Ensure Liquid
3.Appending soluble aluminum salt into aluminum fluoride origin liquid can effectively forestall formation of cryolite solid matter among sodium, fluorine and aluminum,thus avoid loss of aluminum and fluorine in technics of desilicate from aluminum fluoride,ensure quality of flusilicate natrum products and economy benefit of utilization of origin liquid.
7.Based on the Edwards model, a vapor-liquid equilibrium model of NH3-CO2-H20 system is proposed. We focused on the program to resolve this mathematics model and developed a robust algorithm that combined the equation-based approach and the iterative approach considering the real reaction process to ensure the program to be convergent steadily.

