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  • 1
    Electronic Resource
    Electronic Resource
    Ga2O3/HZSM5 propane aromatization catalysts. Influence of the hydrogen pretreatment on the acid and redox functions (1993)
    Springer
    Catalysis letters 21 (1993), S. 275-281 
    Details
    ISSN: 1572-879X
    Keywords: Propane ; aromatics ; acid catalysts
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The activity and selectivity of a mechanical Ga2O3/HZSM5 mixture in four model reactions (propane aromatization at 803 K,n-heptane cracking and meta-xylene isomerization at 623 K, methylcyclohexane transformation at 773 K) were compared after pretreatment at 873 K under nitrogen and under hydrogen flow. It was thus demonstrated that the hydrogen treatment provoked a significant increase in the dehydrogenating activity of the gallium species but only a small decrease in the protonic acidity. Moreover this hydrogen treatment created a significant hydrogenolysis activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00769479
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Initial activity/selectivity of H-gallosilicate (MFI) in propane aromatization: influence of H+ exchange and thermal/hydrothermal pretreatments (1995)
    Springer
    Catalysis letters 33 (1995), S. 401-412 
    Details
    ISSN: 1572-879X
    Keywords: H-gallosilicate (MFI) zeolite ; propane aromatization ; acidity of zeolite ; H+ exchange of GaMFI ; thermal pretreatments to H-GaMFI ; hydrothermal treatments to H-GaMFI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Initial activity/selectivity of H-gallosilicate (MFI) zeolite with different degrees of H+ exchange and pretreated under different thermal and hydrothermal conditions in propane aromatization (at 500
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00814242
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Thermal decomposition of crystalline molecular sieve (C3H7)3N-AlPO4-5 (1987)
    Springer
    Journal of thermal analysis and calorimetry 32 (1987), S. 777-784 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die thermische Zersetzung von (C3H7)3N-AlPO4-5 wurde in inerter und oxydierender Gasatmosphäre mittels TG, DTG und DTA im Temperaturbereich von 303–1273 K untersucht. Der Austritt des in den Kanälen des Aluminiumphosphats okkludierten Tripropylamins erfolgt über eine Anzahl von Stufen und wird stark von der Gasatmosphäre beeinflußt.
    Abstract: Резюме Методами ТГ, ДТГ и ДТА в инертной и окислительной атмоз фере изучено термическое разложе ние (C3H7)3N-AlPO4-5 в интервале температур 303–1273 К. Выдел ение трипропиламина, оккл юдированного в канал ьных пустотах решетки фос фата алюминия, происходит в несколь ко стадий и сильной за висит от газовой атмосферы.
    Notes: Abstract The thermal decomposition of (C3H7)3N-AlPO4-5 in inert and oxidizing gas atmospheres has been studied by TG, DTG and DTA in the temperature range 303–1273 K. The removal of tripropylamine occluded in the channels of the aluminophosphate occurs in a number of steps and is strongly influenced by the gas atmosphere.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01913763
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    Paper (German National Licenses)
    Fulltext
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