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AMMONIA SYNTHESIS CATALYST AND METHOD FOR PRODUCING SAME

外国特許コード F170009000
整理番号 S2015-0664-C0
掲載日 2017年3月23日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2016JP054941
国際公開番号 WO 2016133213
国際出願日 平成28年2月19日(2016.2.19)
国際公開日 平成28年8月25日(2016.8.25)
優先権データ
  • 20150-032192 JP
  • 特願2016-021712 (2016.2.8) JP
発明の名称 (英語) AMMONIA SYNTHESIS CATALYST AND METHOD FOR PRODUCING SAME
発明の概要(英語) The present invention provides a rare earth oxide-supported noble metal catalyst which has a high catalytic activity, is greatly improved in the ammonia production activity per weight of the catalyst and per amount of the supported metal, and enables the synthesis of ammonia under mild conditions. The catalyst according to the present invention is characterized in that ruthenium is supported in a layered form on a praseodymium oxide carrier. The catalyst according to the present invention can be produced by burning a praseodymium oxide precursor at a lower temperature, then at a medium temperature and then at a higher temperature to produce praseodymium oxide, then agitating the resultant praseodymium oxide together with a ruthenium supply source in a solvent, then removing the solvent from the mixture, and then burning the resultant product.
従来技術、競合技術の概要(英語) BACKGROUND ART
Ammonia, fertilizers used important chemical raw material which, in recent years has attracted attention as energy carrier. Particularly in recent years, ammonia is synthesized using renewable energy and attention has been paid to the catalytic processes.
Already in commercial hard bar using a catalyst of iron, is Bosch, high temperature, and high pressure processes, using renewable energy is difficult to operate the processes. For this reason, Cold Spring Harbor, mild than Bosch, i.e. low temperature and low pressure ammonia synthesis catalyst under conditions of high activity and has been a need to develop processes.
So far, a variety of carrier ruthenium is supported on a low-temperature, high ammonia activity even at low pressures has been reported (for example, non-patent document 1, 2).
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • NATIONAL UNIVERSITY CORPORATION OITA UNIVERSITY
  • 発明者(英語)
  • NAGAOKA KATSUTOSHI
  • IMAMURA KAZUYA
  • SATO KATSUTOSHI
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS KE KG KN KP KR KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG

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