NOBLE METAL-SUPPORTED MATERIAL AND USE THEREOF
PROBLEM TO BE SOLVED: To provide a new catalyst or the like by which a high generation amount of olefin oxide can be provided by using together with a titanosilicate-containing catalyst in the reaction for producing propylene oxide form oxygen, hydrogen and propylene.SOLUTION: There is provided a no...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a new catalyst or the like by which a high generation amount of olefin oxide can be provided by using together with a titanosilicate-containing catalyst in the reaction for producing propylene oxide form oxygen, hydrogen and propylene.SOLUTION: There is provided a noble metal-supported material which contains noble metals and a carrier as the constituents and is characterized in that the ratio of desorbed hydrogen amount (MH2) to adsorbed carbon monoxide amount (MCO) is in a range of 0.01 to 0.40. Here, "the desorbed hydrogen amount" means a value calculated from the sum of peak area of the desorption component having a maximal value within a range of 50 to 350°C observed according to a temperature-programmed desorption method of a temperature-elevation rate of 10°C/min regarding a sample after pretreatment. Besides, "the adsorbed carbon monoxide amount" means a value measured by a metal surface area-measuring method based on a carbon monoxide-pulsing method regarding the sample after pretreatment. |
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