| 摘要 |
In one embodiment, the present invention relates to a process for recovering organic hydroxide from contaminated solutions containing the organic hydroxide and impurities including charging the contaminated solution to a first electrochemical cell containing at least two compartments, a cathode, an anode and a size selective divider and passing a current through the first electrochemical cell whereby impurities migrate through the size selective divider; recovering a second solution containing organic ions from the first electrochemical cell and charging the second solution to a second electrochemical cell containing at least two compartments, a cathode, an anode and a divider and passing a current through the second electrochemical cell whereby the organic hydroxide is purified; and recovering the organic hydroxide from the second electrochemical cell. In another embodiment, the present invention relates to a process for recovering onium hydroxide from contaminated solutions containing the onium hydroxide and impurities including forming a first solution containing an onium salt and impurities from the contaminated solution; contacting the first solution with a size selective membrane under pressure, wherein at least a portion of the impurities pass through the size selective membrane thereby providing a second solution containing an onium salt and a decreased amount of impurities; charging the second solution to an electrochemical cell containing at least two compartments, a cathode, an anode and a divider and passing a current through the cell whereby the onium hydroxide is purified; and recovering the onium hydroxide from the cell.
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