JPS61249541A - Oxidizing catalyst - Google Patents
Oxidizing catalystInfo
- Publication number
- JPS61249541A JPS61249541A JP60090026A JP9002685A JPS61249541A JP S61249541 A JPS61249541 A JP S61249541A JP 60090026 A JP60090026 A JP 60090026A JP 9002685 A JP9002685 A JP 9002685A JP S61249541 A JPS61249541 A JP S61249541A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- oxide
- alumina
- catalyst
- cuco2o4
- 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 21
- 230000001590 oxidative effect Effects 0.000 title abstract 3
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims abstract description 4
- 230000003647 oxidation Effects 0.000 claims description 14
- 238000007254 oxidation reaction Methods 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- -1 wire mesh Substances 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical group [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 239000011230 binding agent Substances 0.000 claims 1
- 239000000919 ceramic Substances 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 229910052878 cordierite Inorganic materials 0.000 claims 1
- 239000013078 crystal Substances 0.000 claims 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims 1
- 239000003779 heat-resistant material Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 5
- 229910016506 CuCo2O4 Inorganic materials 0.000 abstract description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 abstract description 2
- 239000005751 Copper oxide Substances 0.000 abstract description 2
- 229910002651 NO3 Inorganic materials 0.000 abstract description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract description 2
- 229910000428 cobalt oxide Inorganic materials 0.000 abstract description 2
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 abstract description 2
- 229910000431 copper oxide Inorganic materials 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 229930195733 hydrocarbon Natural products 0.000 abstract description 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 2
- 239000011261 inert gas Substances 0.000 abstract description 2
- 239000003345 natural gas Substances 0.000 abstract description 2
- 239000012808 vapor phase Substances 0.000 abstract description 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 235000011089 carbon dioxide Nutrition 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 238000007751 thermal spraying Methods 0.000 abstract 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 230000010718 Oxidation Activity Effects 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000272814 Anser sp. Species 0.000 description 1
- 241000270322 Lepidosauria Species 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Landscapes
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は排ガス浄化、脱臭、あるいはプロパンガス、都
市ガスあるいは灯油、軽油等を触媒燃焼させる酸化触媒
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 purifying and deodorizing exhaust gas, or for catalytically burning propane gas, city gas, kerosene, light oil, etc.
従来の技術
一般に未燃の炭化水素を空気の存在下、炭酸ガスと水蒸
気に完全酸化させる酸化触媒については白金、バラジク
ム、ロジウム等の白金族が最も活性が高い。このためア
ルミナ、シリカ等の各種担体に担持させた白金族系触媒
が酸化触媒として使用されている。一方コバルト、ニッ
ケル、鉄等ノいわゆる非金属については単独の金属酸化
物としてよりも、最近では各種複合酸化物が検討されて
いる（例えば中村、御園生ら、８化、１９８０゜１６７
９）。ＣｕＣｏ２Ｏ４についてはＫｉｎ Ｎｏｂｅ（
９ｎｄ、 Ｅｎｇ、 Ｃｈａｍ、、 Ｐ ｒ ｏｄ、Ｒ
ｅｓ、Ｄｅｖ、、 ｖｏ １．１４ ｒ Ｎｏ、 ３＋
１９７５．１４２）に酸化活性が高いことが報告されて
いる。BACKGROUND OF THE INVENTION In general, platinum group metals such as platinum, baladicum, and rhodium have the highest activity as oxidation catalysts that completely oxidize unburned hydrocarbons into carbon dioxide gas and water vapor in the presence of air. For this reason, platinum group catalysts supported on various carriers such as alumina and silica are used as oxidation catalysts. On the other hand, for so-called nonmetals such as cobalt, nickel, and iron, various composite oxides have recently been investigated rather than individual metal oxides (for example, Nakamura, Misono et al., 8th Edition, 1980°167
9). For CuCo2O4, see Kin Nobe (
9th, Eng, Cham, Prod, R
es, Dev,, vo 1.14 r No, 3+
1975.142) reported that it has high oxidation activity.
発明が解決しようとする問題点
白金、ロジウム、パラジクム等の白金族はそれ自体酸化
活性が高いが、耐熱性に問題があり、コスト的にも高い
という問題がある。一方ニッケル、コバルト、鉄等の遷
移金属の各種組合せによる複合酸化物については表面積
が小さく、触媒活性が低いという問題がある。即ち、一
般に複合酸化物を調整するには量論比に混合した酸化物
の焼成。Problems to be Solved by the Invention Platinum group metals such as platinum, rhodium, and palladium themselves have high oxidation activity, but they have problems in heat resistance and high cost. On the other hand, composite oxides made of various combinations of transition metals such as nickel, cobalt, and iron have a problem of small surface area and low catalytic activity. That is, in general, to prepare a composite oxide, oxides mixed in a stoichiometric ratio are fired.
あるいは硝酸塩、塩化物等各種塩の混合溶液を蒸発、分
解、焼成するという方法がある。あるいは各種混合塩の
溶液にアンモニア、カセイソーダ（ＮｏＯＨ）等の沈殿
剤を加え沈殿を形成後、洗浄、焼成により調整するとい
う方法があるが、いづれの方法にしても焼成後の表面積
は２〜５ｎｔ／ｆであり、その結果活性が低いという問
題があった。Alternatively, there is a method in which a mixed solution of various salts such as nitrates and chlorides is evaporated, decomposed, and calcined. Alternatively, there is a method in which a precipitant such as ammonia or caustic soda (NoOH) is added to a solution of various mixed salts to form a precipitate, which is then washed and calcined to adjust the surface area. /f, resulting in a problem of low activity.
本発明は複合酸化物のうち、ＣｕＣ０２ｏ４について新
しい調整法を提供することにより従来の複合酸化物が表
面積が小さく活性が低いという問題を解決しようとする
ものである。The present invention aims to solve the problem that conventional composite oxides have a small surface area and low activity by providing a new method for adjusting CuC02o4 among composite oxides.
問題点を解決するための手段
この問題を解決するためにプラズマ、電子ビーム、アー
ク等をゆるい減圧中で照射し微粉末を作製するという蒸
発ガス法を採用した。Means for Solving the Problem In order to solve this problem, we adopted the evaporative gas method, which involves producing fine powder by irradiating plasma, electron beam, arc, etc. in a mildly reduced pressure.
作 用
蒸発ガス法は気相法による微粒子の作製方法であり、触
媒の表面積が４０〜６０ｄ／ｆと非常に大きくなり、そ
の結果酸化活性が向上した。Function The evaporative gas method is a method for producing fine particles using a gas phase method, and the surface area of the catalyst is extremely large at 40 to 60 d/f, resulting in improved oxidation activity.
実施例
以下本発明による酸化触媒を利用した天然ガスの触媒燃
焼器について図面に基づき説明する。図に示すごとく本
実施例の触媒燃焼器本体ケース１の前面には金網２及び
背面パネル３に保持された酸化触媒体４がある。酸化触
媒体４は酸化銅と酸化コバルトを量論比に混合したもの
を減圧した容器の中に一部アルゴン、窒素等の不活性ガ
スを入れたのち、アーク溶射を行い気相法によって作製
したＣｕＣｏ２Ｏ４の粉末を硝酸アルミナと共にシート
状のアルミナ繊維に担持したものである。次にガス量の
コントロールを行うガスコック５が零体グース１前面下
部にある。EXAMPLES A natural gas catalytic combustor using an oxidation catalyst according to the present invention will be described below with reference to the drawings. As shown in the figure, on the front side of the catalytic combustor body case 1 of this embodiment, there is an oxidation catalyst body 4 held on a wire mesh 2 and a back panel 3. The oxidation catalyst 4 was prepared by a vapor phase method by placing a mixture of copper oxide and cobalt oxide in a stoichiometric ratio into a reduced-pressure container, partially containing an inert gas such as argon or nitrogen, and then performing arc spraying. CuCo2O4 powder is supported on sheet-like alumina fibers together with alumina nitrate. Next, a gas cock 5 for controlling the amount of gas is located at the lower front of the zero body goose 1.
次にその作用について述べる。Next, we will discuss its effect.
ガスコック５を開くことにより流れてきたガスは酸化触
媒体４下部の点火プラグ（図示せず）により酸化触媒体
４上で均一に火炎を形成する。この火炎により酸化触媒
体４は予熱された後触媒燃焼に移行し、ガスは水蒸気と
炭酸ガスに完全に酸化される。この時に発生する熱を暖
房用として利用する。The gas flowing by opening the gas cock 5 forms a flame uniformly on the oxidation catalyst body 4 by a spark plug (not shown) at the lower part of the oxidation catalyst body 4. After the oxidation catalyst body 4 is preheated by this flame, it shifts to catalytic combustion, and the gas is completely oxidized into water vapor and carbon dioxide gas. The heat generated at this time is used for heating purposes.
発明の効果
以上のように本発明によりＣｕＣｏ２Ｏ４なる組成をも
つ複合酸化物を蒸発ガス法により作製することにより粒
子径が小さく、表面積の大きい活性の高い酸化触媒体を
得ることが出来た。Effects of the Invention As described above, according to the present invention, a highly active oxidation catalyst having a small particle size and a large surface area could be obtained by producing a composite oxide having a composition of CuCo2O4 by an evaporative gas method.
図は本発明の一実施例である蒸発ガス法により作製した
ＣｕＣｏ２Ｏ４なる組成をもつ複合酸化物からなる酸化
触媒体を搭載した触媒燃焼器の一部断面の斜視図である
。
４・・・・・・酸化触媒体。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名４・
・・西斐Ａ二角曵々芋イ蓼The figure is a partial cross-sectional perspective view of a catalytic combustor equipped with an oxidation catalyst made of a composite oxide having a composition of CuCo2O4, which was produced by an evaporative gas method and is an embodiment of the present invention. 4... Oxidation catalyst. Name of agent: Patent attorney Toshio Nakao and 1 other person 4.
・・Saihi A two-cornered lizard
Claims (2)
化物を、Ａは銅、Ｂはコバルトで構成したＣｕＣｏ＿２
Ｏ＿４を量論比に混合した酸化物にプラズマあるいはア
ーク溶射を行う蒸発ガス法で作製した酸化触媒。(1) CuCo_2 is a composite oxide represented by the crystal structure AB_2O_4, where A is copper and B is cobalt.
An oxidation catalyst made by the evaporative gas method, in which plasma or arc spraying is applied to an oxide mixed with O_4 in a stoichiometric ratio.
ルミナ等の無機バインダを混合しアルミナ、シリカ、コ
ージライト等の無機耐熱材料をハニカム状に成形したも
のあるいは発泡セラミック、発泡メタル、金網、シリカ
ファイバ、アルミナファイバ等に担持した特許請求の範
囲第１項記載の酸化触媒。(2) A mixture of composite oxide powder with a crystalline structure and an inorganic binder such as colloidal alumina and formed into a honeycomb shape from an inorganic heat-resistant material such as alumina, silica, cordierite, or foamed ceramic, foamed metal, wire mesh, or silica. The oxidation catalyst according to claim 1 supported on a fiber, an alumina fiber, or the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60090026A JPS61249541A (en) | 1985-04-26 | 1985-04-26 | Oxidizing catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60090026A JPS61249541A (en) | 1985-04-26 | 1985-04-26 | Oxidizing catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61249541A true JPS61249541A (en) | 1986-11-06 |
Family
ID=13987166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60090026A Pending JPS61249541A (en) | 1985-04-26 | 1985-04-26 | Oxidizing catalyst |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61249541A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1405670A1 (en) * | 2002-10-02 | 2004-04-07 | Delphi Technologies, Inc. | Direct application of catalysts to substrates via a thermal spray process for treatment of the atmosphere |
| US6872427B2 (en) | 2003-02-07 | 2005-03-29 | Delphi Technologies, Inc. | Method for producing electrical contacts using selective melting and a low pressure kinetic spray process |
| US6896933B2 (en) | 2002-04-05 | 2005-05-24 | Delphi Technologies, Inc. | Method of maintaining a non-obstructed interior opening in kinetic spray nozzles |
| US6949300B2 (en) | 2001-08-15 | 2005-09-27 | Delphi Technologies, Inc. | Product and method of brazing using kinetic sprayed coatings |
| US7001671B2 (en) | 2001-10-09 | 2006-02-21 | Delphi Technologies, Inc. | Kinetic sprayed electrical contacts on conductive substrates |
| US7108893B2 (en) | 2002-09-23 | 2006-09-19 | Delphi Technologies, Inc. | Spray system with combined kinetic spray and thermal spray ability |
| WO2006106624A1 (en) * | 2005-03-31 | 2006-10-12 | Mitsui Mining & Smelting Co., Ltd. | Composite oxide particle having black color |
| JP2006306712A (en) * | 2005-03-31 | 2006-11-09 | Mitsui Mining & Smelting Co Ltd | Composite oxide particle having black color |
| US7351450B2 (en) | 2003-10-02 | 2008-04-01 | Delphi Technologies, Inc. | Correcting defective kinetically sprayed surfaces |
| US7674076B2 (en) | 2006-07-14 | 2010-03-09 | F. W. Gartner Thermal Spraying, Ltd. | Feeder apparatus for controlled supply of feedstock |
| JP2010202490A (en) * | 2009-02-04 | 2010-09-16 | Ngk Insulators Ltd | Method for producing transition metal oxide having spinel structure |
| CN103990459A (en) * | 2014-05-16 | 2014-08-20 | 上海纳米技术及应用国家工程研究中心有限公司 | Chromium-cobalt composite oxide catalyst as well as preparation and application thereof |
| CN112125348A (en) * | 2020-09-07 | 2020-12-25 | 上海应用技术大学 | Preparation method and application of ammonium perchlorate thermal decomposition catalytic material |
-
1985
- 1985-04-26 JP JP60090026A patent/JPS61249541A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6949300B2 (en) | 2001-08-15 | 2005-09-27 | Delphi Technologies, Inc. | Product and method of brazing using kinetic sprayed coatings |
| US7001671B2 (en) | 2001-10-09 | 2006-02-21 | Delphi Technologies, Inc. | Kinetic sprayed electrical contacts on conductive substrates |
| US6896933B2 (en) | 2002-04-05 | 2005-05-24 | Delphi Technologies, Inc. | Method of maintaining a non-obstructed interior opening in kinetic spray nozzles |
| US7108893B2 (en) | 2002-09-23 | 2006-09-19 | Delphi Technologies, Inc. | Spray system with combined kinetic spray and thermal spray ability |
| EP1405670A1 (en) * | 2002-10-02 | 2004-04-07 | Delphi Technologies, Inc. | Direct application of catalysts to substrates via a thermal spray process for treatment of the atmosphere |
| US6872427B2 (en) | 2003-02-07 | 2005-03-29 | Delphi Technologies, Inc. | Method for producing electrical contacts using selective melting and a low pressure kinetic spray process |
| US7351450B2 (en) | 2003-10-02 | 2008-04-01 | Delphi Technologies, Inc. | Correcting defective kinetically sprayed surfaces |
| WO2006106624A1 (en) * | 2005-03-31 | 2006-10-12 | Mitsui Mining & Smelting Co., Ltd. | Composite oxide particle having black color |
| JP2006306712A (en) * | 2005-03-31 | 2006-11-09 | Mitsui Mining & Smelting Co Ltd | Composite oxide particle having black color |
| US7674076B2 (en) | 2006-07-14 | 2010-03-09 | F. W. Gartner Thermal Spraying, Ltd. | Feeder apparatus for controlled supply of feedstock |
| JP2010202490A (en) * | 2009-02-04 | 2010-09-16 | Ngk Insulators Ltd | Method for producing transition metal oxide having spinel structure |
| CN103990459A (en) * | 2014-05-16 | 2014-08-20 | 上海纳米技术及应用国家工程研究中心有限公司 | Chromium-cobalt composite oxide catalyst as well as preparation and application thereof |
| CN112125348A (en) * | 2020-09-07 | 2020-12-25 | 上海应用技术大学 | Preparation method and application of ammonium perchlorate thermal decomposition catalytic material |
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