Thermal requirements to obtain calcined and frits of ulexite

摘要: Abstract Ulexite has a substantial amount of hydration water, which allows using calcination methods to increase the B2O3 content from 42.97 66.69%, due loss 35.54% its weight, corresponding water. In this study, determinations changes in heat at each temperature were made an isoperibol calorimeter. The mean specific was calculated these values. reaction enthalpy also determined by DTA methods. sample used experiments contains 39.04% B2O3. between 80 and 1000 °C. Curves weight are presented analysed. results have industrial application order determine thermal requirements for calcining ulexite different temperatures, as well complete dehydration.