Research On The Ammonium Persulfate’s Continuous Technology And Equipment

Crystallization in crystalline state refers to the solid material, steam or molten materialfrom the solution in the precipitation process. Industrial production process of ammoniumpersulfata is belonging to the crystallization process. At present, the way of productingammonium persulfate is batch crystallization in domestic. To control the temperature of thecrystal by the experience rather then by ammonium persulfate crystallization thermodynamicsand crystallization kinetics of physical parameters to design the crystallization process.Research different physical parameter with the ammonium persulfate on continuouscrystallization process has a great guiding role in ammonium sulfate production.Reserch the continuous crystallization process of ammonium persulfate. Analyze theinfluencing factors of ammonium persulfate crystallization interface stability zone width.Using the resistance method for ammonium sulfate crystallization thermodynamics experimentresearch, we can get the interface stability zone width of ammonium persulfata.The maininfluence factor is cooling rate Inflow crystallizer is obtained by the above experimentalresearch, the ammonium persulfate of mother liquor temperature for20to25℃, outflowtemperature of the mould for2-5℃;Analyzes the influencing factors of ammonium persulfatecrystallization nucleus growth rate formula.Using the resistance method for ammonium sulfatecrystallization kinetics experiment research, Respectively studied the different forms ofmixing, temperature and other factors on acrossing continuous crystallization of theammonium sulfate. The design of the diameter of the ammonium persulfate continuouscrystallizer is1.786m, height2.5m, volume of6.35m3, with the method of inside dish tubeheat exchanger; Place multiple radial flow mixers, mixing rate control in60-120r/m.According to research the process of ammonium sulfate crystallization, Got the influenceof ammonium sulfate crystallization thermodynamics and kinetics of important influencefactors of preliminary design out of the ammonium persulfate continuous crystallization oftechnology and equipment, provides reference for later study on continuous production ofammonium persulfate.