《Table 4 Variations in L and E with agitation speed for the three regimes》

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《Regime Map of Dry Neutralization Agglomeration Process Containing Non-Reactive Ingredient on a Laboratory Scale》

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In the transitional regime，there was fi rst a decrease in MPS and then a slight increase with an increase in the agitation speed.This implies that the destructive force of impellers became dominant at a low agitation speed，whilethe consolidation and coalescence outweighed breakage at a high agitation speed.In this regime，the major dry powder was Na 2 CO 3 and Na 2 SO 4.HLAS was almost completely neutralized.As a result，agglomeration entered a steady growth phase and the end point product was sticky.According to force analysis，agitation has dual eff ects on powder growth.Energy input is low at a low agitation speed；therefore，the compaction force is lower than the destructive force.However，at a high agitation speed，the increased amount of energy input indicates that the destructive force is lower than the consolidation and coalescence forces.The above analysis is supported by results of the color test，as shown in Table 4.