The operation was carried out at a maximum stirring speed of 1100 rpm in the first stage of reaction (10 min), and a lower stirring speed of 600 rpm in the subsequent stage (5 min).
The operation was carriedout at a maximum stirring speed of 1100 rpm in the first stage ofreaction (10 min), and a lower stirring speed of 600 rpm in thesubsequent stage (5 min).