| 摘要 |
A process is described for reducing the acid content of a solution comprising a hydroxylamine salt and an acid, and the process is also useful for converting a hydroxylamine salt to a hydroxylamine. In one embodiment, the process of the present invention comprises the steps of: (A) providing an electrolysis cell comprising an anolyte compartment containing an anode, a catholyte compartment containing an oxygen-consuming cathode, and an anionic membrane divider separating said compartments; (B) providing an aqueous solution comprising an acid and water in the anolyte compartment, and an aqueous solution comprising the hydroxylamine salt, water and optionally, an acid in the catholyte compartment; (C) charging an oxygen-containing gas to the catholyte compartment; (D) passing a direct current through the electrolysis cell for a period of time effective to reduce the acid content in the catholyte compartment and/or to convert the salt to a hydroxylamine; and (E) recovering a hydroxylamine or a hydroxylamine salt solution containing a reduced amount of acid from the catholyte compartment.
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