PROCESS FOR PREVENTING CORROSION AND HYDROGEN FRAGILIZATION OF TANTALUM EQUIPMENT PROVIDING INTERNAL HANDLING OF HOT CONCENTRATED SULFURIC ACID

摘要

The object of the invention is to provide a method for preventing corrosion and hydrostation of the equipment manufactured by TANTALUM for the internal handling of the concentrated sulfuric acid at a temperature of 200 ° C. or higher. P ON INCLUDES INTO HOT CONCENTRATED SULFURIC ACID AT LEAST ONE OXIDATION AGENT SELECTED FROM NITRIC ACID, VAPORIZED NITRIC ACID AND FERRIQUE, COPPER, PLOMBIC AND STANNINIC IONS. / P P DECOMPOSITION OF RADIOACTIVE SLUDGE BY HOT SULFURIC ACID. / P