Process for inhibiting corrosion of vapor/condensed water system

Details Process for inhibiting corrosion of vapor/condensed water system Process for inhibiting corrosion of vapor/condensed water system

1990-01-23

1991-06-25

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Maintaining environment nondestructive to metal

252 8555, 252392, 252403, C23F 1104

Patent

active

050265237

ABSTRACT:
An anticorrosive for vapor/condensed water systems, which comprises at least one aminodiol represented by the following general formula: ##STR1## (in which R.sub.1, R.sub.2 and R.sub.3 each represents --H, --CH.sub.3, --C.sub.2 H.sub.5 or C.sub.3 H.sub.7 ; and n represents an integer of 0 to 2) and the process for inhibiting the corrosion of vapor/condensed water systems, which comprises at least one aminodiol as mentioned above to a boiler feed water at the concentration of 0.1 to 500 mg/l. The aminodiol, when added to feed water, migrates into condensed water in large quantities and inhibits the corrosion of piping systems and boilers in highly effective manner.

REFERENCES:
patent: 3152187 (1964-10-01), Coyne et al.
patent: 3976441 (1976-08-01), Bialy et al.
patent: 4206172 (1980-06-01), Sujdak
CA94(20): 159,573b, Abstract of JP56-008,495, Jan. 28, 1981.
CA108(12): 90071g, Abstract of JP62-205,292, Sep. 9, 1987.

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