MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
Method for treating slag from smelting of urban limestone crusher in Anhui Province
Research articleCotreatment of gypsum sludge and Pb/Zn
2016年10月1日 This study presents a method for the stabilization of arsenic sludge that uses a slag based curing agent composed of smelting slag, cement clinker and limestone The 2020年6月3日 In this study, Zn/Cubearing smelting slag was recycled via an integrated acid dissolution and hematite precipitation method The slag was dissolved in nitric acid to generate Highpurity recycling of hematite and Zn/Cu mixture from waste 2020年11月1日 In this work, a hydrometallurgical stepwise method, involving leaching in a ZnCl 2 –NH 4 Cl solution system, copper removal by ECS method, deep purification with zinc Hydrometallurgical stepwise recovery of copper and zinc from Thus, replacing limestone with gypsum sludge and returning it to the smelting furnace as flux can utilize the calcium source in the slag, while recovering Pb, Zn, and other metal ions [16−17] It Utilization and detoxification of gypsum sludge by replacing
Cotreatment of copper smelting slag and gypsum residue for
A green method to clean copper slag and rapidly recover copper resources via reductionsulfurizing smelting and supergravity separation at low temperature Innovative methodology 2023年4月21日 Within this paper, application options, the environmental behavior, and ways to treat copper slag in order to remove hazardous and recover valuable metals are critically Sustainable and Comprehensive Utilization of Copper Slag: A2022年7月1日 This study proposed a green method to clean the copper slag and simultaneously recover copper resources via reductionsulfurizing smelting and supergravity separation at a A new method for continuous recovery of fine copper droplets 2017年2月8日 Three key factors affecting flotation were ascertained, namely, grinding fineness, the collector and the pH value, while the recovery of Cu estimated by ICP and XRFThe Recovery of Copper from Smelting Slag by Flotation Process
Recovery of Valuable Metals from Nickel Smelting Slag Based on
2021年9月19日 Through full understanding of the process mineralogy of nickel slag, this paper introduces reduction and sulfurization modification to achieve efficient recovery of valuable 2023年1月11日 In the copper flash smelting process, the copper content in the slag can be decreased by decreasing the Fe/SiO 2 ratio and temperature In pyrometallurgical slag Control of Copper Content in Flash Smelting Slag and the MDPI2017年2月8日 Materials The smelting slag used in this study was obtained from a copper plant in China Mineralogical analysis, performed using scanning electron microscope (SEM) and energy dispersive Xray spectroscope (EDS), polarizing microscope and Xray diffraction (XRD), indicated that fayalite (Fe 2 SiO 4) and magnetite (Fe 3 O 4) phases were major components The Recovery of Copper from Smelting Slag by Flotation Process2019年7月15日 Manganese ore smelting is reviewed in terms of processing parameters such as feed material particle sizes, energy input methods, heat transfer modes, smelting mechanisms, experimental findings on A Review of Ore Smelting in High Carbon
Advances in recovery of valuable metals and waste heat from copper slag
2022年10月1日 Each slag composition requires an appropriate treatment method for further metal recovery or for utilization as construction material [27,28] Thermal reduction of copper smelter slags with solid 2024年7月5日 In the reduction treatment for copper slag, carbonaceous materials are employed alongside additives for promotion in carbothermic reduction roasting or smelting processes (Łabaj et al, 2021) Biomass, such as pine sawdust, corncob, straw, and walnut shells, emerges as a renewable energy source with potential advantages over conventional coal (Zuo et al, 2016 )Copper Slag as a Source of Iron: An Overview SpringerLink2022年9月25日 Compared with other copper smelting slag treatment technologies such as acid leaching and smelting, microwave fluidization roasting technology does not produce greenhouse gases such as carbon dioxide, nor does it have the characteristics of chemical corrosion and high energy consumption, so it has the advantages of clean and efficient (Yuan et al, 2022)Extraction and separation of copper and iron from copper smelting slag 2022年7月1日 This study proposed a green method to clean the copper slag and simultaneously recover copper resources via reductionsulfurizing smelting and supergravity separation at a low temperature, providing scientific guidance and application prospects for the synergistic treatment of hot copper slag with waste coke and gypsumA new method for continuous recovery of fine copper droplets
Hydrometallurgical stepwise recovery of copper and zinc from smelting
2020年11月1日 A new process for recycling zinc and copper from the smelting slag of waste brass was investigated in this study The zinc and copper present in the smelting slag were dissolved in a ZnCl 2 –NH 4 Cl solution system To recycle copper, the lixivium was purified by a novel method termed as electrochemistry and chemistry synergetic (ECS) purification2023年3月1日 Nonferrous metals are indispensable basic materials, and they are strategically important for the national economy of China (Song et al, 2019; Xue et al, 2022), which greatly increases their demand and leads to increasing mining and smelting of metal oresThe productivity of ten different nonferrous metals in China reached approximately 58 million tons Soil heavy metal pollution from Pb/Zn smelting regions in China 2020年3月31日 The direct reduction process is one of the solutions for the manufacturing of iron which is energyefficient and low in CO2 emissions Titanomagnetitetype iron sand is an important alternative Development of Smelting Reduction Ironmaking Process2019年4月9日 crusher, then the iron nugget and alumina slag were magnetically separated by the high strength roller dry magnetic separator (LONGi, Zhengzhou, China) with a magnet ic intensity of 4000 GsSemiSmelting Reduction and Magnetic Separation for the
Assessment of heavy metal pollution from a Fesmelting plant in urban
pollution in soils and sediments To test the efficiency of magnetic methods for detecting contaminates from a Fesmelting plant in Loudi City, Hunan Province (China) we investigated river sediments from Lianshui River Both magnetic and nonmagnetic (microscopic, chemical and statistical) methods were used to characterize these sediments2021年3月10日 As listed in Table 1, laterites mainly contain Fe, Mg, Si, and Al componentsTherefore, their smelting slag comprises MgO, SiO 2, and Al 2 O 3, irrespective of the iron oxidesThe phase diagram of a MgO–Al 2 O 3 –SiO 2 ternary system was first considered Fig 1 (a) shows that the lowest melting phase in this slag system is cordierite Control of slag formation in the electric furnace smelting of 2020年11月16日 Metals smeltingcollection method for recycling of platinum group metals Vapour treatment method against other pyroand hydrometallurgical processes applied to recover platinum from used auto Metals smeltingcollection method for recycling of 2015年8月15日 1 Introduction Lead and zinc are two important nonferrous metals with broad applications Both primary and secondary resources are exploited as raw materials for production of lead and zinc, which generates huge amounts of smelting slag (Agrawal et al, 2004, Liu et al, 2008, Ogundiran et al, 2013, US Geological Survey, 2014)In some developed nations, the Bioleaching mechanism of Zn, Pb, In, Ag, Cd and As from Pb/Zn smelting
Comparison of environmental performance of modern copper smelting
2021年12月1日 Generally, the processing was performed with similar assumptions than TSLS with PSC, but the tapping of matte and slag from the primary smelting furnace was done from separate tapholes Slag with iron to silica ratio 135 was transported to slow cooling while matte with 65% Cu was granulated Smelting slag was treated in a slag concentrator2024年7月23日 Lowcarbon smelting in large blast furnaces (BFs) is poised to be a pivotal elem The method of reducing energy consumption in large blast furnace smelting by lowsilicon Sunahara K, Nakano K, Hoshi M, et al Effect of high Al 2 O 3 slag on the blast furnace operations ISIJ Int 2008; 48: 420–429 Crossref Web of Science The method of reducing energy consumption in large blast 2023年8月1日 The slag sample was modified by heating in an electric furnace for 2 h in a nitrogen atmosphere and subsequently cooled slowly at a controlled rate to improve the liberation characteristics They used Scanning Electron Microscopy (SEM) to understand the effect of heat treatment on the slag sampleA comprehensive review on the recovery of copper values from copper slag2022年8月23日 The ratecontrolling steps for the reduction kinetics of average particle sizes 5, 10, 15, and 20 mm at 570, 700, 800, 900, and 1000 °C were studied after heat treatment of the orewood charcoal (PDF) An Overview of the ReductionSmelting Process of Iron
Synergistic recovery of copper, lead and zinc via sulfurization
2023年12月1日 Trans Nonferrous Met Soc China 33(2023) 3847−3859 Synergistic recovery of copper, lead and zinc via sulfurization−reduction method from copper smelting slag Qinghua TIAN*, Zhongchen LI*, Qinmeng WANG, Xueyi GUO School of Metallurgy and Environment, Central South University, Changsha , China Received 17 August 2022; accepted 4 2023年4月21日 Large amounts of copper slag are produced every year and major fractions of it are currently disposed, not withstanding the multiple ways the material can be used Application of the slag is often limited by the presence of hazardous elements and their leaching behavior so they can potentially pollute soil, surface water and underground water To remove such Sustainable and Comprehensive Utilization of Copper Slag: A2023年5月26日 Gypsum sludge refers to a hazardous solid waste produced by the nonferrous smelting industry, and its disposal and utilization are environmentally challenging To investigate the feasibility of replacing limestone with gypsum sludge for smelting slagging, the effect of gypsum sludge and smelting conditions on high lead slag reduction smelting was studied Utilization and detoxification of gypsum sludge by replacing limestone 2020年11月1日 In this study, the smelting slag of waste brass was sourced from a copper recycling company in Anhui Province of China The main chemical composition of the smelting slag as determined by Xray fluorescence (XRF; Axios mAX, PANalytical, Netherlands) is listed in Table 1The mineralogical compositions of zinc and copper in the smelting slag as determined Hydrometallurgical stepwise recovery of copper and zinc from smelting
A Study on Reduction of Copper Smelting Slag by Carbon for
2020年2月14日 Copper smelting slag is a solution of molten oxides created during the copper smelting and refining process, and about 15 million tons of copper slag are generated annually in Korea The oxides in copper smelting slag include ferrous (FeO), ferric oxide (Fe2O3), silica (SiO2 from flux), alumina (AI2O3), calcia (CaO) and magnesia (MgO) The main oxides in copper 2021年9月19日 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 Nickel slag recycling is important, and metals can be recovered from slag by flotation However, considering the complex forms in which valuable metals occur in Recovery of Valuable Metals from Nickel Smelting Slag Based on 2020年7月10日 On the basis of the above laboratorial experiments of reduction smelting and vacuum metallurgy, scaleup experiments were carried out 45 kg Kaldo smelting slag of copper anode slime was first treated by reduction smelting to form Pb–Bi–Ag alloy for 40min under 1350 °C with the addition of 10 wt% coke, 20 wt% limestone and 26 wt%iron powder, and then the A novel process for silver enrichment from Kaldo smelting slag 2024年2月7日 Reduction The reduction process for copper slag is typically followed by magnetic separation []Depending on the temperature and intensity of reduction, it can be classified as direct reduction, deep reduction, and smelting reduction []Commonly used reducing agents include coke, biomass carbon, and natural gas [31, 32]The reduction process converts Resource Utilization of Copper Slag with a Focus on Springer
(PDF) Evaluation of TitaniaRich Slag Produced from Titaniferous
2020年8月3日 Titaniumbearing magnetite ore is generically defined as magnetite with > 1% titanium dioxide (TiO2) and is usually vanadiumbearing The iron and titanium occur as a mixture of magnetite (Fe3O4 2021年12月23日 This paper presents observations and analyses on seven slag pieces from two thirdmillennium cal BC (Late Copper Age/Early Bronze Age) rock shelters in the Trentino, northeastern Italy: La Vela di Valbusa and the Riparo di Monte Terlago We review previous work on contemporary slags from the region and show that the smelting did not follow the wellknown The smelting of copper in the third millennium cal BC Trentino, 2022年8月1日 A cotreatment technology of copper smelting slag and gypsum residue has been proposed in the present study, and thermodynamic analysis and experimental work have been done to validate this process The present work provides new concepts for treating copper smelting slag and offers new methods for the treatment of sulfate solid wastesCotreatment of copper smelting slag and gypsum residue for 2024年4月26日 The converter is an indispensable key equipment in the steel manufacturing industry With the increasing demand for highquality steel, there is an increasing demand for monitoring and controlling the status of the converter during the smelting process Compared to other manufacturing industries, such as food processing and textile, converter steelmaking Digital twindriven smelting process management method for
Analysis of Lead Smelting Technology in the Early
2023年2月20日 To explore the source of Pb in Bronze Age artefacts from the Central Plains (Zhongyuan) in China, we investigated nonferrous minerals from the Qingyuan archaeological site in Yuanqu County near the Zhongtiao 2018年12月1日 Copper slag is a byproduct 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 Recovery of Pig Iron from Copper Smelting Slag by 2024年8月15日 The flotation process presents several benefits, such as its costeffectiveness, high efficiency in separation, and minimal environmental impact [17]These advantages contribute to its wide range of potential applications in the field of secondary resource recycling [18], [19], [20], [21]In China, the flotation process has been subjected to recover copper from the CSS Efficient recovery of copper from copper smelting slag by gravity 2024年7月6日 The purpose of this work is to obtain the optimum conditions for leaching the zinc contained in an industrial lead smelting slag In this type of slag, zinc oxide, sulfide, and ferrite are contained Zinc extraction from these compounds consists of using a single aqueous medium, where oxidant alkaline leaching with NaOH and NaClO was used The parameters evaluated Zinc Extraction from Primary Lead Smelting Slags by Oxidant
Assessment of heavy metal pollution from a Fesmelting plant in urban
2011年5月9日 To test the efficiency of magnetic methods for detecting contaminates from a Fesmelting plant in Loudi City, Hunan Province (China) we investigated river sediments from Lianshui River2022年7月14日 In order to give full play to the alkaline neutralization value of carbide slag and reduce the environmental hazards of carbide slag, it is of great practical significance to study the resource utilization of carbide slag The adsorption of sulfur compounds on carbide slag was studied in the laboratory, and the process parameters of carbide slag desulfurization were Desulphurization mechanism and engineering practice of carbide slag2020年3月1日 In this study, copper slag supported nanoscale zerovalent iron (nZVI/copper slag) adsorbent is used to reduce the concentration of As(ΙΙΙ) from an aqueous environment up to a permissible level Removal and Immobilization of Arsenic from Copper Smelting Wastewater 2023年9月10日 Lithiumion batteries (LIBs) are used as crucial energy storage components in automobiles, communications, and electronic devices (AlThyabat et al, 2013) due to their lightweight properties, high capacity, and long lifespan (Miao et al, 2022)However, the growing electric vehicle market is expected to result in a significant increase in spent lithiumion A novel method for recovering valuable metals from spent lithium
Magnesium Slag Generated by Reduction Smelting Using Pidgeon Process
2021年4月30日 As seen from the test results shown in Table 35, the fluorine in magnesium slag that is generated via the Pidgeon process seriously exceeds the standard limitThus, the slag cannot be landfilled directly because it will cause serious consequences Similarly, with reference to HJ/T2992007 “Solid wasteExtraction procedure for Leaching ToxicitySulfuric acid and