The second factor is that metal recovery from slag must be low cost (Wu et al., 2010). ... of base metals and alloys from CS and CSFT through various metallurgical processes improves the economy of mining and metallurgy plants and reduces disposal costs. Download: Download high-res image (222KB) Download: ...
Valuable Recovery Technology and Resource Utilization of Chromium-Containing Metallurgical Dust and Slag: A Review. by. Ju Xu. 1,2,3, Mengke Liu. 1,2,3,*, …
This review article evaluated and summarized various extraction methods including magnetic separation, roasting, pyrometallurgical method, hydrometallurgical and bio hydrometallurgical technique to recover …
In this paper, the slag granulation and heat recovery options are reviewed and given a critical evaluation, aiming to provide a basis for future directions in slag …
Slags from Zn-Pb metallurgy are processed on an industrial scale using pyrometallurgical and hydrometallurgical methods, alongside which a number of experiments conducted to recover metals as efficiently as possible, including bioleaching experiments. ... lead; metal recovery; metallurgy; slag; zinc. Publication types Review …
With the aim of investigating deportments of precious metals in pyrometallurgical processing of waste electrical and electronic equipment, the distributions of selected precious metals (gold, silver, platinum, and palladium) between copper matte and three different silica-saturated slags (pure FeOx-SiO2, FeOx-SiO2-Al2O3, and …
The LIB recycling slag contains 8 wt% Li 2 O, while the Li 2 O of the Li-minerals varies between 1 and 6 wt%. Kunzite contains small amounts of K 2 O, Na 2 O, MnO and Fe 2 O 3 (~ 0.4 wt%), while hiddenite and lepidolite contain 3.2 wt% Fe 2 O 3 and 11 wt% (K 2 O + Na 2 O), respectively. The latter values are remarkably higher than those of other Li …
Dear Colleagues, Pyrometallurgical processes usually involve complex physical and chemical reactions between slag and molten metal. In the above process, both the properties of slag itself and the …
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.
Copper slag's valuable metal, waste heat and material resource can be recovered comprehensively. Over the last decades, people paid too much attention on …
Slag is a typical byproduct generated during high-temperature metallurgical processes. It must be treated appropriately to meet the increasingly strict environmental requirements and to realize the economic benefits.1,2 The present topic, "Slag Metallurgy and Metallurgical Waste Recycling," collects eight articles, which demonstrate the …
Chlorination roasting technology is a smelting process that uses the principle of chlorination metallurgy to recover valuable metals from solid waste. It has the characteristics of strong applicability of raw materials, high separation efficiency and good comprehensive recovery effect. ... steel slag, red mud, non-ferrous metal slag, fly ash ...
This study aims at recovering valuable metals from nickel slag by employing pyrometallurgical techniques. A large amount of slag is generated during the nickel matte smelting. Nickel slag contains valuable elements such as copper, nickel, and cobalt, which can be recovered. Disposal of this slag results in loss of resources and may cause …
This paper firstly reviews the main methods for the recovery of valuable metals from copper slag, such as beneficiation method, pyrometallurgical approach, …
Metalcess focuses on ore beneficiation, metallurgy, metals recycling.We works with the client for the whole metal lifecycle from ore extraction to recycling! ... > Slag/Dross Recovery > Metal Recycling > Metal Distillation Separation ; Service > Test and Analysis > Engineering Design & EPC; Equipment
The term "slag" is used for different materials which result from solidification of a melt.Sometimes it refers to pyroclastic rocks [], sometimes to ashes, e.g. from waste incineration, which have undergone sintering due to partial melting [], but mostly for pyrometallurgical residues which result from the reaction of slag-forming agents with …
Nickel is an important non-ferrous metal which is widely used in machinery, architecture, steelmaking, military, and other fields due to its physical and chemical properties [1,2,3].During the production of nickel, about 6–16 tons of nickel smelting slag is generated per ton of nickel produced [1, 4].The slag usually contains some valuable …
Journal of Sustainable Metallurgy (2024) 10:360–374 361 Introduction With the continuously increasing demand for copper in ... the efficient techniques for copper slag cleaning and recovery of its metal values []. Table 1 1 summarizes the recent studies [9, 11, 12, 14–29] on copper slag reduc-
The research from Central South University presents a significant advance in metal recycling technology, particularly for copper, lead, and zinc recovery from …
A wide variety of processes for the recovery of valuable metals from copper slag have been proposed, which can be ... on metals leaching Mining, Metallurgy & Exploration (2020) 37:1241–1251 1243 ...
The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China. 2. ... The pyrometallurgical process typically involves the carbon thermal reduction of stainless steel slag to recover its metal content. This process has the drawback of using more energy and producing more by …
The state of the art for the recovery of metals from steel industry by-products using hydrometallurgical processes is reviewed. ... BOF secondary-metallurgy slag (BOF SM slag), and (3 ...
Slags from Zn-Pb metallurgy are processed on an industrial scale using pyrometallurgical and hydrometallurgical methods, alongside which a number of experiments conducted to recover metals as efficiently as possible, including bioleaching experiments. ... Various other methods have also been developed to recover metals …
The silica gel can inhibit the recovery of metal while making metal difficult to separate from Si and causing filtration problems. This study proposed a two-stage …
applications in future slag metallurgy. After copper slag is generated, it is essential to characterize its properties in detail for subsequent treatment. In the third article, entitled ''Mineralog-ical Characterization of Copper Slag from Tongling Nonferrous Metals Group China,'' Tiejun Chun et al. investigated the mineralogical ...
Gorai et al. [37] reviewed copper slag characterization and various processing routes comprising pyro and hydrometallurgical methods for metal …
Journal of Sustainable Metallurgy - Large amounts of slag are generated during pyrometallurgical processing in copper production. ... In this work, four biochars were employed as fossil-free reducing agents to recover valuable metals from the slag. Reduction experiments were performed in a vertical furnace at temperatures 1250, 1300 …
Trans. Nonferrous Met. Soc. China 33(2023) 3847âˆ'3859 Synergistic recovery of copper, lead and zinc via sulfurizationâˆ'reduction method from copper smelting slag Qing-hua TIAN*, Zhong-chen LI*, Qin-meng WANG, Xue-yi GUO School of Metallurgy and Environment, Central South University, Changsha 410083, China Received 17 …
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, …
Three major lines for the treatment of jarosite waste have been proposed: (i) stabilisation to be used as landfill or component in e.g. road construction, (ii) pyrometallurgical smelting to produce an inert slag and recover some of the metal contents and (iii) finally various hydrometallurgical techniques for more complete recovery of the …
The BF slag is characterized by its high titanium content. Although some studies have used the BF slag to recover vanadium [14, 15], the results are still not very satisfactory, and in the typical BF slag, the vanadium concentration is often too low to be used as the feed for vanadium processing. Meanwhile, the molten metal undergoes to 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 …
Although researchers so far have mainly focused on PGM recovery from synthetic wastewaters using whole cells or products of microorganisms [15, 27], a few studies have used real wastewater.Two studies reported the Pd recovery from metal refining [28] and catalytic converter production [29] waste streams by reductive …
A wide variety of processes for the recovery of valuable metals from copper slag have been proposed, which can be summed up in three types: pyrometallurgical, …
The recovery of copper and cobalt from ancient copper slags from the Küre region of Turkey was investigated. A fayalitic-type of ancient copper slag containing 1.24% Cu, 0.53% Co and 53.16% Fe were subjected to an experimental study. Two different routes were followed to recover the metal values. The first route was roasting the slag …
The steel industry, in accordance with the momentum of greener industry, has welcomed the changes and is actively pursuing that objective. One such activity is the commitment to energy recovery from by-products such as slag since the average energy content of ferrous slags is around 1 to 2 GJ/tslag. The recovered energy could, then, be …
Heat recovery from slag is a topic of research interest since at least the 1980s . Different concepts have been tested and developed since then, but none has reached industrialization yet. ... The abbreviations stand for blast furnace, basic oxygen furnace, electric arc furnace, ladle metallurgy furnace, and hot metal desulfurization. …
In this paper, a new reduction smelting technology for the extraction of iron and alumina from IRB, RM, and FA is proposed based on the technology platform of "Slag Metallurgy, Mineral Recycling, and Resource Recovery". For the first time, molten steel slag (SS) was used in the alumina extraction process, which not only recovered the heat ...
Subsequently, the slag sample was subjected to bio-leaching by Acidithiobacillus ferrooxidans bacterium for recovery of the metal values. Flotation batch experiments were conducted in 1 L scale Denver flotation cell and during the process, about 37.90% of silica and 22.82% alumina were removed from the slag sample.
Extensive researches on slag reduction for recovery of valuable metals and oxide materials from metallurgical slags and other wastes using a DC furnace with a hollow electrode have been conducted in 2 major EU projects with close cooperation between MEFOS, FEhS and CRM. Steel slags and other residues were introduced into the …