CORROSION INHIBITOR

• Main Authors: SANDERSEN GRETLAND, KRISTIN, MYRVOLD, BERNT O, BUVARP, RUNE, STYLO, TOM, SELJEBAKKEN KLAUSEN, BENTE, FREDHEIM, GURO ELISE
• Format: Patent
• Language: English; French
• Published: 19.03.2009
• 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

It has surprisingly been discovered that simple diols and triols work as corrosion inhibitors in concentrated organic and inorganic acids, e.g. used as additives in metallic equipment in factories and plants. These corrosion inhibitors are cheap and readily available in large quantities. The diol and triol also reduces evaporation of the acid, and thus improves the working environment. L'invention concerne des diols et triols simples agissant en tant qu'inhibiteurs de corrosion dans des acides organiques et inorganiques concentrés, par exemple utilisés en tant qu'additifs dans du matériel métallique dans des usines et installations industrielles. Ces inhibiteurs de corrosion sont bon marché et aisément disponibles en grandes quantités. Les diols et triols réduisent également l'évaporation de l'acide et améliorent ainsi l'environnement de travail.