JP5584739B2 - 触媒塗膜を備えた多孔質セラミックフィルタ - Google Patents
触媒塗膜を備えた多孔質セラミックフィルタ Download PDFInfo
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- JP5584739B2 JP5584739B2 JP2012191549A JP2012191549A JP5584739B2 JP 5584739 B2 JP5584739 B2 JP 5584739B2 JP 2012191549 A JP2012191549 A JP 2012191549A JP 2012191549 A JP2012191549 A JP 2012191549A JP 5584739 B2 JP5584739 B2 JP 5584739B2
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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
- B01D39/2072—Other inorganic materials, e.g. ceramics the material being particulate or granular
- B01D39/2075—Other inorganic materials, e.g. ceramics the material being particulate or granular sintered or bonded by inorganic agents
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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
- 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
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- 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
- B01J35/57—Honeycombs
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- 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
- B01J37/0009—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)
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- 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
- B01J37/0215—Coating
- B01J37/0217—Pretreatment of the substrate before coating
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- 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
- B01J37/08—Heat treatment
- B01J37/082—Decomposition and pyrolysis
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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
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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
- C04B38/0093—Other features
- C04B38/0096—Pores with coated inner walls
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
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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
- 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
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/04—Acids, Metal salts or ammonium salts thereof
- C08F20/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
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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
- 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
- C04B2111/00793—Uses not provided for elsewhere in C04B2111/00 as filters or diaphragms
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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
- 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
- C04B2111/0081—Uses not provided for elsewhere in C04B2111/00 as catalysts or catalyst carriers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24149—Honeycomb-like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Catalysts (AREA)
- Filtering Materials (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Description
架橋性ポリマー溶液を下記の二つの手順のうちの1つによって提供する。第1の手順においては、70%(重量)ヘキサメチレンジアミン溶液の4.0gおよび99%(重量)エピクロロヒドリンの7.5gを、3種類のイオネンポリマー溶液2500mlサンプルに混合する。これらポリマー溶液は、どの溶液についても、市販のイオネンポリマー調剤を適当な水で希釈することによって得られる、1.5%(重量)、3%(重量)および6%(重量)のポリマー濃度を有する溶液である。上記市販の調剤は、米国ペンシルバニア州トレヴォース所在のジー・イー・ウォーター・テクノロジーズ社のジー・イー・ベッツ部門から販売されているPC-1195(登録商標)ポリマー溶液であり、約40〜50重量%の約170,000の分子量を有する溶解されたアミン官能性イオネンポリマー固形分を含む。このようにして提供された3種類の架橋性ポリマー溶液を、使用に先立って5日間寝かす。
上述した実施例1のテストに続いて、実施例1のフィルタサンプルと同様の組成を有するが、25〜1000℃の温度範囲に亘って約4.7×10−7/℃のより低い平均線膨張係数(CTE)を有するいくつかのさらに別のチタン酸アルミニウムセラミックサンプルに、上述の実施例のようにポリマーコーティングと下塗りコーティングとを施した。次にこれら下塗りコーティングが施されたサンプルのCTEの増大程度をテストし、そのテスト結果が表2に報告されている。
コージェライトハニカムの原料から多数のセラミックコーティング・サンプルを調製し、それらの両端に交互に栓を施して小型のハニカムフィルタのサンプルを提供する。コージェライトハニカムは、約31セル/cm2のセル密度と、約300μmの壁厚と、約8×10−7/℃の平均線膨張係数(25〜1000℃)を有する。
12 粗大気孔
14 マイクロチャンネル
16 微細気孔
18 ポリマー
18a 架橋されたポリマー
20 触媒塗膜または下塗り塗膜
Claims (5)
- 触媒または触媒下塗り塗膜を多孔質セラミック触媒担体に施す方法であって、
粗大気孔部分、微細気孔部分およびマイクロチャンネル部分を有する気孔組織を備えた多孔質セラミック触媒担体を用意し、
(i)液体ビヒクル、(ii)架橋促進剤、および(iii)5000〜200000の範囲内の分子量を有するアミン官能性イオネンからなる、熱架橋性で熱分解性水溶性炭化水素ポリマー、を含むポリマー溶液または分散液を前記多孔質セラミック触媒担体に施し、
該多孔質セラミック触媒担体を加熱して、施されたポリマー溶液または分散液を乾燥させ、そして前記炭化水素ポリマーを架橋させ、これにより、前記微細気孔部分および前記マイクロチャンネル部分が前記架橋されたポリマーによって優先的に閉塞された、架橋されたポリマーで被覆された担体を提供し、
該架橋されたポリマーで被覆された担体に水性下塗り塗膜または触媒塗膜を施しかつ該触媒塗膜または下塗り塗膜を乾燥させて、触媒塗膜または下塗り塗膜で被覆された担体を提供し、
該触媒塗膜または下塗り塗膜で被覆された担体を加熱して、前記架橋されたポリマーを熱分解して該ポリマーの被覆を除去し、それによって、前記触媒塗膜または下塗り塗膜が前記粗大気孔部分に選択的に分布した、前記触媒塗膜または下塗り塗膜で被覆された担体を得る、
各ステップを有してなる方法。 - 80〜120℃の範囲内の温度に加熱して前記炭化水素ポリマーを架橋させることを特徴とする請求項1項記載の方法。
- 前記架橋促進剤が、エピクロロヒドリンおよびジアミンからなる群より選択されたものであることを特徴とする請求項1または2記載の方法。
- 前記多孔質セラミック触媒担体が、チタン酸アルミニウムおよびコージェライトからなる群より選択された主結晶相を備えたセラミックハニカムであることを特徴とする請求項1から3いずれか1項記載の方法。
- 前記水性下塗り塗膜または触媒塗膜が、アルミナ、アルミナ先駆物質、またはアルミナを含む混合物の分散体を含むことを特徴とする請求項1から4いずれか1項記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/788,946 US7122612B2 (en) | 2004-02-27 | 2004-02-27 | Porous ceramic filters with catalyst coatings |
US10/788,946 | 2004-02-27 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2007500878A Division JP2007526117A (ja) | 2004-02-27 | 2005-02-15 | 触媒塗膜を備えた多孔質セラミックフィルタ |
Publications (2)
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JP2013027868A JP2013027868A (ja) | 2013-02-07 |
JP5584739B2 true JP5584739B2 (ja) | 2014-09-03 |
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ID=34887138
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Application Number | Title | Priority Date | Filing Date |
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JP2007500878A Pending JP2007526117A (ja) | 2004-02-27 | 2005-02-15 | 触媒塗膜を備えた多孔質セラミックフィルタ |
JP2012191549A Expired - Fee Related JP5584739B2 (ja) | 2004-02-27 | 2012-08-31 | 触媒塗膜を備えた多孔質セラミックフィルタ |
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JP2007500878A Pending JP2007526117A (ja) | 2004-02-27 | 2005-02-15 | 触媒塗膜を備えた多孔質セラミックフィルタ |
Country Status (8)
Country | Link |
---|---|
US (2) | US7122612B2 (ja) |
EP (1) | EP1735146B1 (ja) |
JP (2) | JP2007526117A (ja) |
KR (1) | KR101152009B1 (ja) |
CN (1) | CN101098898A (ja) |
AT (1) | ATE463520T1 (ja) |
DE (1) | DE602005020436D1 (ja) |
WO (1) | WO2005091821A2 (ja) |
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EP1735146A4 (en) | 2008-02-13 |
DE602005020436D1 (de) | 2010-05-20 |
KR20070004777A (ko) | 2007-01-09 |
WO2005091821A3 (en) | 2007-03-01 |
EP1735146B1 (en) | 2010-04-07 |
EP1735146A2 (en) | 2006-12-27 |
JP2007526117A (ja) | 2007-09-13 |
US20050191480A1 (en) | 2005-09-01 |
CN101098898A (zh) | 2008-01-02 |
KR101152009B1 (ko) | 2012-07-06 |
US7674498B2 (en) | 2010-03-09 |
WO2005091821A2 (en) | 2005-10-06 |
US7122612B2 (en) | 2006-10-17 |
ATE463520T1 (de) | 2010-04-15 |
US20060270816A1 (en) | 2006-11-30 |
JP2013027868A (ja) | 2013-02-07 |
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