JP2010527880A - 増加させた焼結作用を有する二酸化チタン - Google Patents
増加させた焼結作用を有する二酸化チタン Download PDFInfo
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- 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
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- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
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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、BET表面積30〜65m2/g及びルチル含有率50〜70%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=6〜12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0.0042kmol/hを、混合チャンバー中に導入する。これとは別に、水素0.19kmol/h及び一次空気0.683kmol/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0.892kmol/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)
- BET表面積30〜65m2/g及びルチル含有率50〜70%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、BET表面積30〜65m2/g及びルチル含有率50〜70%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=6〜12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。 - セラミクス産業における、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 |
---|---|---|---|
EP07108632A EP1995217B1 (de) | 2007-05-22 | 2007-05-22 | Titandioxid mit erhöhter Sinteraktivität |
PCT/EP2008/055090 WO2008141891A1 (en) | 2007-05-22 | 2008-04-25 | Titanium dioxide having increased sintering activity |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013008446A Division JP5698273B2 (ja) | 2007-05-22 | 2013-01-21 | 増加させた焼結作用を有する二酸化チタンの製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2010527880A true JP2010527880A (ja) | 2010-08-19 |
Family
ID=38283067
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010508771A Pending JP2010527880A (ja) | 2007-05-22 | 2008-04-25 | 増加させた焼結作用を有する二酸化チタン |
JP2013008446A Expired - Fee Related JP5698273B2 (ja) | 2007-05-22 | 2013-01-21 | 増加させた焼結作用を有する二酸化チタンの製造方法 |
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Application Number | Title | Priority Date | Filing Date |
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JP2013008446A Expired - Fee Related JP5698273B2 (ja) | 2007-05-22 | 2013-01-21 | 増加させた焼結作用を有する二酸化チタンの製造方法 |
Country Status (7)
Country | Link |
---|---|
US (2) | US20080292539A1 (ja) |
EP (1) | EP1995217B1 (ja) |
JP (2) | JP2010527880A (ja) |
CN (1) | CN101679070B (ja) |
AT (1) | ATE465976T1 (ja) |
DE (1) | DE502007003594D1 (ja) |
WO (1) | WO2008141891A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009049173A1 (de) * | 2009-10-13 | 2011-04-21 | Süd-Chemie AG | Reaktoranordnung zur katalytischen Gasphasenoxidation |
WO2016005041A1 (de) * | 2014-07-08 | 2016-01-14 | Kronos International, Inc. | Verfahren zur agglomeration feinteiliger rohstoffe für die titandioxidherstellung |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001023305A1 (fr) * | 1999-09-27 | 2001-04-05 | Showa Denko K.K. | Oxyde de titane a particules fines et procede pour le produire |
JP2005104796A (ja) * | 2003-10-01 | 2005-04-21 | Toho Titanium Co Ltd | 酸化チタン粉末の製造方法 |
US20050214200A1 (en) * | 2004-03-26 | 2005-09-29 | Council Of Scientific And Industrial Research | Synthesis of ultrafine rutile phase titanium dioxide particles |
JP2006335619A (ja) * | 2005-06-03 | 2006-12-14 | Showa Denko Kk | 酸化チタン粒子、その製造方法及び応用 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5698177A (en) | 1994-08-31 | 1997-12-16 | University Of Cincinnati | Process for producing ceramic powders, especially titanium dioxide useful as a photocatalyst |
JP3656355B2 (ja) | 1997-03-10 | 2005-06-08 | 昭和電工株式会社 | 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 |
JP4084463B2 (ja) * | 1998-06-05 | 2008-04-30 | 道雄 松村 | 光触媒用酸化チタン粉末 |
JP2001039704A (ja) * | 1998-06-25 | 2001-02-13 | Ishihara Sangyo Kaisha Ltd | 金属酸化物の製造方法 |
US20070081938A1 (en) * | 2003-10-01 | 2007-04-12 | Toho Titanium Co., Ltd | Titanium dioxide powder and method for production thereof |
DE102004055165A1 (de) | 2003-12-03 | 2005-06-30 | Degussa Ag | Flammenhydrolytisch hergestelltes Titandioxidpulver |
JP4445972B2 (ja) | 2003-12-03 | 2010-04-07 | エボニック 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 |
EP1752216A1 (de) * | 2005-08-09 | 2007-02-14 | Degussa AG | Verwendung von Titandioxid-Mischoxid als Photokatalysator |
-
2007
- 2007-05-22 AT AT07108632T patent/ATE465976T1/de active
- 2007-05-22 EP EP07108632A patent/EP1995217B1/de not_active Not-in-force
- 2007-05-22 DE DE502007003594T patent/DE502007003594D1/de active Active
-
2008
- 2008-04-25 WO PCT/EP2008/055090 patent/WO2008141891A1/en active Application Filing
- 2008-04-25 JP JP2010508771A patent/JP2010527880A/ja active Pending
- 2008-04-25 CN CN2008800158342A patent/CN101679070B/zh not_active Expired - Fee Related
- 2008-05-22 US US12/125,116 patent/US20080292539A1/en not_active Abandoned
-
2009
- 2009-12-10 US US12/634,732 patent/US8062622B2/en not_active Expired - Fee Related
-
2013
- 2013-01-21 JP JP2013008446A patent/JP5698273B2/ja not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001023305A1 (fr) * | 1999-09-27 | 2001-04-05 | Showa Denko K.K. | Oxyde de titane a particules fines et procede pour le produire |
JP2005104796A (ja) * | 2003-10-01 | 2005-04-21 | Toho Titanium Co Ltd | 酸化チタン粉末の製造方法 |
US20050214200A1 (en) * | 2004-03-26 | 2005-09-29 | Council Of Scientific And Industrial Research | Synthesis of ultrafine rutile phase titanium dioxide particles |
JP2006335619A (ja) * | 2005-06-03 | 2006-12-14 | Showa Denko Kk | 酸化チタン粒子、その製造方法及び応用 |
Also Published As
Publication number | Publication date |
---|---|
US20080292539A1 (en) | 2008-11-27 |
WO2008141891A1 (en) | 2008-11-27 |
US20100150819A1 (en) | 2010-06-17 |
US8062622B2 (en) | 2011-11-22 |
JP2013075829A (ja) | 2013-04-25 |
JP5698273B2 (ja) | 2015-04-08 |
CN101679070B (zh) | 2012-06-27 |
CN101679070A (zh) | 2010-03-24 |
EP1995217B1 (de) | 2010-04-28 |
EP1995217A1 (de) | 2008-11-26 |
ATE465976T1 (de) | 2010-05-15 |
DE502007003594D1 (de) | 2010-06-10 |
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