2005 Volume 59 Issue 4 Pages 282-291
The simulations of several evaporating salt manufacturing processes (multi-effect process, vapor-compression process and, multi-effect and vapor-compression composite process) that can be realized with present technology were performed.The feasibility of reducing production costs was studied by comparing these processes and an ion-exchange membrane process.As a result, the production costs of the multi-effect process, the vapor-compression process, and the multi-effect and vapor-compression composite process were 1.63, 2.62 and 1.60 times as expensive as the ion-exchange membrane process, respectively. It is confirmed that in order to reduce the production cost using only the evaporating process is difficult.Therefore, reducing the production cost by improving the ion-exchange membrane process is found to be important.
