JP4628010B2 - 酸化チタンの精製方法 - Google Patents
酸化チタンの精製方法 Download PDFInfo
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- JP4628010B2 JP4628010B2 JP2004119538A JP2004119538A JP4628010B2 JP 4628010 B2 JP4628010 B2 JP 4628010B2 JP 2004119538 A JP2004119538 A JP 2004119538A JP 2004119538 A JP2004119538 A JP 2004119538A JP 4628010 B2 JP4628010 B2 JP 4628010B2
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- titanium oxide
- type titanium
- rutile
- anatase
- mixture
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Description
また、本発明の他の目的は、アナターゼ型酸化チタンとルチル型酸化チタンの混合物から高純度のアナターゼ型酸化チタン又はルチル型酸化チタンを簡易に得る方法を提供することにある。
30重量%過酸化水素水に炭酸ナトリウムを飽和量溶解した溶液(pH12)100mlに、アナターゼ型酸化チタンとルチル型酸化チタンの混合物の粉末[商品名「P−25」、アナターゼ型含量74%、ルチル型含量26%、デグッサ社製]1gを分散して、沸騰するまで加熱した後、10分間撹拌した。沸騰状態の混合液を素早く濾過に付して固体を濾過し、イオン交換水で洗浄液が中性になるまで洗浄し、乾燥した。得られた粉末について、X線回折計(フィリップス社製、商品名「X'Pert-MRD」)によりX線回折パターンを測定したところ[2θ/degree=25.3(アナターゼ型酸化チタン)、27.5(ルチル型酸化チタン)のピーク強度を測定]、ルチル型酸化チタンのパターンは全く見られず、アナターゼ型酸化チタンのパターンのみが観測された。
濃硫酸100mlに、アナターゼ型酸化チタンとルチル型酸化チタンの混合物の粉末[商品名「JRC−TIO−5」、アナターゼ型含量9%、ルチル型含量91%、日本触媒協会の標準サンプル]1gを分散して、80℃に加熱した後、1時間撹拌したた。固体を濾過し、イオン交換水で洗浄液が中性になるまで洗浄し、乾燥した。得られた粉末について、X線回折計(フィリップス社製、商品名「X'Pert-MRD」)によりX線回折パターンを測定したところ[2θ/degree=25.3(アナターゼ型酸化チタン)、27.5(ルチル型酸化チタン)のピーク強度を測定]、アナターゼ型酸化チタンのパターンは全く見られず、ルチル型酸化チタンのパターンのみが観測された。
Claims (3)
- アナターゼ型酸化チタンとルチル型酸化チタンの混合物をアルカリ性過酸化水素水処理又は濃度50重量%以上の硫酸による硫酸処理に付して単一の結晶形からなる酸化チタンを得ることを特徴とする酸化チタンの精製方法。
- アナターゼ型酸化チタンとルチル型酸化チタンの混合物をアルカリ性過酸化水素水処理に付してアナターゼ型酸化チタンを得る請求項1記載の酸化チタンの精製方法。
- アナターゼ型酸化チタンとルチル型酸化チタンの混合物を濃度50重量%以上の硫酸による硫酸処理に付してルチル型酸化チタンを得る請求項1記載の酸化チタンの精製方法。
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JP2004119538A JP4628010B2 (ja) | 2004-04-14 | 2004-04-14 | 酸化チタンの精製方法 |
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JP2004119538A JP4628010B2 (ja) | 2004-04-14 | 2004-04-14 | 酸化チタンの精製方法 |
Publications (2)
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JP2005298295A JP2005298295A (ja) | 2005-10-27 |
JP4628010B2 true JP4628010B2 (ja) | 2011-02-09 |
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JP2004119538A Expired - Fee Related JP4628010B2 (ja) | 2004-04-14 | 2004-04-14 | 酸化チタンの精製方法 |
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Families Citing this family (1)
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KR101993236B1 (ko) * | 2017-06-29 | 2019-06-26 | 허경삼 | 화학적 표면 개질을 통한 가시광 응답형 이산화티타늄 광촉매 제조방법 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03146421A (ja) * | 1989-10-17 | 1991-06-21 | Kerr Mcgee Chem Corp | 粒状二酸化チタンの製造方法 |
JPH07303835A (ja) * | 1994-02-07 | 1995-11-21 | Ishihara Sangyo Kaisha Ltd | 光触媒用酸化チタンおよびその製造方法 |
JPH1015387A (ja) * | 1996-07-08 | 1998-01-20 | Chubu Electric Power Co Inc | チタニア系触媒の製造方法 |
JPH1067516A (ja) * | 1996-05-07 | 1998-03-10 | Saga Pref Gov | アナターゼ分散液およびその製造方法 |
JPH10286456A (ja) * | 1997-04-14 | 1998-10-27 | Tao:Kk | 吸着機能体 |
JP2001048538A (ja) * | 1999-08-06 | 2001-02-20 | Saga Prefecture | チタン酸化物形成用溶液およびその製造方法 |
JP2001172019A (ja) * | 1999-12-14 | 2001-06-26 | Fm Giken Kk | 酸化チタン微粒子の分散ゲル及び溶液並びにそれらの製造方法 |
-
2004
- 2004-04-14 JP JP2004119538A patent/JP4628010B2/ja not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03146421A (ja) * | 1989-10-17 | 1991-06-21 | Kerr Mcgee Chem Corp | 粒状二酸化チタンの製造方法 |
JPH07303835A (ja) * | 1994-02-07 | 1995-11-21 | Ishihara Sangyo Kaisha Ltd | 光触媒用酸化チタンおよびその製造方法 |
JPH1067516A (ja) * | 1996-05-07 | 1998-03-10 | Saga Pref Gov | アナターゼ分散液およびその製造方法 |
JPH1015387A (ja) * | 1996-07-08 | 1998-01-20 | Chubu Electric Power Co Inc | チタニア系触媒の製造方法 |
JPH10286456A (ja) * | 1997-04-14 | 1998-10-27 | Tao:Kk | 吸着機能体 |
JP2001048538A (ja) * | 1999-08-06 | 2001-02-20 | Saga Prefecture | チタン酸化物形成用溶液およびその製造方法 |
JP2001172019A (ja) * | 1999-12-14 | 2001-06-26 | Fm Giken Kk | 酸化チタン微粒子の分散ゲル及び溶液並びにそれらの製造方法 |
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JP2005298295A (ja) | 2005-10-27 |
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