Electrolysis: processes – compositions used therein – and methods – Electrolytic material treatment – Organic
Patent
1998-01-20
1999-10-19
Phasge, Arun S.
Electrolysis: processes, compositions used therein, and methods
Electrolytic material treatment
Organic
205746, 204522, 204530, 204537, 204541, C02F 1461
Patent
active
059683384
ABSTRACT:
In one embodiment, the present invention relates to a process for recovering an onium hydroxide from a solution containing an onium compound, including contacting the solution with a cation exchange material so that at least a portion of onium cations from the onium compound are adsorbed by the cation exchange material; contacting an acid with the cation exchange material to elute an onium salt; charging the onium salt to an electrochemical cell containing at least three compartments, a cathode, an anode, and in order from the anode to the cathode, a bipolar membrane and a cation selective membrane, and passing a current through the cell whereby the onium hydroxide is regenerated; and recovering the onium hydroxide from the cell. In another embodiment, the present invention relates to a process for recovering an onium hydroxide from a solution containing an onium compound, including contacting the solution with a cation exchange material so that at least a portion of onium cations from the onium compound are adsorbed by the cation exchange material; contacting an acid with the cation exchange material to elute an onium salt; charging the onium salt to an electrochemical cell containing at least two compartments, a cathode, an anode, and an anion selective membrane therebetween, and passing a current through the cell whereby the onium hydroxide is regenerated; and recovering the onium hydroxide from the cell.
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Hellums Mark
Hulme David R.
Moulton Roger
Wilson Wilfred W.
Parsons Thomas H
Phasge Arun S,.
Sachem, Inc.
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