Composition and method for scavenging oxygen
AssigneeW. R. Grace & Co.-Conn.
InventorsChih M. Hwa, Dionisio G. Cuisia, Ronald L. Oleka
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Abstract
A composition and method of inhibiting corrosion in boiler-steam condensate systems comprising adding to the system N,N-dihydrocarbylhydroxylamine and N-hydrocarbylhydroxylamine in amounts effective to inhibit corrosion.
Claims10
A method of inhibiting corrosion in boiler-steam condensate systems having low temperature areas and high temperature areas comprising adding to the system water-soluble N,N-dihydrocarbylhydroxylamine and N-hydrocarbylhydroxylamine in amounts effective to inhibit corrosion and wherein the weight ratio of N,N-dihydrocarbylhydroxylamine to N-hydrocarbylhydroxylamine is from 50:1 to 1:50 respectively.
A corrosion inhibiting composition for boilersteam condensate systems comprising water-soluble N,N-dihydrocarbylhydroxylamine, N-hydrocarbylhydroxylamine and a neutralizing amine;
- the weight ratio of the N,N-dihydrocarbylhydroxylamine component to the N-hydrocarbylhydroxylamine component being between about 50:1 to about 1:50, and the weight ratio of the N,N-dihydrocarbylhydroxylamine component to the neturalizing amine component being between about 10:1 to about 1:100.
Dependencies are inferred from the claim text.