Importance

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Abstract

A power generation system utilizing an electrochemical cell comprising a reactive metal anode, a cathode spaced from the anode and an electrolyte comprising an aqueous solution of the hydroxide of the reactive metal is disclosed. The hydroxide concentration in the electrolyte is controlled by contacting the electrolyte with acids or salts thereof having a first anion comprising at least two elements with at least one of the elements being a non-metal. Upon contact with the electrolyte, the anion hydrolyzes to yield at least second or third anions which react with the hydroxide of the reactive metal to yield compounds thereof which are insoluble in the electrolyte. The insoluble compounds are separated from the electrolyte and the electrolyte is recirculated to the electrochemical cell.

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First Claim