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 ...
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 …
Nickel smelting slag contains valuable metals including nickel and copper. Failure to recycle these metals wastes resources, and disposal of nickel slag in stockpiles results in environmental pollution. …
Methods for metal recovery from solid/liquid waste streams are critically reviewed. ... Metallurgy are the most known and practically-used processes in industries, which mainly involves the extraction of metal from the ores and solid wastes. ... Utilization of unprocessed steel slag as fine aggregate in normal-and high-strength concrete. …
Li et al. proposed to control the basicity of molten slag to 1.6 (the mass ratio of CaF 2 /CaO is 0.1) for 30 min under nitrogen protection at 1575 °C, the iron recovery rate in the copper slag is 89.28%, the sulfur content in the molten iron is 0.039%, and the phosphorus content is 0.087%, which effectively solves the problem of high sulfur ...
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 …
Gorai et al. [37] reviewed copper slag characterization and various processing routes comprising pyro and hydrometallurgical methods for metal …
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 …
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. …
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.
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-
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 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 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 …
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 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: ...
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 …
Copper slag's valuable metal, waste heat and material resource can be recovered comprehensively. Over the last decades, people paid too much attention on …
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 review article evaluated and summarized various extraction methods including magnetic separation, roasting, pyrometallurgical method, hydrometallurgical and bio hydrometallurgical technique to recover …
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 paper firstly reviews the main methods for the recovery of valuable metals from copper slag, such as beneficiation method, pyrometallurgical approach, …
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 ...
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 …
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 …
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.
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 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 …
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 …
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 …
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 …
Keywords Ferronickel slag · Metals recovery · Acidic leaching · Doehlert design Introduction Ferronickel (FeNi) slag is a by-product formed during fer-ronickel alloy production by pyrometallurgical processing of nickel laterite ores []. With the increase in demand for 1 metals and alloys in various industrial sectors, slag produc-
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, …
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 …
The research from Central South University presents a significant advance in metal recycling technology, particularly for copper, lead, and zinc recovery from …