Iron phosphatisation using substituted monocarboxilic acids

Details Iron phosphatisation using substituted monocarboxilic acids Iron phosphatisation using substituted monocarboxilic acids

C - Chemistry, Metallurgy

23

C

C23C 22/44 (2006.01) C23C 22/10 (2006.01) C23C 22/36 (2006.01) C23C 22/42 (2006.01)

Patent

CA 2190991

Described are a concentrate, a working solution and a process for iron phosphating of metals, in which the solution contains nitrobenzene sulfonic acid and substituted short-chain monocarboxylic acids of the amino acid and/or hydroxycarboxylic acid type as the accelerators.

L'invention concerne un concentré, la solution d'application et un procédé de phosphatation ferrique de métaux, selon lequel la solution contient, comme accélérateurs, de l'acide sulfonique de nitrobenzène et des acides monocarboxyliques substitués à chaîne courte du type des acides aminés et/ou des acides carboxyliques d'hydroxy.

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