Method of inhibiting cold end corrosion in boilers

Details Method of inhibiting cold end corrosion in boilers Method of inhibiting cold end corrosion in boilers

C - Chemistry, Metallurgy

23

F

31/34

C23F 11/00 (2006.01)

Patent

CA 1295474

Ref. 03-6588 METHOD OF INHIBITING COLD END CORROSION IN BOILERS Abstract of the Disclosure A liquid borate is added to sulfur trioxide-containing combustion gases at a temperature of from about 250 to about 1000°F. in a boiler or other furnace system. The borate neutralizes sulfuric acid in the gases and inhibits sulfuric acid corrosion and deposition on metal surfaces of the system that contact the gases. An organic deposit modifyinq agent such as sorbitol and an additional acid neutralizing agent such as an alkali metal hydroxide, aluminate, or silicate may also be added to the combustion qases.

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