C - Chemistry – Metallurgy – 23 – F
Patent
C - Chemistry, Metallurgy
23
F
C23F 11/14 (2006.01) B01D 53/14 (2006.01) D21C 3/22 (2006.01) D21H 21/38 (2006.01)
Patent
CA 2339982
A method for controlling corrosion of metals, particularly ferrous-based metals in contact with aqueous systems is disclosed, which includes treating industrial waters with a tetrazolium salt of general formula (I) wherein R1, R2, and R3 may be various organic or inorganic substituents, including monomers or oligomers of the above structure.
L'invention concerne un procédé de lutte contre la corrosion des métaux, en particulier des métaux à base de fer en contact avec des systèmes aqueux, ce procédé consistant notamment à traiter des eaux industrielles au moyen d'un sel de tétrazolium de formule générale (I), dans laquelle R¿1?, R¿2?, et R¿3? peuvent représenter divers substituants organiques ou inorganiques, y compris des monomères ou des oligomères de la formule susmentionnée.
Cheng Longchun
Whitaker Kim A.
Betzdearborn Inc.
Moffat & Co.
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