JPS63178849A - Oxidation catalyst - Google Patents
Oxidation catalystInfo
- Publication number
- JPS63178849A JPS63178849A JP62009967A JP996787A JPS63178849A JP S63178849 A JPS63178849 A JP S63178849A JP 62009967 A JP62009967 A JP 62009967A JP 996787 A JP996787 A JP 996787A JP S63178849 A JPS63178849 A JP S63178849A
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- oxidation catalyst
- mixed powder
- manganese dioxide
- metal oxide
- 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 25
- 230000003647 oxidation Effects 0.000 title claims abstract description 22
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 22
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000011812 mixed powder Substances 0.000 claims abstract description 17
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 16
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 12
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 12
- -1 Polyethylene Polymers 0.000 claims abstract description 6
- 239000004698 Polyethylene Substances 0.000 claims abstract description 3
- 229920000573 polyethylene Polymers 0.000 claims abstract description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 8
- 239000004677 Nylon Substances 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 9
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052804 chromium Inorganic materials 0.000 abstract description 2
- 239000011651 chromium Substances 0.000 abstract description 2
- 229910017052 cobalt Inorganic materials 0.000 abstract description 2
- 239000010941 cobalt Substances 0.000 abstract description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 239000010936 titanium Substances 0.000 abstract description 2
- 229910052719 titanium Inorganic materials 0.000 abstract description 2
- 239000004952 Polyamide Substances 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 238000000151 deposition Methods 0.000 abstract 1
- 229920002647 polyamide Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 9
- 239000011230 binding agent Substances 0.000 description 6
- 239000005751 Copper oxide Substances 0.000 description 5
- 229910000431 copper oxide Inorganic materials 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 229910002090 carbon oxide Inorganic materials 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(i) oxide Chemical compound [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 229920006163 vinyl copolymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は酸化触媒に関するものである。更に詳しくは、
ガス安全マスク、地下駐車場等で一酸化炭素除去剤とし
て用いられる酸化触媒に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an oxidation catalyst. For more details,
It relates to oxidation catalysts used as carbon monoxide removers in gas safety masks, underground parking lots, etc.
（従来の技術および発明が解決しようとする問題点）
従来、−酸化炭素除去剤として、二酸化マンガンの塊状
物と酸化銅（ＩＩ）の塊状物を粗砕して適当な粒径に整
粒し混合したもの、あるいは二酸化マンガン粉末と酸化
銅（Ｉｆ）粉末を混合した後アルミナセメント等の結合
剤を加え成形したもの等が用いられている。(Prior art and problems to be solved by the invention) Conventionally, as a carbon oxide removal agent, manganese dioxide lumps and copper (II) oxide lumps were coarsely crushed and sized to an appropriate particle size. A mixture of manganese dioxide powder and copper oxide (If) powder is used, or a mixture of manganese dioxide powder and copper oxide (If) powder is used, followed by adding a binder such as alumina cement and forming the mixture.
しかし、前述のような粗砕、整粒によって得られる除去
剤は有効な反応表面積が小さいという欠点を有し、一方
結合剤で成形して得られる除去剤は表面の活性部分が結
合剤で覆われるため、除去能力が劣るという問題点があ
る。However, the remover obtained by crushing and sizing as described above has the disadvantage of having a small effective reaction surface area, while the remover obtained by molding with a binder has the active part of the surface covered with the binder. There is a problem that the removal ability is inferior because of the
（問題点を解決するための手段）
本発明者等は上記問題点を解決するために鋭意検討を行
った結果、熱可塑性樹脂を基体とすることにより、有効
な反応表面積が大きい酸化触媒が得られるという知見を
得七本発明を完成させるに至った。(Means for Solving the Problems) The present inventors have conducted extensive studies to solve the above problems, and have found that an oxidation catalyst with a large effective reaction surface area can be obtained by using a thermoplastic resin as a base. We have obtained the knowledge that the present invention can be completed.
すなわち、本発明は粒状の熱可塑性樹脂の表面に二酸化
マンガンと他の金属酸化物との混合粉末を担持してなる
酸化触媒である。That is, the present invention is an oxidation catalyst formed by supporting a mixed powder of manganese dioxide and other metal oxides on the surface of a granular thermoplastic resin.
本発明の酸化触媒は粒状の熱可塑性樹脂と二酸化マンガ
ンと他の金属酸化物との混合粉末を原料として用い、こ
れらの原料を例えばロータリーエバポレーターに装入し
、加熱しながら回転させ混合することにより得ることが
できる。The oxidation catalyst of the present invention uses a mixed powder of granular thermoplastic resin, manganese dioxide, and other metal oxides as a raw material, and by charging these raw materials into, for example, a rotary evaporator and rotating and mixing them while heating. Obtainable.
このとき加熱を行うのは、熱可塑性樹脂の表面に二酸化
マンガンと他の金属酸化物との混合粉末を担持させ易く
するためであり、その加熱温度は用いた熱可塑性樹脂の
融点の±５０℃であることが好ましい。これより低い温
度の場合、混合粉末の担持がうまく行なわれないおそれ
があり、高い温度の場合、熱可塑性樹脂全部が溶けてし
まうおそれがある。The purpose of heating at this time is to make it easier to support the mixed powder of manganese dioxide and other metal oxides on the surface of the thermoplastic resin, and the heating temperature is ±50°C of the melting point of the thermoplastic resin used. It is preferable that If the temperature is lower than this, there is a risk that the mixed powder will not be supported properly, and if the temperature is high, there is a risk that the entire thermoplastic resin will melt.
重合体、ナイロン、ポリスチレン、スチレン−イソプレ
ン共重合体またはこれらの２種以上の混合物を挙げるこ
とができる。その粒径は一酸化炭素除去用の酸化触媒の
一般的な粒径である１、０〜２．０ｍｍでよい。Polymers, nylon, polystyrene, styrene-isoprene copolymers, or mixtures of two or more thereof can be mentioned. The particle size may be 1.0 to 2.0 mm, which is the general particle size of oxidation catalysts for removing carbon monoxide.
また他の金属酸化物としては、銅、コバルト。Other metal oxides include copper and cobalt.
クロム、鉄、チタンの酸化物または活性アルミナ等を用
いることができるが、特に本発明においては酸化銅（ｎ
）が好ましく用いられる。Although oxides of chromium, iron, titanium, activated alumina, etc. can be used, copper oxide (n
) is preferably used.
混合粉末の混合比は、用いる他の金属酸化物によって異
なるが、酸化銅（Ｉ）の場合、用いた二酸化マンガンの
２５重量％以上混合することが好ましく、二酸化マンガ
ンと酸化銅（ＩＩ）の混合比が６０＝４０のときが最も
好ましい。The mixing ratio of the mixed powder varies depending on the other metal oxides used, but in the case of copper (I) oxide, it is preferable to mix at least 25% by weight of the manganese dioxide used, and the mixture of manganese dioxide and copper (II) oxide Most preferred is a ratio of 60=40.
得られる酸化触媒の有効な反応表面積を大きくするため
には、熱可塑性樹脂の表面に担持する混合粉末の粒径を
小さくすればよいが、１ＤＯμｍ以下とすることが好ま
しい。更に、用いる混合粉末の量が多ければ、樹脂に担
持する混合粉末の量が増し、有効な反応表面積は大きく
なるので、用いる混合粉末の重量は樹脂の重量の３倍以
上であることが好ましい。In order to increase the effective reaction surface area of the resulting oxidation catalyst, the particle size of the mixed powder supported on the surface of the thermoplastic resin may be reduced, but it is preferably 1 DO μm or less. Furthermore, if the amount of the mixed powder used is large, the amount of the mixed powder supported on the resin increases, and the effective reaction surface area increases, so it is preferable that the weight of the mixed powder used is at least three times the weight of the resin.
（実施例）
以下、実施例忙基づき本発明を説明するが、本発明はこ
れらに限定されるものではない。(Examples) The present invention will be described below based on Examples, but the present invention is not limited thereto.
実施例に
酸化マンガンと酸化銅（ｎ）の重量比が６０：４０で、
粒径が１０μｍ以下の混合粉末と粒径ｔＯ〜２．０ｍの
エチレン−酢酸ビニル共重合体の粒状物（融点７５℃）
を重量比５：１としてロータリーエバポレーターに装入
した。次いで、油浴を用い１１０℃に加熱しながらロー
タリーエバポレーターを１時間回転させ、エチレン−酢
ｉ１１！ビニル共重合体の粒状物表面に混合粉末を担持
させた。In the example, the weight ratio of manganese oxide and copper oxide (n) was 60:40,
Granules of mixed powder with a particle size of 10 μm or less and ethylene-vinyl acetate copolymer with a particle size of tO ~ 2.0 m (melting point 75°C)
were charged into a rotary evaporator at a weight ratio of 5:1. Next, a rotary evaporator was rotated for 1 hour while heating to 110°C using an oil bath, and the ethylene-vinegar i11! The mixed powder was supported on the surface of the vinyl copolymer particles.
その後熱水洗を行ない、水酸化す） ＩＪウムを用いて
ｐＨを調整しほぼ中性とし、乾燥して酸化触媒を得た。Thereafter, the mixture was washed with hot water, the pH was adjusted to almost neutral using IJium (hydroxide), and the mixture was dried to obtain an oxidation catalyst.
得られた酸化触媒を用いて、−酸化炭素除去の性能試験
を行った。試験は一酸化炭素濃度１５００ｐｐｍに調整
した空気をカラムにて空間速度（時間当たりに触媒層を
通過する流量を触媒量で割った値）ｅＶ−１２０（１７
分）、線速度（時間当たりの通過流量を通過面積で割っ
た値）ＬＶ−５，９８（ｍ７分）で連続して流して行っ
た。３分後に酸化触媒を通過した空気の一酸化炭素濃度
を表−１に示す。Using the obtained oxidation catalyst, a performance test for removing carbon oxide was conducted. The test was carried out using air adjusted to a carbon monoxide concentration of 1500 ppm in a column at a space velocity (value obtained by dividing the flow rate passing through the catalyst layer per hour by the amount of catalyst) eV-120 (17
The flow was carried out continuously at a linear velocity (value obtained by dividing the passing flow rate per hour by the passing area) of LV-5.98 (m7 minutes). Table 1 shows the carbon monoxide concentration of the air that passed through the oxidation catalyst after 3 minutes.
実施例２
熱可塑性樹脂として粒径１．０〜２．０關のポリエチレ
ン粒状物（融点１１８℃）を用い、加熱温度を１４０℃
とした以外は実施例１と同様の方法で酸化触媒を得た。Example 2 Polyethylene granules (melting point 118°C) with a particle size of 1.0 to 2.0°C were used as the thermoplastic resin, and the heating temperature was 140°C.
An oxidation catalyst was obtained in the same manner as in Example 1 except that:
得られた酸化触媒を用いて実施例１と同様の一酸化炭素
除去の性能試験を行った。その結果を表−ＩＫ示す。The same carbon monoxide removal performance test as in Example 1 was conducted using the obtained oxidation catalyst. The results are shown in Table IK.
比較例
二酸化マンガンと酸化銅（ｌ［）の重量比が６０：４０
の混合粉末に結合剤としてアルミナセメントを加え塊状
とした後、粒径１．Ｄ〜２．０關に粉砕整粒して酸化触
媒を得た。Comparative example: The weight ratio of manganese dioxide and copper oxide (l[) is 60:40.
After adding alumina cement as a binder to the mixed powder and making it into a lump, the particle size was 1. The oxidation catalyst was obtained by pulverizing and sizing to D~2.0.
得られた酸化触媒を用いて実施例１と同様の一酸化炭素
除去の性能試験を行った。その結果を表−１に示す。The same carbon monoxide removal performance test as in Example 1 was conducted using the obtained oxidation catalyst. The results are shown in Table-1.
表−１
表−１において、本発明の酸化触媒は、通過した空気の
一酸化炭素の濃度が低いことがら、空気中の一酸化炭素
を除去する能力に優れていることがわかる。Table 1 In Table 1, it can be seen that the oxidation catalyst of the present invention has an excellent ability to remove carbon monoxide from the air since the concentration of carbon monoxide in the air through which it passes is low.
（発明の効果）
以上述べたとおり、粒状の熱可塑性樹脂の表面に二酸化
マンガンと他の金属酸化物の混合粉末を担持した本発明
の酸化触媒は、結合剤を用いずに得ることができるので
、表面の活性部分は結合剤で覆われておらず、有効な反
応表面積も太きい。(Effects of the Invention) As described above, the oxidation catalyst of the present invention in which a mixed powder of manganese dioxide and other metal oxides is supported on the surface of a granular thermoplastic resin can be obtained without using a binder. , the active part of the surface is not covered by the binder, and the effective reaction surface area is also large.
従って、−酸化炭素を除去する能力が著しく優れ、また
全体が二酸化マンガンと他の金属酸化物だけからなる酸
化触媒よりも安価に得られることから、−酸化炭素除去
剤として用いられる酸化触媒としては最適である。Therefore, - it has a significantly superior ability to remove carbon oxide, and it is less expensive to obtain than an oxidation catalyst consisting entirely of manganese dioxide and other metal oxides; Optimal.
Claims (3)
の金属酸化物との混合粉末を担持してなる酸化触媒。(1) An oxidation catalyst formed by supporting a mixed powder of manganese dioxide and other metal oxides on the surface of a granular thermoplastic resin.
レン、エチレン−酢酸ビニル共重合体、ナイロン、ポリ
スチレン、スチレン−イソプレン共重合体またはこれら
の２種以上の混合物を用いる特許請求の範囲第（１）項
に記載の酸化触媒。(2) Claim (1) uses polyethylene, polypropylene, ethylene-vinyl acetate copolymer, nylon, polystyrene, styrene-isoprene copolymer, or a mixture of two or more thereof as the thermoplastic resin. The oxidation catalyst described.
許請求の範囲第（１）項又は第（２）項に記載の酸化触
媒。(3) The oxidation catalyst according to claim (1) or (2), in which copper (II) oxide is used as the other metal oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62009967A JPS63178849A (en) | 1987-01-21 | 1987-01-21 | Oxidation catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62009967A JPS63178849A (en) | 1987-01-21 | 1987-01-21 | Oxidation catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63178849A true JPS63178849A (en) | 1988-07-22 |
Family
ID=11734699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62009967A Pending JPS63178849A (en) | 1987-01-21 | 1987-01-21 | Oxidation catalyst |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63178849A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0829299A1 (en) * | 1995-05-26 | 1998-03-18 | Hitachi Chemical Co., Ltd. | Environment purifying material |
-
1987
- 1987-01-21 JP JP62009967A patent/JPS63178849A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0829299A1 (en) * | 1995-05-26 | 1998-03-18 | Hitachi Chemical Co., Ltd. | Environment purifying material |
| EP0829299A4 (en) * | 1995-05-26 | 1999-02-10 | Hitachi Chemical Co Ltd | Environment purifying material |
| US5997829A (en) * | 1995-05-26 | 1999-12-07 | Hitachi Chemical Company, Ltd. | Environment purifying material |
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