نتایج جستجو برای: hydrometallurgy
تعداد نتایج: 165 فیلتر نتایج به سال:
The rapid and improper disposal of electronic waste (e-waste) has become an issue great concern, resulting in serious threats to the environment public health. In addition, e-waste is heterogenous nature, consisting a variety valuable metals large quantities, hence need for development promising technology ameliorate environmental hazards associated with indiscriminate dumping e-waste, recovery...
Currently, the use of called “green solvents” is a challenge that must be assumed by industry, since they contribute to friendly process and where its has been extended, causing research needs, recognition application analysis potential new uses. The main objective this study was analyze global scientific production related glycine or glutamate, amino acids are used in mineral/waste leaching pr...
Efficient formulations used in hydrometallurgy are often based on synergistic action of two oil-soluble extractants at an optimized mole fraction. In this series papers, we describe the N,N’-dimethyl-N,N’-dioctylhexylethoxymalonamide (DMDOHEMA)/di(2-ethylexyl) phosphoric acid (HDEHP) system, and how expression effect varies with acidity, using three common representations: distribution ratios, ...
Mining has advanced primarily through the use of two strategies: pyrometallurgy and hydrometallurgy. Both have been used successfully to extract valuable metals from ore deposits. These strategies, without a doubt, harm environment. Furthermore, due decades excessive mining, there global decline in high-grade ores. This resulted decrease metal supply, which prompted reconsideration these tradit...
Abstract The tremendous efforts made in the research field of solid-state Li-ion batteries has led to considerable advancement this technology and first market-ready systems can be expected near future. community is currently investigating different electrolyte classes (e.g., oxides, sulfides, halides polymers) with a focus on further optimizing synthesis electrochemical performance. However, s...
This review addresses the recovery of metals from all main types spent batteries (including Li-based, Zn-based, and Ni-based batteries) using bioleaching processes. Traditional processes are based on pyrometallurgical hydrometallurgical methods can be costly and, in some cases, cannot effectively recover used battery manufacture. Biobased hydrometallurgy may circumvent these drawbacks. presents...
Due to increasing environmental awareness, tightening regulations and the need meet climate obligations under Paris Agreement, production use of electric vehicles has grown greatly. This growth two significant impacts on environment, with increased depletion natural resources used for lithium-ion batteries these disposal end-of-life batteries. In particular, when are incorrectly landfilled, pol...
there are no appreciable amounts of nickel resources in iran; therefore, secondary resources of this element are to be more considered in future. spent nickel catalysts that are used in various industrial processes are one of them. for example nickel catalyst that is used in hydrogenation of edible oil have large amounts of nickel and they are generally supported on porous materials like silica...
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