The invention relates to a method for electrowinning a metal from an electrolyte in an electrowinning cell that comprises an electrolysis tank, one or more anodes, and one or more cathodes, which anodes and cathodes are housed in the electrolysis tank. The method comprises supplying sulfur dioxide to the anode to depolarize the anode process and to reduce the energy consumption of the electrowinning cell.

The present disclosure relates to an electrolytic cell for the production of aluminium by reducing alumina. The cell may comprise a sidewall including at least one side block. The side block may comprise an aluminous material having an apparent porosity of less than about 10% and a composition, as a weight percentage on the basis of the aluminous material and for a total of about 100%, such that: Al2O3>about 50%, beta-alumina being less than about 20% of the weight of the aluminous material, oxides that are less reducible than alumina at 1000 C.<about 50%, Na2O<about 3.9%, and other components<about 5%.

An electrolytic cells for refining metals, and more particularly components, assemblies and methods making use of conductive elements configured to enhance distribution of electrical current.

An electrolytic cells for refining metals, and more particularly components, assemblies and methods making use of conductive elements configured to enhance distribution of electrical current.

The present invention is a device and system for recovering metal ions from bodies of water. The device comprises two electrode cylinders, a keel, at least two connectors, a buoyant housing and a power supply. The first electrode cylinder comprises a top, a bottom, an exterior surface, a longitudinal axis and a means for connecting to a power supply. The second electrode cylinder is affixed within the first electrode cylinder by a bracket and has a means for connecting to a power supply. The keel is affixed to the bottom of the exterior surface along the longitudinal axis of the first electrode cylinder. There are least two connectors affixed to the top along the longitudinal axis of the first electrode cylinder.

The present invention is a device and system for recovering metal ions from bodies of water. The device comprises two electrode cylinders, a keel, at least two connectors, a buoyant housing and a power supply. The first electrode cylinder comprises a top, a bottom, an exterior surface, a longitudinal axis and a means for connecting to a power supply. The second electrode cylinder is affixed within the first electrode cylinder by a bracket and has a means for connecting to a power supply. The keel is affixed to the bottom of the exterior surface along the longitudinal axis of the first electrode cylinder. There are least two connectors affixed to the top along the longitudinal axis of the first electrode cylinder.

A method for the manufacture of insoluble lead anodes, with low segregation of the constituent elements of the anodic alloy for the electrowinning of metals, free of buckling, used in electrolytic processes, which comprises: Obtaining a continuous plate (4) of lead or lead alloy 10 to 30 mm thick by 900 to 1,100 mm wide by means of a continuous casting process; Cut the continuous plate (4) according to a determined length obtaining a pre-plate (6) that will give the length of one or more plates of the anode (8); Roll the lead or lead alloy pre-plate (6) using a cold rolling mill (7) to a thickness of 6 to 12 mm, keeping the cold rolling temperature of the pre-plate under 60 C., obtaining the anode plate(s) (8); Remove the anode plate (8) from the rolling mill (7); Weld (12) a copper bar (10) to the upper end of the anode plate (11).

A method for the manufacture of insoluble lead anodes, with low segregation of the constituent elements of the anodic alloy for the electrowinning of metals, free of buckling, used in electrolytic processes, which comprises: Obtaining a continuous plate (4) of lead or lead alloy 10 to 30 mm thick by 900 to 1,100 mm wide by means of a continuous casting process; Cut the continuous plate (4) according to a determined length obtaining a pre-plate (6) that will give the length of one or more plates of the anode (8); Roll the lead or lead alloy pre-plate (6) using a cold rolling mill (7) to a thickness of 6 to 12 mm, keeping the cold rolling temperature of the pre-plate under 60 C., obtaining the anode plate(s) (8); Remove the anode plate (8) from the rolling mill (7); Weld (12) a copper bar (10) to the upper end of the anode plate (11).

Methods and apparatus for integrated alkali metal extraction are disclosed. Various exchange media are used to separate a chosen alkali metal, usually lithium, from a source stream and render the alkali metal into a product. In some cases, absorption/desorption processes, using solid and/or liquid absorption media, are used to purify a brine stream into a concentrate stream having elevated concentration of the desired alkali metal. Various processes, which may include use of liquid absorbents, electrochemical processing, centrifugation, evaporation, electrical mixing and separation, or combinations thereof, are used to separate the chosen metal from the source, and aqueous streams are recycled among the processes to facilitate the various separations.

A wind energy system with a wind turbine having a cowling surrounded by a diffuser, a plurality of inner rotor blades located inside of the cowling that rotate about an inner rotor hub, a plurality of outer rotor blades positioned between the diffuser and the cowling that rotate in an opposite direction to that of the plurality of inner rotor blades, a drive mechanism located within the inner rotor hub, a dynamic telescopic tower with a height that adjusts automatically by motors controlled by a controller based on input from sensors located in the dynamic telescopic tower and on the wind turbine, and a tower support that connects the wind turbine to the dynamic telescopic tower.