| Patent Number |
Title Of Patent |
Date Issued |
| RE29419 |
Finely divided RuO.sub.2 /plastic matrix |
September 27, 1977 |
| Finely divided RuO.sub.2 serves as an efficient and long-lived electrocatalyst when dispersed in a polymer matrix chemically and mechanically inert to an electrolyte. When applied to a substrate, generally an electrically conductive substrate, an electrode, particularly suited for us |
| 4318795 |
Valve metal electrode with valve metal oxide semi-conductor face and methods of carrying out ele |
March 9, 1982 |
| Describes chlorine resistant metal electrodes, preferably of valve metals such as titanium and tantalum, having coatings of mixed metal oxides, preferably valve metal oxides and platinum group metal oxides, which have been doped to provide semi-conducting surfaces on the electrodes, whic |
| 4302321 |
Novel sintered electrodes |
November 24, 1981 |
| Novel electrodes comprising a body formed of a sintered mixture of powders of at least one film-forming metallic material and at least one additive metal selected from the group consisting of Cr, Mn, Re, Fe, Co, Ni, Ca, Ag, Au, Zn, Cd, Ge, Sn, Pb, La and the lanthanide series of the Peri |
| 4295943 |
Process for the electrolytic production of manganese dioxide |
October 20, 1981 |
| In a process for the production of manganese dioxide comprising electrodepositing manganese dioxide from an aqueous manganese containing electrolyte on to an anode and removing the manganese dioxide from the anode, the improvement comprising using a flexible material as the anode and |
| 4288302 |
Method for electrowinning metal |
September 8, 1981 |
| Novel dimensionally stable electrodes constituted by a film forming metallic material alloyed with at least one member of the group consisting of metal belonging to Groups VIB, VIIB, VIII, IIB, IB, IVA, lanthanum and lanthanide series of the Periodic Table, such as chromium, manganese, |
| 4285799 |
Electrodes for electrolytic processes, especially metal electrowinning |
August 25, 1981 |
| PCT No. PCT/EP79/00020 Sec. 371 Date Nov. 28, 1979 Sec. 102(e) Date Nov. 26, 2979 PCT Filed Mar. 27, 1979 PCT Pub. No. WO79/00840 PCT Pub. Date Oct. 18, 1979An electrode for electrolytic processes such as the recovery of uranium dioxide from seawater comprises an electrically-conductive |
| 4272354 |
Electrodes for electrolytic processes |
June 9, 1981 |
| Electrodes for electrolytic processes comprise an electrically-conductive and corrosion-resistant substrate, having a coating thereon which contains a solid solution of tin dioxide and bismuth trioxide, preferably in a ratio of 9:1 to 4:1 by weight of the respective metals. This solid |
| 4267025 |
Electrodes for electrolytic processes, especially perchlorate production |
May 12, 1981 |
| An electrode especially for the production of chlorates and perchlorates comprising an electrically-conductive corrosion-resistant substrate having an electrocatalytic coating which is preferably a mixture of 40 to 85 parts by weight of platinum, 0 to 20 parts by weight of palladium and |
| 4246324 |
Consumable replaceable anodes for batteries |
January 20, 1981 |
| A battery comprising an inert container housing a plurality of corrosion resistant gas depolarized metal cathode elements in hollow box-like form and consumable anode elements in spaced relationship with said cathode elements. At least one wall of each cathode element has a gas-permeable |
| 4235695 |
Novel electrodes and their use |
November 25, 1980 |
| Novel dimensionally stable, porous electrodes made of vitreous or glassy carbon forming a porous body optionally provided on at least a portion of its outer surface with a coating containing an electrocatalytic agent and to electrochemical cells containing the said electrodes and to a me |
| 4214970 |
Novel electrocatalytic electrodes |
July 29, 1980 |
| Novel electrodes for oxygen ionization half-cell electrode reactions comprising an electrically conductive porous base having over at least a portion thereof a coating containing an electrocatalyst comprising (1) at least one metal selected from the group consisting of silver and a p |
| 4187155 |
Molten salt electrolysis |
February 5, 1980 |
| A novel method of molten salt electrolysis and novel electrolytic cells for molten salt electrolysis wherein the anodes for the electrolysis are comprised of a self-sustaining matrix of sintered powders of at least one oxycompound such as oxides, multipleoxides, mixed oxides, oxyhalides |
| 4181777 |
Rechargeable zinc halogen battery |
January 1, 1980 |
| A rechargeable zinc halogen battery has an aqueous electrolyte containing ions of zinc and halogen and an amount of polysaccharide and/or sorbitol sufficient to prevent zinc dendrite formation during recharging. The electrolyte may also contain trace amounts of metals such as tungsten, |
| 4170527 |
Production of electrolytic manganese dioxide |
October 9, 1979 |
| In the production of electrolytic manganese dioxide, the anodically-deposited product is removed by cathodically polarizing the electrode, possibly assisted by impact or vibration. Typically, the current is reversed periodically when the deposit is about 100-1500.mu. thick and shortl |
| 4167607 |
Halogen electrodes and storage batteries |
September 11, 1979 |
| A composite halogen electrode for a rechargeable metal-halogen energy storage cell comprises a thin foraminous sheet, typically a valve metal with an electroconductive and electrocatalytic non-passivating coating, in electrical contact over substantially the entire electrode surface with |
| 4149956 |
Anode structure |
April 17, 1979 |
| Relates to anodes for electrolytic cells, for the electrolysis of brine solutions, having primary lead-in means of high conducting capacity (copper) for supplying anodic current to the cell from outside the cell and connected to a current supply source, primary conducting means of lo |
| 4146438 |
Sintered electrodes with electrocatalytic coating |
March 27, 1979 |
| Sintered electrodes for electrolytic processes comprising a self-sustaining body or matrix of sintered powders of an oxycompound of at least one metal selected from the group consisting of titanium, tantalum, zirconium, vanadium, niobium, hafnium, aluminum, silicon, tin, chromium, molybd |
| 4138295 |
Process and apparatus for downward recycling of the electrolyte in diaphragm cells |
February 6, 1979 |
| An alkali chlorine diaphragm cell such as is constructed in a conventional manner whereby evolved gaseous chlorine rises in the pool of alkali metal chloride solution is provided with recycling means to recycle the solution from an upper level of the solution to a predetermined lower lev |
| 4136235 |
Secondary batteries |
January 23, 1979 |
| Storage batteries having negative and positive electrodes in which oxidized lead and/or lead oxide paste for the positive electrodes is applied to a metal base selected from the group consisting of tungsten-rhenium alloys, tantalum and titanium-tantalum alloys and lead and/or oxidized le |
| 4134806 |
Metal anodes with reduced anodic surface and high current density and their use in electrowinnin |
January 16, 1979 |
| Describes an electrochemical process operated at relatively low cathodic current density and high anodic current density, particularly for electrowinning and electrorefining processes using dimensionally stable metal anodes with reduced anodic electrocatalytic surfaces to allow full |
| 4132620 |
Electrocatalytic electrodes |
January 2, 1979 |
| Novel electrodes for electrochemical reactions in an electrolytic medium, wherein the active surface layer of the electrode contains an electrocatalytically effective amount of germanium disulfide. The electrodes can be used in electrochemical cells as the catalytic substrates for ox |
| 4118306 |
Anode constructions for electrolysis cells |
October 3, 1978 |
| Provides an imperforate valve metal blanket between the cell base of a electrolysis cell and the cell can, which acts as a conductor from the positive current leads to dimensionally stable anodes and provides hollow anodes with perforate and imperforate sections to promote anolyte ci |
| 4118294 |
Novel cathode and bipolar electrode incorporating the same |
October 3, 1978 |
| A hydrogen evolution cathode for electrochemical reactions consists of a body formed of a powdered electrically conductive material embedded in a cured thermosetting resin and having a cathodically operative surface enriched with powder of a hydrogen evolution catalyst, the powdered |
| 4111765 |
Silicon carbide-valve metal borides-carbon electrodes |
September 5, 1978 |
| Novel sintered electrodes consisting essentially of 40 to 90% by weight of at least one valve metal boride, 5 to 40% by weight of silicon carbide and 5 to 40% by weight of carbon useful for electrolysis reactions, particularly electrolysis of halide ions to the corresponding halogen and |
| 4110180 |
Process for electrolysis of bromide containing electrolytes |
August 29, 1978 |
| In a method and apparatus for electrolyzing an aqueous bromide containing electrolyte to form bromine by passing an electrolysis current through said electrolyte between a cathode and an anode comprising at least a valve metal base which is exposed to the electrolyte over at least part o |
| 4098669 |
Novel yttrium oxide electrodes and their uses |
July 4, 1978 |
| Novel sintered electrodes comprised of a self-sustaining matrix of sintered powders of yttrium oxide and at least one electroconductive agent, the electrode being provided over at least a portion of its surface with at least electrocatalyst useful for electrolysis reaction and bipolar |
| 4088556 |
Monitoring moving particle electrodes |
May 9, 1978 |
| The operation of a moving particle electrode in an electrolytic cell is monitored by detecting vibration or displacement created by impingment of the solid moving particles against a solid surface producing a signal or alarm whenever the vibration or displacement decreases or otherwise |
| 4072586 |
Manganese dioxide electrodes |
February 7, 1978 |
| Novel electrodes consisting essentially of a valve metal base or other electrically conductive material which is corrosion-resistant to the anodic conditions having on at least a portion of its outer surface an electrocatalytic coating of .beta.-manganese dioxide chemi-deposited by t |
| 4072585 |
Valve metal electrode with valve metal oxide semi-conductive coating having a chlorine discharge |
February 7, 1978 |
| Describes chlorine resistant metal electrodes, preferably of valve metals such as titanium and tantalum, having coatings of mixed metal oxides, preferably valve metal oxides, which have been doped to provide semi-conducting surfaces on the electrodes, which coatings also have the cap |
| 4070504 |
Method of producing a valve metal electrode with valve metal oxide semi-conductor face and metho |
January 24, 1978 |
| Describes chlorine resistant metal electrodes, preferably of valve metals such as titanium and tantalum, having coatings of mixed metal oxides, preferably valve metal oxides and platinum group metal oxides, which have been doped to provide semi-conducting surfaces on the electrodes, whic |
| 4064021 |
Method of improving electrolyte circulation |
December 20, 1977 |
| Provides an imperforate valve metal blanket between the cell base of a diaphragm electrolysis cell and the cell can, which acts as a conductor from the positive current leads to dimensionally stable anodes and provides hollow anodes with perforate and imperforate sections to promote |
| 4056449 |
Electrowinning method |
November 1, 1977 |
| In the method of electrowinning metals from acid aqueous solutions of the metals, the improvement comprising maintaining the anode surface at a temperature not greater than 40.degree. C to avoid deposits of manganese cobalt and iron dioxides and to improve anode life. |
| 4052271 |
Method of making an electrode having a coating containing a platinum metal oxide thereon |
October 4, 1977 |
| A method of making an electrode for use in an electrolytic process. The electrode has a core of a film-forming metal and a layer having at least a part of the outside portion of the thickness thereof of an electrolyte resistant and electrolysis product resistant material, which material |
| 4040914 |
Cathode starting blanks for metal deposition |
August 9, 1977 |
| Improved cathode starting blanks for metal electrowinning are produced when valve metal sheets are coated with a thin layer containing either silver or silver-valve metal alloys, particularly silver-yttrium alloys, and/or oxides thereof. Said blanks are used in the electro-deposition of |
| 4037032 |
Electric storage battery with valve metal electrodes |
July 19, 1977 |
| Electric storage batteries with titanium or other film forming metal anodes and cathodes are provided. The anodes are coated with mixed oxide coatings of a film forming metal oxide containing a platinum group metal oxide catalyst, which coatings may contain oxides of other metals to alte |
| 4003817 |
Valve metal electrode with valve metal oxide semi-conductive coating having a chlorine discharge |
January 18, 1977 |
| Describes chlorine resistant metal electrodes, preferably of valve metals such as titanium and tantalum, having coatings of mixed metal oxides, preferably valve metal oxides, which have been doped to provide semi-conducting surfaces on the electrodes, which coatings also have the cap |
| 4000048 |
Novel cathode |
December 28, 1976 |
| A cathode for electrolysis reactions comprising an electrically conductive electrode base having an outer coating on at least a portion of its exterior of an alloy of palladium and either silver or lead, process for the preparation of said cathodes and a method of electrolysis using said |
