WO2006006422A1 - セラミック多孔体の製造方法 - Google Patents
セラミック多孔体の製造方法 Download PDFInfo
- Publication number
- WO2006006422A1 WO2006006422A1 PCT/JP2005/012101 JP2005012101W WO2006006422A1 WO 2006006422 A1 WO2006006422 A1 WO 2006006422A1 JP 2005012101 W JP2005012101 W JP 2005012101W WO 2006006422 A1 WO2006006422 A1 WO 2006006422A1
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- WO
- WIPO (PCT)
- Prior art keywords
- particles
- ceramic
- producing
- silica
- porous body
- 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.)
- Ceased
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- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C14/00—Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix
- C03C14/004—Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix the non-glass component being in the form of particles or flakes
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- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/078—Glass compositions containing silica with 40% to 90% silica, by weight containing an oxide of a divalent metal, e.g. an oxide of zinc
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- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
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- 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
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
- C04B2235/9684—Oxidation resistance
-
- 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
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
- C04B2235/9692—Acid, alkali or halogen resistance
Definitions
- the present invention relates to a ceramic porous body used for a filter for filtering a fluid such as liquid or gas.
- Ceramic filters are excellent in physical strength, durability, corrosion resistance, etc., so that they are suspended in liquids and gases in a wide range of fields such as water treatment, exhaust gas treatment, and pharmaceutical / food fields. It is used to remove bacteria and dust.
- the ceramic filter uses a porous ceramic body formed by bonding ceramic particles as an aggregate with a glassy binder as the base material, filtration membrane, or intermediate membrane for forming the filtration membrane. Has been.
- Patent Document 1 A method of mixing and calcining is disclosed (see Patent Document 1).
- the SiO component of the silica sol reacts with the glass frit at a temperature at which the glass frit softens.
- the chemical composition of the glass used as the binder is made rich in SiO, and the resulting ceramic
- the pores show excellent corrosion resistance.
- Patent Document 1 Japanese Patent Laid-Open No. 2003-238257
- the present invention has been made in view of such conventional circumstances, and the purpose thereof is to produce a porous ceramic body having excellent corrosion resistance against acids and alkalis. In addition, it is intended to provide a method for producing a ceramic porous body, since defects such as distortion and cracks hardly occur during production.
- the ceramic porous body to be sintered is obtained by mixing ceramic particles serving as aggregate particles, glass frit, and silica particles, forming the mixture into a predetermined shape, drying the obtained formed body, and then firing.
- a manufacturing method (first manufacturing method) is provided.
- ceramic particles to be aggregate particles, glass frit, silica particles, and silica sol are mixed, formed into a predetermined shape, and the obtained molded body is dried and then fired.
- a method for producing a ceramic porous body (second production method) is provided.
- sica particles refers to silica particles having a particle diameter of 200 nm or more.
- sica sol refers to a dispersion of silica fine particles having a particle size of lOOnm or less in water.
- a ceramic porous body having excellent corrosion resistance against acids and alkalis can be produced, and defects such as distortion and cracks are unlikely to occur during production.
- ceramic particles to be aggregate particles, glass frit, and silica particles are mixed, formed into a predetermined shape, and the obtained molded body is dried. After that, it is fired.
- ceramic particles to be aggregate particles, glass frit, silica particles, and silica sol are mixed and molded into a predetermined shape, and the obtained molded body is dried. After that, it is fired.
- the present invention like the above-described prior art, uses a glass-free glass to make the chemical composition of the binder that binds the ceramic particles to be aggregate particles the SiO-rich glass composition.
- the silica component-containing material In addition to the silica component-containing material, the silica component-containing material is mixed. Thus, instead of silica sol, which tends to cause distortion and cracks due to large firing shrinkage, silica particles having small firing shrinkage are used in combination with silica sol. Therefore, the ceramic porous body obtained by the present invention has high corrosion resistance because the chemical composition of the binder is SiO-rich.
- the glass serving as a binder is softened and ceramic particles are formed in the process of firing the molded body. Crosslink between them to bond ceramic particles together. Therefore, in order to obtain a high bond strength, a firing temperature sufficient for the glass to soften and deform is required.
- silica sol is used as a silica component-containing material as described above, the particle size of the silica force is as small as lOOnm or less. Therefore, in the firing process, it aggregates and sinters before reacting with glass. It shrinks greatly and causes defects such as distortion and cracks.
- silica particles are used as the silica component-containing material as in the present invention, the particle diameter is large, so that the glass shrinks even when heated at a high temperature necessary to soften the glass. There are few.
- the first production method of the present invention uses only silica particles as the silica component-containing material, whereas the second production method uses silica particles and silica sol as the silica component-containing material. This is because the second manufacturing method prevents the defects due to the above-described firing shrinkage, and at the same time, enjoys the following advantages obtained by using silica sol.
- the dried molded body exhibits water resistance.
- the ceramic porous body obtained according to the present invention is to be used as an intermediate film disposed between a base material of a ceramic filter and a filtration membrane, for molding in which silica sol is mixed on the surface of the porous base material.
- the intermediate film is formed (film formation) from the raw material (intermediate film slurry) and dried
- the dried compact exhibits water resistance due to fineness and agglomeration of particles. Almost lose shape.
- the membrane is used as an intermediate membrane, it is possible to form a filtration membrane on the surface of the intermediate membrane using the slurry for the filtration membrane without drying and firing. In It is possible to reduce the number of firings.
- silica sol since the effect of imparting water resistance by such a silica sol can be obtained by mixing a small amount of silica sol, the mixing of raw materials in the second production method is performed with respect to 100 parts by mass of ceramic particles. It is preferable to mix 10 to 40 parts by mass of frit, 5 to 20 parts by mass of silica particles, and silica sol as SiO in an amount of 6 parts by mass or less. On the other hand, silica sol
- the mixing of the raw materials in the first production method not added is preferably performed by mixing 10 to 40 parts by weight of glass frit and 5 to 20 parts by weight of silica particles with respect to 100 parts by weight of ceramic particles.
- the silica sol exceeds 6 parts by mass, the shrinkage due to firing becomes large, and the effect of suppressing defects accompanying firing shrinkage such as strain and cracks is reduced.
- the glass frit when the glass frit is less than 10 parts by mass, the bonding force for bonding the ceramic particles is weakened, and when it exceeds 40 parts by mass, the pores are reduced and the pores are reduced. The body's permeability (breathability) is reduced. If the amount of silica particles is less than 5 parts by mass, the effect of improving the corrosion resistance of the binder is difficult to obtain.
- the composition of the glass frit used in the first production method is the composition when SiO contained in the silica particles mixed together with the glass frit (that is, the maximum) is obtained.
- composition of the binder that finally binds the ceramic particles Force Li 0, Na 0, K 0, MgO, Ca
- composition of the glass frit used in the second production method is that silica particles mixed together and SiO contained in the silica sol are added to the glass frit.
- composition ie, the composition of the binder that ultimately binds the ceramic particles
- the balance is SiO and inevitable impurities.
- the corrosion resistance becomes insufficient when the total content of the plurality of types of metal oxides exceeds 20 mol%, and relatively less than 5 mol%.
- alkaline earth metal oxides such as MgO, CaO, SrO, and BaO are covered to suppress elution of glass components in the acid solution.
- MgO and CaO are highly effective in improving corrosion resistance, so it is preferable to include at least one of these! /.
- the genus oxides preferably have a maximum content of less than twice the minimum (molar ratio), especially when the content of these alkali metal oxides is equimolar. Moreover, the elution of glass components in the acid solution is suppressed by the mixed alkali effect, and the corrosion resistance is improved.
- the total amount of either one or both of ZrO and TiO is 3mo.
- the skeleton of the glass is strengthened, elution of the glass components in the alkaline solution is suppressed, and the corrosion resistance is improved. Even if the content is too large, the crystal phase is excessively precipitated without vitrification, so the upper limit is preferably about 12 mol%.
- the ceramic particles used as the aggregate particles include alumina particles, titer particles, mullite particles, spinel particles, zircon particles, silicon carbide particles, Examples thereof include, but are not limited to, silicon nitride particles, and the particle size can be arbitrarily selected depending on the application.
- alumina particles having an average particle size of about 3 ⁇ m can be preferably used.
- the shape of the molded body to be molded and the molding method are not particularly limited.
- the ceramic porous body obtained according to the present invention is used as an intermediate layer of the ceramic filter as described above, an intermediate layer slurry containing the above components is used, and a porous substrate is formed by a filtration film forming method. It can be formed (formed) in layers on the surface of the material.
- the molded body molded into a predetermined shape is dried and then fired at a firing temperature necessary for the glass frit to soften and deform.
- ceramic particles are bonded by a reaction product of glass frit and silica particles in the first manufacturing method, and by a reaction product of glass frit, silica particles, and silica sol in the second manufacturing method. It is preferable to be in a state.
- Alumina particles having an average particle size of 3 ⁇ m to be aggregate particles, glass frits a and b having an average particle size of 0.8 ⁇ m and the composition shown in Table 1 below, and silica having a particle size of 200 to 300 nm Particles and silica sol with a silica solid content concentration of 30% and a particle diameter of 8 to L lnm are mixed by adding water in the proportions shown in Table 2 below, and a slurry is prepared by adding a dispersant and a filtration resistance agent. did.
- a porous alumina flat plate having an average pore diameter of 10 m, an outer diameter of 30 mm, and a thickness of 3 mm measured by a mercury intrusion method is used as a substrate for forming a ceramic film (ceramic porous body film).
- a film was formed on the alumina flat plate by the filtration film forming method using the slurry. The filtration film formation time was adjusted so that the film thickness was 150 / z m. After drying this film, it was fired at 950 ° C for 1 hour in an electric furnace in an air atmosphere at a temperature increase / decrease rate of 100 ° CZ, and the resulting ceramic film was examined for cracks, It was subjected to a corrosion resistance test.
- the composition of the binding material binding the ceramic particles of the obtained ceramic film was obtained by calculation from the composition of the glass frit and the mixed amount of the glass frit, silica particles, and silica sol.
- Examples 1 to 6 using force sol show corrosion resistance equivalent to or better than Comparative Examples 1 to 6 using only silica sol, and at the same time, cracks observed in all ceramic films are completely generated in Comparative Example I was helping.
- the present invention can be suitably used as a method for producing a ceramic porous body used for, for example, a filter for filtering a fluid such as liquid or gas.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Composite Materials (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Filtering Materials (AREA)
- Glass Compositions (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006528817A JP5118345B2 (ja) | 2004-07-13 | 2005-06-30 | セラミック多孔体の製造方法 |
| US11/631,973 US20070210493A1 (en) | 2004-07-13 | 2005-06-30 | Method for Producing Ceramic Porous Article |
| EP05765275A EP1785407A4 (en) | 2004-07-13 | 2005-06-30 | PROCESS FOR THE MANUFACTURE OF A POROUS CERAMIC ARTICLE |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004205523 | 2004-07-13 | ||
| JP2004-205523 | 2004-07-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006006422A1 true WO2006006422A1 (ja) | 2006-01-19 |
Family
ID=35783765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/012101 Ceased WO2006006422A1 (ja) | 2004-07-13 | 2005-06-30 | セラミック多孔体の製造方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20070210493A1 (ja) |
| EP (1) | EP1785407A4 (ja) |
| JP (1) | JP5118345B2 (ja) |
| KR (1) | KR100848066B1 (ja) |
| CN (1) | CN100545131C (ja) |
| WO (1) | WO2006006422A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010228949A (ja) * | 2009-03-26 | 2010-10-14 | Ngk Insulators Ltd | セラミック多孔体及びその製造方法 |
| JP2011162426A (ja) * | 2010-02-15 | 2011-08-25 | Ikebukuro Horo Kogyo Kk | グラスライニング組成物 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011010189A1 (en) | 2009-07-23 | 2011-01-27 | Didier Nimal | Biomedical device, method for manufacturing the same and use thereof |
| US9889012B2 (en) | 2009-07-23 | 2018-02-13 | Didier NIMAL | Biomedical device, method for manufacturing the same and use thereof |
| JP6609547B2 (ja) * | 2014-03-31 | 2019-11-20 | 日本碍子株式会社 | モノリス型分離膜構造体 |
| IT201700040155A1 (it) | 2017-04-11 | 2018-10-11 | Luca Toncelli | Procedimento per la realizzazione di manufatti in forma di lastra o blocco con un legante induribile, e manufatti così ottenuti |
| EP3609854A1 (en) * | 2017-04-11 | 2020-02-19 | Luca Toncelli | Method for manufacturing articles in the form of a slab or block with a hardening binder, and articles thus obtained |
| JP7052011B2 (ja) * | 2018-03-30 | 2022-04-11 | 日本碍子株式会社 | セラミック支持体、ゼオライト膜複合体、ゼオライト膜複合体の製造方法および分離方法 |
| CN115894072B (zh) * | 2022-12-29 | 2024-03-08 | 江苏省宜兴非金属化工机械厂有限公司 | 一种耐腐蚀陶瓷过滤板及其制备方法 |
| CN118184385A (zh) * | 2024-03-06 | 2024-06-14 | 爱奇迹创造有限公司 | 多孔陶瓷及其制备方法和雾化装置 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02504124A (ja) * | 1988-05-24 | 1990-11-29 | セラメム・コーポレーション | 熱反応性無機結合剤を有する多孔質で無機質の膜体の製法 |
| JP2003238257A (ja) * | 2001-12-07 | 2003-08-27 | Ngk Insulators Ltd | セラミック多孔体及びその結合材に使用するガラスの製造方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5120576A (en) * | 1988-05-24 | 1992-06-09 | Ceramem Separations Limited Partnership | Impregnating porous inorganic membrane with reactive inorganic binder |
| JP2002144720A (ja) * | 2000-08-28 | 2002-05-22 | Konica Corp | インクジェット記録用紙 |
| DE10114484C2 (de) * | 2001-03-24 | 2003-10-16 | Heraeus Quarzglas | Verfahren für die Herstellung eines Komposit-Werkstoffs mit einem SiO¶2¶-Gehalt von mindestens 99 Gew.-%, und Verwendung des nach dem Verfahren erhaltenen Komposit-Werkstoffs |
| DE10152993A1 (de) * | 2001-10-26 | 2003-05-08 | Bayer Ag | Zusammensetzung für das chemisch-mechanische Polieren von Metall- und Metall/Dielektrikastrukturen mit hoher Selektivität |
| US20030185725A1 (en) * | 2002-03-29 | 2003-10-02 | Mituru Mutou | Holding material for catalytic converter |
| JP2004018317A (ja) * | 2002-06-17 | 2004-01-22 | Nippon Steel Chem Co Ltd | 透明合成石英ガラスの製造方法 |
| JP2005247605A (ja) * | 2004-03-02 | 2005-09-15 | Ngk Insulators Ltd | セラミック多孔質体及びその製造方法 |
-
2005
- 2005-06-30 KR KR1020077002464A patent/KR100848066B1/ko not_active Expired - Fee Related
- 2005-06-30 US US11/631,973 patent/US20070210493A1/en not_active Abandoned
- 2005-06-30 EP EP05765275A patent/EP1785407A4/en not_active Withdrawn
- 2005-06-30 WO PCT/JP2005/012101 patent/WO2006006422A1/ja not_active Ceased
- 2005-06-30 JP JP2006528817A patent/JP5118345B2/ja not_active Expired - Lifetime
- 2005-06-30 CN CNB2005800234357A patent/CN100545131C/zh not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02504124A (ja) * | 1988-05-24 | 1990-11-29 | セラメム・コーポレーション | 熱反応性無機結合剤を有する多孔質で無機質の膜体の製法 |
| JP2003238257A (ja) * | 2001-12-07 | 2003-08-27 | Ngk Insulators Ltd | セラミック多孔体及びその結合材に使用するガラスの製造方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1785407A4 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010228949A (ja) * | 2009-03-26 | 2010-10-14 | Ngk Insulators Ltd | セラミック多孔体及びその製造方法 |
| JP2011162426A (ja) * | 2010-02-15 | 2011-08-25 | Ikebukuro Horo Kogyo Kk | グラスライニング組成物 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1984856A (zh) | 2007-06-20 |
| KR100848066B1 (ko) | 2008-07-23 |
| CN100545131C (zh) | 2009-09-30 |
| KR20070039933A (ko) | 2007-04-13 |
| JP5118345B2 (ja) | 2013-01-16 |
| EP1785407A4 (en) | 2009-12-09 |
| US20070210493A1 (en) | 2007-09-13 |
| JPWO2006006422A1 (ja) | 2008-04-24 |
| EP1785407A1 (en) | 2007-05-16 |
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