JP2010527878A - 変動する焼結安定性を有する二酸化チタン - Google Patents
変動する焼結安定性を有する二酸化チタン Download PDFInfo
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- JP2010527878A JP2010527878A JP2010508762A JP2010508762A JP2010527878A JP 2010527878 A JP2010527878 A JP 2010527878A JP 2010508762 A JP2010508762 A JP 2010508762A JP 2010508762 A JP2010508762 A JP 2010508762A JP 2010527878 A JP2010527878 A JP 2010527878A
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- Prior art keywords
- titanium dioxide
- air
- surface area
- dioxide powder
- bet surface
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 37
- 238000005245 sintering Methods 0.000 title description 7
- 239000000843 powder Substances 0.000 claims abstract description 32
- 239000003570 air Substances 0.000 claims abstract description 28
- 239000001257 hydrogen Substances 0.000 claims abstract description 15
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000001301 oxygen Substances 0.000 claims abstract description 12
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims abstract description 10
- 239000011164 primary particle Substances 0.000 claims abstract description 8
- 239000003054 catalyst Substances 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims abstract description 6
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 4
- 239000007787 solid Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000007062 hydrolysis Effects 0.000 description 8
- 238000006460 hydrolysis reaction Methods 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000000197 pyrolysis Methods 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 101710134784 Agnoprotein Proteins 0.000 description 1
- 101100293222 Arabidopsis thaliana XI-K gene Proteins 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
Classifications
-
- 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
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
- C04B35/62665—Flame, plasma or melting treatment
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- B01J35/30—
-
- B01J35/613—
-
- 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
- B01J37/0238—Impregnation, coating or precipitation via the gaseous phase-sublimation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/07—Producing by vapour phase processes, e.g. halide oxidation
-
- 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
- B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
- B01J37/349—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of flames, plasmas or lasers
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/50—Agglomerated particles
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/11—Powder tap density
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
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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
- 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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
-
- 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
- C04B2235/5409—Particle size related information expressed by specific surface values
-
- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
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- Chemical & Material Sciences (AREA)
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- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Thermal Sciences (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Catalysts (AREA)
Abstract
Description
TiCl4+O2−>TiO2+2Cl2(反応式1a)
TiCl4+2H2O−>TiO2+4HCl(反応式1b)
− 四塩化チタン蒸気、及びそれとは別に、水素、空気又は酸素富化させた空気を、混合チャンバー中に導入し、
− 続いて、四塩化チタン蒸気、水素及び一次空気の混合物をバーナーで点火し、そしてその火炎を、反応チャンバー中で燃焼し、
− 続いて、その固体を、ガス状物質から分離し、
− その際、
70〜100m2/gのBET表面積及び10%より多く40%までのルチル含有率を得るために使用される量は、以下の式
A=105{[(TiCl4×H2)/(空気の量×合計ガス)]/BET}
[式中、A=0.1〜0.4である]
に従い、かつTiCl4、H2、空気の量及び合計ガスの単位はkmol/hであり、BET表面積の単位はm2/gであり、かつAの単位は105g/m2であるように選択される。
ガンマ=供給されたH2(mol)/化学量論的H2(mol)
ラムダ=供給されたO2(mol)/化学量論的O2(mol)
分析方法
BET表面積を、DIN 66131に従って測定する。
TiCl4蒸気0.0032kmol/hを、混合チャンバー中に導入する。これとは別に、水素0.022kmol/h及び一次空気を0.240kmol/hを、この混合チャンバー中に導入する。その反応混合物を、バーナーに供給し、そして点火する。この火炎は、水冷式炎管中で燃焼する。さらに、二次空気0.535kmol/hを、反応領域中に導入する。形成された粉末を、下流のフィルター中で分離し、続いて520℃で空気及び蒸気を用いて向流的に処理する。
Claims (3)
- 70〜100m2/gのBET表面積及び10%より多く40%までのルチル含有率を有する凝集一次粒子の形の結晶二酸化チタン粉末。
- 請求項1に記載の二酸化チタン粉末を製造するための方法であって、
− 四塩化チタン蒸気及び、それとは別に、水素、空気又は酸素を富化させた空気を、混合チャンバー中に導入し、
− 続いて、四塩化チタン蒸気、水素及び一次空気の混合物をバーナーで点火し、そしてその火炎を、反応チャンバー中で燃焼し、
− 続いて、その固体を、ガス状物質から分離し、その際、
70〜100m2/gのBET表面積及び10%より多く40%までのルチル含有率に達するために使用される量は、以下の式
A=105{[(TiCl4×H2)/(空気の量×合計ガス)]/BET}
[式中、A=0.1〜0.4である]
に従い、かつTiCl4、H2、空気の量及び合計ガスの単位はkmol/hであり、BET表面積の単位はm2/gであり、かつAの単位は105g/m2であるように選択されることを特徴とする方法。 - 触媒及び触媒担持体としての、請求項1に記載の二酸化チタン粉末の使用。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07108639.1A EP1997781B1 (de) | 2007-05-22 | 2007-05-22 | Verfahren zur Herstellung von Titandioxid mit variabler Sinteraktivität |
PCT/EP2008/054237 WO2008141866A1 (en) | 2007-05-22 | 2008-04-08 | Titanium dioxide having a variable sintering stability |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012277136A Division JP5623497B2 (ja) | 2007-05-22 | 2012-12-19 | 二酸化チタン粉末の製造方法 |
Publications (1)
Publication Number | Publication Date |
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JP2010527878A true JP2010527878A (ja) | 2010-08-19 |
Family
ID=38858948
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010508762A Pending JP2010527878A (ja) | 2007-05-22 | 2008-04-08 | 変動する焼結安定性を有する二酸化チタン |
JP2012277136A Expired - Fee Related JP5623497B2 (ja) | 2007-05-22 | 2012-12-19 | 二酸化チタン粉末の製造方法 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012277136A Expired - Fee Related JP5623497B2 (ja) | 2007-05-22 | 2012-12-19 | 二酸化チタン粉末の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (2) | US20080318046A1 (ja) |
EP (1) | EP1997781B1 (ja) |
JP (2) | JP2010527878A (ja) |
CN (1) | CN101679069B (ja) |
WO (1) | WO2008141866A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010026982A1 (ja) * | 2008-09-04 | 2010-03-11 | 住友化学株式会社 | チタン酸アルミニウム系セラミックスの製造方法 |
US10661261B2 (en) * | 2015-03-13 | 2020-05-26 | The Research Foundation For The State University Of New York | Metal oxide nanofibrous materials for photodegradation of environmental toxins |
CN107628640A (zh) * | 2017-08-14 | 2018-01-26 | 中国恩菲工程技术有限公司 | 纳米二氧化钛及其制备方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10505316A (ja) * | 1994-08-31 | 1998-05-26 | ユニヴァーシティ・オブ・シンシナティ | セラミック粉体、特に光触媒として有用な二酸化チタンの製造方法 |
JPH10251021A (ja) * | 1997-03-10 | 1998-09-22 | Showa Denko Kk | 塩素含有量の少ない微粒子酸化チタン粉末及びその製造法 |
WO2001023305A1 (fr) * | 1999-09-27 | 2001-04-05 | Showa Denko K.K. | Oxyde de titane a particules fines et procede pour le produire |
JP2007515368A (ja) * | 2003-12-03 | 2007-06-14 | デグサ ゲーエムベーハー | 火炎加水分解により製造される二酸化チタン粉末 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4084463B2 (ja) * | 1998-06-05 | 2008-04-30 | 道雄 松村 | 光触媒用酸化チタン粉末 |
KR100603998B1 (ko) * | 2000-12-28 | 2006-07-25 | 쇼와 덴코 가부시키가이샤 | 고활성 광촉매 |
JP4799275B2 (ja) * | 2000-12-28 | 2011-10-26 | 昭和電工株式会社 | 高活性光触媒 |
JP4027249B2 (ja) * | 2002-03-06 | 2007-12-26 | 昭和電工株式会社 | 低ハロゲン低ルチル型超微粒子酸化チタン及びその製造方法 |
JP4412643B2 (ja) * | 2003-10-01 | 2010-02-10 | 東邦チタニウム株式会社 | 酸化チタン粉末の製造方法 |
DE102004055165A1 (de) | 2003-12-03 | 2005-06-30 | Degussa Ag | Flammenhydrolytisch hergestelltes Titandioxidpulver |
CN100532274C (zh) * | 2003-12-31 | 2009-08-26 | 科学与工业研究委员会 | 超细金红石型二氧化钛颗粒的低温合成 |
JP4107499B2 (ja) * | 2004-03-17 | 2008-06-25 | 日本アエロジル株式会社 | 酸化チタン粒子の製造方法 |
-
2007
- 2007-05-22 EP EP07108639.1A patent/EP1997781B1/de not_active Not-in-force
-
2008
- 2008-04-08 JP JP2010508762A patent/JP2010527878A/ja active Pending
- 2008-04-08 WO PCT/EP2008/054237 patent/WO2008141866A1/en active Application Filing
- 2008-04-08 CN CN200880015824.9A patent/CN101679069B/zh not_active Expired - Fee Related
- 2008-05-22 US US12/125,531 patent/US20080318046A1/en not_active Abandoned
-
2010
- 2010-05-24 US US12/786,195 patent/US8071070B2/en not_active Expired - Fee Related
-
2012
- 2012-12-19 JP JP2012277136A patent/JP5623497B2/ja not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10505316A (ja) * | 1994-08-31 | 1998-05-26 | ユニヴァーシティ・オブ・シンシナティ | セラミック粉体、特に光触媒として有用な二酸化チタンの製造方法 |
JPH10251021A (ja) * | 1997-03-10 | 1998-09-22 | Showa Denko Kk | 塩素含有量の少ない微粒子酸化チタン粉末及びその製造法 |
WO2001023305A1 (fr) * | 1999-09-27 | 2001-04-05 | Showa Denko K.K. | Oxyde de titane a particules fines et procede pour le produire |
JP2007515368A (ja) * | 2003-12-03 | 2007-06-14 | デグサ ゲーエムベーハー | 火炎加水分解により製造される二酸化チタン粉末 |
Non-Patent Citations (3)
Title |
---|
JPN5010006298; R.R. Bacsa et al.: '"Effect of rutile phase on the photocatalytic properties of nanocrystalline titania during the degra' Applied Catalysis B: Environmental Vol.16, 1998, p.19-29 * |
JPN5010006299; Kranthi K. Akurati et al.: '"Synthesis of non-aggregated titania nanoparticles in atmospheric pressure diffusion flames"' Powder Technology Vol.165, 2006, p.73-82 * |
JPN6012032157; Sotiris E. Pratsinis et al.: '"The role of gas mixing in flame synthesis of titania powders"' Powder Technology Vol.86, 1996, p.87-93 * |
Also Published As
Publication number | Publication date |
---|---|
US20080318046A1 (en) | 2008-12-25 |
CN101679069B (zh) | 2012-07-25 |
JP5623497B2 (ja) | 2014-11-12 |
US8071070B2 (en) | 2011-12-06 |
WO2008141866A1 (en) | 2008-11-27 |
EP1997781B1 (de) | 2014-07-16 |
JP2013053067A (ja) | 2013-03-21 |
US20100234218A1 (en) | 2010-09-16 |
EP1997781A1 (de) | 2008-12-03 |
CN101679069A (zh) | 2010-03-24 |
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