乳酸锌冷却结晶中溶液浓度的在线测量

method concerning on-line monitoring of solution concentration during cooling crystallization process by using conductivity meter was proposed in this paper. That is, solute concentration in slurry under different temperature can be estimated by investigating the effect of temperature on conductivity of homogeneous solution and the contribution of solid concentration to slurry conductivity, respectively. Furthermore, four cooling crystallization processes of zinc lactate were performed, and the variations of concentration were measured on-line based on this method. And the accuracy was verified by comparing with the experimental results measured off-line by HPLC.