In recent years, under the background of global low-carbon development, production NdFeB magnets has increased dramatically. With end magnet life, a large number discarded products will be produced in future. At same time, 6–73% industrial waste manufacturing process magnets. The rare earth content (about 30 wt.%) these scraps is generally higher than that raw ore, and recovery elements from th...

The recycling of spent lithium-ion batteries (Li-ion Batteries) has drawn a lot interest in recent years response to the rising demand for corresponding high-value metals and materials mounting concern emanating from detrimental environmental effects imposed by conventional disposal solid battery waste. Numerous studies have been conducted on topic used Li-ion produce either or specific chemica...

Abstract Electronic waste is a dominant global issue with over 50 million tons generated annually. Still, as an amalgamation of precious and rare raw materials, electronic considerable economic resource the most valuable components located on printed circuit boards. Gold widely used in electronics numerous applications, although principally for contact points external connectors. The recovery g...

Given the increasing demand for nickel (Ni) in Li-ion battery industry, agromining chain of processes, based on phytomining Ni combined with hydrometallurgy, has potential to form an important source Ni. Currently, plants grown Ni-rich soils (in this case Odontarrhena chalcidica), having hyperaccumulated Ni, are ashed, and is transferred from ash solution by sulfuric acid leaching. This work fo...

Oxalic acid is an attractive chemical platform potentially available from CO2 due to its established applications and characteristics enabling it serve as a mediator in hydrometallurgy including iron-making. However, method for synthesizing oxalic has yet be established. In the present work, formation of oxalate scaffold during heating cesium carbonate (Cs2CO3) presence H2 reactants was experim...

With the emergence of portable electronics and electric vehicle adoption, last decade has witnessed an increasing fabrication lithium-ion batteries (LIBs). The future development LIBs is threatened by limited reserves virgin materials, while inadequate management spent endangers environmental human health. According to Circular Economy principles aiming at reintroducing end-of-life materials ba...

This paper reports on the recovery of zinc, cobalt and manganese by two-step leaching of zinc-plants purification residue with sulfuric acid. The residue, hot filter press cake (HFC), contains 14 % ZnO, 4.8 % Co3O4 and 22.9 % MnO. Effects of different parameters are determined and used to optimize the process. With acid to hot filter press cake (HFC) stoichiometry of 0.85, acid concentration of...