Control of Copper Content in Flash Smelting Slag and the Recovery …
To determine slag properties and the factors influencing these properties for optimization of operating conditions in the copper flash smelting process, the composition and microstructures of the quenched smelting and converting slags have been analyzed. Thermodynamic software FactSage 8.2 has been used to investigate the effects of …
Geochemical Characterization of Iron and Steel Slag and Its …
Modern iron and steel slag samples generally had SPLP leachates with higher pH, alkalinity, and hardness compared to the slag from the legacy sites, except for the iron granulated slag (USSFegran) from Gary Works. The SPLP leachate chemistries were consistent with groundwater sampled from slag-affected aquifers in the Chicago …
A comprehensive review on the recovery of copper values from copper slag
Fan et al. [123] presented a review of various processes, such as pyrometallurgy, hydrometallurgy and beneficiation processes, for iron recovery and slag cleaning. Tian et al. [ 94 ], Phiri et al. [ 70 ], and Zhou et al. [ 118 ] summarized various physical and chemical processing techniques for extracting and recovering Cu from the …
Recovery of iron from copper slag using jatropha oil as a …
Recovery of iron from copper slag using jatropha oil as a green reductant: Investigation of pyrolysis analysis, reaction kinetic and artificial neural network model prediction ... The experimental setup mainly comprises an SP-25TC-type induction heating machine, temperature control system, water cooler, vacuum pump, nitrogen bottle, …
A Review on Environmental Concerns and Technological …
The iron recovery can rise to 45% for 10–20 mm particles and 75–80% for micron particle size of iron of steel slag . The addition of screening equipment by Lan …
Dry magnetic separation technology for the recovery of iron …
DOI: 10.30765/er.40.1.02 Corpus ID: 212698142; Dry magnetic separation technology for the recovery of iron minerals in fine-grained steel slag @article{Shi2020DryMS, title={Dry magnetic separation technology for the recovery of iron minerals in fine-grained steel slag}, author={Liang Chang Shi and Nan Sheng Wang and …
(PDF) Recovery of iron from copper slag
It provides enclosed equipment, eliminates dust and flue gas from the furnace and argon gas was charged into the heater box to maintain an inert atmosphere. ... Hwang, Hyun-Mook. Choi, A Study on the Recovery of Iron from Copper Slag with Temperature, International Journal of Applied Engineering Research, Number 2, 977-982 (2018). [7] …
Processing and Reusing Technologies for Steelmaking Slag
on and sales. status, processing and reusing technologies of BOF steelmaking slag are mentioned.1. IntroductionIron and steel ("Iron/steel") slag is a by-product of manufactur …
Basic Oxygen Steelmaking Slag: Formation, …
Basic oxygen steelmaking (BOS) slag, a product of hot metal element (e.g., Si, Mn, Fe, P) oxidation and flux (e.g. lime, dolomite) dissolution, plays a critical role in the production of high-quality crude steel, although its …
Recovery of Pig Iron from Copper Smelting Slag by Reduction Smelting
Copper slag is a by-product obtained during smelting and refining of copper. Copper smelting slag typically contains about 1 wt.% copper and 40 wt.% iron depending upon the initial ore quality and ...
Efficient separation of iron elements from steel slag based …
The experimental equipment and steps are shown in Fig. 1. 100 g of slag powder was weighed and placed in a magnesium oxide crucible.It was then placed in a muffle furnace (MoSi 2 resistance heating) at 1500 °C for 90 min, cooled to 1350 °C at a rate of 1 °C/min and held for 90 min, cooled to 1100 °C at 1 °C/min, then cooled to 800 …
Minerals | Free Full-Text | Increase in Recovery …
This article presents the results of research aimed at optimizing the process of recovery of valuable components from ash and slag waste from thermal power plants. In this work, both experimental …
Iron Recovery Technology of Red Mud—A review
RM (red mud), which comes from the Bayer process, has a huge annual output and is harmful to the environment. Because of the high iron content in RM, the process of iron recovery from RM can reduce the amount of RM well and create economic benefits, so it is a promising process. The paper focuses on the review on the research …
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 …
Recovery of Iron from Lead Slag with Coal-Based Direct …
Iron recovery from a lead slag in Henan province was carried out with the technique of coal-based direct reduction followed by magnetic separation. Scanning electron microscopy (SEM) was used to investigate the transformation of iron-containing minerals and the particle size of metallic iron generated by coal reduction. The results …
Separation and Recovery of Rare Earths and Iron from …
NdFeB magnet scraps contain large amounts of iron, which poses challenges in recycling and greatly hinders the recovery of rare earths through direct hydrometallurgical treatment. To address this issue, we conducted tests using a flash furnace to explore the low-temperature reduction behavior of NdFeB magnet scraps …
A Review on Environmental Concerns and Technological …
The iron recovery can rise to 45% for 10–20 mm particles and 75–80% for micron particle size of iron of steel slag . The addition of screening equipment by Lan et al. [ 52 ] further improved the mechanical process by mapping sample size with the screening equipment's help.
Metals | Free Full-Text | Optimization of Iron Recovery from BOF Slag
The most suitable magnetic field intensity is 75 mT, the magnetic material yield is 46.00%, the iron grade is 29.10%, and the iron recovery is 64.12%. Compared with the initial steel slag, the iron grade increased by 8.22%, and the iron recovery increased by 46.38% compared with the direct magnetic separation without oxidation.
Recovery of Iron, Chromium, and Nickel from …
This paper reports the recoveries of iron, chromium, and nickel from pickling sludge using coal-based smelting reduction. The influences of slag basicity (CaO/SiO2, which is controlled by high phosphorus oolitic …
(PDF) Recovery of Iron from Copper Slag Using Coal-Based …
powder with an iron grade of 90.35% was obtained, and the iron recovery rate was 89.70%. A recent paper showed that the fayalite in the copper slag could be reduced by walnut shell char .
A critical review on metallurgical recovery of iron from iron …
Fig. 2 illustrates the iron ore beneficiation process, particularly magnetic separation, resulting in the generation of inevitable tailings. Due to the characteristics of iron ores and the conditions during beneficiation, it is inevitable that approximately 2.5–3 tons of IOTs are generated for every 1 ton of iron ore concentrate produced [7].In 2019, …
A Thermodynamic and Experimental Assessment of the Recovery …
With the increases in the costs of iron and copper ores, the incongruity between the significant imports of these ores into China and the ongoing accumulation of unused copper slag has greatly increased. Even so, there are few low-value methods for the utilization of copper slag. The present work demonstrates the processing of this …
A critical review on metallurgical recovery of iron from iron …
Fig. 2 illustrates the iron ore beneficiation process, particularly magnetic separation, resulting in the generation of inevitable tailings. Due to the characteristics of …
Purification and Recovery of Hot-Dip Galvanizing …
The elimination and retrieval of slag produced during the hot-dip galvanizing process are crucial in reducing plating defects and enhancing economic efficiency. Hot-dip galvanizing slag can be …
Recovery of Pig Iron from Copper Smelting Slag by …
It provides enclosed equipment, eliminates dust and flue gas from the furnace and argon gas was charged into the heater box to maintain an inert atmosphere. ... Hwang, Hyun-Mook. Choi, A Study on the Recovery of Iron from Copper Slag with Temperature, International Journal of Applied Engineering Research, Number 2, 977-982 (2018). [7] …
The recycling and reuse of steelmaking slags — A review
Slag is a mainly non-metallic by-product that is made up of silicates, alumina silicates, calcium aluminum silicates, and iron oxides (Joulazadeh and Joulazadeh, …
RECOVERY OF PIG IRON FROM COPPER SMELTING …
1794 2. Experimental method 2.1. Experimental material In this study, the waste copper slag from G Company was used. The slag used in this study is a cooling slag, which has
Extraction and separation of copper and iron from copper smelting slag
Copper is an important metal widely used in electrical, light industry, machinery, construction, national defense and other fields because of its excellent ductility, conductivity and thermal conductivity (Gbor et al., 2000; Guo et al., 2018b; Potysz et al., 2015).Iron ore is the supporting resource of China's iron and steel industry, which is a …
Precise recovery of highly-purified iron phosphate from …
Different decommissioned lithium iron phosphate (LiFePO 4) battery models and various recycling technologies resulted in lithium extraction slag (LES) with multiple and complex compositions, necessitating ongoing experimentation and optimization to recover iron phosphate (FePO 4).This work proposes a one-step precise selective precipitation …