GB1465206A - Ceramic-coated structure and process for its preparation - Google Patents
Ceramic-coated structure and process for its preparationInfo
- Publication number
- GB1465206A GB1465206A GB1667874A GB1667874A GB1465206A GB 1465206 A GB1465206 A GB 1465206A GB 1667874 A GB1667874 A GB 1667874A GB 1667874 A GB1667874 A GB 1667874A GB 1465206 A GB1465206 A GB 1465206A
- Authority
- GB
- United Kingdom
- Prior art keywords
- yarn
- assembly
- weight
- yarns
- fibres
- 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.)
- Expired
Links
- 239000000919 ceramic Substances 0.000 title abstract 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 abstract 3
- 239000000395 magnesium oxide Substances 0.000 abstract 3
- 229910004298 SiO 2 Inorganic materials 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 abstract 2
- 238000005524 ceramic coating Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 229910010413 TiO 2 Inorganic materials 0.000 abstract 1
- 229940003214 aluminium chloride Drugs 0.000 abstract 1
- MADFGXYYGXDVDA-UHFFFAOYSA-K aluminum;2-chloroacetate Chemical compound [Al+3].[O-]C(=O)CCl.[O-]C(=O)CCl.[O-]C(=O)CCl MADFGXYYGXDVDA-UHFFFAOYSA-K 0.000 abstract 1
- 239000008199 coating composition Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000007654 immersion Methods 0.000 abstract 1
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 abstract 1
- 235000011285 magnesium acetate Nutrition 0.000 abstract 1
- 239000011654 magnesium acetate Substances 0.000 abstract 1
- 229940069446 magnesium acetate Drugs 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 229910052863 mullite Inorganic materials 0.000 abstract 1
- 239000002243 precursor Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 229910052596 spinel Inorganic materials 0.000 abstract 1
- 239000011029 spinel Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/024—Multiple impregnation or coating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2825—Ceramics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2835—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support fibrous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/10—Fibrous material, e.g. mineral or metallic wool
- F01N2330/101—Fibrous material, e.g. mineral or metallic wool using binders, e.g. to form a permeable mat, paper or the like
- F01N2330/102—Fibrous material, e.g. mineral or metallic wool using binders, e.g. to form a permeable mat, paper or the like fibrous material being fiber reinforced polymer made of plastic matrix reinforced by fine glass or in the form of a loose mass of filaments or fibers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Ceramic Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Knitting Of Fabric (AREA)
- Inorganic Fibers (AREA)
- Woven Fabrics (AREA)
Abstract
1465206 Fluid permeable structure E I DU PONT DE NEMOURS & CO 16 April 1974 16678/74 Heading D1P [Also in Divisions Bl and B2] A fluid-permeable self-supporting refractory support structure comprises a) an assembly of yarns arranged so that a plurality of welldefined apertures extend therethrough, the yarn comprising siliceous fibres containing 40-80% by weight of SiO 2 and at least 18% by weight Al 2 O 3 and having a softening point of 750-1300C, the yarn constituting 20-85% by weight of the structure, and b) 15-80% by weight of the structure of a ceramic coating having a melting point of 1000-2800C and a porosity of 20-70% which at least partially surrounds the yarn but does not close the apertures. The yarn assembly may be formed from woven or knitted fibres or may be a random arrangement of bulked or textured yarns. When of high density, the assembly may be apertured by needling. It may particularly comprise a number of layers of spaced-apart, parallel rows of yarn, the yarns in different layers crossing to define square- or diamond-shaped apertures and may be in the form of a tube comprising spaced helical convolutions of yarn. The fibres may particularly have a composition of 61-66% SiO 2 , 20-26% Al 2 O 3 and 9-15% MgO. The ceramic coating may be applied to the yarns before or after assembly as an aqueous dispersion or solution by immersion, roller, spraying or passage of the yarn through a die. The coating composition may comprise one or more oxides or oxide compounds (alumina, magnesia, silica, mullite, spinel) or precursors therefor (alumina hydrate, basic aluminium chloroacetate, aluminium chloride, magnesium acetate), and preferably comprises at least 40%Al 2 O 3 together with BaO, CaO, MgO, ZrO 2 or TiO 2 . Additional applications of the ceramic composition may be made after drying and heating of the initially coated product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1667874A GB1465206A (en) | 1974-04-16 | 1974-04-16 | Ceramic-coated structure and process for its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1667874A GB1465206A (en) | 1974-04-16 | 1974-04-16 | Ceramic-coated structure and process for its preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1465206A true GB1465206A (en) | 1977-02-23 |
Family
ID=10081677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1667874A Expired GB1465206A (en) | 1974-04-16 | 1974-04-16 | Ceramic-coated structure and process for its preparation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1465206A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0142722A2 (en) * | 1983-11-19 | 1985-05-29 | Wilfried Seitz | Catalyst body for exhaust gas catalysts for combustion engines, and process for its manufacture |
-
1974
- 1974-04-16 GB GB1667874A patent/GB1465206A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0142722A2 (en) * | 1983-11-19 | 1985-05-29 | Wilfried Seitz | Catalyst body for exhaust gas catalysts for combustion engines, and process for its manufacture |
| EP0142722A3 (en) * | 1983-11-19 | 1987-11-25 | Wilfried Seitz | Catalyst body for exhaust gas catalysts for combustion engines, and process for its manufacture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |