iron recovery from slag processing
iron recovery from slag processing
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iron recovery from slag processing

RECOVERY OF IRON FROM COPPER FLASH SMELTING SLAGS

CHAPTER 01 Metal Recovery INTRODUCTION The flash smelting process has been used in copper industry for a number of years and has replaced some conventional copper smelting processes in Chile. The high copper content in the slag in this process, require

Recovery of iron from waste slag of pyrite processing ...

A considerable amount of waste slag from the pyrite roasting process is produced every year. Recovery of iron from the waste slag is of great interest for maximum use of mineral resource ...

Recovery of iron from waste slag of pyrite processing ...

A considerable amount of waste slag from the pyrite roasting process is produced every year. Recovery of iron from the waste slag is of great interest for maximum use of mineral resource, reduction of environment impact and improvement of economical benefits to the related companies.

Metal Recovery from Steelmaking Slag

temperature, slag basicity, and magnetic field strength on recovery and grade of the concentrate were investigated and optimized oxidation of iron mono-oxide (FeO) to magnetite (Fe 3 O 4) and other spinel ferrites in RO phase was observed. Solid state oxidation achieved overall optimum

US20070283785A1 - Process for recovery of iron from copper ...

The present invention relates to a process for recovery of iron from copper slag. This invention particularly relates to a process for recovery of iron from a waste like granulated copper slag generated during the production of copper from its ores by a pyrometallurgical method. The present invention will be useful for solving the ecological and environmental issues with an added economic ...

Recovery of iron from copper slag via modified roasting in ...

Jun 04, 2020  To maximize the recovery of iron and copper from copper slag, the modification process by adding a compound additive (a mixture of hematite,

Recovery of value metals from copper smelter slag by ...

Nov 14, 2013  At the second stage iron from the residue after leaching recovered to water-soluble form additionally. The total iron recovery is 88.3%, considering the first stage. At the same time the recovery process of nonferrous metals and iron into solution is more selective than when slag processing at one stage. 3.2. Kinetics study

Slag recycling process Scrap - YouTube

Feb 01, 2017  New technology of iron recovery from slagMake additional profit up to $2.5 mln per year!We transform steelworks waste from headache into incom generating ass...

Slag recycling - recovery

With high-quality iron ore grades with an iron content of 64 to 67 %, a blast furnace typically produces about 0.25 to 0.30 t of slag per t of pig iron. In the case of inferior grade ores below 60 %, the amount of slag is typically 0.35 to 0.50 slag/t of pig iron [1].

Recovery of iron from waste slag of pyrite processing ...

A considerable amount of waste slag from the pyrite roasting process is produced every year. Recovery of iron from the waste slag is of great interest for maximum use of mineral resource, reduction of environment impact and improvement of economical benefits to the related companies.

WO2007066350A1 - A process for recovery of iron from ...

The present invention relates to a process for recovery of iron from copper slag. This invention particularly relates to a process for recovery of iron from a waste like granulated copper slag generated during the production of copper from its ores by a pyrometallurgical method. The present invention will be useful for solving the ecological and environmental issues with an added economic ...

Iron Recovery from Copper Slag Through Oxidation-Reduction ...

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 study was to investigate the possibility of separating fayalite by oxidation-reduction process into Magnetite and silicate phases in intermediate temperature condition.

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.

Recycling Nickel Slag by Aluminum Dross: Iron-extraction ...

rate was inlet into slag system to oxidize the iron-bearing phase from fayalite to magnetite, followed by the magnetic separation and reduction process. Learning from the treatment techniques for cooper slag, aluminothermic reduction process is adopted for the iron recovery from nickel slag

Carbothermic Reduction of Bauxite Residue for Iron ...

% of iron recovery, leaving the slag residue open to rare earths processing downstream. Following the previous works towards bauxite residue, Kaußen and Friedrich looked into [10] the recovery of aluminium via three different methods; a) Bayer-type process, b) Bayer-type process with slag leaching, and c) soda sinter process.

Optimization of magnetic separation process for iron ...

Feb 01, 2017  To improve the efficiency of iron recovery from steel slag and reduce the wear-and-tear on facilities, a new method was proposed by adding a secondary screen sizer to the magnetic separation process according to grain size distribution of magnetic iron (M-Fe) in the slag.

TOWARDS RED MUD VALORISATION: EAF SMELTING

A smelting process for iron recovery and slag conditioning was investigated. Two slags were produced in an EAF under different fluxing conditions using lime and silica as fluxing agents. Iron was mainly recovered to the metal. Low S and acceptable P contents were achieved in the metal product.

Slag - Wikipedia

Slag is the glass-like by-product left over after a desired metal has been separated (i.e., smelted) from its raw ore.Slag is usually a mixture of metal oxides and silicon dioxide.However, slags can contain metal sulfides and elemental metals. While slags are generally used to remove waste in metal smelting, they can also serve other purposes, such as assisting in the temperature control of ...

Recovery of cobalt from converter slag of Chambishi Copper ...

recovery, due to the fact that copper in the converter slag is mainly in the form of metallic copper and chalcocite. As the reducing agent dosage increased, iron recovery increased obviously. For the benefit of metal value recovery by subsequent hydrometallurgical process, a low iron recovery is preferred. Therefore, the optimum

products of slag processing plant - MC World.INC

iron ore slag mill processing plants price. Iron and Steel Slag - USGS Mineral Resources Program. with iron ore, fluxing agents (usually limestone and dolomite) , Slag is transported to processing plants, where it undergoes , Currently [2000], the mill is , 4/ Value is the selling price at plant and includes, for a few facilities, estimat. More

Iron Recovery from Copper Slag Through Oxidation-Reduction ...

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 study was to investigate the possibility of separating fayalite by oxidation-reduction process into Magnetite and silicate phases in intermediate temperature condition.

An overview of recovery of metals from slags

On this basis, a review of a number of methods for recovery of metals from the slags was made. It can be seen that a large amount of slags is produced each year. They usually contain a quantity of valuable metals except for blast furnace slag and they are actually a secondary resource of metals.

Process for recovery of iron from copper slag - Agrawal ...

A process for the recovery of iron from copper slag which comprises: i. selecting and grinding the copper slag to [the] a size in the range of 2-15 mm. ii. mixing homogeneously copper slag, a reductant and a flux in the ratio range between 20:1:4 to 20:3:10.

Iron Recovery from Copper Slag Through Oxidation-Reduction ...

Large amounts of copper slag containing about 40 wt% iron is generated during the process of producing copper. 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 study was to investigate the possibility of separating fayalite by oxidation-reduction process into ...

Recovery of iron and manganese values from metallurgical ...

Recovery of iron and manganese values from metallurgical slags by the oxidation route Anna Semykina Doctoral Thesis Division of Materials Process Science Department of Materials Science and Engineering Royal Institute of Technology SE-10044 Stockholm, Sweden Akademisk avhandling som med tillstånd av Kungliga Tekniska Högskolan i

Recycling Nickel Slag by Aluminum Dross: Iron-extraction ...

3.2.1. Iron Recovery. Figure 7 shows the images of the reduced product and secondary slag after reaction for 120 min. Iron ingot with the dimension of 10 mm has been coalesced at the bottom of crucible. Moreover, many visible iron droplets have been generated and dispersed in the porous slag or adhered to the inner surface of the crucible.

TOWARDS RED MUD VALORISATION: EAF SMELTING

A smelting process for iron recovery and slag conditioning was investigated. Two slags were produced in an EAF under different fluxing conditions using lime and silica as fluxing agents. Iron was mainly recovered to the metal. Low S and acceptable P contents were achieved in the metal product.

Optimization of magnetic separation process for iron ...

To improve the efficiency of iron recovery from steel slag and reduce the wear-and-tear on facilities, a new method was proposed by adding a secondary screen sizer to the magnetic separation process according to grain size distribution of magnetic iron (M-Fe) in the slag. The final recycling efficiency was evaluated by calculating the percentage of recycled M-Fe to the maximum amount of M-Fe ...

Iron and Steel Slag Utilization: A Comprehensive Analysis

byproduct of molten iron processing and originates from the gangue in the mineral raw materials such as iron ore, coal, and limestone as well as those in the flux used at steel refining processes to remove Si, P, S, and other impurities. The iron and steel slag that is generated can be broadly categorized into blast furnace and steel making slag.

Waelz process - Wikipedia

The recovered dust (Waelz oxide) is enriched in zinc oxide and is a feed product for zinc smelters, the zinc reduced by-product is known as Waelz slag. Sub-optimal features of the process are high energy consumption, and lack of iron recovery (and iron rich slag).

Recovery of cobalt from converter slag of Chambishi Copper ...

recovery, due to the fact that copper in the converter slag is mainly in the form of metallic copper and chalcocite. As the reducing agent dosage increased, iron recovery increased obviously. For the benefit of metal value recovery by subsequent hydrometallurgical process, a low iron recovery is preferred. Therefore, the optimum

Germanium recovery method from slag processing of complex

The slag after crushing and grinding is fed to autoclave leaching. The optimal conditions of the leaching process, contributing to the full opening of the slag and extraction of germanium and zinc in the solution are: the lye concentration 20 wt.%, process temperature 200÷220°With the ratio of the phases W:t=5, time 60-90 minutes.

Making Vanadium Vanitec

Vanadium bearing coproduct slag is generated during steel production from iron sands in New Zealand in a process similar to the South African process. The iron from these operations contains about 1.5% vanadium which is removed as slag by low temperature treatment with oxygen.

Iron processing Britannica

Iron processing, use of a smelting process to turn the ore into a form from which products can be fashioned.Included in this article also is a discussion of the mining of iron and of its preparation for smelting. Iron (Fe) is a relatively dense metal with a silvery white appearance and distinctive magnetic properties. It constitutes 5 percent by weight of the Earth’s crust, and it is the ...