PROCEDE POUR AMELIORER L'ACTIVITE INITIALE DE L'HYDRAZINE ACTIVEE

A.PROCEDE POUR AMELIORER L'ACTIVITE INITIALE DE L'HYDRAZINE ACTIVEE.B.IL CONSISTE A UTILISER EN PLUS DES ACTIVATEURS A BASE DE COMPLEXES DU COBALT TRIVALENT, COMME CO-ACTIVATEURS, LE 2-AMINO-4NITROPHENOL, OU LE 2-ACETAMINO-4-NITROPHENOL OU DES MELANGES DE CES DEUX PRODUITS.C.CE PROCEDE PER...

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1. Verfasser:	WILFRIED FUCHS, HORST RICHTER, ROLAND KOBER, VENDELIN KAUFMANN ET CHRISTINA MULLER
Format:	Patent
Sprache:	fre
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Zusammenfassung:	A.PROCEDE POUR AMELIORER L'ACTIVITE INITIALE DE L'HYDRAZINE ACTIVEE.B.IL CONSISTE A UTILISER EN PLUS DES ACTIVATEURS A BASE DE COMPLEXES DU COBALT TRIVALENT, COMME CO-ACTIVATEURS, LE 2-AMINO-4NITROPHENOL, OU LE 2-ACETAMINO-4-NITROPHENOL OU DES MELANGES DE CES DEUX PRODUITS.C.CE PROCEDE PERMET EN PLUS DE L'ACTIVATION INITIALE OBTENUE, DE DIMINUER LA CONCENTRATION EN ACTIVATEUR. The method for improving the initial activity of activated hydrazine, is used as corrosion protection for reservoir drinking water and for the wet preservation of installation parts, which are no longer being used. It is the goal of the invention to improve the initial activity of hydrazine solutions, which are activated with complexes of trivalent cobalt, with respect to oxygen dissolved in water, and to lower the activator concentration; the object of the invention being to use a suitable coactivator. The object is accomplished in that the activator-rich hydrazine solution additionally contains 2-amino-4-nitrophenol or 2-acetamino-4-nitrophenol or mixtures thereof as coactivator.