PL375547A1 - Materiał katalityczny na bazie węglika krzemu oraz sposób wytwarzania materiału katalitycznego - Google Patents

Materiał katalityczny na bazie węglika krzemu oraz sposób wytwarzania materiału katalitycznego

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Publication number
PL375547A1
PL375547A1 PL03375547A PL37554703A PL375547A1 PL 375547 A1 PL375547 A1 PL 375547A1 PL 03375547 A PL03375547 A PL 03375547A PL 37554703 A PL37554703 A PL 37554703A PL 375547 A1 PL375547 A1 PL 375547A1
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Poland
Prior art keywords
silicon carbide
catalytic material
catalyst
producing
same
Prior art date
Application number
PL03375547A
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English (en)
Other versions
PL215617B1 (pl
Inventor
Masahiro Furukawa
Kenji Morimoto
Shinji Kawasaki
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Ngk Insulators, Ltd.
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Publication date
Application filed by Ngk Insulators, Ltd. filed Critical Ngk Insulators, Ltd.
Publication of PL375547A1 publication Critical patent/PL375547A1/pl
Publication of PL215617B1 publication Critical patent/PL215617B1/pl

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    • C—CHEMISTRY; METALLURGY
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    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0006—Honeycomb structures
    • C04B38/0012—Honeycomb structures characterised by the material used for sealing or plugging (some of) the channels of the honeycombs
    • 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
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/20—Carbon compounds
    • B01J27/22—Carbides
    • B01J27/224—Silicon carbide
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    • 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
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    • 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
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9422—Processes characterised by a specific catalyst for removing nitrogen oxides by NOx storage or reduction by cyclic switching between lean and rich exhaust gases (LNT, NSC, NSR)
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/02—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the alkali- or alkaline earth metals or beryllium
    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
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    • 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 [3D] monoliths
    • B01J35/57—Honeycombs
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    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
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    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
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    • B01D2255/2022—Potassium
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    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0215—Coating
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
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    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
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    • 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
    • C04B2235/38—Non-oxide ceramic constituents or additives
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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Ceramic Products (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

Wynalazek dotyczy materiału katalitycznego na bazie węglika krzemu, złożonego z porowatego obiektu o danym kształcie, zawierającego pierwszy agregat z wielu cząstek węglika krzemu, będący podstawą nośną, utworzony poprzez spojenie cząstek ze sobą z zachowaniem wielu mikroporów; oraz osadzonego na nim katalizatora, który zawiera metal alkaliczny i/lub metal ziem alkalicznych. Materiał katalityczny charakteryzuje się tym, że katalizator został osadzony przez powlekanie krystaliczną cienką warstwą zawierającą tlenek, utworzoną na co najmniej części powierzchni cząstek węglika krzemu stanowiących pierwszy agregat. W takim materiale katalitycznym, katalizator, którym jest na przykład katalizator okludujący NO<sub>x</sub>, może zachowywać swą aktywność przed długi czas.
PL375547A 2002-10-18 2003-10-15 Material katalityczny na bazie weglika krzemu oraz sposób wytwarzania materialu katalitycznego PL215617B1 (pl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002303923A JP4404538B2 (ja) 2002-10-18 2002-10-18 排ガス浄化用炭化珪素質触媒体及びその製造方法

Publications (2)

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PL375547A1 true PL375547A1 (pl) 2005-11-28
PL215617B1 PL215617B1 (pl) 2014-01-31

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Country Status (7)

Country Link
US (1) US7253134B2 (pl)
EP (1) EP1552882A4 (pl)
JP (1) JP4404538B2 (pl)
KR (1) KR100739409B1 (pl)
AU (1) AU2003273013A1 (pl)
PL (1) PL215617B1 (pl)
WO (1) WO2004035207A1 (pl)

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JP6996914B2 (ja) * 2016-10-24 2022-01-17 日本碍子株式会社 多孔質材料、ハニカム構造体、及び多孔質材料の製造方法
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JP7025969B2 (ja) * 2018-03-26 2022-02-25 日本碍子株式会社 多孔質材料、セル構造体および多孔質材料の製造方法
JP7051524B2 (ja) * 2018-03-26 2022-04-11 日本碍子株式会社 多孔質材料、セル構造体および多孔質材料の製造方法
JP6912412B2 (ja) * 2018-03-30 2021-08-04 日本碍子株式会社 炭化珪素質多孔体及びその製造方法
JP7390272B2 (ja) * 2020-09-30 2023-12-01 日本碍子株式会社 焼成用セッター
JP2022145495A (ja) * 2021-03-19 2022-10-04 日本碍子株式会社 ハニカム構造体および該ハニカム構造体を用いた電気加熱型担体
JP2022149956A (ja) * 2021-03-25 2022-10-07 日本碍子株式会社 炭化珪素質多孔体、ハニカム構造体、電気加熱触媒および炭化珪素質多孔体の製造方法
JP7829094B1 (ja) * 2025-08-28 2026-03-12 日本碍子株式会社 炭化珪素質多孔体の製造方法及び炭化珪素質多孔体

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JP4404538B2 (ja) 2010-01-27
WO2004035207A1 (ja) 2004-04-29
EP1552882A1 (en) 2005-07-13
JP2004136216A (ja) 2004-05-13
AU2003273013A1 (en) 2004-05-04
US7253134B2 (en) 2007-08-07
PL215617B1 (pl) 2014-01-31
KR100739409B1 (ko) 2007-07-18
EP1552882A4 (en) 2009-07-01
KR20050065607A (ko) 2005-06-29
US20060003889A1 (en) 2006-01-05

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