VERFAHREN ZUR KORROSIONSSCHUTZBEHANDLUNG WASSERFUEHRENDER SYSTEME

• Main Authors: WONS,WERNER, WEHLE,VOLKER,DR
• Format: Patent
• Language: German
• Published: 08.03.1984
• Subjects: 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; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

1. A process for the corrosion-inhibiting treatment of water-carrying systems for soft, weakly buffered water by additions of phosphates and/or silicates, characterized in that sodium or potassium carbonates or hydrogen carbonates are added to the water in combination with phosphates and/or silicates in respective quantities of from 2 to 20 g/m**3 expressed as CO3**--, 0.5 to 5 g/m**3 expressed as P2 O5 and 1 to 20 g/m**3 expressed as SiO2 .