PROCEDE DE DECONTAMINATION DES COMPOSANTES ET DES CIRCUIT D'ACIER CARBONE DE CENTRALES NUCLEAROELECTRIQUES

The process comprises dissolving of the magnetite film from the internal surface of the circuit, by means of a reagent, and complexing of the dissolved cations. The reagent is regenerated in columns packed with cationic ion exchange resins trapping the active and inactive cations. The complexing age...

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Bibliographische Detailangaben
Hauptverfasser:	BEREVOIANU FLORINA,RO, TOADER MARIN,RO, ACHIM NICOLAE,RO
Format:	Patent
Sprache:	fre ; rum
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DECONTAMINATION ARRANGEMENTS THEREFOR DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY NUCLEAR ENGINEERING NUCLEAR PHYSICS PHYSICS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT TREATING RADIOACTIVELY CONTAMINATED MATERIAL
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Beschreibung
Zusammenfassung:	The process comprises dissolving of the magnetite film from the internal surface of the circuit, by means of a reagent, and complexing of the dissolved cations. The reagent is regenerated in columns packed with cationic ion exchange resins trapping the active and inactive cations. The complexing agent reacts with the other cations, and the reagent contains ascorbic acid, oxalic acid, EDTA and corrosion inhibitor. The proportions of substances exclude ferrous oxalate formation, and the substances are chemical pure.