Method and composition for removing sulfide- containing...

Details Method and composition for removing sulfide- containing... Method and composition for removing sulfide- containing...

C - Chemistry, Metallurgy

23

G

149/19

C23G 1/02 (2006.01)

Patent

CA 1151983

ABSTRACT OF THE DISCLOSURE An aqueous cleaning composition is described herein which contains glyoxylic acid dissolved in an aqueous non-oxidizing acid. This cleaning solution is effective in removing acid-soluble, sulfide-containing scale from metal surfaces (e.g. refinery equipment) without the evolution of gaseous hydrogen sulfide. 29,132-F

384999

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