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특허 상세정보

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Method for preparing a zirconium-cerium composite oxide

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C01F-017/00    C01G-025/02    B01J-023/00    B01J-023/10   
미국특허분류(USC) 423/593 ; 502/304 ; 502/349
출원번호 US-0331821 (1999-06-22)
우선권정보 JP0349679 (1996-12-27)
국제출원번호 PCT/JP97/04786 (1997-12-24)
§371/§102 date 19990622 (19990622)
국제공개번호 WO-9829341 (1998-07-09)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Darby & Darby
인용정보 피인용 횟수 : 38  인용 특허 : 5
초록
▼

A zirconium--cerium composite oxide having excellent heat resistance and being capable of maintaining its large specific surface area even when used under high-temperature conditions, which composite oxide contains zirconium and cerium at a weight ratio of 51 to 95:49 to 5 in terms of zircomium oxide and ceric oxide, the composite oxide having a specific surface area of not smaller than 50 m.sup.2 /g, wherein said composite oxide is capable of maintaining a specific surface area of not smaller than 20 m.sup.2 /g even after heating at 1100.degree. C. for ...

대표
청구항
▼

[ What is claimed is:] [1.] A method for preparing the zirconium--cerium composite oxide comprising zirconium and cerium at a weight ratio in a range of 51 to 95:49 to 5 in terms of zirconium oxide and ceric oxide, said composite oxide having a specific surface area of not smaller than 50 m.sup.2 /g, wherein said composite oxide is capable of maintaining a specific surface area of not smaller than 20 m.sup.2 /g even after heating at 1100.degree. C. for 6 hours, said method comprising the steps of:reacting under heating a mixture comprising zirconium hydr...

이 특허에 인용된 특허 (5)

  1. Matsumoto Shinichi (Aichi JPX) Miyoshi Naoto (Nagoya JPX) Kimura Mareo (Nagoya JPX) Ozawa Masakuni (Kasugai JPX) Isogai Akio (Nagoya JPX). Catalyst for the purification of exhaust gas. USP1990054927799.
  2. Chopin Thierry,FRX ; Touret Olivier,FRX. Cerium/zirconium mixed oxide catalysts having high/stable specific surface areas. USP1998015712218.
  3. Chopin Thierry,FRX ; Touret Olivier,FRX ; Vilmin Gabriel. Thermally stable/highly reducible catalyst compositions comprising alumina and the oxides of cerium and zirconium. USP1999035883037.
  4. Matsui Koji,JPX. Zirconia fine powder and method for its production. USP2000026030914.
  5. Chopin Thierry (Saint Denis FRX) Vilmin Gabriel (Princeton NJ). Zirconium/cerium mixed oxide catalyst/catalyst support compositions having high/stable specific surfaces. USP1997055626826.

이 특허를 인용한 특허 피인용횟수: 38

  1. Sakai, Shigeru; Kimura, Yuji. Aqueous slurry of rare earth hydroxide particles. USP2004016673143.
  2. Engels, Alexander; Hämmerle, Alfred. Block and method of making. USP2011098025992.
  3. Taguchi,Kiyoshi; Ukai,Kunihiro; Wakita,Hidenobu; Fujihara,Seiji. CO removal catalyst, method of producing CO removal catalyst, hydrogen purifying device and fuel cell system. USP2007097265076.
  4. Shiang Sung. Catalyst composition for purifying exhaust gas. USP2002126492297.
  5. Seabaugh,Matthew M.; Swartz,Scott L.; Dawson,William J.; McCormick,Buddy E.. Ceramic electrolyte coating and methods. USP2007087261833.
  6. Shingai, Yasuharu; Itoh, Tomoharu; Nagoh, Wataru. Ceria-zirconia-based composite oxide and method of production of the same. USP20180710010868.
  7. Ota, Isao; Tanimoto, Kenji; Nishimura, Tohru. Cerium oxide sol and abrasive. USP2011027887714.
  8. Kuno, Oji. Cerium-zirconium composite metal oxide. USP201403RE44802.
  9. Kuno,Oji. Cerium-zirconium composite metal oxide. USP2008067384888.
  10. Yamazaki, Masatoshi; Anno, Yuichi; Shinoda, Kiyoshi; Yashima, Isamu. Co-catalyst for purifying exhaust gas. USP2004126831036.
  11. Maunula, Teuvo; Kärkkäinen, Marja; Juvonen, Pasi; Matilainen, Pekka. Coating for particulate filters. USP2017099765661.
  12. Murota, Tadatoshi. Composite oxide. USP2013038389436.
  13. Murota, Tadatoshi; Ono, Shigeru; Tahara, Tomonori. Composite oxide. USP20190410258964.
  14. Larcher, Olivier; Moissonnier, Philippe; Rohart, Emmanuel. Composition based on zirconium oxides, praseodymium, lanthanum or neodymium, method for the preparation and use thereof in a catalytic system. USP2015119181104.
  15. Larcher, Olivier; Rohart, Emmanuel. Compositions based on cerium oxide, zirconium oxide and, optionally, another rare earth oxide, having a specific raised surface at 1100° C, method for the production and use thereof as a catalyst. USP2013068460626.
  16. Chigapov,Albert Nazipovich; Graham,George Wade; Gandhi,Haren Sakaral; Jen,Hung Wen. Exhaust gas catalyst and method of manufacturing same. USP2007067229948.
  17. Shigapov, Albert Nazipovich; Graham, George Wade; Gandhi, Haren Sakaral; Jen, Hung-Wen. Exhaust gas catalyst and method of manufacturing same. USP2005056893998.
  18. Honda, Tomohiro; Urai, Tomoaki; Fujimoto, Ryota; Miyoshi, Seiji; Yamada, Hiroshi; Iwakuni, Hideharu; Harada, Koichiro; Minoshima, Koji; Takami, Akihide. Exhaust gas purification catalyst. USP2010047691778.
  19. Urai, Tomoaki; Honda, Tomohiro; Kurata, Katsuaki; Iwakuni, Hideharu; Takami, Akihide. Exhaust gas purifying catalyst. USP2010047696127.
  20. Yoshikawa, Tatsuya. Exhaust gas purifying catalyst. USP2004096797668.
  21. Matsueda, Satoshi; Kimura, Mareo; Narita, Keiichi. Exhaust gas-purifying catalyst. USP2012058187996.
  22. LaBarge,William J.; Bonadies,Joseph V.; Kupe,Joachim. Exhaust treatment devices, catalyst, and methods of making and using the same. USP2008117452843.
  23. Larcher, Olivier; Rohart, Emmanuel; Verdier, Stephan. High specific surface/reducibility catalyst/catalyst support compositions comprising oxides of zirconium, cerium and lanthanum and of yttrium, gadolinium or samarium. USP2014058728435.
  24. Sato, Yasushi; Goto, Akira; Samura, Ken; Fuju, Akira; Kadowaki, Masataka. Hydrogen production apparatus, fuel cell system and operation method thereof. USP2015089112201.
  25. Kuno, Oji. Method for preparing metal oxide particles and an exhaust gas purifying catalyst. USP201408RE45083.
  26. Kuno,Oji. Method for preparing metal oxide particles and an exhaust gas purifying catalyst. USP2008017314846.
  27. Rheinberger, Volker M.; Schweiger, Marcel; Kruse, Robert; Kerschbaumer, Harald. Multi-colored shaped body. USP2014058721336.
  28. Rheinberger, Volker M.; Schweiger, Marcel; Kruse, Robert; Kerschbaumer, Harald. Multi-colored shaped body. USP2014048691122.
  29. Shimazu, Takashi; Tsuji, Ryusuke; Sobukawa, Hideo; Seno, Yoshiki. Nanoporous metal oxide material, catalyst support, and catalyst for hydrogen production reaction using the same. USP2010117838460.
  30. Anatoly I. Bortun ; John Gerard Nunan. Niobium containing zirconium-cerium based soild solutions. USP2002106468941.
  31. Bortun, Anatoly I.; Nunan, John Gerard. Niobium containing zirconium-cerium based solid solutions. USP2003086605264.
  32. Luo, Tian; Deeba, Michel. Oxygen storage catalyst with decreased ceria reduction temperature. USP2013098530372.
  33. Bradshaw, Heather; Norman, Colin. Oxygen storage component. USP2013048414835.
  34. Akama, Hiroshi; Onodera, Hitoshi; Nishizawa, Toru; Hanaki, Yasunari; Morisaka, Hideaki. Particulate matter purifying material, filter catalyst for purifying particulate matter using particulate matter purifying material, and method of regenerating filter catalyst for purifying particulate matter. USP2015129222382.
  35. Pickering, Stephen; Djuricic, Boro. Precipitation process. USP2004116811758.
  36. Larcher, Olivier; Rohart, Emmanuel. Reduced maximum reducibility temperature zirconium oxide and cerium oxide based composition, method for the production and use thereof as a catalyst. USP2010087767617.
  37. Takeshima, Shinichi; Yoshida, Kohei; Nakano, Yasuaki. Storage-reduction type NOx purifying catalyst. USP2005106956008.
  38. Okamoto, Hiroshi. Zirconia-based mixed oxide and production process thereof. USP2010087781365.

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