[exicial87]

Hi everyone, here's a question about batch distillation:
 
There is a binary system with A (heavy component) and B (light component). The A component concentration is smaller than B. The objetive is retire all A, and for this we measure the initial volume, charge a fixed amount X of component B and distillate until a fixed volume (remember this is batch distillation). We repeat this many times until there is not A component in the mixture.
 
The question is:
 
One distillation charging X amount of B is equivalent to N distillations charging X/N amount of B?
 
Are one more efficient than the other?
 
Regards