Composition and process for cleaning and deoxidizing aluminum

C - Chemistry – Metallurgy – 11 – D

Patent

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C11D 1/70 (2006.01) B08B 3/04 (2006.01) C11D 1/83 (2006.01) C11D 1/94 (2006.01) C11D 3/02 (2006.01) C11D 3/06 (2006.01) C11D 3/08 (2006.01) C11D 3/10 (2006.01) C11D 3/20 (2006.01) C11D 3/43 (2006.01) C11D 11/00 (2006.01) C23G 1/22 (2006.01) C11D 1/10 (2006.01) C11D 1/34 (2006.01) C11D 1/72 (2006.01) C11D 1/88 (2006.01)

Patent

CA 2307642

Cleaning and deoxidizing aluminum surfaces can be accomplished simultaneously by contacting the surfaces with an aqueous liquid composition that contains as its cleaning active ingredients (i) alcohols and/or ether alcohols, (ii) alkaline builders, and (iii) alkali stable surfactants, and, optionally but preferably, also contains fluoride and chelating agents.

On peut nettoyer et désoxyder simultanément des surfaces d'aluminium en les mettant en contact avec une composition liquide aqueuse contenant comme ingrédients actifs de nettoyage, (i), des alcools et/ou des éthers alcooliques, (ii), des adjuvants alcalins et (iii), agents tensio-actifs alcalins stables. Cette composition est également susceptible de renfermer, de manière facultative, de préférence toutefois, du fluorure et des agents chélatants.

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