An Attempt at Measuring the NaCl Nucleation Rate in a Crystallizer by Using a Light Sensor

Abstract

In the salt industry, the control method for production rate is not yet established because the crystal number substantially depends on the secondary nucleation, agglomeration and breakage under various crystallization conditions. In this work, the in situ measurement method of turbidity of suspended crystals in a crystallizer was proposed by using a light sensor. In NaCl evaporation crystallization, the relationship between the nucleation rate and the evaporation rate was obtained. This system may be useful for controlling the production rate and the design of the crystallizer.