Methods for inhibiting the corrosion of iron-containing and copp

Details Methods for inhibiting the corrosion of iron-containing and copp Methods for inhibiting the corrosion of iron-containing and copp

1991-11-19

1993-03-16

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Maintaining environment nondestructive to metal

422 14, 252390, 252394, C23F 1108

Patent

active

051942232

ABSTRACT:
Methods are provided for simultaneously inhibiting the corrosion of iron-containing and copper-containing metals in contact with boiler feedwaters. The methods comprise adding an effective amount of 1,10-phenanthroline to the boiler feedwater system for which corrosion inhibition is desired.

REFERENCES:
patent: 4657785 (1987-04-01), Kelly et al.
CA 74(16): 82358n, "Chelation Compounds as Cooling Water Corrosion Inhibitors," Betz Lab., Inc., (1970).
"Corrosion Inhibition by Phenanthrolines", Corrosion 46 (1990) pp. 376-379; Agarawala.

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