ASTM UOP905-2008 X射线衍射法测定铂晶粒结聚
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【英文标准名称】:PlatinumAgglomerationbyX-RayDiffraction
【原文标准名称】:X射线衍射法测定铂晶粒结聚
【标准号】:ASTMUOP905-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:
【标准类型】:(UOP)
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Thismethodisfordeterminingtheextentofplatinumagglomerationinreformingcatalysts,i.e.,thefractionoftheplatinuminthesamplethathasagglomeratedintocrystalliteslargerthan3.5nm,usingX-raydiffraction.Thesematerialsgenerallycontainbetween0.2to0.4mass-%platinumonpredominantlygamma-aluminasupport.Thismethodcanalsobeusedforqualitativelydeterminingthealuminatypespresentinthesample.Catalystsamplesmaybeeitherfresh,spentorregenerated,astypicallevelsofcarbon,sulfurandmoistureassociatedwiththesesamplesdonotinterfere.Reformingcatalystscontaininglessthan2%zeoliticmaterialsmayalsobeanalyzed.Sampleswheretheplatinumhasformedanalloywithothermetalssuchastin,rhodium,rheniumorironcannotbeanalyzedbythismethod.
【中国标准分类号】:
【国际标准分类号】:
【页数】:12P.;A4
【正文语种】:英语
【原文标准名称】:X射线衍射法测定铂晶粒结聚
【标准号】:ASTMUOP905-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:
【标准类型】:(UOP)
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Thismethodisfordeterminingtheextentofplatinumagglomerationinreformingcatalysts,i.e.,thefractionoftheplatinuminthesamplethathasagglomeratedintocrystalliteslargerthan3.5nm,usingX-raydiffraction.Thesematerialsgenerallycontainbetween0.2to0.4mass-%platinumonpredominantlygamma-aluminasupport.Thismethodcanalsobeusedforqualitativelydeterminingthealuminatypespresentinthesample.Catalystsamplesmaybeeitherfresh,spentorregenerated,astypicallevelsofcarbon,sulfurandmoistureassociatedwiththesesamplesdonotinterfere.Reformingcatalystscontaininglessthan2%zeoliticmaterialsmayalsobeanalyzed.Sampleswheretheplatinumhasformedanalloywithothermetalssuchastin,rhodium,rheniumorironcannotbeanalyzedbythismethod.
【中国标准分类号】:
【国际标准分类号】:
【页数】:12P.;A4
【正文语种】:英语
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