Green Steel
Tosyalı Harsco Environmental has started to operate in Algeria in 2022. Tosyalı Harsco is a joint venture between Tosyalı and Harsco Corporation (NYSE: HSC), specialized in metal recovery services and slag sales. Tosyalı Harsco has two …
Characterization, Concentration, and Speciation of Metal
The treatment of large amounts of copper slag is an unavoidable issue resulting from the high demand for copper during the global transition to a sustainable development path. Metal-rich copper slag might serve as a potential source of metals through secondary recovery. In this study, two copper slags (CS1 and CS2) with different metallurgical properties were …
Co-modification of BOF Slag and Copper Slag to Recover Valuable Metals
A novel co-modification method between BOF slag and copper slag is proposed for the effective recovery of valuable metals in the metallurgical slags. The co-modification reactions between the Ca-containing phases in BOF slag and fayalite in copper slag are discussed on the basis of thermodynamic analysis, and the co-modification effect on the phase reconstruction …
Recovery and Use of Blast Furnace Slag in the Field of …
In Algeria, the steel plant of El-Hadjar (Annaba), due to its activity generates a significant industrial waste (slag) which creates a storage problem and pollution. For industrial-
Turning waste into wealth: Synergistic recovery of metal from copper slag
A study published in Transactions of Nonferrous Metals Society of China detailing a novel method for the recovery of copper, lead, and zinc from copper smelting slag using a sulfurization-reduction approach.This innovation represents a significant stride in metallurgical waste management, with potential impacts on both industry practices and environmental …
Characterization and solidification of heavy metals in
Zinc-extraction kiln slag is a hazardous solid waste rich in heavy metals. It is a great challenge to utilize it economically and harmlessly. This study aims to convert this zinc …
Slag recycling
There are only two steel companies, POSCO and , with POSCO having a market share of 76 % in blast furnace slag production in 2011 and a share of 73.3 % in 2017. Slag imports accounted for 5.2 % of the total in 2017. The 2015 recovery quantities for blast furnace slag are shown in Fig. 15.
Historical Lead Smelting Slag Harmlessness and …
Metals Recovery: A Co-Treatment of Lead Slag and Zinc-Bearing Material in Rotary Kiln Xuekui Niu 1,2, Minting Li 2,*, Hongbin Wang 1,*, Liping Ma 1, Shuting Wang 3, Tao Zhou 3 and Wei Wang 3
Development of Iron Recovery Technique from …
Development of Iron Recovery Technique from Steelmaking Slag by Reduction at High Temperature Kenji NAKASE,1)* Akitoshi MATSUI,2) Yoshie NAKAI,1) Naoki KIKUCHI,3) Yasuo KISHIMOTO4) and ... The slag and metal in the samples after the experi-ment were separated magnetically, and their weights were measured and chemical compositions were analyzed.
Sustainable and Comprehensive Utilization of Copper Slag: A …
Metal Losses to the Slag in Smelting and Converting. 80% of the copper produced from ores worldwide originates from sulfide ores. The copper concentrate which results from flotation of the ore is typically smelted and converted to blister copper [].During smelting S and Fe are oxidized, where SiO 2 is added to form a liquid ferric or ferrous silicate slag.
Efficiency of incorporating Algerian ground granulated blast …
One such type of by-product is ground granulated blast furnace slag (GGBFS) which is produced from the iron-making process. In Algeria, GGBFS is exclusively produced …
(PDF) Metallurgical Processing Strategies for Metals Recovery …
for recovery of metal from Ni con verter slag. The reduction processes were car-ried out in electric furnace containing corundum (Al 2 O 3) crucibles t o melt the.
New EAF Slag Characterization Methodology for Strategic Metal Recovery
The grown demand of current and future development of new technologies for high added value and strategic metals, such as molybdenum, vanadium, and chromium, and facing to the depletion of basic primary resources of these metals, the metal extraction and recovery from industrial by-products and wastes is a promising choice. Slag from the …
Recovery and Use of Blast Furnace Slag in the …
This study investigated the potential use of Zerdezas dam Calcined Sediments (CS) and El-Hadjar Blast Furnace Slag (GGBS) from northern Algeria as a partial replacement of cement (C) in normal...
Pyrometallurgical Reduction of Copper Slag with Biochar for Metal Recovery
The recovery of metals from copper slag using biochar was investigated at three different temperatures from 1250 to 1350 °C. Each experiment was carried out for 60 min. The samples were molten at the reduction temperatures and solidified after quenching. SEM micrographs of polished sections show that metal alloy was generated in each temperature.
Recovery of valuable metals from copper slag
metals from copp er slag have been prop osed, which can be summed up in three type s: pyrometall urgical, hy drometallu r- gical, and pyro-h ydrometa llurgica l processes.
Metal Recovery from Steelmaking Slag
Two different methods, direct acid leaching and acid baking followed by hot water leaching were used for recovering Cu and Co from the slag, and the optimum leaching conditions were found to be a leaching time of 2 h, acid concentration of 120 g L-1, and temperature of 60°C.
Two-stage method recovery of metals from copper slag: …
The recovery of metal from copper slag is of great signi cance to the resource utilization of copper slag and the . sustainable development of copper smelting industry.
Recycling solutions for non-ferrous metals
The test confirmed high metal recovery rates and low emission levels (particularly for NO x). Furthermore, the SIS was also tested successfully in a range of 0–100 % with H 2 as fuel. ... The slag produced is further treated in a second electric furnace, which produces a sellable slag and a metal bullion. The metal bullion from both electric ...
The submerged arc furnace (SAF) State of the art in …
Theory of slag cleaning - parameters Two simultaneous physical and thermo-chemical phenomena for metal recovery: 1) Chemical reactions: [Fe 3 O 4] slag + CO = 3 [FeO] slag + CO 2
TMS International
TMS International is the North American leader in slag processing and metal recovery. Our pioneering technologies process slag, a product of steelmaking, into useful environmentally beneficial aggregate products. Applications include road construction, asphalt, ready-mix concrete, cement, railway ballast, mining, filtration and agriculture. ...
Waste to wealth: Recovery of value-added products from steel slag
Steel slag, a by-product generated during steel production poses a solid waste disposal challenge. The same slag contains valuables such as titanium, nickel, vanadium, iron, aluminum, silica among others. The extracted components can cause productive value addition in diverse realms like wastewater treatment to semiconductor devices.
Granulation and Heat Recovery from Metallurgical Slags
Conventionally, little chemical adjustments are made to the slag prior to its processing for subsequent use or disposal. However, recent attempts have looked into modifying the chemical composition of slag while hot, to render its chemistry and properties suitable for high-value products or recovery of minerals/metals from slag [11, 12].Nonetheless, the majority of …
Recovery and Use of Blast Furnace Slag in the Field of Road
In Algeria, the steel plant of El-Hadjar (Annaba), due to its activity generates a significant industrial waste (slag) which creates a storage problem and pollution. ... The recovery of blast furnaces slag is not currently subjected to national rules regarding the use and protection of the environment. Moreover, the public works management is ...
Recovery and Use of Blast Furnace Slag in the Field of Road
In Algeria, the steel plant of El-Hadjar (Annaba), due to its activity generates a significant industrial waste (slag) which creates a storage problem and pollution. For industrialized …
Efficient Recovery of Platinum Group Metals from Spent …
Spent automotive catalysts (SACs) are the most important secondary resource for platinum group metals (PGMs). Due to the complex physicochemical properties and low concentration of SAC, it is very difficult to recover Pt, Pd, and Rh. The technology of using smelting iron to recover PGMs has the advantages of a simple process and large-scale …
(PDF) Heat Recovery from High Temperature Slags: A
slag (BFS) per ton of pig iron produced and a steel furnace typically produces 0.10 – 0.15 ton of steel slag (SS) per ton of crude steel [10]. Using these ratios and data, it can be estimated ...
Waste to wealth: Recovery of value-added products from …
Possibility of recovery of rare earths from steel slag was analyzed. Cost benefit analysis and process design aspects have been discussed. Insights into new research …
An overview of recovery of metals from slags
Incineration slag is a relatively new ever-increasing slag. Over recent years, several studies have been reported on the treatment, utilisation and metal recovery from incineration slag, mostly in Germany and Japan (Kaulbarsch et al., 1997, Pretz and Meier-Kortwig, 2000, Schmelzer et al., 1996, Sakai et al., 2000).Incineration slag processing by mechanical …
An overview of recovery of metals from slags
By applying mineral processing technologies, such as crushing, grinding, magnetic separation, eddy current separation, flotation and so on, leaching or roasting, it is possible to …