METHOD FOR CONTROLLING THE PROCESS OF SATURATION OF EXTRACTANT IN EXTRACTION PULSATION COLUMN OF NUCLEAR-SAFE DESIGN

摘要

FIELD: nuclear industry.;SUBSTANCE: invention relates to a method for automatic control and regulation of processes in extraction nuclear-safe pulsation columns and can be used in the refining extraction processing of spent mixed nitride uranium-plutonium nuclear fuel. The method includes regulating the flow rate of the initial aqueous solution, the extractant and stabilizing the position of the maximum gradient of the concentration of metals in the extractant in the middle of the reaction zone of the column by adjusting the flow rate of the initial aqueous solution according to the average value of the air pressure in the pulsation chamber while automatically maintaining the level of the extractant in the pulsation chamber by means the flow rate of compressed air supplied to it.;EFFECT: invention increases the column productivity with a high specified quality of purification and separation of components of spent mixed nitride uranium-plutonium nuclear fuel, as well as increases reliability of the automatic process control system.;1 cl, 1 dwg