The general dynamic features of the batch oxidation of Sulfur(-Ⅱ) compounds (S2-,thiosuifae, thiocynate and thiourea et al. ) were discussed. The changes of pH with reaction time consist of a rise and two separate dr...The general dynamic features of the batch oxidation of Sulfur(-Ⅱ) compounds (S2-,thiosuifae, thiocynate and thiourea et al. ) were discussed. The changes of pH with reaction time consist of a rise and two separate drops. Dynamic model was proposed, further experimental studies on the batch oxidation of thiourea and thiocyanate by ClO2- were also canied out. Simulation curve was well consistent with experiment in a batch reactor.Non-catalytic oscillation of peroxide (hydrogen peroxide, persulfate et al. ) - S(-Ⅱ)-compound system resulted from the nonlinear dynamic of sulfur oxidation. In the oxidation of S(-Ⅱ)-compounds by oxyhalogen compounds(ClO2 - et al. ), nonlinear dynamics of both oxyhalogen compound and suifur compound should be considered simultaneously. So complex phenomena such as birhythmicity and chaos may be discovered.展开更多
文摘The general dynamic features of the batch oxidation of Sulfur(-Ⅱ) compounds (S2-,thiosuifae, thiocynate and thiourea et al. ) were discussed. The changes of pH with reaction time consist of a rise and two separate drops. Dynamic model was proposed, further experimental studies on the batch oxidation of thiourea and thiocyanate by ClO2- were also canied out. Simulation curve was well consistent with experiment in a batch reactor.Non-catalytic oscillation of peroxide (hydrogen peroxide, persulfate et al. ) - S(-Ⅱ)-compound system resulted from the nonlinear dynamic of sulfur oxidation. In the oxidation of S(-Ⅱ)-compounds by oxyhalogen compounds(ClO2 - et al. ), nonlinear dynamics of both oxyhalogen compound and suifur compound should be considered simultaneously. So complex phenomena such as birhythmicity and chaos may be discovered.
