Various embodiments relate to several processes that may recover commodity chemicals from an alkaline metal-air battery. In various embodiments, while the cell is operating, various side products and waste streams may be collected and processed to regain use or additional value. Various embodiments also include processes to be performed after the cell has been disassembled, and each of its electrodes have been separated such as not to be an electrical hazard. The alkaline metal battery recycling processes described herein may provide multiple forms of commodity iron, high purity transition metal ores, fluoropolymer dispersions, various carbons, commodity chemicals, and catalyst dispersions.

Discloses a hydrometallurgical process and system for the recovery of precious metals; specifically palladium, rhodium, and platinum metals, at high purity and with limited waste and environmental fouling.

Discloses a hydrometallurgical process and system for the recovery of precious metals; specifically palladium, rhodium, and platinum metals, at high purity and with limited waste and environmental fouling.

The present disclosure relates to the field of non-ferrous metal and chemical industries for the production of metal sodium, and discloses a process for the preparation of high purity metallic sodium and the safe treatment of high calcium content sodium slag, the process comprises the following steps: (1) subjecting a liquid sodium obtained from electrolysis to a supergravity separation to obtain a high purity metallic sodium and a high calcium content sodium slag; (2) subjecting said high calcium content sodium slag to at least one roasting process to obtain a roasting slag; (3) leaching said roasting slag with an alkaline liquor to produce sodium hydroxide solution and calcium hydroxide. The process provided by the present disclosure not only greatly reduces the amount of generated sodium slag, but also implements the safe recovery of calcium and sodium resources from the sodium slag.

The present disclosure relates to the field of non-ferrous metal and chemical industries for the production of metal sodium, and discloses a process for the preparation of high purity metallic sodium and the safe treatment of high calcium content sodium slag, the process comprises the following steps: (1) subjecting a liquid sodium obtained from electrolysis to a supergravity separation to obtain a high purity metallic sodium and a high calcium content sodium slag; (2) subjecting said high calcium content sodium slag to at least one roasting process to obtain a roasting slag; (3) leaching said roasting slag with an alkaline liquor to produce sodium hydroxide solution and calcium hydroxide. The process provided by the present disclosure not only greatly reduces the amount of generated sodium slag, but also implements the safe recovery of calcium and sodium resources from the sodium slag.

The alunite ore processing method consists of crushing, grinding and flotation of raw alunite ore. The enriched alunite ore is roasted at 520 to 620° C., the roasting time is 1 to 3 hours. The roasted alunite is leached with 5 to 20% sodium carbonate solution, which is in 100 to 110% of the stoichiometric amount required to bond the SO.sub.3 aluminum sulfate in the alunite with leaching conditions of 70-100° C. for 0.5-2.0 hours. The obtained slurry contains all of the potassium sulfate from the alunite and all of the sodium sulfate obtained from sodium carbonate. In the insoluble residue remains all aluminium oxide and residual rock. The sulfate solution is separated from the insoluble residue and is converted with potassium chloride to potassium sulphate (fertilizer) and kitchen salt. The insoluble residue is treated by the Bayer method without the use of an autoclave and results in aluminium oxide (alumina) and quartz sand.

The alunite ore processing method consists of crushing, grinding and flotation of raw alunite ore. The enriched alunite ore is roasted at 520 to 620° C., the roasting time is 1 to 3 hours. The roasted alunite is leached with 5 to 20% sodium carbonate solution, which is in 100 to 110% of the stoichiometric amount required to bond the SO.sub.3 aluminum sulfate in the alunite with leaching conditions of 70-100° C. for 0.5-2.0 hours. The obtained slurry contains all of the potassium sulfate from the alunite and all of the sodium sulfate obtained from sodium carbonate. In the insoluble residue remains all aluminium oxide and residual rock. The sulfate solution is separated from the insoluble residue and is converted with potassium chloride to potassium sulphate (fertilizer) and kitchen salt. The insoluble residue is treated by the Bayer method without the use of an autoclave and results in aluminium oxide (alumina) and quartz sand.

An exemplary embodiment of the present disclosure provides a method to extract components from a metal-containing material, forming a first multicomponent system comprising an ionic liquid and a first aqueous component, wherein the first aqueous component and the ionic liquid form an immiscible mixture when the first multicomponent system is at a temperature below a critical temperature, contacting a metal-containing material with the first multicomponent system, adjusting the temperature of the first multicomponent system above the first critical temperature to form a miscible mixture with the ionic liquid and the first aqueous component, reverting the temperature of the first multicomponent system below the critical temperature to form an immiscible mixture with the ionic liquid and the first aqueous component, and isolating the ionic liquid from the first aqueous component and the metal-containing material, wherein the ionic liquid comprises one or more metals from the metal-containing material.

Disclosed are a method of manufacturing a uranium target, the method including (a) a step of preparing a conjugate including a matrix and a uranium target green compact formed in the matrix; and (b) a step of performing thermo-mechanical treatment through additional heat treatment at 530° C. to 600° C. during a hot rolling pass in a process of hot-rolling the conjugate, and a method of extracting radioactive Mo-99 using the uranium target.

A process for treating a material to remove sulphates or other impurities therefrom comprises a) subjecting the material to a leaching step to selectively dissolve sulphate-containing material or dissolve other impurities from the material and/or to passivate gypsum, b) separating a leach solution generated in step (a) from solids, and c) treating the solids from step (b). The solids from step (b) may be leached to dissolve Si and/or Al and the pregnant leach solution can be treated to precipitate zeolites. The process can be used to make zeolites from feed materials, including leached spodumene residue. Step (a) is a pre-wash/pre-leach step that removes impurities that could otherwise interfere with the zeolite precipitation step or require further processing of the pregnant leach liquor.