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An Overview of Recovery of Metals from Slags

Nov 19, 2020· Direct reduction of Fe 2 SiO 4 using reducing agents, followed by magnetic separation, is a typical pyrometallurgical process for iron recovery from copper slag and has attracted significant attention over the last decade (Liu et al., 2009, Li et al., 2010, Sun et al., 2013, Yang et al., 2011, Zhang et al., 2020a, Zhang et al., 2020b).

Iron Recovery from Discarded Copper Slag in a RHF Direct ...

Nov 16, 2020· The most common magnetic separation techniques are cross-belt magnetic, drum magnetic, ... Depending on used mineral, copper slag can also contain Co, Ni, Zn, As and Pb too.

An Overview of Recovery of Metals from Slags

Numerous laboratory-scale studies have focused on the reduction and magnetic separation of copper slags [22][23] [24]. A high recovery ratio and grade of iron in the concentrate can typically be ...

Innovative methodology for comprehensive and harmless ...

air oxidation and magnetic separation. The oxidation of slag was carried out in both solid and liquid states, attempting to optimize the conditions of each. The effects of oxidation time, temperature, slag basicity, and magnetic field strength on recovery and grade of the concentrate were investigated and optimized oxidation of iron mono-oxide ...

Improving Beneficiation of Copper and Iron from Copper ...

Jun 20, 2018· In this work, a selective co-reduction and magnetic separation process was developed to economically and eco-friendly clean copper slag and synchronously upgrade nickel laterite. Through the innovative process, not only the valuable metals, such as Fe, Ni and Cu, can be recovered, but also the hazardous elements can be removed from copper slag ...

(PDF) A Study on Reduction of Copper Smelting Slag by ...

Slag Deepfield Copper Electromagnet Few materials are as damaging to magnets and equipment as slag, but the extra-heavy-duty structural design of the Slag Deepfield Copper Electromagnet (SDC) is built to take it. Whether it's ultra-abrasive scrap, slabs, billets, drop balls, or slag scrap, this is the magnet that can do it all. The copper-wound version…

Separation & sorting technology for recycling incineration ...

The recovery body of copper slag was mainly copper matte, returned to smelting process of copper by means containing acid leaching, flotation recovery and depletion recovery. 3,7,8) Copper slag contains large amounts of fayalite, direct magnetic separation of iron recovery is limited. Recycling method for Fe is mainly roasting-magnetic ...

RECOVERY OF COPPER FROM COPPER SLAG AND COPPER …

An earlier work noted that magnetic separation is a feasible way to recover iron from the tailings of waste copper slag flotation. Unfortunately, the iron grade of magnetic products and the recovery of iron by the magnetic separation process is relatively low, only 52.21% and 38.09%, respectively, due to the

Recovery of iron from copper slag by deep reduction and ...

Oct 01, 2014· The present work, the second of a series about the treatment of converter slag, proposes a new route for the selective recovery of copper and cobalt from Cu–Co–Fe matte by magnetic separation-sulphuric acid leaching (MS-SAL).

Iron Recovery from Discarded Copper Slag in a RHF Direct ...

Magnetic separation and the reduction smelting method are used to recover and separate iron fr om. copper slag. Physical separation is an appropriate method for the recovery of iron from copper slag,

Iron Recovery from Discarded Copper Slag in a RHF Direct ...

The viscosity of the copper molten slag was largely determined by the magnetite content in slag, which directly influences the settling separation of copper droplet from copper smelting slag. As a result, reducing the magnetite content in slag using reducing agents is an important way to achieve the settling separation of copper droplet from

Reduction of Magnetite from Copper Smelting Slag using ...

Magnetic separation. Magnetic head pulleys; Magnetic drums; Suspension magnets (self-cleaning) ... The effective STEINERT separation solutions for dry mechanical processing of waste incineration slag. ... These fine fractions contain a particularly high proportion of recoverable heavy metals such as copper. Because electronic components with ...

Mechanistic study on calcium ion diffusion into fayalite ...

Mar 20, 2020· Attempts to economically and effectively treat copper slag (CS) and ferruginous manganese ore(FMO) using the traditional direct reduction–magnetic separation process have faced many challenges, such as low levels of metal recovery, poor cost-effectiveness and the need for a high proportion of additives.

The Revovery of Copper and Cobalt from Oxidized Copper …

Nov 16, 2020· The most common magnetic separation techniques are cross-belt magnetic, drum magnetic, ... Depending on used mineral, copper slag can also contain Co, Ni, Zn, As and Pb too.

Iron Recovery from Discarded Copper Slag in a RHF Direct ...

By using DR followed by a magnetic separation process for iron recovery from copper slag, Yang obtained iron powder of 92.05% iron content with an iron recovery rate of 81.01%, and Wang obtained iron powder of 92.96% iron content with an iron recovery rate of 93.49%. Both of their tests have achieved good results.

Separation & sorting technology for recycling incineration ...

Slag Deepfield Copper Electromagnet Few materials are as damaging to magnets and equipment as slag, but the extra-heavy-duty structural design of the Slag Deepfield Copper Electromagnet (SDC) is built to take it. Whether it's ultra-abrasive scrap, slabs, billets, drop balls, or slag scrap, this is the magnet that can do it all. The copper …

Slag Deepfield Copper Electromagnet | Magnetic Lifting ...

minerals Article Iron Recovery from Discarded Copper Slag in a RHF Direct Reduction and Subsequent Grinding/Magnetic Separation Process Zhicheng Cao 1,2, Tichang Sun 1,*, Xun Xue 1,2 and Zhanhua Liu 2 1 Key Laboratory of High-Efficient Mining and Safety of Metal Mines, Ministry of Education, University of Science and Technology Beijing, Beijing 100083, China; …

Alternative Reduction of Copper Matte in Reduction Process ...

techniques and magnetic separation. A previous article reported that floatation and magnetic separation methods, using slag, did not result in satisfactory extractions from converter slag (1). The means which are used for the recovery of copper and cobalt by hydrometallurgical methods are as follows: leaching with H 2SO

copper ore slag china magnetic separators - VETURA Heavy ...

Nov 16, 2020· The most common magnetic separation techniques are cross-belt magnetic, drum magnetic, ... Depending on used mineral, copper slag can also contain Co, Ni, Zn, As and Pb too.

USA - Copper smelting with calcareous flux - Google ...

By using DR followed by a magnetic separation process for iron recovery from copper slag, Yang obtained iron powder of 92.05% iron content with an iron recovery rate of 81.01%, and Wang obtained …

Slag Deepfield Copper Electromagnet | Magnetic Lifting ...

Magnetic separation. Magnetic head pulleys; Magnetic drums; Suspension magnets (self-cleaning) ... The effective STEINERT separation solutions for dry mechanical processing of waste incineration slag. ... These fine fractions contain a particularly high proportion of recoverable heavy metals such as copper. Because electronic components with ...

Recovery of iron from copper slag by deep reduction and ...

Apr 01, 2019· An innovative technology for direct reduction-magnetic separation with the addition of Na 2 CO 3 and CaO was studied to upgrade copper slag assaying 40.33% Fe total and 0.65% Cu. It is difficult to recover iron and copper from the slag by direct reduction since the iron mainly occurs in fayalite and the copper exists in copper sulfide.

An Overview of Recovery of Metals from Slags

Nov 20, 2013· Aiming at recovering iron from high-iron-content copper slag, this article introduced a combination technology of deep reduction and magnetic beneficiation, investigated the iron recovery efficiency and optimized the technical conditions. When coke powder with 86wt% fixed carbon was used as a reductant, iron was successfully extracted from the copper slag.

Utilization of Waste Copper Slag to Produce Directly ...

Waste copper slag is a refractory material with high iron content, but it is difficult to recovery iron minerals from the slag because the iron mainly occurs in fayalite. A new technology of coal-based direct reduction-magnetic separation process was developed to recover iron from the slag assaying 39.85% Fe total and 0.33% Cu.

Synergetic utilization of copper slag and ferruginous ...

magnetic separation copper slag The Keywords Chromium High carbon ferrochrome slag Magnetic separation magnetic seperators used in slag crusher magnetic seperators used in slag crusher Copper …

Magnetic separation-sulphuric acid leaching of Cu–Co–Fe ...

Studies on the direct reduction of carbon-bearing pellets made from discarded copper slag have been conducted in this paper. They include the influences of reduction coal content, limestone content, industrial sodium carbonate content, reduction temperature, reduction time and layers of carbon-bearing pellets on reduction effect. Finally, the optimum conditions have been obtained.