A method and apparatus for processing a material are provided, the material being the upper layer from a metal melting process, the material containing one or more salts, the material containing one or more metals, the salts and/or metals being recycled as a result of the method/apparatus. The method includes feeding the material to a leaching step; obtaining a leachate from the leaching step; feeding the leachate to a drying step or spray drying step; obtaining a solid from the drying step or spray drying step. Off gases from the leaching step are used to provide heat to the drying step. The drying step provides a product well suited to being turned into pellets for reuse.

A method and system for recovering a high yield of low carbon ferrochrome from chromite and low carbon ferrochrome produced by the method. A stoichiometric mixture of feed materials including scrap aluminum granules, lime, silica sand, and chromite ore are provided into a plasma arc furnace. The scrap aluminum granules are produced from used aluminum beverage containers. The feed materials are heated, whereupon the aluminum in the aluminum granules produces an exothermic reaction reducing the chromium oxide and iron oxide in the chromite to produce molten low carbon ferrochrome with molten slag floating thereon. The molten low carbon ferrochrome is extracted, solidified and granulated into granules of low carbon ferrochrome. The molten slag is extracted, solidified and granulated into granules of slag.

The present application discloses an on-line aluminum scrap remelting device, comprising an aluminum scrap conveying device, a primary aluminum scrap purification device, a remote aluminum scrap transport device, an ultimate aluminum scrap purification device, and a feed remelting device. The application further discloses an on-line aluminum scrap remelting process, comprises machined scrap removal, underground aluminum scrap transport collection, temporary storage, crushing, spin-drying, remote transport, secondary magnetic separation, drying, weighing, remelting, tempering, and use.

An installation for melting metallic scraps, and particularly adapted for melting aluminium scraps, includes a system for cleaning the metallic scraps, and in particular for cleaning the scraps from organic compounds.

A method and apparatus for processing a material are provided, the material being the upper layer from a metal melting process, the material containing one or more salts, the material containing one or more metals, the salts and/or metals being recycled as a result of the method/apparatus. The method includes feeding the material to a leaching step; obtaining a leachate from the leaching step; feeding the leachate to a drying step or spray drying step; obtaining a solid from the drying step or spray drying step. Off gases from the leaching step are used to provide heat to the drying step. The drying step provides a product well suited to being turned into pellets for reuse.

A method for regenerating different types of copper-containing aluminum alloys using aluminum alloy scrap from aeronautical industry includes detecting a chemical composition of said aluminum alloy scrap and optionally adding a suitable amount of a metal or alloy additive according to a composition requirement of a target aluminum-copper alloy, thereby obtaining a mixture of aluminum alloy scrap and metal or alloy additive; vacuum smelting the mixture of aluminum alloy scrap and metal or alloy additive in a vacuum furnace, wherein impurities are removed and an aluminum alloy solution is formed; filtering the aluminum alloy solution using a filter to obtain a melt comprising a target aluminum alloy composition; and casting the target aluminum alloy composition from said melt.

A method for recycling an aluminum alloy scrap includes performing selective oxidation roasting and washing treatment on the aluminum alloy scrap to obtain an uncoated aluminum alloy scrap; melting the uncoated aluminum alloy scrap in a refining furnace to obtain aluminum alloy melt liquid, online-detecting components of the aluminum alloy melt liquid and adding a metallic copper, a copper alloy, a magnesium alloy or a zinc alloy to the aluminum alloy melt liquid according to the requirements of target alloy components, performing pressure-controlled and oxygen-controlled melting through regulating pressure intensity and oxygen partial pressure in the refining furnace and coupling an external-field stirring mode to obtain refining aluminum alloy melt liquid; filtering the refining aluminum alloy melt liquid, to obtain an aluminum alloy melt with the target alloy components; and casting the aluminum alloy melt.

A method and system for recovering a high yield of low carbon ferrochrome from chromite and low carbon ferrochrome produced by the method. A stoichiometric mixture of feed materials including scrap aluminum granules, lime, silica sand, and chromite ore are provided into a plasma arc furnace. The scrap aluminum granules are produced from used aluminum beverage containers. The feed materials are heated, whereupon the aluminum in the aluminum granules produces an exothermic reaction reducing the chromium oxide and iron oxide in the chromite to produce molten low carbon ferrochrome with molten slag floating thereon. The molten low carbon ferrochrome is extracted, solidified and granulated into granules of low carbon ferrochrome. The molten slag is extracted, solidified and granulated into granules of slag.

In order to provide a method and device that allow sorting of light-alloy aluminium scrap, the disclosure proposes a method for sorting aluminium scrap and alloys thereof wherein the aluminium scrap is fed to a measuring station, where the electrical conductivity of each aluminium part is measured, and, depending on the result of the measurement, the part is transported further on a dedicated path.

A method and apparatus to reclaim metals from scrap material such as automobile shredder residue (ASR) that, after separating out light density components, separates out friable material such as rock and glass by crushing and screening operations to generate a high metal content product.