Cathode material from exhausted lithium ion batteries are dissolved in a solution for extracting the useful elements Co (cobalt), Ni (nickel), Al (Aluminum) and Mn (manganese) to produce active cathode materials for new batteries. The solution includes compounds of desirable materials such as cobalt, nickel, aluminum and manganese dissolved as compounds from the exhausted cathode material of spent cells. Depending on a desired proportion, or ratio, of the desired materials, raw materials are added to the solution to achieve the desired ratio of the commingled compounds for the recycled cathode material for new cells. The desired materials precipitate out of solution without extensive heating or separation of the desired materials into individual compounds or elements. The resulting active cathode material has the predetermined ratio for use in new cells, and avoids high heat typically required to separate the useful elements because the desired materials remain commingled in solution.

A method of removing aluminum from a waste electrode. The method includes comminuting the waste electrode containing a waste current collector and an electrode active material. The method further includes screening the comminuted waste electrode to collect the electrode active material. The method further includes mixing the electrode active material and an alkaline solution to remove aluminum impurities in the electrode active material.

The invention discloses a method for co-processing cracking slag and smelting soot of the waste circuit board, belongs to the field of comprehensive recycling of valuable elements from typical soot of waste circuit boards, and particularly relates to a method for co-processing cracking slag and smelting soot of the waste circuit board for debromination and comprehensive recovery of copper and zinc. The method mainly comprises the following steps of: crushing and sorting, mixture roasting, reinforced leaching, replacement and silver precipitation, sulfuration and copper precipitation, and evaporation crystallization. Compared with a traditional recycling technology, the purpose that two kinds of solid waste are treated in a coupling mode through one recycling technology is achieved. Through mixed sulfuric acid roasting, the requirement of bromide synergistic removal of the waste circuit board cracking slag and smelting soot is met, and the purpose of selective conversion of copper and zinc is achieved.

A multi-chamber melting furnace for melting scrap of non-ferrous metals, in particular aluminum scrap, including a first shaft furnace with a shaft for charge material, in which impurities of the charge material can be removed, and at least one furnace chamber which is connected to the shaft of the first shaft furnace and has a first heat supply device, wherein at least one second shaft furnace with a shaft for charge material, in which shaft impurities of the charge material can be removed, the furnace chamber being connected to the shaft of the second shaft furnace and being arranged between the shafts in such a manner that the furnace chamber forms a main melting chamber in which the molten bath is located during operation.

A process for the recovery of one or more transition metals and lithium from waste lithium ion batteries or parts thereof is disclosed. The process comprising the steps of (a) providing a particulate material containing a transition metal compound and/or transition metal, wherein the transition metal is selected from the group consisting of Ni and Co, and wherein further at least a fraction of said Ni and/or Co, if present, are in an oxidation state lower than +2, e.g. in the metallic state; which particulate material further contains a lithium salt; (b) treating the material provided in step (a) with a polar solvent and optionally an alkaline earth hydroxide; (c) separating the solids from the liquid, optionally followed by a solid-solid separation step; and (d) treating the solids containing the transition metal in a smelting furnace to obtain a metal melt containing Ni and/or Co provides good separation of transition metal as alloy and of lithium in high purity.

A method of recovering an active metal of a lithium secondary battery according to an embodiment of the present invention includes preparing a waste cathode active material mixture obtained from a waste cathode of a lithium secondary battery, forming a preliminary precursor mixture by reacting the waste cathode active material mixture with a reactive gas in a fluidized bed reactor, and selectively recovering a lithium precursor from the preliminary precursor mixture. The fluidized bed reactor includes a reactor body and a horizontal expansion bed, and a ratio of a diameter of the horizontal expansion bed relative to a diameter of the reactor body is 3 or more to improve a recovery efficiency of a lithium secondary battery.

A method for recycling a scrap material includes providing a sample having one or more components having a respective melting temperature, and heating the sample to a first melting point corresponding to a first component to form a molten first component, and separating the molten first component from the sample. A system for recycling scrap materials includes a housing component for a sample containing one or more components to be heated, and subsequently melted and separated. The system may include a microwave plasma source, and at least one collection mechanism corresponding to each separated molten component.

Proposed is a separation method of black powder of an automotive waste secondary battery. More particularly, a method of separating a black powder (Ni, Co, Mn, Li C)+metal (Cu, Al) compound extracted from an automotive waste secondary battery through magnetic separation and particle separation is proposed. The separation method of black powder of an automotive waste secondary battery according to an embodiment of the present disclosure includes: (a) extracting black powder+metal compound from a waste secondary battery; (b) separating the black powder+metal compound into black powder and a metal compound through particle separation; and (c) separating Co and Ni, and non-extracted Mn, Li, and C by extracting Co and Ni from the black powder through gravity separation.

The invention relates to hydrometallurgical method for recovering lithium and one or more transition metals from spent lithium ion batteries, comprising: treating an electrode material of the batteries in an alkaline solution to dissolve lithium in said solution; separating from the alkaline solution a solid phase consisting of lithium-depleted electrode material; recovering lithium from said alkaline solution; leaching the lithium-depleted electrode material with an acid leach solution to dissolve one or more transition metals of the electrode material in the leach solution; separating insoluble material, if present, from the leach solution to obtain metal-bearing aqueous solution and isolating one or more transition metal(s) and optionally the remainder of the lithium from said metal-bearing aqueous solution.

Provided is a sorting method for valuable resources, including a thermal treatment step of thermally treating a target containing valuable resources, to melt aluminum and separate a melt, a pulverizing step of pulverizing a thermally treated product remaining after the melt is separated, to obtain a pulverized product, a magnetic sorting step of sorting the valuable resources from the pulverized product by a magnetic force, and a wind force sorting step of sorting one valuable resource from another valuable resource in the valuable resources by a wind force.