JP2000176469A - Photocatalyst reactor - Google Patents

Photocatalyst reactor

Info

Publication number
JP2000176469A
JP2000176469A JP10354434A JP35443498A JP2000176469A JP 2000176469 A JP2000176469 A JP 2000176469A JP 10354434 A JP10354434 A JP 10354434A JP 35443498 A JP35443498 A JP 35443498A JP 2000176469 A JP2000176469 A JP 2000176469A
Authority
JP
Japan
Prior art keywords
photocatalyst
tube
spiral body
double cylindrical
light source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10354434A
Other languages
Japanese (ja)
Inventor
Yasuhiro Iwamura
康弘 岩村
Kazuya Osugi
和也 大杉
Fumio Nakagawa
文雄 中川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Tottori Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Sanyo Electric Co Ltd, Tottori Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP10354434A priority Critical patent/JP2000176469A/en
Publication of JP2000176469A publication Critical patent/JP2000176469A/en
Pending legal-status Critical Current

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  • Physical Water Treatments (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)

Abstract

PROBLEM TO BE SOLVED: To efficiently decompose a harmful substance with a photocatalyst. SOLUTION: In the device by which a treating tank 4 is formed between cylindrical tubes of double cylindrical tubes 1, 3 arranged nearly concentrically, and also a light source 11 is arranged inside the inner tube 3, and a fluid to be treated containing the harmful matters is allowed to flow in the treating tank 4 to decompose the organic matters, a spiral body 12 formed in a coil shape with nearly circular wire in the cross-section, is arranged in the treating tank 4, and also the photocatalyst 2 is deposited on the inner surface of the external tube 1 or the surface of the spiral body 12.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、被処理流体に含有
された有害物質を光触媒により分解・除去する光触媒反
応装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photocatalytic reactor for decomposing and removing harmful substances contained in a fluid to be treated by a photocatalyst.

【0002】[0002]

【従来の技術】トリハロメタンやトリクロロエチレン、
アセトアルデヒド、ニコチン等の有害物質を含有する水
や空気等の被処理体を光触媒を用いて分解処理する方法
が、例えば特開平10−192696号公報や、特開平
10−113657号公報等に示されている。
2. Description of the Related Art Trihalomethane, trichloroethylene,
A method of decomposing an object to be treated such as water or air containing harmful substances such as acetaldehyde and nicotine using a photocatalyst is disclosed in, for example, JP-A-10-192696 and JP-A-10-113657. ing.

【0003】一方、上記公報に示されている光触媒固定
板2、6、8や光触媒体1は、略平板状で光源の半径方
向に対し大きく延びている為、光触媒の担持面に対し光
源から放射される光が直角に当たり難く、光触媒への光
の照射量が減少して光触媒の担持量に対する処理能力が
低くなるという問題がある。
On the other hand, the photocatalyst fixing plates 2, 6, 8 and the photocatalyst body 1 shown in the above publication are substantially flat and extend greatly in the radial direction of the light source. There is a problem that the emitted light hardly hits at a right angle, the irradiation amount of the light to the photocatalyst decreases, and the processing capacity with respect to the photocatalyst carrying amount decreases.

【0004】[0004]

【発明が解決しようとする課題】そこで本発明は、光触
媒への光の照射効率を向上して、光触媒による有害物質
の分解効率を向上する事を目的とするものである。
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to improve the efficiency of irradiating a photocatalyst with light to improve the efficiency of decomposing harmful substances by the photocatalyst.

【0005】[0005]

【課題を解決するための手段】本発明は、略同心円状に
配置した二重円筒管の円筒管間に処理槽を形成すると共
に、二重円筒管の内管の内側に光源を配置し、処理槽内
に有害物質を含有する被処理流体を流通して有害物質を
分解処理するものにおいて、処理槽内に断面略円形の線
材をコイル状に成形したスパイラル体を配置すると共
に、二重円筒管の外管の内面又はスパイラル体の表面に
光触媒を担持したものである。
According to the present invention, a processing tank is formed between cylindrical tubes of a double cylindrical tube arranged substantially concentrically, and a light source is arranged inside an inner tube of the double cylindrical tube. In a treatment tank that decomposes harmful substances by flowing a fluid containing harmful substances into the treatment tank, a spiral body formed by winding a wire having a substantially circular cross section into a coil shape in the treatment tank and a double cylinder The photocatalyst is carried on the inner surface of the outer tube of the tube or on the surface of the spiral body.

【0006】又本発明は、スパイラル体のピッチを、ス
パイラル体の上下に隣接する外側円筒内面の接点と内側
円筒外面の接点とを結ぶ直線と管軸との交差角が11〜
27°と成る様に設定したものである。
Further, according to the present invention, the pitch of the spiral body is set so that the intersection angle between the straight line connecting the contact point on the inner surface of the outer cylinder and the contact point on the outer surface of the inner cylinder adjacent to the upper and lower sides of the spiral body is 11 to 11.
The angle is set to be 27 °.

【0007】[0007]

【発明の実施の形態】本発明の実施例を先ず図1に基づ
き説明すると、1はガラス、セラミック等の無機化合
物、ステンレス、銅、チタン等の金属等から成る中空筒
状の外管で、その少なくとも内面にTiO2、SnO2、WO3、Z
nO等の光触媒2を担持していると共に、上記外管1の内
側に略同心状に内管3を配設してこれらの間に処理槽4
を形成し、かつこれらの上下端を内外一対の支持具5,
5、6,6により閉塞している。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, an embodiment of the present invention will be described with reference to FIG. 1. Reference numeral 1 denotes a hollow cylindrical outer tube made of an inorganic compound such as glass or ceramic, or a metal such as stainless steel, copper or titanium. TiO 2 , SnO 2 , WO 3 , Z
In addition to carrying a photocatalyst 2 such as nO, an inner tube 3 is disposed substantially concentrically inside the outer tube 1 and a processing tank 4 is interposed therebetween.
And these upper and lower ends are connected to a pair of inner and outer support members 5,
Blocked by 5, 6, and 6.

【0008】又上記支持具5,5、6,6には、トリハ
ロメタンやテトラクロロエチレン、トリクロロエチレン
等の有害物質を含有する水や、アセトアルデヒド、メチ
ルメルカプタン、アンモニア等の有害物質を含有する空
気等を上記処理槽4に供給又は排出する流入路7と流出
路8を開口し、かつこれらには流入管9と流出管10を
各々連結している。
The supports 5, 5, 6 and 6 are treated with water containing harmful substances such as trihalomethane, tetrachloroethylene and trichloroethylene, or air containing harmful substances such as acetaldehyde, methyl mercaptan and ammonia. An inflow path 7 and an outflow path 8 for supplying or discharging to and from the tank 4 are opened, and an inflow pipe 9 and an outflow pipe 10 are connected to these, respectively.

【0009】尚、上記光触媒2は、チタンアルコキシ
ド、アルコール、水、酸等で調整したゾル液や、商品化
されているアナタース型チタンゾル液を、ディップコー
ト、スプレーコート、スピンコート法等により塗布した
後、乾燥又は焼成して行なうが、フッ素系或いはシリコ
ン系樹脂等、光触媒の酸化力に耐えうる高分子化合物を
用いれば、光触媒の焼成工程が省略出来る。又、上記内
管3は、紫外線を透過する石英管等で形成しているが、
紫外線を透過するものであれば特に限定されない。
The photocatalyst 2 was coated with a sol solution adjusted with titanium alkoxide, alcohol, water, acid, or the like, or a commercially available anatase-type titanium sol solution by dip coating, spray coating, spin coating, or the like. After that, drying or baking is performed. If a polymer compound that can withstand the oxidizing power of the photocatalyst, such as a fluorine-based or silicon-based resin, is used, the baking step of the photocatalyst can be omitted. The inner tube 3 is formed of a quartz tube or the like that transmits ultraviolet light.
There is no particular limitation as long as it transmits ultraviolet light.

【0010】11は上記内管3の内側略中心部に配設し
た光源となる紫外線ランプで、例えば波長が380nm
以下の水銀ランプや蛍光灯、ハロゲンランプ等で構成し
ている。
Reference numeral 11 denotes an ultraviolet lamp serving as a light source disposed at a substantially central portion inside the inner tube 3, and has a wavelength of 380 nm, for example.
It is composed of the following mercury lamps, fluorescent lamps, halogen lamps and the like.

【0011】12は上記外管1と内管3の間に装着した
スパイラル体で、断面が円形又はやや楕円形状のガラ
ス、セラミック等の無機化合物、ステンレス、銅、チタ
ン等の金属等をコイル状に成形したもので、その表面に
上記外管1に担持した光触媒2と同様な方法で光触媒1
3を担持している。
Reference numeral 12 denotes a spiral body which is mounted between the outer tube 1 and the inner tube 3 and has a circular or slightly elliptical cross-section made of an inorganic compound such as glass or ceramic, a metal such as stainless steel, copper, titanium or the like. The photocatalyst 1 is formed on the surface in the same manner as the photocatalyst 2 carried on the outer tube 1.
3 is carried.

【0012】又上記スパイラル体12は、上下に互いに
隣接する外側接点aと、内側接点bを結ぶ直線cと管軸
dとの交差角θが11〜27°と成る様に設定し、これ
により、互いの隣接部分に影響されることなく上記紫外
線ランプ11から放射される紫外線が、スパイラル体1
2の表面に担持した光触媒13や上記外管1の内面に担
持した光触媒2の略全体に照射され、これら光触媒2、
13による有害物質の分解処理を効率的に行う事が出来
るものである。
The spiral body 12 is set so that the intersection angle θ between a straight line c connecting the upper and lower outer contact points a and the inner contact point b and the tube axis d is 11 to 27 °. Ultraviolet rays radiated from the ultraviolet lamp 11 without being affected by adjacent portions of the spiral body 1
The photocatalyst 13 carried on the surface of the outer tube 1 and the photocatalyst 2 carried on the inner surface of the outer tube 1 are irradiated to substantially the entire surface.
13 can efficiently perform the decomposition treatment of harmful substances.

【0013】而して、トリハロメタンやトリクロロエチ
レン等の有害物質を含有する水等の被処理流体を流入管
9より処理槽4内に給水し、スパイラル体12間を螺旋
状に通水して流出管10より排水することで、外管1の
内面やスパイラル体12の表面に担持した光触媒2、1
3により、被処理流体内に含有する有害物質を分解・除
去するものである。
A fluid to be treated, such as water containing harmful substances such as trihalomethane and trichloroethylene, is supplied into the treatment tank 4 from the inflow pipe 9, and spirally flows between the spiral bodies 12 to flow out the outflow pipe. 10, the photocatalysts 2, 1 carried on the inner surface of the outer tube 1 and the surface of the spiral body 12 are drained.
By the method 3, harmful substances contained in the fluid to be treated are decomposed and removed.

【0014】そこで、図2は本発明による実施例の実験
結果と、従来のスパイラル体を用いないで外管1の内面
に光触媒を担持した場合との比較例を示すもので、実施
例1は上記外管1の内径を約28mm、内管3の外径を
約25mm、ステンレス製スパイラル体12の線径を約
1.5mm、有効長を230mmとし、かつθを23°
に設定し、被処理流体に総トリハロメタン濃度で100
ppbに調整したトリハロメタン溶液を用いた場合、実
施例2は上記θのみ16°に変更した場合、実施例3は
同じくθのみ11°に変更した場合、実施例4は同じく
θのみ8°に変更した場合、実施例5は上記実施例2に
おいてスパイラル体12の表面に光触媒13を担持しな
い場合である。
FIG. 2 shows a comparison example between the experimental results of the embodiment according to the present invention and the case where a photocatalyst is supported on the inner surface of the outer tube 1 without using the conventional spiral body. The inner diameter of the outer tube 1 is about 28 mm, the outer diameter of the inner tube 3 is about 25 mm, the wire diameter of the stainless steel spiral body 12 is about 1.5 mm, the effective length is 230 mm, and θ is 23 °.
And the total trihalomethane concentration is 100
In the case of using a trihalomethane solution adjusted to ppb, Example 2 was changed to 16 ° only in θ, Example 3 was changed to 11 ° only in θ, and Example 4 was changed to 8 ° in θ only. In this case, the fifth embodiment is a case where the photocatalyst 13 is not supported on the surface of the spiral body 12 in the second embodiment.

【0015】[0015]

【発明の効果】本発明は、略中心に光源を配置した二重
円筒管間に処理槽を形成すると共に、この処理槽内に断
面が略円形の線材により構成したスパイラル体を配置
し、かつこのスパイラル体の表面又は外管の内面に光触
媒を担持し、処理槽内に有機物質を含有する被処理流体
を通過する事で、この被処理流体内の有機物質を分解・
除去するもので、光源から放射される光が光触媒の担持
面に略直角に当たり、被処理流体内に含有する有機物質
を光触媒により効率的に分解・除去する事が出来るもの
である。
According to the present invention, a processing tank is formed between a double cylindrical tube having a light source disposed substantially at the center, and a spiral body having a substantially circular cross section is disposed in the processing tank. A photocatalyst is supported on the surface of the spiral body or the inner surface of the outer tube, and the organic substance in the processing fluid is decomposed by passing the processing fluid containing the organic substance in the processing tank.
The light emitted from the light source hits the photocatalyst carrying surface at substantially right angles, and the organic substance contained in the fluid to be treated can be efficiently decomposed and removed by the photocatalyst.

【0016】又本発明は、スパイラル体のピッチを、上
下に隣接する外側円筒内面の接点と内側円筒外面の接点
とを結ぶ直線と管軸との交差角が11〜27°と成る様
に設定したことで、隣接するスパイラル体の影響を受け
ることなく、光源から放射される光が光触媒の略全面に
照射され、有機物質の分解・除去を効率的に行う事が出
来るものである。
Further, in the present invention, the pitch of the spiral body is set such that the intersection angle between the straight line connecting the contact points on the inner surface of the outer cylinder and the contact point on the outer surface of the inner cylinder and the tube axis is 11 to 27 °. Thus, the light emitted from the light source is radiated to substantially the entire surface of the photocatalyst without being affected by the adjacent spiral body, and the organic substance can be efficiently decomposed and removed.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施例を示す側面断面図である。FIG. 1 is a side sectional view showing an embodiment of the present invention.

【図2】本発明による実施例と従来例との比較例を示す
特性図である。
FIG. 2 is a characteristic diagram showing a comparative example between an example according to the present invention and a conventional example.

【符号の説明】[Explanation of symbols]

1 外管 2 光触媒 3 内管 4 処理槽 12 スパイラル体 13 光触媒 θ 交差角 Reference Signs List 1 outer tube 2 photocatalyst 3 inner tube 4 treatment tank 12 spiral body 13 photocatalyst θ intersection angle

フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) B01D 53/36 D E G (72)発明者 大杉 和也 鳥取県鳥取市南吉方3丁目201番地 鳥取 三洋電機株式会社内 (72)発明者 中川 文雄 鳥取県鳥取市南吉方3丁目201番地 鳥取 三洋電機株式会社内 Fターム(参考) 4D037 AA11 AB14 BA18 CA12 4D048 AA01 AA08 AA11 AA19 BA07X BA16X BA21X BA27X BA41X CA07 CC31 EA01 4D050 AA13 AB19 BB01 BC06 BC09 BD02 BD08 4G069 AA01 AA03 AA15 BA04B BA48A BB04B BC22B BC35B BC60B CA05 CA17 CA19 DA05 EA06 EA15 FA03 Continuation of the front page (51) Int.Cl. 7 Identification symbol FI Theme coat II (reference) B01D 53/36 DEG (72) Inventor Kazuya Osugi 3-201 Minamiyoshikata, Tottori-shi, Tottori Sanyo Electric Co., Ltd. (72) Inventor Fumio Nakagawa 3-201 Minamiyoshikata, Tottori-shi, Tottori Prefecture F-term (reference) in Tottori Sanyo Electric Co., Ltd. BB01 BC06 BC09 BD02 BD08 4G069 AA01 AA03 AA15 BA04B BA48A BB04B BC22B BC35B BC60B CA05 CA17 CA19 DA05 EA06 EA15 FA03

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 略同心円状に配置した二重円筒管の円筒
管間に処理槽を形成すると共に、上記二重円筒管の内管
の内側に光源を配置し、上記処理槽内に有害物質を含有
する被処理流体を流通して有害物質を分解処理するもの
において、上記処理槽内に断面略円形の線材をコイル状
に成形したスパイラル体を配置すると共に、上記二重円
筒管の外管の内面又はスパイラル体の表面に光触媒を担
持した事を特徴とする光触媒反応装置。
1. A processing tank is formed between cylindrical tubes of a double cylindrical tube arranged substantially concentrically, and a light source is disposed inside an inner tube of the double cylindrical tube. In the one in which a harmful substance is decomposed by flowing a fluid to be treated containing, a spiral body formed by forming a wire having a substantially circular cross section into a coil shape in the treatment tank and the outer tube of the double cylindrical tube are arranged. A photocatalyst reaction apparatus characterized in that a photocatalyst is supported on the inner surface of the element or on the surface of the spiral body.
【請求項2】 上記スパイラル体のピッチを、スパイラ
ル体の上下に隣接する外側円筒内面の接点と内側円筒外
面の接点とを結ぶ直線と管軸との交差角が11〜27°
と成る様に設定した事を特徴とする、上記請求項1に記
載の光触媒反応装置。
2. A pitch of the spiral body is set such that an intersection angle between a straight line connecting a contact point on the inner surface of the outer cylinder and a contact point on the outer surface of the inner cylinder and a tube axis is 11 to 27 °.
2. The photocatalytic reaction device according to claim 1, wherein the photocatalytic reaction device is set to be as follows.
JP10354434A 1998-12-14 1998-12-14 Photocatalyst reactor Pending JP2000176469A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10354434A JP2000176469A (en) 1998-12-14 1998-12-14 Photocatalyst reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10354434A JP2000176469A (en) 1998-12-14 1998-12-14 Photocatalyst reactor

Publications (1)

Publication Number Publication Date
JP2000176469A true JP2000176469A (en) 2000-06-27

Family

ID=18437549

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10354434A Pending JP2000176469A (en) 1998-12-14 1998-12-14 Photocatalyst reactor

Country Status (1)

Country Link
JP (1) JP2000176469A (en)

Cited By (7)

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JP2006075666A (en) * 2004-09-07 2006-03-23 Gold Kosan Kk Waste treatment method and photocatalyst material
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006075666A (en) * 2004-09-07 2006-03-23 Gold Kosan Kk Waste treatment method and photocatalyst material
JP4551723B2 (en) * 2004-09-07 2010-09-29 ゴールド興産株式会社 Waste treatment method and photocatalytic material
JP2011200820A (en) * 2010-03-26 2011-10-13 Tokyo Metropolitan Industrial Technology Research Institute Volatile organic compound decomposition reactor
RU2548976C1 (en) * 2013-12-30 2015-04-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновская государственная сельскохозяйственная академия имени П.А. Столыпина" Water purification and disinfection apparatus
RU2734881C1 (en) * 2020-02-27 2020-10-23 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ульяновский государственный аграрный университет имени П.А. Столыпина" Device for water purification and disinfection
RU2736991C1 (en) * 2020-02-27 2020-11-23 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ульяновский государственный аграрный университет имени П.А. Столыпина" Device for water purification and disinfection
RU2736990C1 (en) * 2020-02-27 2020-11-23 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ульяновский государственный аграрный университет имени П.А. Столыпина" Device for water purification and disinfection
RU2774686C1 (en) * 2021-06-10 2022-06-21 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ульяновский государственный аграрный университет имени П.А. Столыпина" Device for water cleaning and disinfecting

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