Cleaner composition and method of use thereof

Details Cleaner composition and method of use thereof Cleaner composition and method of use thereof

C - Chemistry, Metallurgy

23

G

C23G 1/24 (2006.01) C23G 1/19 (2006.01) G21F 9/00 (2006.01)

Patent

CA 2361606

Methods and compositions for removing iron oxide scale from metal surfaces. A combination of ethoxylated mercaptan and/or oxidized ethoxylated mercaptan and 1-hydroxyethylidene-1,1-diphosphonic acid is added to an aqueous system, such as a steam generating system, to remove scale from the metal surfaces.

L'invention se rapporte à des procédés et à des compositions permettant de retirer une couche d'oxyde de fer de surfaces métalliques. On ajoute une combinaison de mercaptan éthoxylé et/ou de mercaptan éthoxylé oxydé et d'acide 1-hydroxyéthylidène-1,1-diphosphonique à un système aqueux, tel qu'un système générateur de vapeur, de manière à retirer la couche d'oxyde des surfaces métalliques.

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