1/4/2019· Direct reduction-magnetic separation is an efficient way to recovery iron from copper slag, where iron and copper minerals can be transformed into the desired phases (metallic Fe and Cu) by direct reducing the mixture of copper slag and carbon as a reductant at about 1200–1300 °C [,, ].
1/10/2014· Cu–Co–Fe matte obtained from copper converter slag by reductive-sulfidizing smelting was treated by magnetic separation-sulphuric acid leaching (MS-SAL) process to recover the metal values, copper and cobalt.
20/6/2018· In recent years, extensive studies have been carried out to recover the valuable metals from copper slag, involving in magnetic separation (Zheng and Xiao, 2011), selective agglomeration-reverse flotation (Subrata et al., 2015), slag modification-physical separation (Guo et al., 2016), smelting reduction (Prince et al., 2017),aluminothermic smelting reduction (Heo et al., 2016), direct reduction
dispersive spectroscopy (EDS) indicates that fayalite (2FeOSiO2) and magnetite (Fe3O4) in the copper slag are reduced into metallic Fe in the direct reduction (DR) process, and the mass and heat transfer become stronger from the bottom to the top layer of the pellets, resulting in a rising iron recovery rate.
The roasting-magnetic separation process is the route to convert the metals into a desired phase, which can be easily separated from the slag through mixing copper slag with calcium oxide as fluxes and carbon as a reducing agent, then roasting the mixture at
20/3/2020· This paper proposes an eco-friendly process to synchronously utilise copper slag and ferruginous manganese ore by co-reduction followed by a magnetic-separation process to solve those problems. In the process, MnO 2 within FMO acted as a catalyst to promote the reduction of fayalite and copper sulphide contained in CS, and thus improve the metallisation rate of Fe and Cu.
14/11/2013· Before doing dry magnetic separation, the waste copper slag reduced by the reduction reaction step was first crushed to a particle size of 75–104 μm in diameter. This is to liberate the iron-rich parts contained in the reduced waste copper slag
recovery and depletion recovery.3,7,8) Copper slag con-tains large amounts of fayalite, direct magnetic separation of iron recovery is limited. Recycling method for Fe is mainly roasting-magnetic separation recycling and recov-ery-magnetic separation recycling
The iron in waste copper slag is mainly in the form of fayalite; therefore, Palacios and Sánchez (2013) and Li et al. (2013) have attempted to oxidize fayalite into iron oxides and then recycle...
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
1/4/2019· Direct reduction-magnetic separation is an efficient way to recovery iron from copper slag, where iron and copper minerals can be transformed into the desired phases (metallic Fe and Cu) by direct reducing the mixture of copper slag and carbon as a reductant at about 1200–1300 °C [,, ].
Magnetic Separator Copper Magnetic Separator Copper offers 2924 magnetic separator copper products About 82 of these are mineral separator 11 are other metal metallurgy machinery and 1 are waste management A wide variety of magnetic separator copper options are available to you such as refuse collector magnetic separator and gravity separator
The optimum conditions for recovering iron by oxidizing roasting and magnetic separation are as follows: calcium oxide content of 25 wt.%, mixed gas flow rates of CO2 and CO of 180 and 20 mL/min, oxidizing roasting at 1323 K for 2 h, grinding the modified slag
recovery and depletion recovery.3,7,8) Copper slag con-tains large amounts of fayalite, direct magnetic separation of iron recovery is limited. Recycling method for Fe is mainly roasting-magnetic separation recycling and recov-ery-magnetic separation recycling
The iron in waste copper slag is mainly in the form of fayalite; therefore, Palacios and Sánchez (2013) and Li et al. (2013) have attempted to oxidize fayalite into iron oxides and then recycle...
Gyurov made copper slag oxidation decomposed under pure oxygen system, got different oxidation products at different temperatures and then recycled. 9) Kim used petroleum coke as the reducing agent, reduced copper slag under 1250°C, made reduction product broken-magnetic separation, and got the final magnetic products (iron, more than 65 wt.%).
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
Under the optimized condition of the coke powder content of 14wt%, the calcium-to-silicon mass ratio (Ca/Si) of 0.2, the roasting temperature of 1300°C, the roasting time of 3 h, the grinding time of 20 min, and the magnetic field intensity of 61 kA·m −1, the iron recovery rate of the copper slag can reach 91.82%, and the extracted iron powder has an iron grade of 96.21%.
The results show that under the proper conditions, the copper grade of rougher copper concentrate was increased from 6.43% to 11.04%, iron recovery of magnetic separation was increased
A novel process to upgrade the copper slag by direct
1/4/2019· Direct reduction-magnetic separation is an efficient way to recovery iron from copper slag, where iron and copper minerals can be transformed into the desired phases (metallic Fe and Cu) by direct reducing the mixture of copper slag and carbon as a reductant at about 1200–1300 °C [,, ].
Magnetic separation-sulphuric acid leaching of Cu–Co–Fe
1/10/2014· Cu–Co–Fe matte obtained from copper converter slag by reductive-sulfidizing smelting was treated by magnetic separation-sulphuric acid leaching (MS-SAL) process to recover the metal values, copper and cobalt.
Innovative methodology for comprehensive and harmless
20/6/2018· In recent years, extensive studies have been carried out to recover the valuable metals from copper slag, involving in magnetic separation (Zheng and Xiao, 2011), selective agglomeration-reverse flotation (Subrata et al., 2015), slag modification-physical separation (Guo et al., 2016), smelting reduction (Prince et al., 2017),aluminothermic smelting reduction (Heo et al., 2016), direct reduction
Iron Recovery from Discarded Copper Slag in a RHF Direct
dispersive spectroscopy (EDS) indicates that fayalite (2FeOSiO2) and magnetite (Fe3O4) in the copper slag are reduced into metallic Fe in the direct reduction (DR) process, and the mass and heat transfer become stronger from the bottom to the top layer of the pellets, resulting in a rising iron recovery rate.
Improving Beneficiation of Copper and Iron from Copper Slag by
The roasting-magnetic separation process is the route to convert the metals into a desired phase, which can be easily separated from the slag through mixing copper slag with calcium oxide as fluxes and carbon as a reducing agent, then roasting the mixture at
Synergetic utilization of copper slag and ferruginous
20/3/2020· This paper proposes an eco-friendly process to synchronously utilise copper slag and ferruginous manganese ore by co-reduction followed by a magnetic-separation process to solve those problems. In the process, MnO 2 within FMO acted as a catalyst to promote the reduction of fayalite and copper sulphide contained in CS, and thus improve the metallisation rate of Fe and Cu.
A physico-chemical separation process for upgrading iron
14/11/2013· Before doing dry magnetic separation, the waste copper slag reduced by the reduction reaction step was first crushed to a particle size of 75–104 μm in diameter. This is to liberate the iron-rich parts contained in the reduced waste copper slag
Alternative Reduction of Copper Matte in Reduction Process of
recovery and depletion recovery.3,7,8) Copper slag con-tains large amounts of fayalite, direct magnetic separation of iron recovery is limited. Recycling method for Fe is mainly roasting-magnetic separation recycling and recov-ery-magnetic separation recycling
Recovery of iron from copper slag by deep reduction and
The iron in waste copper slag is mainly in the form of fayalite; therefore, Palacios and Sánchez (2013) and Li et al. (2013) have attempted to oxidize fayalite into iron oxides and then recycle...
Alternative Reduction of Copper Matte in Reduction
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
A novel process to upgrade the copper slag by direct
1/4/2019· Direct reduction-magnetic separation is an efficient way to recovery iron from copper slag, where iron and copper minerals can be transformed into the desired phases (metallic Fe and Cu) by direct reducing the mixture of copper slag and carbon as a reductant at about 1200–1300 °C [,, ].
copper ore slag china magnetic separators VETURA
Magnetic Separator Copper Magnetic Separator Copper offers 2924 magnetic separator copper products About 82 of these are mineral separator 11 are other metal metallurgy machinery and 1 are waste management A wide variety of magnetic separator copper options are available to you such as refuse collector magnetic separator and gravity separator
Recovery of iron from copper slag via modified roasting in
Magnetic separation of precipitated magnetite (Fe3O4) crystals in the copper slag is one of the most effective methods to recover iron resources.
Recovery of iron from copper slag via modified roasting in
The optimum conditions for recovering iron by oxidizing roasting and magnetic separation are as follows: calcium oxide content of 25 wt.%, mixed gas flow rates of CO2 and CO of 180 and 20 mL/min, oxidizing roasting at 1323 K for 2 h, grinding the modified slag
Alternative Reduction of Copper Matte in Reduction Process of Copper Slag
recovery and depletion recovery.3,7,8) Copper slag con-tains large amounts of fayalite, direct magnetic separation of iron recovery is limited. Recycling method for Fe is mainly roasting-magnetic separation recycling and recov-ery-magnetic separation recycling
Recovery of iron from copper slag by deep reduction and
The iron in waste copper slag is mainly in the form of fayalite; therefore, Palacios and Sánchez (2013) and Li et al. (2013) have attempted to oxidize fayalite into iron oxides and then recycle...
Alternative Reduction of Copper Matte in Reduction
Gyurov made copper slag oxidation decomposed under pure oxygen system, got different oxidation products at different temperatures and then recycled. 9) Kim used petroleum coke as the reducing agent, reduced copper slag under 1250°C, made reduction product broken-magnetic separation, and got the final magnetic products (iron, more than 65 wt.%).
Slag Deepfield Copper Electromagnet Magnetic Lifting
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
Recovery of iron from copper slag by deep reduction and
Under the optimized condition of the coke powder content of 14wt%, the calcium-to-silicon mass ratio (Ca/Si) of 0.2, the roasting temperature of 1300°C, the roasting time of 3 h, the grinding time of 20 min, and the magnetic field intensity of 61 kA·m −1, the iron recovery rate of the copper slag can reach 91.82%, and the extracted iron powder has an iron grade of 96.21%.
Recovery of iron and copper from copper tailings by coal
The results show that under the proper conditions, the copper grade of rougher copper concentrate was increased from 6.43% to 11.04%, iron recovery of magnetic separation was increased