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1)  non-framework alumina
非骨架氧化铝
2)  non-framework aluminum
非骨架铝
1.
The type and the chemical state of non-framework aluminum and the related influence on zeolite acidity were investigated by means of 27Al MAS NMR,N2 adsorption-desorption,XRD Rietveld refinement.
采用27Al MAS NMR、N2吸附-脱附、IR等表征技术及XRD Rietveld结构精修的方法,通过清除和交换引入非骨架铝,探讨了USY沸石中非骨架铝的形态。
2.
Being treated by water vapor at 371 ℃, the non-framework aluminum species, transformed from part of the framework aluminum, had much effects on shape-selective disproportionation of toluene.
HZSM-5分子筛经过371℃水蒸汽处理后,分子筛的部分骨架铝脱出,形成非骨架铝物种,该非骨架铝物种对甲苯择形歧化反应具有较大影响。
3)  thermal stability
非骨架铝
1.
It has been show that all ultrastable Y zeolites,especially FSEY and HSY,have betterthermal stability than NH_4Y zeolite.
XRD、FT-IR和 ̄(29)Si、 ̄(27)AlMASNMR测试结果表明,水热处理过程中产生的非骨架铝可能是造成这种热稳定性变差的原因。
2.
It has been shown that all the ultrastable Y zeolites,especially FSEY and HSY,have better thermal stability than NH_4Yzeolite, However,after steam treatment, the thermal stability ofall ultrastable Y zeolites,especially FSEY and HSY,were decreased.
本文对Y沸石及超稳Y沸石的热稳定性进行了探讨,结果表明,各种超稳Y沸石的热稳定性都比Y沸石高;水热处理前各种超稳Y沸石热稳定性彼此相差较大,但经水热处理后差距变小并且晶格破坏温度都有所降低,非骨架铝可能是造成这种热稳定性变差的原因。
4)  Nonframework four-coordinated Al
非骨架四配位铝
5)  oxide skeleton
氧化物骨架
6)  alumina supporter
氧化铝载体,氧化铝架体
补充资料:非想非非想处天
1.佛教语。即三界中无色界第四天。此天没有欲望与物质﹐仅有微妙的思想。
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