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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
  • 特願2015-032192 (2015.2.20) 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.
特許請求の範囲(英語) [claim1]
1. Ruthenium it features that it supports stratified in the oxidation praseodymium carrier, the ammonia synthetic catalyst.
[claim2]
2. The support quantity of Ru Ru features that it is 1-10wt% of total weight of the catalyst which supports, in claim 1 the ammonia synthetic catalyst of statement.
[claim3]
3. It features that thickness of Ru layer on the carrier is above 0.1nm, in claim 1 or 2 the ammonia synthetic catalyst of statement.
[claim4]
4. Calcining the oxidation praseodymium precusor, in low temperature, intermediate temperature and hot order it makes oxidation praseodymium, it features that it makes ruthenium stratified support in the oxidation praseodymium carrier this with ruthenium resource after the agitating, by solvent removing and calcines and in the solvent, production method of the ammonia synthetic catalyst.
[claim5]
5. Calcination of the oxidation praseodymium precusor, with the 200-400.deg.C 1-10 time, next it features that 1-10 time it does next with the 600-900.deg.C 1-10 time, and with the 400-600.deg.C, in claim 4 production method of the ammonia synthetic catalyst of statement.
[claim6]
6. It features that the organometal compound is used as a ruthenium resource, in claim 4 or 5 production method of the ammonia synthetic catalyst of statement.
[claim7]
7. It features that the organic solvent is used as a solvent, in claim 6 production method of the ammonia synthetic catalyst of statement.
[claim8]
8. As ruthenium resource it features that tetrahydrofuran is used making use of [toriruteniumudodekakaruboniru], as a solvent, in claim 4 or 5 production method of the ammonia synthetic catalyst of statement.
  • 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 (WO2016133213)
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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