Ein solches Zweiparameter-Model1 lPRt sich rnit der systeminternen Stabilitit der Biosphare (6) und ihrer Abhangigkeit von den externen Parametern, hier dem atmospharischen C0,-Gehalt (Michaelis-Menten-Term), beschreiben 0.16) in kJ/mol. With an excess of 0 atoms mainly SO2, CO,, HCHO, and H2S were found; for mercaptan-rich mixtures sulphides and disulphides were formed in addition, indicating the occurrence of thiyl radicals as intermediates. OH and CHI radicals were also analysed. -As O2 is present in the atmosphere, in part I1 its influence on the reaction system is discussed, especially its reactions with thiyl radicals. In a CSTR, oxygen-nitrogen mixtures, containing small amounts of mercaptan (0.5 - 0.16). (2.73

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Aerated emulsions are gaining significance in fermentation as well as in inorganic and organic chemistry. In these processes, liquid-liquid mass transfer can be the limiting step. Therefore, the effect of gassing rate on droplet size was investigated as a function of dispersed liquid phase concentration and power input in different vessels. At high power inputs, the droplet size decreased. With increasing dispersed phase concentration and gassing rate, the droplet size increased and its dependence on power input subsided.

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