Method for pickling metallic surfaces by using alkoxylated...

Details Method for pickling metallic surfaces by using alkoxylated... Method for pickling metallic surfaces by using alkoxylated...

C - Chemistry, Metallurgy

23

G

C23G 1/06 (2006.01) C23C 22/08 (2006.01) C23G 1/08 (2006.01)

Patent

CA 2539246

Disclosed is a method for pickling metallic surfaces by treating the metallic surface with a composition comprising water, at least one acid, an alkyne alkoxylate, and other optional additives. In a preferred embodiment, the alkyne alkoxylate is used along with a complexing agent.

L'invention concerne des procédés pour décaper des surfaces métalliques, par traitement de ces surfaces métalliques au moyen d'une composition contenant de l'eau, au moins un acide, un alcynalcoxylate, et éventuellement d'autres additifs. Dans un mode de réalisation préféré de cette invention, l'alcynalcoxylate est utilisé en association avec un agent complexant.

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