Patent classifications
C25C7/007
Method for simultaneously recovering cobalt and manganese from lithium based battery
The present invention relates to a method of simultaneously recovering cobalt (Co) and manganese (Mn) from lithium-based BATTERY, and more particularly, to a method that is capable of simultaneously recovering cobalt and manganese from lithium-based BATTERY, i.e., recycled resources that contain large amounts of cobalt and manganese, with high purities using multistage leaching and electrowinning methods. According to the method of the present invention, cobalt and manganese can be simultaneously recovered from lithium-based BATTERY as recycled resources, and a recovery method that is cost-effective compared to conventional methods can be provided.
Closed Loop Systems and Methods for Recycling Lead Acid Batteries
A closed loop electrochemical process of recovery of high-purity lead uses continuous formation of adherent lead on a cathode from an electrolyte that is used to dissolve desulfated lead paste. Preferred cathodes include aluminum containing cathodes that are operated in methane sulfonic acid to produce a micro- or nanoporous mixed matrix metallic composition and lead dioxide formation at the anode is avoided using appropriate anode configurations or operating conditions
Consumable anode and anode assembly for electrolytic reduction of metal oxides
An anode assembly is provided having a pair of channels; anodes in slidable communication with the channels; conduit to direct carrier gas to the anode; and conduit to remove reaction gas from the anode. Also provided is a method for continuously feeding anodes into a electrolytic bath, the method having the steps of stacking the anodes such that all of the anodes reside in the same plane and wherein the stack includes a bottom anode; contacting the bottom anode with the electrolytic bath for a time and at a current sufficient to cause the bottom anode to be consumed during an electrolytic process; using gravity to replace the bottom anode with other anodes defining the stack.
PROCESS FOR THE PRODUCTION OF LITHIUM METAL OR AN ALLOY THEREOF OR FOR THE PRE-LITHIATION OF AN ELECTRODE MATERIAL
A relithiated Li intercalation material for producing Li metal or an alloy thereof or for pre-lithiating an electrode material as well as an anode and an electrolysis cell comprising same are provided. A method of producing Li metal or an alloy thereof or for pre-lithiating an electrode material is also provided. This method comprises carrying out a Li production electrolysis reaction in the electrolysis cell, wherein the electrolysis cell comprises the relithiated Li intercalation material as an anode, a current collector as a cathode, and an electrolyte comprising a lithium salt.
Method and apparatus for electrochemical reduction of a solid feedstock
The method, apparatus and product relate to the electrochemical reduction of a solid feedstock (20) to produce a product. A container (2) is filled with a fused salt (6), and one or more anodes (14) contact the fused salt. A cathode (18) is loaded with feedstock and engages with a transport apparatus (22, 36, 40) which locates and moves the cathode past the anodes(s), while the cathode and the feedstock contact the fused salt. As the cathode moves past the anodes(s), a voltage applied between the cathode and the anode(s) electrochemically reduces the solid feedstock to form the product.
Hydrometallurgical electrowinning of lead from spent lead-acid batteries
The present disclosure relates generally to recycling lead-acid batteries, and more specifically, relates to purifying and recycling the lead content from lead-acid batteries. A method includes reacting a lead-bearing material with a first carboxylate source to generate a first lead carboxylate. The method includes reacting the first lead carboxylate with a second carboxylate source to generate a second lead carboxylate. The method further includes applying an electrical bias to an aqueous solution of the second lead carboxylate to generate metallic lead.
TITANIUM MASTER ALLOY FOR TITANIUM-ALUMINUM BASED ALLOYS
A process is disclosed for the electro-refinement of titanium aluminides to produce titanium-aluminum master alloys which process is effective even in the presence of substantial amounts of aluminum and in the presence of ten (10) or more weight percent oxygen in the material(s) to be refined. The process is likewise effective without the addition of titanium chlorides or other forms of soluble titanium to the electrolyte bath comprising halide salts of alkali metals or alkali-earth metals or a combination thereof.
Devices and Method for Smelterless Recycling of Lead Acid Batteries
Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining, and spent electroprocessing solvent can be recycled to the recovery process.
Aquatic metal ion harvesting device and system
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.
Improved Devices and Method for Smelterless Recycling of Lead Acid Batteries
Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining. Spent electroprocessing solvent and/or base utilized to treat lead paste from the lead acid battery scrap can be recycled to the recovery process.