Process for recovering onium hydroxides or onium salts from solutions containing onium compounds using electrochemical ion exchange
AssigneeSachem, Inc.
InventorsRoger D. Moulton, David R. Hulme
Life of this patent
Estimating the term…
Abstract
In one embodiment, the present invention relates to a process for recovering one of an onium hydroxide and onium salt from a solution containing an onium compound involving the steps of charging the solution containing the onium compound to an electrochemical cell comprising at least two compartments, a cathode, an anode, and a divider, wherein at least one compartment comprises an ion exchange material; passing a current through the electrochemical cell whereby the onium hydroxide or the onium salt is produced; and recovering the onium hydroxide or the onium salt from the electrochemical cell.
Claims38
A process for recovering one of an onium hydroxide and an onium salt from a solution containing an onium compound, comprising:
- (A) charging the solution containing the onium compound to an electrochemical cell comprising at least two compartments, a cathode, an anode, and a divider, wherein at least one compartment comprises an ion exchange material;
- (B) passing a current through the electrochemical cell whereby the onium hydroxide or the onium salt is produced;
- and
- (C) recovering the onium hydroxide or the onium salt from the electrochemical cell.
A process for recovering one of an onium hydroxide and an onium salt from a solution containing an onium compound, comprising:
- (A) charging the solution containing the onium compound to an electrochemical cell comprising at least two compartments, a cathode, an anode, and a cation selective membrane, wherein at least one compartment comprises a cation exchange material;
- (B) passing a current through the electrochemical cell whereby the onium hydroxide or the onium salt is produced;
- and
- (C) recovering the onium hydroxide or the onium salt from the electrochemical cell.
A process for recovering a quaternary ammonium hydroxide from a solution containing a quaternary ammonium compound, comprising:
- (A) charging the solution containing the quaternary ammonium compound to an electrochemical cell comprising at least two compartments, a cathode, an anode, and a cation selective membrane, wherein at least one compartment comprises an ion exchange material;
- (B) passing a current through the electrochemical cell whereby the quaternary ammonium hydroxide is regenerated;
- and
- (C) recovering the quaternary ammonium hydroxide from the electrochemical cell.
Dependencies are inferred from the claim text.