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| Number | Title | Issue Date |
| 5242565 | Device for electrochemical generation of gases for the transportation of fluids and similar mediums The device according to the present invention comprises a galvanic cell including a gas generating electrode, a counter electrode and an aqueous electrolyte enclosed in a housing. The device has one or more openings, by which the generated gas is released... | 09/07/1993 |
| 5232561 | Electrolytic method of preparing compounds with a gas permeable electrode A method of electrolytically producing an organic compound is disclosed, wherein an organic solvent and an electrolyte which is dissolved therein is placed in an anodic or cathodic chamber. The chambers are separated by a semi-permeable membrane. At least... | 08/03/1993 |
| 5230780 | Electrolyzing halogen-containing solution in a membrane cell A coating is now disclosed which is especially serviceable as an improved electrocatalytic coating for an electrode. The coating is a crystalline coating of mixed oxides. The oxides are of iridium, ruthenium and titanium, in very specially defined proport... | 07/27/1993 |
| 5228958 | Regenerating slurries for use in zinc-air batteries A process for the regeneration of an at least partially spent Zn-alkali slurry for use in metal-air batteries, including subjecting the slurry to at least the steps of (i) separating the slurry into dissolved and undissolved phases; (ii) electrolyzing the... | 07/20/1993 |
| 5227030 | Electrocatalytic cathodes and methods of preparation Cathodes useful in an electrolytic cell, such as a chlor-alkali cell, are disclosed which have a metallic-surfaced substrate coated with a catalytic coating composition. In one aspect, the catalytic coating includes a base layer of at least one primary el... | 07/13/1993 |
| 5227032 | Method for producing oxygen from lunar materials Methods for producing oxygen from metal oxides bearing minerals, e.g. ilmenite, the process including producing a slurry of the minerals and hot sulfuric acid, the acid and minerals reacting to form sulfates of the metal, adding water to the slurry to dis... | 07/13/1993 |
| 5221453 | Silver vanadium oxide cathode material and method of preparation Improved high rate cathode material and method of making same by chemical addition reaction.... | 06/22/1993 |
| 5221455 | Bipolar membrane and method for its production Disclosed is a bipolar membrane comprising a cation-exchange membrane in which a cation-exchange group present at least at its adhered surface has been ion-exchanged with a heavy metal ion, which is adhered closely to an anion-exchange membrane at a peel ... | 06/22/1993 |
| 5217583 | Composite electrode for electrochemical processing and method for using the same in an electrolytic process for producing metallic aluminum A dimensionally stable combustion synthesis product of a composition containing at least 20% by weight of a particulate combustible material; at least 15% by weight of a particulate filler material capable of providing desired mechanical and electrical pr... | 06/08/1993 |
| 5215632 | Fluoride removal from aqueous streams Disclosed is a method of removing fluoride and sulfate ions from an aqueous stream by adding calcium chloride and a source of phosphate ion to the stream to form a first precipitate of calcium sulfate and a compound of calcium, fluoride, and phosphate. Th... | 06/01/1993 |
| 5213671 | Membrane guard for a membrane electrode cell A guard for a membrane electrode cell in an electrocoat paint system that separates the counter-electrode, the object being painted, from the membrane shell housing that surrounds the electrode, which is located inside the membrane. The guard is of a grid... | 05/25/1993 |
| 5211827 | Electrochemical cell with ionic semiconductor separator An electrochemical cell employs an ionic semiconductor material as a separator between an anolyte and a catholyte. Ionic semiconductor material includes 10 to approximately 50 percent by weight of a hydrogel which is dispersed within an inert nonporous ma... | 05/18/1993 |
| 5205911 | Cathode restoration Chlor-alkali electrolytic cells can have separators used with metal cathodes. These cells may often be subject to frequent current interruptions. Particularly where the cathode and separator exhibit extended life, these interruptions may be numerous. Ther... | 04/27/1993 |
| 5202009 | Electrolyte solid polymer reticule A cross-linked polymer solid electrolyte of a polyether having amine functions cross-linked by a curing compound including two epoxy functions, and thereby defining a three-dimensional lattice which complexes an ionizable salt of the formula M+... | 04/13/1993 |
| 5198079 | Construction and way of operation of a gas diffusion electrode for the electrochemical discovery of materials from aqueous solutions An easy-to-disassemble vertical gas diffusion electrode, assembly of sandwich type construction is provided with a gas feed tube to the highest point and a discharge line from the lowest point of the electrode and is operated with its gas chamber held und... | 03/30/1993 |
| 5192401 | Diaphragm for use in chlor-alkali cells A liquid permeable diaphragm for use in an electrolytic chlor-alkali cell, the diaphragm being made of fibrous material and having particulate zirconia deposited in the interstices of the fibrous matrix, prior to installing the diaphragm in the cell. Also... | 03/09/1993 |
| 5192411 | Electrode for electrochemical reactors In the electrode in the form of a rectangular parallelepiped composed of impregnated graphite material for electrochemical reactors, the electrode (4,5) is provided with openings (8,9,10,11) extending perpendicular to its active electrode surfaces (6,7) a... | 03/09/1993 |
| 5190624 | Electrorheological fluid chemical processing The present invention comprises electrorheological fluids and processes. lying an electric field to an electrorheological fluid composition electrically controls chemical reactions therein. The chemical reactions may comprise those wherein the acidity of... | 03/02/1993 |
| 5190629 | Electrophoresis medium membrane An electrophoresis medium membrane comprises a planar support, a planar cover sheet, and a layer of an electrophoresis gel medium provided between the planar support and the planar cover sheet. The electrophoresis gel medium contains an aqueous polyacryla... | 03/02/1993 |
| 5188712 | Diaphragm for use in chlor-alkali cells A liquid permeable diaphragm for use in an electrolytic chlor-akali cell, the diaphragm being made of fibrous material and having deposited thereon and cementitiously bonded to the anode face thereof at least one topcoating of inorganic, particulate, refr... | 02/23/1993 |
| 5188721 | Plate anode having bias cut edges A fixed anode structure having at least one broad plate face utilized in electrodepositing a coating on a moving cathode has a segmented plate anode. The plate anode can have a broad face that is generally flat or curvilinear in relation to the shape of t... | 02/23/1993 |
| 5186806 | Ceramic distribution members for solid state electrolyte cells and method of producing A solid state electrolyte cells apparatus and method of producing is disclosed. The apparatus can be used for separating oxygen from an oxygen-containing feedstock or as a fuel cell for reacting fluids. Cells can be stacked so that fluids can be introduce... | 02/16/1993 |
| 5186793 | Oxygen concentrator utilizing electrochemical cell An oxygen concentration system for producing oxygen from air comprises an electrochemical oxygen generator mounted within an inner housing. The generator has an outer surface and is adapted to extract oxygen from air by means of an electrochemical reactio... | 02/16/1993 |
| 5183548 | System and method for continuous separation of isotopes The invention is both a system and method for continuously separating heavier from lighter isotopes of a particular element, such as zirconium. The system comprises a housing, a column assembly rotatably mounted with respect to the housing which includes ... | 02/02/1993 |
| 5183543 | Polyanilines, process for the preparation thereof and cells using them There is provided a polyaniline having a thickness of 0.3 to 5 mm which is suitable for an electronic material, particularly for an electrode material in a cell. Also provided is a cell comprising a positive electrode, a negative electrode and an electrol... | 02/02/1993 |
| 5183546 | Optimized multiporous carbon bed for electrochemical filters An electrochemical filter which consists of a fibrous electrically conducting material to which there are bonded microscopic particles of carbon or active charcoal. A variety of fibers can be used: carbon fibers, graphite fibers, fibers of inert metal etc... | 02/02/1993 |
| 5181994 | Process for the preparation of chromic acid A process for the production of chromic acid, comprising a) dissolving ferrochrome in sulphuric acid, optionally with the addition of catholyte and/or anolyte overflow from the electrolysis, b) removing undissolved constituents by filtration, c) adding a reducing a... | 01/26/1993 |
| 5181995 | Electrochemical process and apparatus for reducing oxidants of vehicle interior air A porous or nonporous hydrophilic, insoluble electrolyte allows a reducing condition to be produced at a negative electrode from a low content of moisture in the electrolyte and reduces oxidants by catalyzed production of water. A constant current with a ... | 01/26/1993 |
| 5176801 | Sulfate removal from alkali metal chlorate solutions and production of alkali metal chlorate including said removal A process for the removal of substantially chromium free sulfate from aqueous alkali metal solutions containing chromate and sulfate which includes mixing the solutions while having a pH of between about 2.5 and 4.5 with a calcium-containing material for ... | 01/05/1993 |
| 5171644 | Electrochemical cell electrode A supported catalyst useful in the preparation of an electrode for an electrochemical cell which comprises the residue remaining after heating at about 500° to about 700° C. a transition metal and a polymer such as polyvinylpyridine all adsorbed on a su... | 12/15/1992 |
| 5169506 | Oxygen concentration system utilizing pressurized air An oxygen concentration system for producing oxygen from pressurized air comprises an electrochemical oxygen generator which selectively extracts oxygen from air by an electrochemical reaction. The oxygen concentration system includes first, second, and t... | 12/08/1992 |
| 5169508 | Graphite electrode A graphite electrode includes a first step of a substrate a deposition layer of fine globular graphite particles on the substrate, and subsequently a metal film of an iron group element or an alloy thereof on the deposition layer, and then a graphite laye... | 12/08/1992 |
| 5167777 | Process and apparatus for the removal of oxyhalide species from aqueous solutions A process for electrochemically treating an aqueous solution containing inorganic oxyhalide species is disclosed in which the aqueous solution is fed into the catholyte compartment of an electrochemical reduction cell using a high surface area cathode sep... | 12/01/1992 |
| 5167788 | Metal substrate of improved surface morphology A metal surface is now described having enhanced adhesion of subsequently applied coatings. The substrate metal of the article, such as a valve metal as represented by titanium, is provided with a highly desirable surface characteristic for subsequent coa... | 12/01/1992 |
| 5164060 | Ion exchange membrane having increased efficiency in proton exchange processes An ion exchange membrane or ion exchange membrane/electrode assembly having increased efficiency in proton exchange processes as the result of membrane hydration processing comprising heating a hermetically sealed membrane or membrane/electrode assembly a... | 11/17/1992 |
| 5164062 | Electrocatalytic cathodes and method of preparation Cathodes useful in electrolytic cells, such as a chlor-alkali cell, are disclosed which have a metallic-surfaced substrate coated with an electrocatalytic coating. The electrocatalytic coating includes palladium and at least one primary electrocatalytic m... | 11/17/1992 |
| 5160416 | Process for the production of perchloric acid An electrolytic filter press membrane cell and a method of operating the cell to produce concentrated perchloric acid are disclosed. The cell employs concentrated hypochlorous acid as the anolyte and operates with a two-stage single oxidation process at h... | 11/03/1992 |
| 5160586 | Ozone decomposing reactor There is disclosed an ozone decomposing reactor which comprises: a catalyst structure composed of a carrier having at least one passage extending therethrough for allowing an ozone containing fluid to pass through the catalyst structure and a catalyst and an e... | 11/03/1992 |
| 5158654 | Ozone decomposing reactor and regeneration thereof There is disclosed an ozone decomposing reactor which comprises: an air permeable carrier containing a catalyst and an electroconductive material therein or thereon; and electrodes attached to the sheet to electrify and heat the sheet, whereby to decompose ozo... | 10/27/1992 |
| 5158576 | Process of dyeing synthetic fabrics using high-boiling ester solvents Synthetic textile fibers are dyed in a waterless coloring composition composed of a high-boiling ester solvent and a dye that (a) is soluble to the extent of at least 1.5% in the solvent, (b) provides a depth of coloration, expressed as yield, of at least... | 10/27/1992 |
