The need to drive towards sustainable metal resource recovery from end-of-cycle products cannot be overstated. This review attempts investigate progress in the development of recycling strategies for strategic metals, such as precious metals and base catalytic converters, e-waste, batteries. Several methods resources have been explored these waste streams, pyrometallurgy, hydrometallurgy, biohy...

Agitation leaching is a promising technology in hydrometallurgy for treating copper–cobalt oxide ores. In this work, the behavior of ores containing around 2.3% Cu and 0.3% Co received from Congo was investigated varying particle size, acidity, pulp density, temperature, time, reduction potential. XRD, optical microscopy (OM), ICP-OES methods were used to examine chemical composition, morpholog...

Jarosite, beudantite and alunite are members of the supergroup. Minerals like those have been detected in different environments on Earth. These jarosite-type compounds common acid rock drainage sulfate soils, resulting from weathering sulfide ores; they also present bioleaching systems because found cultures iron-oxidizing microorganisms. Jarosite is generated hydrometallurgical circuits, main...

It is a matter of strategic independence for many countries to urgently find processes that take into account environmental and economic issues when recycling critical metals. Liquid–liquid (L/L) extraction promising method recovering rare-earth elements from electrical electronic waste. However, an optimized process on industrial scale has not yet been established. One the main reasons lack fu...

Glass-ceramics are polycrystalline materials of fine microstructure that are produced by the controlled crystallisation (devitrification) of a glass. Numerous silicate based wastes, such as coal combustion ash, slag from steel production, fly ash and filter dusts from waste incinerators, mud from metal hydrometallurgy, different types of sludge as well as glass cullet or mixtures of them have b...

The modes of action of the commercial solvent extractants used in extractive hydrometallurgy are classified according to whether the recovery process involves the transport of metal cations, M(n+), metalate anions, MXx(n-), or metal salts, MXx into a water-immiscible solvent. Well-established principles of coordination chemistry provide an explanation for the remarkable strengths and selectivit...

Abstract The problem of e-waste processing and recovery valuable metals from such waste for the second use is attracting more scientists’ attention. Liquid extraction as one hydrometallurgy steps a traditional method metal recovery. However, application solvent not meet green chemistry principles due to organic solvents. Aqueous two-phase systems based on water-soluble polymers are promising al...