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  • 1
    Digitale Medien
    Digitale Medien
    Kinetics of Ethylene Oxidation on a Supported Silver Catalyst (1979)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 62 (1979), S. 1689-1700 
    Details
    ISSN: 0018-019X
    Schlagwort(e): Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: The kinetics of ethylene oxidation by air over a supported silver catalyst were investigated in the temperature range 490-620 K. The reaction network was found to be triangular. Under virtually constant oxygen partial pressure (0.2 bar), the following rate relationships, (in mol g-1s-1) were found: (formulae in curved brackets denote partial pressures) where R is expressed in J · mol-1 · K-1.The given rate expressions are discussed in the framework of earlier kinetic investigations.
    Zusätzliches Material: 9 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/hlca.19790620602
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  • 2
    Digitale Medien
    Digitale Medien
    Activity, Selectivity, Decay and Long-Term Behaviour of Amination Catalysts (1978)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 61 (1978), S. 1169-1174 
    Details
    ISSN: 0018-019X
    Schlagwort(e): Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: A survey of the activity and selectivity of several catalysts for the amination of long-chain aliphatic alcohols with dimethylamine is given. The best results were obtained with Cu-catalysts whose long-term behaviour was investigated. The main reasons for catalyst decay are the irreversible adsorption of dimerization products and the thermal diffusive fusion of Cu-crystallites.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/hlca.19780610332
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  • 3
    Digitale Medien
    Digitale Medien
    Untersuchung des Flüssigkeits-Holdcup in Rieselbettreaktoren (1984)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 56 (1984), S. 784-785 
    Details
    ISSN: 0009-286X
    Schlagwort(e): Dynamischer Holdup ; interner Holdup ; statischer Holdup ; Porennutzungsgrad ; Rieselbett ; Verweilzeit ; Modellbildung ; Tracer-Methode ; Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Zusätzliches Material: 2 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/cite.330561011
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  • 4
    Digitale Medien
    Digitale Medien
    Catalytic C(1), C(2)-Bond Cleavage of Long-Chain Aliphatic Alcohols and ω-Phenylalkyl Alcohols (1977)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 60 (1977), S. 2958-2963 
    Details
    ISSN: 0018-019X
    Schlagwort(e): Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: A catalytic one step procedure for the C(1), C(2)-bond cleavage of long-chain aliphatic alcohols and ω-phenyl alcohols has been investigated, using as examples decanol, dodecanol, hexadecanol, benzyl alcohol, 2-phenylethanol and 3-phenyl-propanol. The reactions, which were carried out in a continuous flow tubular reactor using a Ni/Cu catalyst, showed good activity and selectivity with respect to the cleavage products. On the basis of the experimental studies a reaction scheme for the heterogeneous catalytic C(1), C(2)-bond cleavage of the alcohols is suggested.
    Zusätzliches Material: 2 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/hlca.19770600848
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  • 5
    Digitale Medien
    Digitale Medien
    Thermogravimetrische Untersuchung der reduzierenden Chlorierung von Tonerde (1979)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 62 (1979), S. 76-85 
    Details
    ISSN: 0018-019X
    Schlagwort(e): Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Thermogravimetric analysis of the reducing chlorination of aluminaThe kinetics of the chlorination of dehydrated alumina with (CO/Cl2) mixtures were studied in the temperature range of 400-900°. The temperature of dehydration of the alumina was shown to be critical for the reaction rates of the subsequent chlorination. Optimal reaction rates could be observed with equimolar (CO/Cl2) mixtures in the range of 600-700°. At higher temperatures, only a very small increase in reaction rates with increasing temperature could be observed which is thought to be due to the influence of gaseous diffusion gradients in the porous alumina and a progressive decrease in surface area. Granulometric as well as scanning electron microscope studies have shown that with progressing reaction the alumina particles become hollow while retaining their outer shape and size up to a high degree of conversion.
    Zusätzliches Material: 9 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/hlca.19790620112
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