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  • 11
    Electronic Resource
    Electronic Resource
    Kinetics of the oxidation of isobutane in the presence of hydrogen bromide (1959)
    Springer
    Russian chemical bulletin 8 (1959), S. 1331-1338 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. We have investigated the kinetics of isobutane oxidation, In the presence of HBr in terms of the consumption of i-C4H1, O1, and HBr and the formations of ten-butyl hydroperoxide, tert-butyl alcohol, acetone, CO,and CO1. 2. We have clearly demonstrated that the process occurs in stages, i.e., macroscopic stages separate in time. The first stage consists in the oxidation of isobutane, mainly to tert-butyl hydroperoxide. Oxygen is no longer consumed in the second stage, and isobutane is oxidized by tert-butyl hydroperoxide to tert-butyl alcohol, the hydroperoxide being converted to acetone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00918570
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  • 12
    Electronic Resource
    Electronic Resource
    Role of the surface in the macroscopic stages of isobutane oxidation in the presence of HBr (1960)
    Springer
    Russian chemical bulletin 9 (1960), S. 912-916 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. By separative calorimetry we confirmed that isobutane oxidation in the presence of HBr has two macroscopic stages that are separate in time. 2. It was established that the first stage, which is the formation of tert-butyl hydroperoxide, is homogeneous, while the second stage, which is decomposition of tert-butyl hydroperoxide and its reaction with isobutane, is heterogeneous.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00903961
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  • 13
    Electronic Resource
    Electronic Resource
    Macroscopic stages in the oxidation of propane in the presence of chlorine (1960)
    Springer
    Russian chemical bulletin 9 (1960), S. 1249-1254 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. The oxidation of propane by oxygen in the presence of chlorine at various temperatures (327, 340, 358, and 372°) was studied by measuring the heating of the mixture during the reaction. 2. When chlorine was introduced into the system C3H3+ O2, two heat-evolution maxima were clearly observed and these indicated that there are two macroscopic stages, separate in time, in the reaction mechanism. 3. By calculation, it was shown that two heat-evolution maxima may be obtained when there occur two degenerate branched stages in which a product of the first stage produces degenerate branching of the chain in the second stage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00907651
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  • 14
    Electronic Resource
    Electronic Resource
    Kinetic characteristics of the oxidation of propane with oxygen mixed with chlorine in quartz vessels (1957)
    Springer
    Russian chemical bulletin 6 (1957), S. 17-27 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. A study was made of the oxidation of propane with oxygen mixed with chlorine under flow conditions in a quartz vessel without filling attemperatures:of 250°, 310°, and 355°. 2. It was shown that small additions of chlorine accelerate the oxidation of propane and increase the yield of oxygen-containing products. It was found that large additions of chlorine are undesirable, for the yields of valuable oxygen-containing products are not increased and far-reaching oxidation (combustion) processes are stimulated. 3. It was found that one of the molecular intermediate products was an organic peroxide (isopropyl hydroperoxide), which was formed in considerable amount. 4. Schemes proposed in the literature for the oxidation of hydrocarbons were examined in their application to the oxidation of propane, and it was shown that the effect of additions of chlorine is to be attributed mainly to increase in the rate of formation of initiating centers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01168841
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  • 15
    Electronic Resource
    Electronic Resource
    New problems in the field of chain reactions (1957)
    Springer
    Russian chemical bulletin 6 (1957), S. 1322-1333 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01171889
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  • 16
    Electronic Resource
    Electronic Resource
    Kinetics of the oxidation of ethane in presence of hydrogen bromide (1956)
    Springer
    Russian chemical bulletin 5 (1956), S. 669-677 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. A study was made of the kinetic laws of the oxidation of ethane to acetic acid in presence of hydrogen bromide. It was shown that the process of acetic acid formation comes to an end long before the reactants are used up. Such “limit phenomena” are explained on the basis of the existence of an initiating reaction that results in the formation of an intermediate product, the amount of which determines the yield of acetic acid. 2. It was established that, whatever method is adopted for initiating the oxidation process by additions of catalyst (hydrogen bromide), the yield of. acetic acid cannot be raised above 40% on the amount of ethane taken. The generality of the phenomenon was pointed out: it is found in other slow-oxidation reactions. 3. With the aid of a method based on the study of the evolution of heat in the reaction mixture during the reaction it was shown that the mechanism of the reaction includes a sequence of two macroscopic stages displaced from one another in time. The first stage — the initiating reaction — is a homogeneous-heterogeneous process. The second stage — the formation of acetic acid initiated by the decomposition of the intermediate product obtained in the first stage — is a homogeneons process. These results confirm the prevalence of the phenomenon of successive macroscopic stages in oxidation processes initiated by additions of homogeneous catalysts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01178926
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  • 17
    Electronic Resource
    Electronic Resource
    Gaseous initiation with ozone in the oxidation of paraffin (1959)
    Springer
    Russian chemical bulletin 8 (1959), S. 22-26 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. A short activation by small quantities of ozone mixed with air further activated the chain propagation in the oxidation of paraffin by molecular oxygen. 2. An uninterrupted oxidation of paraffin by ozonized air ensures a fast rate of oxidation and a high yield of fatty acids, which are, it seems, produced through oxidation by the active oxygen in ozone, with only insignificant amounts of molecular oxygen contributing to the reaction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00914209
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  • 18
    Electronic Resource
    Electronic Resource
    Activation of the surface of a vessel by a reacting mixture of C3H8+ O2 in the presence of chlorine (1959)
    Springer
    Russian chemical bulletin 8 (1959), S. 1169-1173 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. It was established that the phenomenon of sensitization by chlorine exists when propane is oxidized in vessels containing a packing. This effect is due to activation of the vessel surface and of the packing during the progress of catalyzed oxidation. The activation of the surface is retained for a long time and secures the catalyzed oxidation of propane in the absence of chlorine. 2. Data were obtained on the yields of aldehydes obtained when propane is oxidized in vessels, containing a packing, at different temperatures and with different amounts of added chlorine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00920398
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  • 19
    Electronic Resource
    Electronic Resource
    The composition of the acids formed by the oxidation of n-decane in the liquid phase (1960)
    Springer
    Russian chemical bulletin 9 (1960), S. 1437-1442 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Conclusions 1. The composition of the mixture of acids, and the kinetics of the behavior of the individual acids, have been studied for the oxidation of n-decane in the liquid phase. 2. It has been shown that oxidative combustion of the higher acids during the oxidation process does not occur. 3. The distribution of the acids obtained cannot be explained on the basis of the suppositions accepted at the present time, and needs a more thorough investigation of the mechanism of the separate stages taking place during the complex oxidation process leading to the development of the acids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00909804
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  • 20
    Electronic Resource
    Electronic Resource
    Chain transfer by the initiator radical in the oxidation of β-carotene with additions of N-phenyl-β-naphthylamine (1975)
    Springer
    Russian chemical bulletin 24 (1975), S. 2314-2318 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Conclusions 1. The influence of reactions of chain transfer by the inhibitor radical on the structure of the stoichiometric coefficient and the effective inhibition constant (k7,eff) was considered. 2. The relative inhibition constant (k7/k2) was determined for neozone-D, in β-carotene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00921639
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