Crystallization sequence of brines-geometrical principles for a computer assisted calculation

A computer assisted calculation of the crystallization sequence of a brine is performed on the basis of the respective phase diagrams at 25 degrees C. The nature of the solids and the mass balance are determined. The calculat ion gives immediate quantitative information of the brine behavior during e vaporation. The calculation is performed assuming that i) the solids are al ways in equilibrium with the liquid, i.e. that some solid phases can be par tially or completely redissolved during evaporation, or ii) the solids are separated from liquid by sedimentation and no redissolution is possible. Th e seasonal or day-night fluctuations of temperature and metastable equilibr ia have not been taken into account.