Electrolytic apparatus, methods for purification of aqueous solutions and synthesis of chemicals
First Claim
1. An electrolysis cell, which comprises at least one anode and at least one cathode as electrodes positioned in an electrolyzer zone, conduit means for introducing an electrolyte to said electrodes for electrolysis, said electrolysis cell having an open configuration, and excluding a cell housing intended for retaining an electrolyte solution in said electrolyzer zone.
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Accused Products
Abstract
Electropurification of contaminated aqueous media, such as ground water and wastewater from industrial manufacturing facilities like paper mills, food processing plants and textile mills, is readily purified, decolorized and sterilized by improved, more economic open configuration electrolysis cell designs with electrodes comprising a plurality of conductive porous elements in electrical contact with one another. The cells may be divided or undivided, and connected in monopolar or bipolar configuration. When coupled with very narrow capillary gap electrodes more economic operation, particularly when treating solutions of relatively low conductivity is assured. The novel cell design is also useful in the electrosynthesis of chemicals, both organic and inorganic types, such as hypochlorite bleaches and other oxygenated species.
108 Citations
42 Claims
- 1. An electrolysis cell, which comprises at least one anode and at least one cathode as electrodes positioned in an electrolyzer zone, conduit means for introducing an electrolyte to said electrodes for electrolysis, said electrolysis cell having an open configuration, and excluding a cell housing intended for retaining an electrolyte solution in said electrolyzer zone.
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21. A method for electropurification of a contaminated solution, which comprises the steps of:
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(i) providing an electrolysis cell comprising at least one anode and at least one cathode as electrodes positioned in an electrolyzer zone, at least one of said electrodes comprising a plurality of conductive porous elements positioned adjacent to and in electrical contact with one another, conduit means for introducing an electrolyte to said electrodes for electrolysis, said electrolysis cell having an open configuration, and excluding a cell housing intended for retaining an electrolyte solution in said electrolyzer zone;
(ii) introducing into the electrolysis cell of (i) a contaminated electrolyte solution, and (iii) imposing a voltage across the electrodes of said electrolysis cell to electrolyze the contaminated solution to modify the contaminants therein. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 40, 41)
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36. A method for electrochemical synthesis of chemicals, which comprises the steps of:
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(i) providing an electrolysis cell which comprises at least one anode and at least one cathode as electrodes positioned in an electrolyzer zone, conduit means for introducing an electrolyte to said electrodes for electrolysis, said electrolysis cell having an open configuration, and excluding a cell housing intended for retaining an electrolyte solution in said electrolyzer zone;
(ii) introducing into the electrolysis cell of (i) an electrolyte comprising an electroactive substrate, and (iii) imposing a voltage across the electrodes of said electrolysis cell to electrolyze the electrolyte to form a useful product. - View Dependent Claims (37, 38, 39)
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42. A method for electropurification of a contaminated solution, which comprises the steps of:
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(i) providing an electrolysis cell comprising at least one anode and at least one cathode as electrodes positioned in an electrolyzer zone, conduit means for introducing an electrolyte to said electrodes for electrolysis, said electrolysis cell having an open configuration, and excluding a cell housing intended for retaining an electrolyte solution in said electrolyzer zone;
(ii) introducing into the electrolysis cell of (i) a contaminated electrolyte solution, and (iii) imposing a voltage across the electrodes of said electrolysis cell to electrolyze the contaminated electrolyte solution to modify the contaminants therein.
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Specification