JPH0316640A - Catalyst for decomposing ozone - Google Patents
Catalyst for decomposing ozoneInfo
- Publication number
- JPH0316640A JPH0316640A JP1150486A JP15048689A JPH0316640A JP H0316640 A JPH0316640 A JP H0316640A JP 1150486 A JP1150486 A JP 1150486A JP 15048689 A JP15048689 A JP 15048689A JP H0316640 A JPH0316640 A JP H0316640A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- ozone
- manganese
- air
- active
- 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
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 27
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims description 39
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 21
- 229910016978 MnOx Inorganic materials 0.000 claims abstract description 6
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 claims description 5
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 229940099596 manganese sulfate Drugs 0.000 abstract description 5
- 235000007079 manganese sulphate Nutrition 0.000 abstract description 5
- 239000011702 manganese sulphate Substances 0.000 abstract description 5
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 abstract description 3
- IPJKJLXEVHOKSE-UHFFFAOYSA-L manganese dihydroxide Chemical compound [OH-].[OH-].[Mn+2] IPJKJLXEVHOKSE-UHFFFAOYSA-L 0.000 abstract description 3
- 239000011882 ultra-fine particle Substances 0.000 abstract description 3
- 229910021529 ammonia Inorganic materials 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 150000002697 manganese compounds Chemical class 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 5
- 229910001882 dioxygen Inorganic materials 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 229910052748 manganese Inorganic materials 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 235000014413 iron hydroxide Nutrition 0.000 description 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はオゾン分解触謀、特に排オゾン処理を低温で行
うために用いる触媒に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ozone decomposition catalyst, particularly to a catalyst used for treating exhaust ozone at low temperatures.
一般にオゾンは強力な酸化作用を有するため、脱臭、脱
色、殺菌処理などに利用される。しかし、これらの処理
装置ではオゾンは完全に利用されず一部は未反応のま會
大気中に放出される。Generally, ozone has a strong oxidizing effect, so it is used for deodorization, bleaching, sterilization, etc. However, in these treatment devices, ozone is not completely utilized and a portion of it is released into the atmosphere as unreacted raw material.
又、電子写真複写機や空気浄化機などのように高電圧装
置を組込んだ機器からのオゾン発生も問題視されてカシ
、特にこれらの機器は室内におかれるため微量のオゾン
であっても室内は汚染される。オゾンは臭いの強い気体
で僅かａ１ｐｐｍの濃度でも感知でき、人体に対しても
極めて有害であるため、これの除去が求められている。In addition, ozone generation from equipment that incorporates high-voltage equipment, such as electrophotographic copiers and air purifiers, is also considered a problem, and especially since these equipment are kept indoors, even trace amounts of ozone can be released. The room becomes contaminated. Ozone is a gas with a strong odor that can be detected even at a concentration of only 1 ppm, and is extremely harmful to the human body, so there is a demand for its removal.
従来、オゾンの除去は活性炭法や熱分解法、薬液洗浄法
などが知られているが、活性炭法はオゾン分解の進行に
伴う活性炭自身の消耗や不活性化が起シ、このため時々
活性炭を補充し危ければなら欧い。また高濃度オゾンの
場合には、反応熱によシ活性炭自身が発火燃焼に至る危
険性がある。熱分解法は分解速度を大きくするために３
００℃程度の高温を要し、そのための加熱費用がかさみ
処理コストが高くつく。薬液洗浄法は薬液の補充が必要
であシ、このため処理コストも高く、又ミストが飛散す
るなどの問題がある。Conventionally, ozone removal methods include the activated carbon method, thermal decomposition method, and chemical cleaning method, but the activated carbon method causes consumption and inactivation of the activated carbon itself as ozone decomposition progresses. If it's dangerous to replenish, it's Europe. Furthermore, in the case of high concentration ozone, there is a danger that the activated carbon itself will ignite and burn due to the heat of reaction. Thermal decomposition method uses 3 methods to increase the decomposition rate.
A high temperature of about 00°C is required, which increases the heating cost and increases the processing cost. The chemical liquid cleaning method requires replenishment of the chemical liquid, which results in high processing costs and problems such as mist scattering.
上述の種Ａ問題を踏１えオゾンを低コストで分解除去す
るための研究がなされ、最近触媒を用いる方法が種々提
案されている。例えばＡ４０，， ８１０，， Ｔｉｅ
，を担体としてＶ， Ｃｒ， Ｍｎ， Ｆｅ，ｃｏ，Ｎ
ｉ，Ｃｕ，Ｚｒ，Ｎｂ，Ｍｏ，Ｒｕ，Ｒｈ，Ｐｄ，Ａｙ
，ｓｎを活性体とするオゾン分解触媒が特開昭５３−１
４４８８号公報にて開示されている。これに次いで珪藻
土に特定量のＮ１を担持した触媒（特開昭５３−５４ｉ
１３９号公報）、Ｍｎ酸化物に特定割合のＧｏを添加し
た触媒（特開昭５７−１３６９４０号公報）が開示され
ている。更に最近、ＴｉＯ，−８１０．１ 及び’ｒｉ
ｏ，−ｚｒｏ，などの二元系酸化物とＭｎ， Ｆｅ，
Ｃｏ， Ｎｉ， Ａｙ， Ｐｔ， Ｐｄ， Ｒｈなどの
金属からなる触謀（特開昭６２−９７６４３号公報）や
’Ｉ’１０，−Ｐ，Ｏ，を担体として、これに上記（特
開昭４２−９７６４３号公報）に開示の金属を組合せた
触媒（特開昭６２−１５２５４６号公報）が開示されて
いる。また安価ｉ触謀として水酸化鉄または酸化鉄水化
物を含む触媒を用いた廃オゾン処理方法（特開昭５９−
４２０２２号公報）が開示されている。In view of the above-mentioned Type A problem, research has been conducted to decompose and remove ozone at low cost, and recently various methods using catalysts have been proposed. For example, A40,, 810,, Tie
, with V, Cr, Mn, Fe, co, N as a carrier
i, Cu, Zr, Nb, Mo, Ru, Rh, Pd, Ay
An ozone decomposition catalyst containing ,sn as an active substance was disclosed in JP-A-53-1.
It is disclosed in Japanese Patent No. 4488. This was followed by a catalyst in which a specific amount of N1 was supported on diatomaceous earth (Japanese Unexamined Patent Publication No. 53-54i)
139) and a catalyst in which a specific proportion of Go is added to Mn oxide (Japanese Patent Application Laid-Open No. 136940/1982). More recently, TiO, -810.1 and 'ri
Binary oxides such as o, -zro, etc. and Mn, Fe,
Co, Ni, Ay, Pt, Pd, Rh and other metals (Japanese Unexamined Patent Publication No. 62-97643) or 'I'10, -P, O, are used as carriers, 42-97643) and a catalyst (Japanese Patent Application Laid-Open No. 152546/1982) in which the disclosed metals are combined. In addition, as an inexpensive method for treating waste ozone using a catalyst containing iron hydroxide or iron oxide hydrate,
No. 42022) is disclosed.
しかしこれらの触媒はいずれも加熱（例えば５０℃以上
）しなければ分解効率が悪く、常温での分解活性は十分
とは云えない。However, all of these catalysts have poor decomposition efficiency unless heated (for example, to 50° C. or higher), and their decomposition activity at room temperature cannot be said to be sufficient.
本発明の目的はガヌ中に含まれるオゾンを触媒によう分
解するに当υ、常温で分解活性の優れる、安価なオゾン
分解触媒を提供することにある。An object of the present invention is to provide an inexpensive ozone decomposition catalyst that has excellent decomposition activity at room temperature and is capable of catalytically decomposing ozone contained in ganu.
本発明者らは、上記目的に沿って、安価な触媒としてマ
ンガン系を主体に低温分解活性を向上させるべく検討を
重ねた結果、Ｍｉ微細粒径を有する活性酸化マンガンＭ
ｎＯｘ （ Ｘ ＝ ｔ ６ 〜１． ８）が低温領域
にかいて活性であることから、この活性酸化マンガンを
チタリアに添加することによって、常温で優れたオゾン
分解活性を示すことを見出し、本発明を完或するに至っ
た。In line with the above-mentioned purpose, the present inventors conducted repeated studies to improve the low-temperature decomposition activity mainly using manganese as an inexpensive catalyst.
Since nOx (X = t6 to 1.8) is active in the low temperature range, it was discovered that by adding this active manganese oxide to titaria, it exhibits excellent ozonolytic activity at room temperature, and the present invention has been completed.
すなわち、本発明はチタリアに４０〜７０重量％の活性
酸化マンガンＭｎＯｘ （ Ｘ＝ １． ６〜ｔ ｅ
）を添加してｉることを特徴とするオゾン分解触媒であ
る。That is, the present invention provides titalia with 40 to 70% by weight of active manganese oxide MnOx (X = 1.6 to te
) is added to the ozone decomposition catalyst.
本発明にかかる触媒の特徴は、通常触媒担体として使用
されているアナターゼ型チタリアに活性酸化マンガンを
添加したことである。A feature of the catalyst according to the present invention is that active manganese oxide is added to anatase-type titalia, which is normally used as a catalyst carrier.
好ましい活性酸化マンガンＭｎＯｘ （ Ｘ ＝ １．
６〜１、８）の調製は、以下の如く実施される。Preferred activated manganese oxide MnOx (X = 1.
Preparation of 6-1, 8) is carried out as follows.
ｍｏｔ
硫酸マンガンｃＬ５〜１．５ ／ｔ（好ましくｍｏ
ｔ
はＩ ／ｔ）の水溶液にアンモニア水をＮＨ４°Ｈ
／Ｍｎ８０， ４ Ａ／ 比２．５ 〜４ （好’！１
，＜ハｓ ）の割合で添加混合したのち、気泡塔等の気
一液接触装置にかいて、空気又は酸素ガスを吹込み、液
温を２０℃以下に調節しながら、硫酸マンガンとアンモ
ニアの反応で生或した水酸化マンガンを酸化し、ＭｎＯ
ｘのＸ値１．６〜１．８に調節する。酸化後は炉過、洗
滌したのち６ｏ″Ｃ〜８０℃で空気乾燥を行う。mot manganese sulfate cL5~1.5/t (preferably mo
t is I / t) ammonia water is added to the aqueous solution of NH4°H.
/Mn80, 4 A/ Ratio 2.5 ~ 4 (Good!1
. The manganese hydroxide produced in the reaction is oxidized to form MnO
Adjust the X value of x to 1.6 to 1.8. After oxidation, it is filtered in an oven, washed, and then air dried at 6o''C to 80C.
この調製法で得られた活性酸化マンガンは、超微細粒径
（ｌｌＬ１μｍ 〜１． ０ ｐｍ ）を有するため比
表面積が大であシ、常温において非常に活性な酸化物で
あることから、触謀担体として使用されているチタエア
に添加することにょう常温で優れたオゾン分解触媒とな
る。The activated manganese oxide obtained by this preparation method has an ultrafine particle size (1μm to 1.0 pm), has a large specific surface area, and is a very active oxide at room temperature. When added to Tita Air, which is used as a carrier, it becomes an excellent ozone decomposition catalyst at room temperature.
〔活性酸化マンガンの調製〕
活性酸化マンガンの調製につき、第１図によって説明す
る。第１図に示すように気一液接触装置として優れた性
能を有するロータリーアトマイザー（特公昭４３−１３
１２１号公報）１を設置した酸化槽２にｔ ｍｏＬ／
ｔの硫酸マンガン水溶液を２ｔ充てんしたのち、アンモ
ニア水６ ｍｏｔ注入し、ロータリーアトマイザーをモ
ーター３で高速回転させて液を攪拌し慶から酸素ガス４
を供給して硫酸マンガンとアンモニアの反応によって生
或した水酸化マンガンＭｎ（ＯＨ），を酸化する。[Preparation of active manganese oxide] The preparation of active manganese oxide will be explained with reference to FIG. As shown in Figure 1, the rotary atomizer (Special Publication No. 43-13
121) t moL/
After filling 2 tons of manganese sulfate aqueous solution, 6 tons of ammonia water was injected, and the rotary atomizer was rotated at high speed with motor 3 to stir the liquid, and 4 tons of oxygen gas was released from Kei.
is supplied to oxidize manganese hydroxide Mn(OH) produced by the reaction of manganese sulfate and ammonia.
酸素ガス４の供給は酸素ガスボンベ５から酸素ガス流量
計６を通してｓ ＮＬ／ｍｉｎ Ｋ ｔＪＭ節して３０
分間供給した。この酸化反応は発熱反応であるため、酸
化槽２内に冷却管７を設置し、温度計８で温度が２０″
Ｃ以下に々るように冷却水９を流した。Oxygen gas 4 is supplied from an oxygen gas cylinder 5 through an oxygen gas flow meter 6 at a rate of 30 s NL/min K tJM.
Supplied for minutes. Since this oxidation reaction is an exothermic reaction, a cooling pipe 7 is installed in the oxidation tank 2, and the temperature is 20" with a thermometer 8.
Cooling water 9 was flowed so that the temperature was below C.
酸素ガス供給停止後、酸化生威した活性酸化マンガンを
炉過、洗滌したのち、乾燥器に入れ８０℃、５時間乾燥
した。After stopping the supply of oxygen gas, the oxidized active manganese oxide was filtered and washed, and then placed in a dryer and dried at 80° C. for 5 hours.
以上の方法で調製した活性酸化マンガンＭｎＯｘは、超
微細粉末（（Ｌ１〜１μｍ）であり、Ｘ値は１．７であ
った。The activated manganese oxide MnOx prepared by the above method was an ultrafine powder ((L1 to 1 μm)) and had an X value of 1.7.
Ｔｉｅ，とＭｎＯ。の混合粉末を一旦加圧或形し、破砕
して篩いで１，０〜１． ６ ８ ｍｓの大きさに粒径
を揃えた。Ｔｉｅ，とＭｎＯｔｙｓの混合比は、次項の
表に示す。Tie, and MnO. Once the mixed powder is pressurized or shaped, crushed and sieved to a size of 1.0 to 1. The particle size was made uniform to the size of 68 ms. The mixing ratio of Tie and MnOtys is shown in the table in the next section.
第２図によってオゾン分解試験法及びその結果を示す。 Figure 2 shows the ozone decomposition test method and its results.
第２図にかいて、オゾン（０，）はＮＯｘ計のオゾン発
生器１０を用い、このオゾン発生器１０に空気１１を流
量計１２を通して所定量供給し、オゾン含有空気１３を
作る。このオゾン含有空気１３の一部をオゾン流量計１
４を通して空気流量計１５で五６ Ｎｔ／ ｍｉｎに調
節した空気１６と混合し、混合後の空気中のオゾン濃度
が２ ｐｐｍになるようにオゾン流量計１４においてオ
ゾン含有空気量を調節する。In FIG. 2, ozone (0,) is generated using an ozone generator 10 of a NOx meter, and a predetermined amount of air 11 is supplied to the ozone generator 10 through a flowmeter 12 to produce ozone-containing air 13. A part of this ozone-containing air 13 is transferred to an ozone flowmeter 1
4 and mixed with air 16 adjusted to 56 Nt/min with an air flow meter 15, and the amount of ozone-containing air is adjusted with the ozone flow meter 14 so that the ozone concentration in the air after mixing is 2 ppm.
オゾン２ ｐｐｍを含有する空気は触媒１ｍ（触媒充て
んｉ：２Ｂ−φＸ Ｓ Ｏｍｌ！ ， １ ａ ５ａｍ
” ）１７に入ｂ１オゾン分解後は処理ガス１８として
排出した。Air containing 2 ppm of ozone was added to the catalyst 1 m (catalyst filling i: 2B-φX S Oml!, 1 a 5 am
) 17 and after b1 ozone decomposition, it was discharged as treated gas 18.
そして入口及び出口のオゾン濃度は入口オゾンサンプリ
ング箇所１９と出口オゾンサンプリング箇所２０で測定
した。測定結果は次の表に示すように、Ｍｎ０．７の添
加率が４０〜７０重量％にシいてオゾン分解率９５％以
上を示し、６０重量％が最高の９８Ｘであった。The inlet and outlet ozone concentrations were measured at the inlet ozone sampling point 19 and the outlet ozone sampling point 20. As shown in the following table, the measurement results showed that the ozone decomposition rate was 95% or more when the Mn0.7 addition rate ranged from 40 to 70% by weight, and the highest value was 98X at 60% by weight.
従来のオゾン分解触媒は触媒層を５０’ｃ〜１００℃に
加熱し、高価な重金属ｐｔ等を使用していたが、本発明
によると安価な材料であるマンガン酸化物を使用するこ
とで常温（２５℃）においても９５％以上のオゾン分解
率を示す触媒が提供された。Conventional ozone decomposition catalysts heat the catalyst layer to 50'C to 100C and use expensive heavy metals such as PT, but according to the present invention, by using manganese oxide, which is an inexpensive material, it can be heated at room temperature ( A catalyst was provided that showed an ozone decomposition rate of 95% or more even at 25°C.
第１図は本発明において使用する活性酸化マンガンの調
製の一突施例を示す概略図、第２図は本発明の触媒によ
るオゾン分解試験法を説明する概略図である。FIG. 1 is a schematic diagram showing an example of the preparation of activated manganese oxide used in the present invention, and FIG. 2 is a schematic diagram illustrating an ozone decomposition test method using the catalyst of the present invention.
Claims (1)
ＭｎＯｘ（ｘ＝１．６〜１．８）を添加してなることを
特徴とするオゾン分解触媒。(1) An ozone decomposition catalyst characterized by adding 40 to 70% by weight of activated manganese oxide MnOx (x=1.6 to 1.8) to Chitalia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1150486A JPH0316640A (en) | 1989-06-15 | 1989-06-15 | Catalyst for decomposing ozone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1150486A JPH0316640A (en) | 1989-06-15 | 1989-06-15 | Catalyst for decomposing ozone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0316640A true JPH0316640A (en) | 1991-01-24 |
Family
ID=15497929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1150486A Pending JPH0316640A (en) | 1989-06-15 | 1989-06-15 | Catalyst for decomposing ozone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0316640A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006528055A (en) * | 2003-06-19 | 2006-12-14 | キャリア コーポレイション | Bifunctional manganese oxide / titanium dioxide photocatalyst / thermal catalyst |
-
1989
- 1989-06-15 JP JP1150486A patent/JPH0316640A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006528055A (en) * | 2003-06-19 | 2006-12-14 | キャリア コーポレイション | Bifunctional manganese oxide / titanium dioxide photocatalyst / thermal catalyst |
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