Chemistry: electrical and wave energy – Processes and products – Electrophoresis or electro-osmosis processes and electrolyte...
Patent
1997-04-10
1999-05-18
Gorgos, Kathryn
Chemistry: electrical and wave energy
Processes and products
Electrophoresis or electro-osmosis processes and electrolyte...
204522, 204537, 205437, C25B1/34
Patent
active
059048239
ABSTRACT:
In one embodiment, the present invention provides a method of preparing hydroxylamine from a hydroxylammonium salt solution, including providing an electrochemical cell containing an anode, a cathode, a cation selective membrane and an anion selective membrane, wherein the cation selective membrane is positioned between the cathode and the anion selective membrane, and the anion selective membrane is positioned between the cation selective membrane and the anode, thereby defining a feed compartment between the cation selective membrane and the anion selective membrane, a recovery compartment between the cathode and the cation selective membrane, and an acid compartment between the anion selective membrane and the anode; charging a first solution to the acid compartment and a second solution the recovery compartment; charging the hydroxylammonium salt solution to the feed compartment; passing a current through the cell to produce hydroxylamine in the recovery compartment; and recovering hydroxylamine from the recovery compartment.
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Bathia et al., "Hydroxylamine Production by Electroreduction of a Nitric Oxide in a Trickle Bed Cell", The Canadian Journal of Chemical Engineering, vol. 57, No. 5, pp. 631-637, 1979. No month available.
Colucci et al., "The Electro Reduction of Nitric Oxide on Bulk Platinum in Acid Solutions", Electrochimica Acta, vol. 4, pp. 521-528, 1985. No month available.
Sharifian Hossein
Shay Christopher D.
Gorgos Kathryn
Parsons Thomas H.
Sachem, Inc.
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