METHOD FOR OBTAINING INCRUSTATIONS INHIBITOR POLYMER AND ITS USE IN AQUEOUS SYSTEMS

• Main Authors: JANETT ANAID VALDEZ GARZA, CARLOS ALBERTO AVILA ORTA, JOSE MANUEL MATA PADILLA, JUAN GUILLERMO MARTÍNEZ COLUNGA, GREGORIO CADENAS PLIEGO, VÍCTOR JAVIER CRUZ DELGADO, VICTOR EDUARDO COMPARAN PADILLA, MYRIAM LOZANO ESTRADA, ODILIA PEREZ CAMACHO
• Format: Patent
• Language: English; Spanish
• Published: 27.09.2018
• 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; COMPOSITIONS BASED THEREON; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; 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; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention relates to the modification of a polymer of the type poly (styrene-co-allyl alcohol) with groups, sulfonic and its application as an inhibitor of incrustations in aqueous systems, thereby causing corrosion and blocking the ducts thereof. The chemical substances used as inlays inhibitors commonly are molecules or water-soluble polymers containing various functional groups like the phosphonates, carboxylates, and sulfonates. In addition, polymers are stable at high temperatures and effective inhibitors of fouling in a water cooling system. The polymer modified with groups sulfonic of the present invention is a biodegradable material, unlike the phosphonates polymer, commonly used as inhibitors. Further, it is useful in industrial processes with heat transfer on a surface, primarily in boilers, cooling systems, and heat exchangers, thus avoiding decreasing the heat transfer. La presente invención se refiere a la modificación de un polímero del tipo poli(estireno-co-alil alcohol) con grupos sulfónicos y su aplicación cómo inhibidor de incrustaciones en sistemas acuosos. Dichas incrustaciones pueden provocar corrosión y bloquear los conductos del sistema. Existen diversas sustancias químicas utilizadas como inhibidores de incrustaciones, las cuales son moléculas o polímeros solubles en agua que contienen diversos grupos funcionales, los grupos más comunes son los fosfonatos, carboxilatos y sulfonatos. Los polímeros han mostrado efectividad como inhibidores de incrustaciones en sistemas de refrigeración de agua, además de ser estables a altas temperaturas. El poli(estireno-co-alil alcohol) modificado con grupos sulfónicos, es un material biodegradable, a diferencia de los fosfonatos poliméricos, comúnmente utilizados como inhibidores. Los polímeros inhibidores de incrustaciones son útiles particularmente en procesos industriales en donde ocurre transferencia de calor sobre una superficie, principalmente en calderas, sistemas de refrigeración e intercambiadores de calor, evitando la disminución de la transferencia de calor.