A non-corrosive treatment to enhance pressurized and...

C - Chemistry – Metallurgy – 23 – F

Patent

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C23F 11/02 (2006.01) C10L 9/10 (2006.01) C21B 5/00 (2006.01)

Patent

CA 2516491

Methods and compositions for inhibiting corrosion of metal surfaces in a furnace system are disclosed. In one aspect of the invention, pulverized coal is burned as fuel in the presence of a copper ion catalyst/combustion aid. Corrosion is inhibited in these systems by the use of a blend of primary aminoalcohol such as 2-aminoethanol, tertiary aminoalcohol such as triethanol amine, and boric acid or water soluble salt form of the acid.

L'invention concerne des procédés et des compositions destinés à inhiber la corrosion de surfaces métalliques dans un système de four. Dans aspect de l'invention, du charbon pulvérisé est brûlé comme combustible en présence d'un catalyseur ionique de cuivre/adjuvant de combustion. La corrosion est inhibée dans ces systèmes au moyen d'un mélange d'un aminoalcool primaire tel que le 2-aminoéthanol, d'un aminoalcool tertiaire tel que la triéthanolamine, et d'un acide borique ou d'une forme saline hydrosoluble de cet acide.

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