Synthesis of onium hydroxides from onium salts

Details Synthesis of onium hydroxides from onium salts Synthesis of onium hydroxides from onium salts

1997-04-03

1998-12-29

Gorgos, Kathryn L.

Chemistry: electrical and wave energy

Processes and products

Electrophoresis or electro-osmosis processes and electrolyte...

204535, B01D 6144

Patent

active

058535551

ABSTRACT:
The present invention provides a process for preparing onium hydroxide from a corresponding onium salt and for purifying onium hydroxide including providing an electrochemical cell containing a cathode, an anode, a divider and a bipolar membrane, the bipolar membrane having an anion selective side facing the anode and a cation selective side facing the cathode, wherein the divider is positioned between the cathode and the bipolar membrane, and the bipolar membrane is positioned between the divider and the anode, thereby defining a feed compartment between the divider and the bipolar membrane, a recovery compartment between the divider and the cathode, and a water compartment between the bipolar membrane and the anode; charging a solution containing at least one of the onium salt and the onium hydroxide to be purified to the feed compartment; charging a liquid electrolyte to the other compartments; passing a current through the electrochemical cell to produce the onium hydroxide in the recovery compartment; and recovering the onium hydroxide from the recovery compartment.

REFERENCES:
patent: 3402115 (1968-09-01), Campbell et al.
patent: 3523068 (1970-08-01), Eisenbauer et al.
patent: 4391680 (1983-07-01), Mani et al.
patent: 4394226 (1983-07-01), Wade et al.
patent: 4578161 (1986-03-01), Buonomo et al.
patent: 4740281 (1988-04-01), Chlanda et al.
patent: 4904357 (1990-02-01), Sharifian et al.
patent: 4938854 (1990-07-01), Sharifian et al.
patent: 5006211 (1991-04-01), Paleologou et al.
patent: 5198086 (1993-03-01), Chlanda et al.
patent: 5207879 (1993-05-01), Butterworth
patent: 5240579 (1993-08-01), Kedem
patent: 5250159 (1993-10-01), Butterworth
patent: 5286354 (1994-02-01), Bard et al.
patent: 5358609 (1994-10-01), Drackett
patent: 5389211 (1995-02-01), Sharifian et al.
patent: 5391268 (1995-02-01), Kaczur et al.
patent: 5397445 (1995-03-01), Umemura et al.
patent: 5447610 (1995-09-01), Sharifian
Genders, "Electochemical Salt Splitting", Watts New: A Newsletter from The Electrosynthesis Company, Inc., vol. 1, No. 1, pp. 1-4, Sep. 1995.
Chang, "Conversion Of Ethylene Diamine Dihydrochloride Into Ethylenediamine By Electrodialytic Water-Splitting", Journal of Applied Electrochemistry, pp. 731-736, Nov. 1978.

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