Iron Recovery from Copper Slag Through Oxidation-Reduction .Iron Recovery from Copper Slag Through Oxidation-Reduction Magnetic Concentration at Intermediate Temperature. Authors; Authors and . Recovery of iron from the copper slag is very essential not only for recycling the valuable metals and mineral resources but also for protecting the environment. The purpose of this.copper recovery magnetic slag,Improving Copper Recovery from Production Slags by Advanced .Improving Copper Recovery from Production Slags by Advances Stirring Methods. Proceedings of . Keywords: slag cleaning, stirring mode, copper slag, submerged arc furnace, stirring reactor. Abstract ... On the assumptions of a shielding effect on the magnetic field strength because of the graphite-layer between the two.
Preparation of metallic iron powder from copper slag by .
Copper slag is a solid waste that has to be treated for metals recovery. In order to recover iron from copper slag, the technology of carbothermic reduction and magnetic separation was developed. During the reduction roasting, additive CaO reacted with Fe2SiO4 of copper slag, forming. CaO·SiO2 and 2CaO·SiO2, which.
Smelting reduction and kinetics analysis of magnetic iron in copper .
May 25, 2017 . To improve the recovery of copper, the viscosity of copper molten slag is decreased by the reduction of magnetic iron, which, in turn, accelerates the settling and separation of copper droplets from the slag. A new technology is proposed in which waste cooking oil is used as a reductant to reduce magnetic.
Crystallization Behaviors of Copper Smelter Slag Studied Using .
Apr 18, 2014 . Magnetic separation of precipitated magnetite (Fe3O4) crystals in the copper slag is one of the most effective methods to recover iron resources. It is preferable to convert molten fayalite slag to magnetite during the cooling of the slag with oxidation. With a time-temperature-transformation (TTT) diagram, the.
copper recovery magnetic slag,
Recovery of iron and copper from copper tailings by coal-based .
Oct 15, 2017 . A technique comprising coal-based direct reduction followed by magnetic separation was presented to recover iron and copper from copper slag flotation tailings. Optimal process parameters, such as reductant and additive ratios, reduction temperature, and reduction time, were experimentally determined.
Improving Copper Recovery from Production Slags by Advanced .
Improving Copper Recovery from Production Slags by Advances Stirring Methods. Proceedings of . Keywords: slag cleaning, stirring mode, copper slag, submerged arc furnace, stirring reactor. Abstract ... On the assumptions of a shielding effect on the magnetic field strength because of the graphite-layer between the two.
Improving Beneficiation of Copper and Iron from Copper Slag by .
Apr 14, 2016 . 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.
A Comprehensive Recovery of Copper-Iron Experimental Research .
With the depletion of mineral resources, more attention is paid on the secondary resources to recover valuable metals. In this paper, a research is carried out to recover copper and iron from copper smelting slag by flotation and magnetic separation. The influence of grinding fineness and collectors on flotation of copper are.
AP-42, CH 12.9: Secondary Copper Smelting - EPA
Secondary copper recovery is divided into 4 separate operations: scrap pretreatment, smelting, alloying, and casting. Pretreatment . and magnetic separation. The scrap may then be compressed into . pretreatment methods include flotation and leaching to recover copper from slag. Flotation is typically used when slag.
NICKEL RECOVERY FROM ELECTRIC ARC FURNACE SLAG BY .
equal amount of slag and metals is produced in a charge chrome plant. To recover Cr from charge chrome slag, magnetic and gravity separation methods have been used at bench and industrial scale [19, 20]. • Copper slag. The methods used to recover copper from slags are basically flotation, leaching and roasting .
iron making from magnetic slag
Jun 7, 2017 . Iron Slag Recycle Process; magnetic separator iron ore beneficiation. copper recovery magnetic slag copper recovery magnetic slag. copper recovery magnetic slag. Recovery of iron from copper slag by deep reduction and magnetic Making copper sulphate crystals with copper oxide and sulfuric A: iron.
Recovery of Copper from Reverberatory Copper Slag and . - SAIMM
metal recovery. Fe removal from the leaching of copper slag is done by the formation of a metal hydroxide. Hydrolysis is the most common form of precipitation . slag. The temperature of digestion was 250oC. The residue was leached using a single volume of distilled water for 12 h. The slurry was stirred by magnetic stirrer.
Recovery of copper and cobalt from ancient slag. - NCBI
Waste Manag Res. 2006 Apr;24(2):118-24. Recovery of copper and cobalt from ancient slag. Bulut G(1). Author information: (1)Istanbul Technical University, Mining Engineering Department, Mineral and Coal Processing Section, Maslak-Istanbul, Turkey. gbulutitu.edu.tr. About 2.5 million tonnes of copper smelter slag are.
Modelling and simulation of a copper slag cleaning . - IOPscience
concept comprises a magnetic field in the recovery furnace to increase the recovery rate by electro- magnetic stirring. The feasibility of the electromagnetic (EM) copper slag cleaning process was tested at the. University of Chile on the laboratory scale . The industrial scale pilot plant was realized by Aurubis. AG and SMS.
US4404022A - Dore slag treatment - Google Patents
It should be mentioned that milling and flotation of converter slags to recover copper therefrom is well known in the art. A good study thereof is made in RI 7562 of the Bureau of Mines Report of Investigations/1971, published by the United States Department of the Interior. The converter slags are essentially iron-silica slags.
Influence Of Temperature On The Rate Of Copper Recovery From .
Nov 24, 2015 . Abstract. The aim of the work was to investigate the influence of temperature on the rate of copper removal from the obtained slag from the flash direct-to-blister process by means of a carbon reducer. The slag used in this work was taken from the direct-to-blister Outokumpu flash furnace at the smelter in.
Co-reduction of Copper Smelting Slag and Nickel Laterite to .
In this study, a new technique was proposed for the economical and environmentally friendly recovery of valuable metals from copper smelting slag while simultaneously upgrading nickel laterite through a co-reduction followed by wet magnetic separation process. Copper slag with a high FeO content can decrease the.
Copper slag | Elemetal B.V.
This copper is currently not or barely recovered and after applying it as a building material it is considered to be lost. Besides this, leaching of heavy metals (mainly copper) from the copper slag into ground waters has a negative environmental impact. Elemetal is able to recover >0.3% of copper from copper slag using the.
STEINERT Global - Reducing the arsenic content in Copper
Jan 11, 2016 . Copper occurs in many forms throughout the world and has wide and varying applications; demand is still increasing and current forecast is some 17 million tonnes per annum. The main ore minerals of copper are in sulphide form dominated by Chalcopyrite (CuFeS2), with Bornite, Covellite, and Chalcocite.
Numerical Simulation of the Copper Slag Cleaning Process - Hal
Jun 21, 2016 . the form of copper matte droplets of the size from 5 to 1000 µm. By introducing orthogonal electric and magnetic fields in the slag intensive stirring can be generated to increase the probability of inter-droplets collisions, which accelerates their growth and therefore improves the settling process. In recent.
Copper extraction - Wikipedia
Copper extraction refers to the methods used to obtaining copper from its ores. The conversion of copper consists of a series of chemical, physical, and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors. As in all mining.
A Study on the Recovery of Iron from Copper Slag with Temperature
copper smelting slag have been proposed. For the proposed process, there are the technology of the concentration and separation of the iron components by magnetic separation, and a secondary smelting process to recover alloy phase iron by adding a reducing agent by dry smelting method. However, the magnetic.
Magnets for the recycling industry | Goudsmit Magnets
Through various real-world tests Goudsmit has determined that the 38HI technology performs best in the slag-reprocessing sector. This is due to the extremely high magnetic force and rotation speed. Particularly when it comes to the separation of heavy metals such as copper and brass, we achieve a significantly higher.
Closed-loop solvometallurgical process for recovery of lead from .
Oct 26, 2017 . Ferrous slag, which includes iron slag, steel slag, alloy steel slag and ferroalloy slag is mainly treated through magnetic and gravity separation methods to recover chromium and nickel.1. Non-ferrous slag, which includes copper, zinc and lead slag, o en has a high iron content, which is comparable to that.