A metal recovery apparatus including a leaching unit that directly leaches a metal element contained in a composition into a hydrophobic deep eutectic solvent and a recovery unit that separates and recovers the metal element from the deep eutectic solvent, wherein the metal element-containing composition is solid at 25? C. and does not contain an inorganic acid, the metal element is a metal, a metal compound, or metal ions, and the deep eutectic solvent does not contain an inorganic acid.

Disclosed herein are compositions, methods, and systems for supramolecular gold stripping where the composition comprises a surface-bound, linear gold anion and a solution comprising a molecular receptor that facilitates the transfer of the linear gold anion from the surface to the solution.

A method for purifying lutetium includes providing a solid composition comprising ytterbium and lutetium and subliming or distilling ytterbium from the solid composition at a temperature of about 1196 C. to about 3000 C. to leave a lutetium composition comprising a higher weight percentage of lutetium than was present in the solid composition.

Disclosed are a method for processing and recycling an ultrathin lithium foil and a product, which belongs to the field of lithium-ion batteries. According to the disclosure, a liquid-phase thinning agent is adopted to perform a contact reaction with a lithium metal, the fabricated ultrathin lithium foil has a thickness of 20 m or less, the surface is flat, the thickness can be randomly regulated, and the uniformity is good. The method of the disclosure can also recycle a lithium-containing byproduct generated in the preparation process. When the ultrathin metal lithium foil prepared by the disclosure is used as a metal lithium negative electrode of a lithium battery, the energy density of the battery can be improved, and the battery manufacturing cost is reduced. The ultrathin metal lithium foil can also be used to supplement lithium for other types of electrode materials, thereby a broad application prospect is achieved.

A mineral recovery solution may include a liquid or supercritical carbon dioxide component. The mineral recovery solution may include a water component. The mineral recovery solution may include a chelator component.

Disclosed are a method for processing and recycling an ultrathin lithium foil and a product, which belongs to the field of lithium-ion batteries. According to the disclosure, a liquid-phase thinning agent is adopted to perform a contact reaction with a lithium metal, the fabricated ultrathin lithium foil has a thickness of 20 m or less, the surface is flat, the thickness can be randomly regulated, and the uniformity is good. The method of the disclosure can also recycle a lithium-containing byproduct generated in the preparation process. When the ultrathin metal lithium foil prepared by the disclosure is used as a metal lithium negative electrode of a lithium battery, the energy density of the battery can be improved, and the battery manufacturing cost is reduced. The ultrathin metal lithium foil can also be used to supplement lithium for other types of electrode materials, thereby a broad application prospect is achieved.

A sublimation/distillation apparatus including a crucible with an open end, a heating device thermally coupled to the crucible, an actively cooled collection substrate disposed above the open end of the crucible, and a vacuum chamber housing the crucible, the heating device, and the actively cooled collection substrate.

The present invention relates to a metal leach and recovery process. The process involves subjecting a metal bearing material to a reactive process by combining said metal bearing material with a leaching agent to liberate at least one metal value and forming a first aqueous leach pulp. This first aqueous leach pulp is subjected to a solid liquid separation step thereby providing a first clarified aqueous leach solution and a second aqueous leach pulp. The first clarified aqueous leach solution is then subjected to solvent extraction thereby obtaining the first aqueous raffinate. The second aqueous leach pulp is subjected to at least two further solid liquid separation steps of which some or all are in a counter current decantation (CCD) arrangement. Each of the solid liquid separation steps of the CCD arrangement results in an aqueous liquor and aqueous suspension of solids wherein each aqueous suspension of solids resulting from each solid liquid separation step of the CCD arrangement is passed to the subsequent solid liquid separation step and the suspension of solids resulting from the final solid liquid separation step is removed from the process. Further, each aqueous liquor resulting from each solid liquid separation step of the CCD arrangement is passed to the previous solid liquid separation step. The further solid liquid separation steps result in at least one further clarified aqueous leach solution. The at least one further clarified aqueous leach solution is/are subjected to solvent extraction thereby obtaining at least one further aqueous raffinate. At least a portion of the one or more of the at least one further aqueous raffinates is fed into the final solid liquid separation is of the CCD arrangement. The process provides a flocculation system comprising either: (i) addition of an organic polymeric flocculant to or prior to at least one solid liquid separation step, which polymeric flocculant is formed from 2-acrylamido-2-methylpropane sulphonic acid (ATBS) or salts thereof as a homopolymer or copolymer with at least one water-soluble ethylenically unsaturated monomer; or (ii) addition of an organic polymeric flocculant and at least one support agent to or prior to at least one solid liquid separation step, which at least one support agent is selected from at least one of the group consisting of oxidizing agents, reducing agents, irradiation and free radical producing agents. The process provides significantly improved metal extraction and recovery.

A method of leaching a gold/copper-containing sulfidic mined material that includes two leach stages, with a gold leach stage leaching gold from the material with a gold leach liquor and a copper leach stage leaching copper from the material with a copper leach liquor.

A sublimation/distillation apparatus including a crucible with an open end, a heating device thermally coupled to the crucible, an actively cooled collection substrate disposed above the open end of the crucible, and a vacuum chamber housing the crucible, the heating device, and the actively cooled collection substrate.