Alkali metal hydroxide evaporator system
AssigneeSunbelt Chlor Alkali Partnership
InventorsJonathan B. Diminnie, Sanders H. Moore, James F. Pickering, Thomas E. Corvin
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Abstract
A process for reducing the corrosion of nickel metal in an alkali metal hydroxide evaporator equipment which comprises the step of impressing a total protection potential directly upon the nickel metal material in alkali metal hydroxide evaporator that is in contact with an aqueous alkali metal hydroxide solution during evaporation of that solution; said total potential being sufficient to reduce the amount of corrosion of the nickel metal to an oxide that may dissolve in the alkali metal hydroxide solution.
Claims15
A process for reducing the corrosion of nickel in alkali metal hydroxide evaporator equipment which comprises the step of impressing a total protection potential directly upon at least a portion of the nickel material in alkali metal hydroxide evaporator that is in contact with an aqueous alkali metal hydroxide solution during evaporation of that solution;
- said total protection potential being sufficient to reduce the amount of corrosion of nickel to a nickel oxide that may dissolve in the alkali metal hydroxide solution.
An alkali metal hydroxide evaporator system that has reduced corrosion of nickel material present in alkali metal hydroxide evaporator equipment wherein at least one set of an anode and a cathode are attached to the nickel-containing alkali metal hydroxide evaporator system to apply a total protection potential directly upon at least a portion of the nickel material in the alkali metal hydroxide evaporator that is in contact with an aqueous alkali metal hydroxide solution during evaporation of that solution, said potential being sufficient to reduce the amount of corrosion of the nickel material to an oxide that may dissolve in the alkali metal hydroxide solution.
Dependencies are inferred from the claim text.