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Publication of PE7197A1publicationCriticalpatent/PE7197A1/en
SE REFIERE A UN PROCEDIMIENTO PARA REDUCIR EL CONTENIDO DE GASES NITROSOS EN ACIDO SULFURICO, CARACTERIZADO PORQUE LOS GASES NITROSOS SON REDUCIDOS A N2 CON DIOXIDO DE AZUFRE (SO2) EN EXCESO, APROXIMADAMENTE =2% EN PESO SOBRE EL ESTEQUIOMETRICO, REFERIDO AL CONTENIDO DE GASES NITROSOS EN EL ACIDO SULFURICO, Y DONDE EL ACIDO SULFURICO ALCANZA UNA CONCENTRACION DE 5% AL 60% EN PESO DESPUES DE LA ADICION DE SO2IT REFERS TO A PROCEDURE TO REDUCE THE CONTENT OF NITROUS GASES IN SULFURIC ACID, CHARACTERIZED BECAUSE THE NITROUS GASES ARE REDUCED TO N2 WITH SULFUR DIOXIDE (SO2), APPROXIMATELY WEIGHT OVER THE ESTIMATE OF THE WEIGHT NITROUS IN SULFURIC ACID, AND WHERE SULFURIC ACID REACHES A CONCENTRATION OF 5% TO 60% BY WEIGHT AFTER SO2 ADDITION
PE00029596A1995-05-041996-04-30
PROCEDURE FOR THE DECREASE OF NOx CONTENT IN SULFURIC ACID
PE7197A1
(en)
Polarization cell for a noble gas hyperpolarization, apparatus for a hyperpolarization of a noble gas, a method for manufacturing a polarization cell and a hyperpolarization method for a noble gas.
Process for producing aryldiazonium salts from nitrogenous gases rich in nitrogen oxide, aqueous solutions of these salts and their use for the preparation of aminoazoaromatic compounds.