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1. 发明专利

JP2005137987A Removal method of air pollutants 有权
标题翻译：空气污染物的去除方法
公开(公告)号：JP2005137987A
公开(公告)日：2005-06-02
申请号：JP2003375294
申请日：2003-11-05
申请人： Chiyoda Corp , 千代田化工建設株式会社
发明人： OKADA YOSHIKI , NISHIJIMA HIROAKI , SAITO MASASHI , ANPO SHOICHI , YAMASHITA HIROMI , BERNARD SHAW NEPOLIAN
IPC分类号： A61L9/00 , A61L9/20 , B01D53/86 , B01J35/02 , B01J37/03 , B01J37/08 , C01G23/053
摘要： PROBLEM TO BE SOLVED: To provide a removal method of air pollutants capable of efficiently subjecting air pollutants in the atmosphere to oxidative decomposition using photocatalytic titanium oxide obtained by baking at a high temperature of 500°C or above, easily formed into a formulation or the like of every kind as a photocatalyst by secondary processing and controlled in the ratio of an anatase type titanium oxide crystal and a rutile type titanium oxide crystal. SOLUTION: A titanium oxide precursor is obtained by repeating pH swing operation, which is composed of operation for adding a basic aqueous solution to a titanium-containing acidic aqueous solution to precipitate a titanium oxide precursor having a hydroxy group and adding an acidic raw material aqueous solution to the obtained titanium oxide precursor slurry not only to lower a pH value to the dissolving region of the titanium oxide precursor but also to additionally charge the raw material aqueous solution and operation for adding the basic aqueous solution to the obtained titanium-containing acidic aqueous solution to raise a pH value to the precipitation region of the titanium oxide precursor, at least three times and baked at a high temperature of 500°C or above to obtain titanium oxide controlled in the ratio of an anatase type crystal and a rutile type crystal. This titanium oxide is used to oxidatively decompose air pollutants to remove them. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：为了提供能够有效地对大气中的空气污染物进行的空气污染物的去除方法，可以通过在500℃以上的高温下烘烤得到的光催化性氧化钛进行氧化分解，容易形成制剂等作为光催化剂，通过二次加工，并以锐钛矿型氧化钛晶体和金红石型氧化钛晶体的比例进行控制。解决方案：通过重复pH挥发操作获得二氧化钛前体，其由将碱性水溶液添加到含钛酸性水溶液中以使具有羟基的氧化钛前体沉淀并加入酸性的操作原料水溶液不仅使得氧化钛前体的溶解区域的pH值降低，而且还对原料水溶液进行充电，并将碱性水溶液加入到得到的钛 - 含有酸性水溶液以使pH值升高至氧化钛前体的析出区域，至少三次，并在500℃以上的高温下进行烧成，得到以锐钛矿型晶体和金红石型晶体。该氧化钛用于氧化分解空气污染物以除去它们。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2005137988A Water-polluting organic substance removal method 有权
标题翻译：水污染有机物质去除方法
公开(公告)号：JP2005137988A
公开(公告)日：2005-06-02
申请号：JP2003375324
申请日：2003-11-05
申请人： Chiyoda Corp , 千代田化工建設株式会社
发明人： OKADA YOSHIKI , NISHIJIMA HIROAKI , MAKABE TOSHIJI , ANPO SHOICHI , YAMASHITA HIROMI , BERNARD SHAW NEPOLIAN
IPC分类号： C02F1/32 , B01J21/06 , B01J35/02 , C01G23/053 , C02F1/72
CPC分类号： Y02W10/37
摘要： PROBLEM TO BE SOLVED: To provide a water-polluting organic substance removal method which oxidatively decomposes water-polluting organic substances and the like in treated water by using photocatalyst titanium oxide which is easily fabricated into various dosage forms and shapes required when used as a photocatalyst and baked at the high temperature of ≥500°C to control the ratio of an anatase-type crystal to a rutile type crystal. SOLUTION: In the water-polluting organic substance removal method, the water-polluting organic substances and the like in the treated water are oxidatively decomposed by using the titanium oxide of which the ratio of the anatase-type crystal to the rutile type crystal is controlled and which is obtained by baking a titanium oxide precursor at the high temperature of ≥500°C. The titanium oxide precursor is obtained by repeating the following pH swing operation at least three times. The pH swing operation comprises an operation for adding a basic aqueous solution to a titanium-containing acidic aqueous solution to precipitate the titanium oxide precursor having a hydroxyl group, and then adding an acidic raw aqueous solution into the obtained titanium oxide precursor slurry to decrease the pH value to the dissolution region of the titanium oxide precursor and at the same time feeding additional raw material, and an operation for adding the basic aqueous solution to the titanium-containing acidic aqueous solution obtained by the above operation to increase the pH value to the precipitation region of the titanium oxide precursor. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种通过使用光催化剂氧化钛来氧化分解处理水中的水污染性有机物等的水污染性有机物质去除方法，其可以容易地制成各种剂型和使用时所需的形状作为光催化剂，并在≥500℃的高温下烘烤以控制锐钛矿型晶体与金红石型晶体的比例。解决方案：在水污染有机物去除方法中，处理水中的水污染性有机物质等通过使用锐钛矿型结晶与金红石型的比例的氧化钛进行氧化分解晶体被控制，其通过在≥500℃的高温下烘烤氧化钛前体而获得。通过重复以下pH挥发操作至少三次获得氧化钛前体。 pH挥发操作包括将碱性水溶液加入到含钛酸性水溶液中以沉淀具有羟基的氧化钛前体的操作，然后将酸性原水溶液加入到所得氧化钛前体浆料中以减少 pH值提供给氧化钛前体的溶解区域，并且同时进料另外的原料，以及将碱性水溶液加入到通过上述操作获得的含钛酸性水溶液中以将pH值增加至氧化钛前体的沉淀区。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2005137986A Titanium oxide precursor for manufacturing photocatalyst, its manufacturing method and photocatalytic titanium oxide obtained from titanium oxide precursor 有权
标题翻译：用于制造光催化剂的氧化钛前驱体，其制备方法和从氧化钛前体获得的光催化氧化钛
公开(公告)号：JP2005137986A
公开(公告)日：2005-06-02
申请号：JP2003375286
申请日：2003-11-05
申请人： Chiyoda Corp , 千代田化工建設株式会社
发明人： OKADA YOSHIKI , NISHIJIMA HIROAKI , ANPO SHOICHI , YAMASHITA HIROMI
IPC分类号： C01G23/04 , B01J35/02 , B01J37/03 , B01J37/08 , C01G23/07
摘要： PROBLEM TO BE SOLVED: To provide a titanium oxide precursor for a photocatalyst, its manufacturing method, photocatalytic titanium oxide manufactured from the precursor and its manufacturing method.
SOLUTION: The titanium oxide precursor for manufacturing the photocatalyst is obtained by repeating pH swing operation, wherein a basic aqueous solution is added to a titanium-containing acidic aqueous solution to precipitate a titanium oxide precursor having a hydroxy group and an acidic raw material aqueous solution is added to the obtained titanium oxide precursor slurry not only to lower a pH value to the dissolving region of the titanium oxide precursor but also to additionally charge the raw material aqueous solution while the basic aqueous solution is added to the obtained titanium-containing acidic aqueous solution to raise a pH value to the precipitation region of the titanium oxide precursor, at least three times. Titanium oxide for the photocatalyst is controlled in the ratio of a anatase type crystal and a rutile type crystal after baking by the number of times of pH swing operations and the temperature and time when the obtained titanium oxide precursor is baked at a high temperature of 500°C or above.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于光催化剂的氧化钛前体及其制造方法，由前体制造的光催化氧化钛及其制造方法。解决方案：用于制造光催化剂的氧化钛前体是通过重复pH挥发操作获得的，其中将碱性水溶液加入到含钛酸性水溶液中以沉淀具有羟基和酸性原料的氧化钛前体向得到的氧化钛前体浆料中添加材料性水溶液，不仅使pH值降低至氧化钛前体的溶解区域，而且还在将原料水溶液加入到所得到的钛 - 含有酸性水溶液使pH值升至氧化钛前体的析出区域，至少3次。用于光催化剂的氧化钛以烧结后的锐钛矿型晶体和金红石型晶体的比例控制在pH挥发操作次数和在高温500℃下焙烧得到的氧化钛前体时的温度和时间 ℃以上。版权所有（C）2005，JPO＆NCIPI

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