·Based on the stratification characteristics of [Hbet][Tf 2 N] and aqueous solution the efficient separation of zinc and cobalt is achieved by the selective dissolution and synchronous extraction of zinc from zinc cobalt slag by the [Hbet][Tf 2 N] H 2 O system in the heating and cooling process The recovery of zinc and regeneration of [Hbet][Tf 2 N] were
The Waelz slag generated during electric arc furnace dust processing is an iron rich product with significant amounts of iron zinc and copper About 600 800 kg of the Waelz slag is generated per ton of the dust processed The Waelz slag samples
·The pyrrhotite in the pyrolysis slag is magnetic and lead and zinc mainly exist in the form of sulfide which has good floatability This inspired us to purify pyrolysis slag by magnetic separation and flotation method The results show that when the grinding particle size of − mm accounts for % the content of Pb and Zn in
Magnetic separation is a physical separation process that relies on the different magnetic properties of components in a mixture micron sized carbonyl iron particles zirconium ferrite steel slag and Fe Zr binary oxide Ishiwata et al 2010; Long et al 2011; Merino Martos et al dissolved heavy metals like zinc and copper can be
·Based on the aforementioned results iron in lead slag was recovered by direct reduction after magnetic separation Lead and zinc are effectively volatilized under high temperature reducing conditions Through the recovery of lead and zinc from lead slag zinc and lead can be resourcefully utilized and environmental problems can be solved
·Direct reduction refers to the process of reducing iron minerals in copper slag to metallic iron particles below the melting temperature of copper slag [] Using direct reduction magnetic separation technology to recover iron resources in copper slag has fair recovery effect and short reaction time which is the development trend of comprehensive
·The presented work offers an innovative process scheme for valorizing Pb Zn slag which involves crushing grinding and separation techniques to concentrate valuable components non ferrous metals This methodology could have a significant impact on the global beneficiation of metallurgical slags since it is significantly more simple environmentally friendly
·The iron grade in the magnetic products reaches % which is % higher than that of the original steel slag while the iron grade in non magnetic products decreases to % representing
·In recent years many researchers studied the secondary use of steel slag [7] The main components of steel slag include Fe x O Fe CaO SiO 2 MgO and MnO [8] According to the composition and structural properties of the slag the Fe containing resources in the slag can be recovered by magnetic separation and returned to the steelmaking process and the
·The Waelz slag generated during electric arc furnace dust processing is an iron rich product with significant amounts of iron zinc and copper About 600 800 kg of the Waelz slag is generated per ton of the dust processed The Waelz slag samples from two different plants were thoroughly characterized using inductively coupled plasma optical emission spectroscopy
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