简介:<正>1IntroductionThereexistcalciumandsulfateionsoutsidesodiumchlorideinsolutionminingforcalciumsulfatebrine.Thecalciumandsulfateionsnotonlyaffectthepurityofthevacuumsaltproducts,butalsoincreasethescalingofvacuumevaporationtanksandbrinereusingpipes.Additiveshavecertainimpactsonthecrystallizationdynamics(Randolphetal.,1971).Thecrystallization