METHOD OF DETERMINING STABILITY OF EXTRACT-NITRIC ACID SYSTEM

摘要

FIELD: extraction processing of materials. SUBSTANCE: interaction degree of initial components in a system is determined from loss of nitric acid, and its stability is determined from diagrams with coordinates: percentage of reacted nitric acid vs. equilibrium concentration of nitric acid in aqueous phase, and equilibrium concentration of nitric acid in aqueous phase corresponding to the beginning of interaction vs. temperature. Method allows selecting conditions for conducting a process which exclude interaction of initial substances in system. EFFECT: facilitated extraction processing of materials. 2 dwg