Matches 1 - 50 out of 55 1 2 >
Match Document Document Title
7601247 Falling bed cathode cell for metal electrowinning  
A cell ( 100 ) for metal electrowinning from metal ion solutions is described, wherein the cathode ( 1 ) consists of a falling bed of growing beads; the beads, withdrawn from the lower part of the...
7494579 Spouted bed electrode cell for metal electrowinning  
It is herein described an electrowinning cell with a spouted bed electrode of growing metallic beads, separated by a semi-permeable diaphragm and suitable for being assembled in a stack in a...
7347920 Production, refining and recycling of lightweight and reactive metals in ionic liquids  
Lightweight and reactive metals can be produced from ore, refined from alloy, and recycled from metal matrix composites using electrolysis in electrolytes including an ionic liquid containing a...
6764588 Method of and system for flushing one or more cells in a particle-based electrochemical power source in standby mode  
A method of and system for flushing one or more cells or components thereof in a particle-based electrochemical power source is provided. Reaction solution is delivered to and withdrawn from the...
5695629 Fluidized bed electrowinning of copper  
A fluidized bed electrowinning system and method includes a fluidized bed reaction vessel in which a fluidized bed of conductive particles serves as the cathode for the electrowinning reaction, the...
5643437 Co-generation of ammonium persulfate anodically and alkaline hydrogen peroxide cathodically with cathode products ratio control  
An electrolytic cell and process for the cogeneration of a peroxy acid and salts thereof in an anolyte compartment of the cell and hydrogen peroxide at a desired ratio of an alkali metal hydroxide...
5514263 Process for the recovery of metallic lead from battery paste  
A process for the direct recovery of metallic lead from battery paste in an electrolysis unit is disclosed. The electrolysis unit consists of an anode compartment and a cathode compartment...
5348629 Method and apparatus for electrolytic processing of materials  
A method and apparatus for the electrochemical processing of materials in which the material to be processed is located within an electrolyte that is subjected to strong local electromagnetic...
5158656 Method and apparatus for the electrolytic preparation of group IV and V hydrides  
An electrochemical apparatus and method for supplying volatile hydrides of sufficient purity, at the proper pressure, and in the required volume, for direct introduction into a chemical vapor...
5084147 Process of synthesis of organic substances by an indirect electrochemical route with a redox system in the solid state  
A process of oxidation or reduction of organic substrates by an indirect electrochemical route is described. During oxidation, the electrochemical stage produces a metallic oxide having higher...
4981563 Electrolysis cell and method of producing chlorine  
A membrane electrolysis cell, particularly suited for producing chlorine, caustic soda and hydrogen by the electrolysis of brine, has its cathode formed by a static bed of a packing material...
4950366 Method of production of D-arabinose  
A method has been developed of the production of D-arabinose as a base material in the production of vitamin B2. the substance of the method rests in that the solution of a salt of D-gluconic acid...
4913779 Process and installation for electrolysis by percolation across one or several porous volumic electrodes  
The invention relates to a process and an apparatus for electrolysis by percolation through at least one porous volumic electrode, for carrying out an electrochemical reaction. The process is of...
4824531 Electrolysis method and packed cathode bed for electrowinning metals from fused salts  
Described is a cell for the electrowinning of metals from fused salt baths, especially aluminum from cryolite-alumina, featuring a packed cathode bed of loose refractory materials resistant to the...
4775452 Process for dissolution and recovery of noble metals  
Disclosed herein is a process for dissolving and recovering noble metals form used catalysts. Noble metal components are leached out from particles supporting or containing at least one noble metal...
4569729 Electrolyzing method and electrolytic cell employing fluidized bed  
In an electrolytic cell of the type which includes a cylindrical electrolytic cell main body divided into a main electrode chamber and an auxiliary electrode chamber by a diaphragm, and having main...
RE32077 Electrolytic cell with membrane and method of operation  
Describes electrolytic cell with dimensionally stable anodes, non-porous ion-selective membranes separating said anodes from the cathode compartment, and a porous, static bed of loose, conducting...
4511441 Method of operating a liquid-gas electrochemical cell  
The invention includes in its scope a method for electrochemically reacting a liquid with a gas in an electrochemical cell of the type having at least two electrodes separated by a liquid permeable...
4409073 Process for the electrolytic reduction of metals and an improved particulate carbon electrode for the same  
One aspect of the present invention concerns an improved process for the electrolytic reduction of a metal from a metal compound and comprises the steps of providing a carbon cathode within a...
4377455 V-Shaped sandwich-type cell with reticulate electodes  
An electrolytic cell for the electrolysis of aqueous solutions to produce gaseous products is comprised of a housing, a separator traversing said housing to form an anode compartment and a cathode...
4285785 Metal producing method  
In the production of metal by electrolysis of a metal compound dissolved in a molten solvent, the electrolysis is carried out with a bed of conductive pebbles.
4272333 Moving bed electrolysis  
A method of moving bed electrolysis, in which a packed bed comprising (at least superficially) conductive particles moves as a packed bed in electrolyte between two electrodes and in electronic...
4257855 Apparatus and methods for the electrolytic production of aluminum metal  
An electrolytic cell for the production of aluminum metal comprises a permanent hollow anode structure of substantially corrosion-resistant material, with numerous perforations in the base of said...
4256557 Copper electrowinning and Cr.sup.+6 reduction in spent etchants using porous fixed bed coke electrodes  
Exhausted Cr +6 oxidizing solutions containing Cu +2 values are electrolyzed by placing an exhausted Cr +6 etching or oxidizing solution containing copper ion and Cr +3 ions in an electrolytic...
4244795 Process and apparatus for electrolytically removing metal ions from a solution thereof  
A process and apparatus are provided for electrolytically removing metal ions from a solution thereof with an electrochemical cell having cathode and anode compartments. In accordance with the...
4244793 Brine electrolysis using fixed bed oxygen depolarized cathode chlor-alkali cell  
Disclosed is a method of electrolyzing alkali metal chloride brine between an anode and a cathode, with oxidant feed to the cathode, where the cathode is a bed of porous particles having HO 2 31 ...
4243498 Nickel electrowinning using reduced nickel oxide as a fluidized cathode  
A fluid bed electrolysis process is provided for the recovery of nickel from nickel-containing solution, e.g., leach solution, in which a fluid bed of substantially pure nickel particles or pellets...
4240886 Electrowinning using fluidized bed apparatus  
A fluid bed electrolysis system and process are provided for efficiently removing electroplatable metal ions from an electrolyte, the system utilizing a cell having an axially disposed anode...
4239607 Electrochemical chlorine production process  
A process is provided for producing halogen gas from gaseous or aqueous halogen acid, wherein the halogen is mixed with a slurry of electrocatalytically active particles and pumped into an...
4226685 Electrolytic treatment of plating wastes  
The known method of removing heavy metal and cyanide ions from plating waste solutions wherein the solution is passed through flow-through, high surface area electrodes to precipitate heavy metal...
4206020 Electrochemical process using a fluidized electrode  
An extended surface area electrode for an electrochemical cell is provided by causing a bed of conducting particles to be expanded in the form of a fluidized bed by controlled upward flow of...
4183792 Method and cell for electrolytic oxidation of Ni(OH).sub.2 with stationary bed electrode  
A method and cell are provided for anodically oxidizing a metal hydroxide slurry from a state of lower valence to a state of higher valence, the cell comprising an anode in the form of a bed of...
4171249 Improvements in or relating to circulating bed electrodes  
An electrochemical cell is disclosed which includes a particulate electrode and a current conductor for feeding current to the particles of the particulate electrode, and means for flowing a fluid...
4141804 Process for electrowinning metal from metal bearing solutions  
A process and an apparatus for electrowinning metal from metal bearing solutions is disclosed. A support solution containing a predetermined metal concentration is continuously recirculated through...
4124453 Electrochemical processes  
A method of carrying out an electrochemical reaction comprises setting up a fluidized bed of particles at least some of which have at least their surfaces conducting or semi-conducting, using...
4118292 Packed bed electrorefining and electrolysis  
A molten metal, such as aluminium, is refined by passing a stream thereof into an anode comprising a bed of conductive particles, such as carbon, in a molten or conductive-solution salt. A...
4073707 Method of operating a circulating bed cell  
The invention discloses a method of controlling the size distribution of electroconductive particles constituting a particulate electrode in an electrochemical cell. Particles are extracted from...
4073702 Electrochemical cells  
The invention relates to electrochemical cells whereof one electrode is of a particulate type which may comprise a fluidized bed electrode, a packed bed electrode or a circulating bed electrode, an...
4039402 Method for the operation of a fluidized bed electrochemical reactor at a substantially constant current density  
A method for the operation of a fluidized bed electrochemical reactor at a substantially constant current density for a prolonged period of time is disclosed. The method consists of electrowinning...
4035278 Electrolytic cells  
A process for the electrodeposition of metal onto the particles of a fluidised bed cathode is of particular use in the electro-winning of metals. Agglomeration of particles is substantially avoided...
4032415 Method for promoting reduction oxidation of electrolytically produced gas  
Gaseous products which tend to form at the anode or cathode of an electrolytic or electrochemical system in which the electrolyte is an aqueous medium may be converted into a reduction-oxidation...
4019968 Electrochemical cell  
There is disclosed an electrochemical apparatus including two or more electrochemical cells arranged in series. Each of the cells has at least one particulate electrode and is separated from its...
4014766 Electrolytic treatment of waste water  
Waste water is subjected to electrolysis in an electrolytic cell having an anode comprising an insoluble central electrode and a body of particulate iron pieces disposed therearound and in...
3988221 Electrolytic removal of heavy metal ions using particulate silicon alloys  
A cathodic bed of essentially inert, low cost silicon metal alloys in particulate form is used for the removal of ionic impurities from aqueous solutions by electrolytic deposition. The alloys used...
3974049 Electrochemical process  
There is disclosed an electrochemical process wherein an electrolyte is passed through one electrode compartment of an electrochemical cell, said one electrode compartment comprising a particulate...
3969201 Electrolytic production of alkaline peroxide solutions  
A novel electrolytic cell and process are described for producing alkaline peroxide solutions. The cell has an anode and cathode in spaced apart relationship, with the cathode being in the form of...
3941669 Fluidized bed electrode system  
A fluidized bed electrode system comprises an electrode chamber having a porous base, a main electrode consisting of a bed of fine solid particles contained in such chamber and selected from the...
3930968 Process for the manufacture of phenylhydrazine  
A process for the manufacture of phenylhydrazine by cathodic reduction of diazoaminobenzene dissolved in an electrolyte on solid electrodes with separation of cathode and anode spaces by a...
3892639 Extraction of metal values from lateritic ores  
There is disclosed a method for the extraction of metal values from laterite ores including nickel, chromium, manganese, iron and cobalt by a series of steps including chlorinating the ore in a...
3787293 METHOD FOR HYDROELECTROMETALLURGY  
A hydroelectrometallurgy method comprising suspending particles of a crude metal or metal sulfide in the anode zone and seed particles of pure metal in the cathode zone, causing such particles to...
Matches 1 - 50 out of 55 1 2 >