PROCEDURE AND DEVICE FOR THE INTRODUCTION OF ZIRCONIUM TETRACHLORIDE, HAFNIUM TETRACHLORIDE AND ITS MIXTURES IN A CONTINUOUS EXTRACTOR DISTILLATION COLUMN AND UNDER PRESSURE OF SUCH CHLORIDES.

摘要

THE PROCEDURE AND DEVICE OF THE INVENTION REFER TO INTRODUCTION WITH A STABLE AND KNOWN FLOW OF SUBLIMABLE TETRACHLORIDE IN A COLUMN (7) OF CONTINUOUS EXTRACTIVE DISTILLATION AND UNDER PRESSURE OF SUCH CHLORIDES. SUBLIMABLE TETRACHLORIDE IS DISSOLVED IN A HEAT SOLVENT (I) IN A LIQUID SOLVENT LIKE KAICI4, THEN PUSHED BY A PUMP (5) WITH A STABLE FLOW AND KNOWN IN AN EVAPORATOR (6) ATTACHED TO THE COLUMN (7). THE SOLUTION IS THEN REHEATED IN THE EVAPORATOR (6) SO THAT THE ESSENTIAL OF THE PRODUCT THEY CONTAIN IS SUBLIMATED, THE SUBLIMATED VAPORS PASSING THEN WITH A STABLE AND KNOWN FLOW IN THE COLUMN (7). THE PROCEDURE OF THE INVENTION APPLIES IN PARTICULAR IN THE MANUFACTURING UNITS OF NUCLEAR PURITY ZRCL4 AND HFCL4.