A green resource-based method of thermal mass synergy in waste Integrated circuit board mainly includes carbonization cracking system, crushing and separation system, gasification cracking system and heat value utilization and comprehensive recovery system. Compared with existing techniques, carbonization cracking system can realize the dry distillation cracking of organic matter in waste integrated circuit board which converts carbon, hydrogen and other elements into fuel carbonized cracking gas and cracking oil, the heat from the combustion of the carbonization cracking gas of the invention provides the energy needed for the carbonization cracking to realize self-heating carbonization cracking. Carbonization cracking products are cracked and separated to solve the problems such as hard to break and organic coating metal caused by direct crushing and separation of traditional circuit boards which Improves crushing and separation effect; gasification cracking system achieves the comprehensive utilization of carbon, the gasified cracking gas can be used as a heat source for subsequent valuable metal recovery to further improve the utilization rate of calorific value. The invention has the characteristics of: high heat value utilization rate, low energy consumption, high metal recovery rate, short process recovery of valuable metal and no pollution of flue gas.

Certain method embodiments are described and useful for recycling permanent magnet materials (e.g. permanent magnet alloys) and battery materials (e.g. battery electrode materials) to extract critical and/or valuable elements including REEs, Co and Ni. Method embodiments involve reacting such material with at least one of an ammonium salt and an iron (III) salt to achieve at least one of a liquid phase chemical reaction and a mechanochemical reaction.

A reactor system has a number of stations arranged to recover mineral particles in a slurry. The system includes a hopper to receive the slurry and barren media having hydrophobic coating to attract the mineral particles. The hopper provides a mixture of barren media and slurry to a tumbler arranged to stir the mixture in order to increase the contact between the slurry and the barren media so as to allow the mineral particles to attach to the barren media to form mineral laden media. The mineral laden media are conveyed to a rinsing station where water jets are used to wash the gangue materials off the mineral laden media. The rinsed mineral laden media are mixed with a surfactant so that the mineral particles are released from the mineral laden media. High-pressure water and air jets are then used to remove remaining surfactant from the released media.

A reactor system has a number of stations arranged to recover mineral particles in a slurry. The system includes a hopper to receive the slurry and barren media having hydrophobic coating to attract the mineral particles. The hopper provides a mixture of barren media and slurry to a tumbler arranged to stir the mixture in order to increase the contact between the slurry and the barren media so as to allow the mineral particles to attach to the barren media to form mineral laden media. The mineral laden media are conveyed to a rinsing station where water jets are used to wash the gangue materials off the mineral laden media. The rinsed mineral laden media are mixed with a surfactant so that the mineral particles are released from the mineral laden media. High-pressure water and air jets are then used to remove remaining surfactant from the released media.

Plant for disposing and recovering lithium batteries, including: storage; supply; crushing, submerged in liquid solution and in overpressure of inert gas, for destroying the batteries through cutting discs and milling cutters; torch for burning the gaseous residue and possible organic solvents; centrifugation and screening of the scrap; evaporation, for removing the volatile solvents and concentrating the lithium in solution; recovery of the heavy metals, with chemical/physical reactor which, by way of a filter press, distributes the products between a liquids tank and a solids tank; recovery of lithium wherein the lithium is recovered through the crystallisation of lithium carbonate by adding sodium carbonate and heating, contained in a tank and heating the solution in a special heated tank, in a chemical/physical reactor.

A method for the recovery of metals from a feed stream containing one or more value metals and lithium, the method comprising: subjecting the feed stream to a sulphuric acid leach to form a slurry comprising a pregnant leach solution of soluble metal salts and a solid residue; separating the pregnant leach solution and the solid residue; subjecting the pregnant leach solution to one or more separate solvent extraction steps, wherein each solvent extraction step recovers one or more value metals from the pregnant leach solution, the remaining pregnant leach solution comprising lithium; and recovery of lithium from the pregnant leach solution.

Disclosed is a system and method for sorting copper-bearing ore to select portions having a target copper content. The system includes an analysis and selection station including first magnetic resonance analyzer measuring the copper content of input ore and a controlled diverter to divert portions of the input ore to a collection path when the copper content meets or exceeds a predetermined cut-off value. The predetermined cut-off is adjusted by a controller in response to the first magnetic resonance analyzer. A second magnetic resonance analyzer measures the copper content of the ore in a product path. That measurement is fed back to the controller to fine tune the adjusted cut-off value above, up or down, to optimize the yield of ore having the targeted copper content. The system may include a station for sizing the input ore, a station for sizing the output ore, and a station for sizing waste produced by the system.

The present invention provides a method for preparing ferrovanadium alloys based on aluminothermic self-propagating gradient reduction and slag washing refining. The method includes the steps of (1) performing aluminothermic self-propagating gradient reduction; (2) performing heat preserving and smelting to obtain an upper layer alumina-based slag and a lower layer alloy melt; (3) jetting refining slags into the lower layer alloy melt, and performing stirring and slag washing refining; and (4) cooling the refined high-temperature melt to room temperature, and removing an upper layer smelting slag to obtain the ferrovanadium alloys.

The present disclosure broadly relates to a process for recovering magnesium as magnesium oxide and fibrous amorphous silica from serpentinite feedstocks. More specifically, but not exclusively, the present disclosure relates to metallurgical and chemical processes for recovering magnesium oxide and fibrous amorphous silica from serpentinite feedstocks. The process broadly comprises applying a sufficient amount of shear deformation force to the serpentine feedstocks to produce a particulate material of reduced size; subjecting the particulate material to magnetic separation to produce a primary magnetic separation product and iron-reduced tailings; and digesting the iron-reduced tailings into nitric acid, producing a magnesium-rich pregnant solution and insoluble solids. The process further comprises adjusting the pH of the pregnant solution to values ranging from about 5.0 to about 7.0.

A method for recovering metals from waste in which material is screened to leave a nonfibrous feedstock, the nonfeedstock is comminuted with a mill (e.g., a ball mill or rod) to liberate, flatten and separate the nonfibrous feedstock to obtain a mix of a metal fraction and residue, and the metal fraction and the residue are collected. There is a system employing the same to treat such materials.