and the ceramic material, and has the advantages of stable chemical property, high-temperature corrosion resistance, long continuous working time, high porosity, good filtering efficiency and the like when being applied to a water treatment process. At present, the forming mode of porous ceramics for water purification treatment in China is mainly slip casting, and various pore-forming agents, clay and other bonding agents are added to increase the water passing amount and improve the strength. The porous ceramic for water treatment prepared by slip casting has the aperture of 0.2-10 mu m and the porosity of approximately 30-65 percent, and although the porous ceramic can efficiently intercept particulate matters and most microorganisms, the water flux is lower, thereby further influencing the service performance.
The porous quartz ceramic filter material prepared by the compression molding process has high structural strength and high open pore rate, and can entrap particulate matters and most microorganisms while improving water flux.
Disclosure of Invention
The invention aims to provide a preparation method of porous quartz ceramic, and solves the problem of controlling the pore structure and distribution of the porous quartz ceramic.
The technical problem to be solved by the invention is realized by the following technical scheme, and the invention relates to a preparation method of a porous quartz ceramic filter material, which comprises the following steps:
(1) preparing a surface modifier solution: the silane coupling agent is vinyl triethoxysilane, the PH is adjusted to 5 by acetic acid, and a silane coupling agent ethanol solution with the mass concentration of 15-35% is prepared;
(2) quartz sand surface modification treatment: the purity of the raw material quartz sand is more than 99.99 percent, the particle size distribution is 100-150 mu m, the silane coupling agent ethanol solution is sprayed into the quartz sand which is stirred at high speed in a fog form, and the quartz sand is continuously stirred and dried to obtain the quartz sand with the modified surface;
(3) and (3) granulation: taking silica sol as a binder, wherein the concentration of the silica sol aqueous solution is 15-30%, uniformly stirring the surface-modified quartz sand and the silica sol aqueous solution, and granulating to obtain granules with the size of 0.3-0.5 mm;
(4) molding and calcining: and pressing the granulated material under a certain pressure to prepare a porous quartz ceramic blank, and drying the blank at 80 ℃ and calcining at 1300 ℃ for 120-180 min to obtain the porous quartz ceramic filter material.
The invention has the beneficial effects that: the high-purity quartz sand is used as a raw material, so that the stability and the safety of the porous quartz ceramic filter material in the using process are ensured; because the surface of the quartz sand is barren, the silane coupling agent vinyl triethoxysilane is adopted for surface modification treatment, so that the dispersibility and uniformity of the quartz sand are improved; the silica sol is used as a binder, is homologous with quartz sand, and is used for granulating the quartz sand, so that the flowability of powder and the stacking density in the compression molding process are improved, and the density and the structural strength of the porous quartz ceramic filter material are improved; the vinyltriethoxysilane and the silica sol also play a role of a pore-forming agent, and the vinyltriethoxysilane is gradually decomposed and volatilized in the calcining process to leave a large number of pores in the quartz ceramic; a large number of micelles in the silica sol generate a large number of network gaps, and the network gaps are adsorbed on the surface of the quartz sand to form a plurality of pores, so that the porosity of the quartz ceramic is improved.
Detailed Description
Specific embodiments of the present invention will now be further described to facilitate further understanding of the present invention by those skilled in the art, and are not to be construed as limiting the claims thereto.
(1) Preparing a surface modifier solution: the silane coupling agent is vinyl triethoxysilane, the PH value is adjusted to 5 by acetic acid, and a silane coupling agent ethanol solution with the mass concentration of 30% is prepared;
(2) quartz sand surface modification treatment: the purity of the raw material quartz sand is more than 99.99 percent, the granularity is 100-150 mu m, the silane coupling agent ethanol solution is sprayed into the quartz sand which is stirred at high speed in a fog form, the stirring is continued for 1 h, and the drying is carried out for 2 h at the temperature of 80 ℃ to obtain the quartz sand after the surface modification;
(3) and (3) granulation: taking silica sol as a binder, wherein the concentration of the silica sol aqueous solution is 20%, uniformly stirring the surface-modified quartz sand and the silica sol aqueous solution, and granulating to obtain a granulated material with the particle size of 0.3-0.5 mm;
(4) molding and calcining: and pressing the granulated material under certain pressure to prepare a porous quartz ceramic blank, drying the blank at 80 ℃, heating to 1100 ℃ at a heating rate of 2 ℃/min, calcining, and preserving heat for 120 min to obtain the porous quartz ceramic filter material.
Claims (5)
1. A preparation method of a porous quartz ceramic filter material comprises the following specific steps:
(1) preparing a surface modifier solution: the silane coupling agent is vinyl triethoxysilane, the PH is adjusted to 5 by acetic acid, and a silane coupling agent ethanol solution with the mass concentration of 15-35% is prepared;
(2) quartz sand surface modification treatment: spraying a silane coupling agent ethanol solution into the quartz sand which is stirred at a high speed in a mist form, stirring and drying to obtain quartz sand with a modified surface;
(3) and (3) granulation: silica sol is used as a binder, quartz sand with modified surface and silica sol water solution are uniformly stirred and granulated to obtain a granulated material with certain granularity;
(4) molding and calcining: and pressing the granulated material under certain pressure to prepare a porous quartz ceramic blank, and drying and calcining the blank to obtain the porous quartz ceramic filter material.
2. The method for preparing a porous quartz ceramic filter material according to claim 1, wherein: the purity of the quartz sand is more than 99.99 percent, and the particle size distribution is 100-150 mu m.
3. The method for preparing a porous quartz ceramic filter material according to claim 1, wherein: the adhesive is silica sol, and the concentration of the silica sol aqueous solution is 15-30%.
4. The method for preparing a porous quartz ceramic filter material according to claim 1, wherein: the grain size of the granulating material is 0.3-0.5 mm.
5. The method for preparing a porous quartz ceramic filter material according to claim 1, wherein: the calcination temperature of the green body is 1100-1300 ℃, the heating rate is 2-4 ℃/min, and the heat preservation time is 120-180 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011514162.9A CN112500188A (en) | 2020-12-21 | 2020-12-21 | Preparation method of porous quartz ceramic filter material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011514162.9A CN112500188A (en) | 2020-12-21 | 2020-12-21 | Preparation method of porous quartz ceramic filter material |
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| Publication Number | Publication Date |
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| CN112500188A true CN112500188A (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011514162.9A Pending CN112500188A (en) | 2020-12-21 | 2020-12-21 | Preparation method of porous quartz ceramic filter material |
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| Country | Link |
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| CN (1) | CN112500188A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115093245A (en) * | 2022-07-11 | 2022-09-23 | 江西现代职业技术学院 | Foaming ceramic plate containing rare earth elements |
| CN115180928A (en) * | 2022-08-09 | 2022-10-14 | 广西碧清源环保投资有限公司 | Porous ceramic blank and preparation method thereof, porous ceramic material and application thereof |
| CN116715530A (en) * | 2023-06-02 | 2023-09-08 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of spinel carbon material with low thermal expansion rate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206053A (en) * | 2011-03-16 | 2011-10-05 | 内蒙古金迈特建筑材料有限责任公司 | Preparation method for surface-modified quartz sand |
| RU2525892C1 (en) * | 2013-07-01 | 2014-08-20 | Открытое акционерное общество "Научно-исследовательский и технологический институт оптического материаловедения Всероссийского научного центра "Государственный оптический институт им. С.И. Вавилова" (ОАО "НИТИОМ ВНЦ "ГОИ им. С.И. Вавилова") | Method of obtaining quartz ceramics |
| CN105669245A (en) * | 2016-01-27 | 2016-06-15 | 清华大学 | Preparation method of porous quartz ceramic |
| CN105837074A (en) * | 2016-03-28 | 2016-08-10 | 吴佳骏 | Novel chemical sand dyeing process |
| CN108101573A (en) * | 2017-12-27 | 2018-06-01 | 清远先导材料有限公司 | Quartzy filter and preparation method thereof |
| CN108821597A (en) * | 2018-07-07 | 2018-11-16 | 河源市极致知管信息科技有限公司 | A kind of glass ceramics and preparation method thereof |
-
2020
- 2020-12-21 CN CN202011514162.9A patent/CN112500188A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206053A (en) * | 2011-03-16 | 2011-10-05 | 内蒙古金迈特建筑材料有限责任公司 | Preparation method for surface-modified quartz sand |
| RU2525892C1 (en) * | 2013-07-01 | 2014-08-20 | Открытое акционерное общество "Научно-исследовательский и технологический институт оптического материаловедения Всероссийского научного центра "Государственный оптический институт им. С.И. Вавилова" (ОАО "НИТИОМ ВНЦ "ГОИ им. С.И. Вавилова") | Method of obtaining quartz ceramics |
| CN105669245A (en) * | 2016-01-27 | 2016-06-15 | 清华大学 | Preparation method of porous quartz ceramic |
| CN105837074A (en) * | 2016-03-28 | 2016-08-10 | 吴佳骏 | Novel chemical sand dyeing process |
| CN108101573A (en) * | 2017-12-27 | 2018-06-01 | 清远先导材料有限公司 | Quartzy filter and preparation method thereof |
| CN108821597A (en) * | 2018-07-07 | 2018-11-16 | 河源市极致知管信息科技有限公司 | A kind of glass ceramics and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 上海市化轻公司第二化工供应部: "《化工产品应用手册 合成材料助剂、食品添加剂》", vol. 1, 31 May 1989, 上海科学技术出版社, pages: 216 - 217 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115093245A (en) * | 2022-07-11 | 2022-09-23 | 江西现代职业技术学院 | Foaming ceramic plate containing rare earth elements |
| CN115180928A (en) * | 2022-08-09 | 2022-10-14 | 广西碧清源环保投资有限公司 | Porous ceramic blank and preparation method thereof, porous ceramic material and application thereof |
| CN116715530A (en) * | 2023-06-02 | 2023-09-08 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of spinel carbon material with low thermal expansion rate |
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