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
Chengdu Jiayi limestone crusher smelting waste slag cleaning
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Resource utilization strategy of Febearing smelting slag in China:
This paper identifies the sources and hazards of ironbearing smelting slag, delves into resourceful strategies for its comprehensive utilization, such as metal recycling technology and 2021年5月1日 To decrease the copper loss, a cleaning furnace (eg electric slagcleaning furnace, rotary slagcleaning furnace) is applied after the pyrometallurgical process, followed Comprehensive review on metallurgical recycling and cleaning of 2008年4月1日 In the present work, a pressure oxidative acid leaching was used to clean up a waste smelter slag with low base metal contents of ∼1% Ni and Cu, ∼02% Co from a Cleaning of waste smelter slags and recovery of valuable metals by 2004年1月1日 Reduction of copper oxide is an important step of metal recovery and slag cleaning in copper production This can be achieved by slag treatment with injected reducing (PDF) Recycling and environmental issues of metallurgical slags
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Current Development of Slag Valorisation in China Waste
2014年2月19日 In China, different methodologies are used to granulate the BF slags These mainly include INBA [2], TYNA [3], SGMTC, and Jiaheng processes These processes involve 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 2021年1月28日 Details of the mainstream and recently developed routes for metallurgical recycling and further cleaning of copper slag are also summarised, such as flotation, leaching, Comprehensive review on metallurgical recycling and cleaning of 2019年5月23日 Steel slag is the waste generated in the steelmaking process and includes ferric oxide and the impurities of some infusible matters It is the byproduct when slagforming Comprehensive Utilization Technology of Steel Slag
Cotreatment of Waste From Steelmaking Processes: Steel Slag
2020年10月15日 Capturing CO 2 by steel slag (SS) via mineralization is regarded to be an excellent choice due to the high basicity of the slag In this paper, recent research on the steel 2021年12月1日 The typical process steps in the pyrometallurgical processing are smelting, converting, firerefining and anode casting followed by tankhouse electrorefining to copper Comparison of environmental performance of modern copper 2019年7月1日 Waste engine oil (WEO), as a waste resource, has not been fully exploited Using WEO as a reductant for copper slag cleaning is quite meaningful Fe3O4 is an important element in copper slag cleaningReduction of Copper Smelting Slag Using Waste Cooking OilINNOVATIVE TECHNOLOGIES FOR COPPER SMELTING AND ELECTRIC SLAG CLEANING AND MATTE SETTLING FURNACES A Esterhuizen, *H Joubert, S Essack, and N Fowler TENOVA PYROMETINNOVATIVE TECHNOLOGIES FOR COPPER SMELTING AND ELECTRIC SLAG CLEANING
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Schematic diagram of the slag cleaning electric
Experiments were carried out in a slag cleaning electric furnace to reduce magnetite in copper smelting slag using petrodiesel or biodiesel produced from waste cooking oil, and the reduction 2015年3月25日 Cleaning of high antimony smelting slag from an oxygenenriched bottomblown was tested by direct reduction in a laboratoryscale electric furnace The effects of added CaO, mass ratio of coal (experimental) to coal (theoretical) (ω) and the slag type on the reduction procedure were considered The contents of Sb and Au were investigated Iron contamination Cleaning of high antimony smelting slag from an oxygen 2012年9月21日 In the quest to achieve the highest metal recovery during the smelting of copper concentrates, this study has evaluated the minimum level of soluble copper in ironsilicate slags The experimental work was performed under slagcleaning conditions for different levels of Fe in the matte and for a range of Fe/SiO2 ratios in the slag All experiments were carried out under Minimization of Copper Losses in Copper Smelting Slag During Electric With Metso's Outotec Electric Slag Cleaning Furnace, the cleaning of smelting furnace slag is carried out using surface coke reduction in an electric furnace The circular or rectangular electric furnace is operated in batches and equipped with three or more Söderberg electrodesElectric Slag Cleaning Furnace Metso
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Recovery of iron and removal of hazardous elements from waste
Request PDF On Jul 1, 2016, Jung Ho Heo and others published Recovery of iron and removal of hazardous elements from waste copper slag via a novel aluminothermic smelting reduction (ASR) process 2008年9月1日 Experiments were carried out in a slag cleaning electric furnace to reduce magnetite in copper smelting slag using petrodiesel or biodiesel produced from waste cooking oil, and the reduction Cleaning of a copper matte smelting slag from a water2016年10月14日 Under the Al2O3FeOSiO2 ternary slag system, at a smelting temperature of 1450 °C, smelting time of 2 h, mass ratio of coke, pyrite, and CaO to waste catalysts of 16, 25, and 0%, respectively Cotreatment of waste smelting slags and gypsum wastes via 2009年5月30日 The lower w value of 256% yielded a recovery rate of less than 60% for copper and less than 50% for cobalt, and around 70% for zinc However, increasing w to 5% allowed the recovery of 70–90% for Cu, Co and Zn simultaneously after 30–60 min reduction of the molten slag After reduction, the cleaned slags contained only small amounts of copper and cobalt Cleaning of a copper matte smelting slag from a waterjacket
Technical Focus on DCarc Furnace Application to Waste Stream Smelting
2021年10月3日 Steady state dust concentration in a DC arc zone at different arc lengths (Reynolds, 2015) Fundamental process aspects arc length control In a DC furnace the HCCs, electrode, DCplasma arc, slag 2017年2月1日 Massive emissions of smelting waste slag (SWS) cause serious harm to environment because of including toxic metal such as zinc and lead Reductionvolatilization is considered as a effective Clean strengthening reduction of lead and zinc from smelting waste slag 2020年1月24日 Materials The sample was obtained from slag that was generated during the oxygen enrichment copper smelting process The chemical composition shown in Table 1 indicates that the Cu content was 1782% and the Fe 3 O 4 content was 129% Due to the fact that the copper slag was produced by the oxygen enrichment process, the copper and Fe 3 O Recovery of Copper from Copper Smelting Slag Using a Green 2021年5月11日 Practically, the matte grade is adjusted by the ratio of O 2 in the blast to concentrate feed rate, assuming a constant slag composition Due to the fact that the matte grade determines the extent of oxidation of Fe and S, it also determines the extent SO 2 evolution [], and it influences the partitioning of the elements between different phasesThermodynamic Analysis of Copper Smelting, Considering the Impact
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(PDF) Nickel Laterite Smelting Processes and Some
2019年9月3日 Nickel Laterite Smelting Processes and Some Examples of Recent Possible Modifications to the Conventional Route2019年8月1日 AbstractCleaning of high antimony smelting slag from an oxygenenriched bottomblown was tested by direct reduction in a laboratoryscale electric furnace The effects of added CaO, mass ratio of coal (experimental) to coal (theoretical) (ω) and the slag type on the reduction procedure were considered The contents of Sb and Au were investigated Iron Cleaning of high antimony smelting slag from an oxygen 2022年10月1日 Copper smelting slag usually contains 1–6 wt% copper, which can be recovered by pyrometallurgical and flotation processes However, the tailing slags still consist of 03–07 wt% Cu and 35 Advances in recovery of valuable metals and waste heat from copper slag 2018年6月15日 Experiments were carried out in a slag cleaning electric furnace to reduce magnetite in copper smelting slag using petrodiesel or biodiesel produced from waste cooking oil, and the reduction (PDF) Reduction of Magnetite from Copper Smelting Slag
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Sustainable Approaches for LD Slag Waste Management in Steel
2016年5月16日 Reduce, reuse, and recycle are important techniques for waste management These become significant for improving environmental and economic condition of industries Integrated steel industries are generating huge amounts of steel slag as waste through the blast furnace and Linz–Donawitz (LD) process Presently, these wastes are disposed by dumping in 2018年5月1日 Waste printed circuit boards smelting ash (WPCBsSA) is generated by the smelting process of waste printed circuit boards (WPCBs), which contains valuable metals, such as copper (Cu), zinc (Zn Diagnose for valorisation of reprocessed slag cleaning furnace 2014年5月3日 The utilization of solid waste is the challenge for the civil and environmental engineers to utilize the waste from different industry to excel the sustainable development, and in the same time, it is matching with the cost Use of waste copper slag, a sustainable materialTaking copper slag as an example, copper slag is a solid waste containing iron, lead, and zinc produced in the process of copper smelting, which is a typical nonferrous smelting slag Besides oxides of Ca, Mg, Si, and Al, copper slag also contains 20 %–40 % total iron (TFe) and a certain amount of lead and zinc, which has a high comprehensive utilization value ( Zhang et al, 2020 Resource utilization strategy of Febearing smelting slag in China:
Fluxing options in the directtoblister copper
2009年1月19日 Dissolution of copper in aluminabearing iron silicate slags in equilibrium with blister copper at 1300°C and P SO2 ≈1 atm; at 1% [S] alumina concentration is 35% (Al 2 O 3 )The use of an electric arc furnace for recovery of metal values from slag generated in a secondary copper smelter has been successfully demonstrated and commercialized Blast furnace slag containing about 15% Cu, 10% Pb, 35% Zn, 10% Ni, 40% FeO and 10 opt Ag was retreated to recover better than 75% of the metal values The addition of limestone and coke was required Development of Electric Furnace Slag Cleaning at a Secondary Maytham Mahmood Ali AlKhwarizmi Engineering Journal, Vol 14, No 3, PP 81 91 (2018) 84 21 Fluxing and Degassing of AluminumRecovery of Aluminum from Industrial Waste (Slag) by Melting 2002年11月1日 Slag cleaning is important from both an economical and environmental perspective Dump slags from copper smelting prove to be a valuable source of base metals, but the abundance of iron in the The role of slag modifiers on the selective recovery of cobalt and
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Slag cleaning reactor for metal recovery in copper production
2009年2月1日 A new intensive slag cleaning reactor can be used for recovery of ferroalloys, recycling of steel mill waste, and the reconditioning of waste deposits2020年6月3日 Introduction Smelting slag is a typical hazardous waste generated in the smelting and metallurgy industry 1, 2Slag contains high concentrations of heavy metals, such as Cu, Zn, Cr and Ni, which are harmful if released into the environment 3In China, smelting slag is disposed of as an environmental priority pollutant, wherein the slag is generally stabilized with cement Highpurity recycling of hematite and Zn/Cu mixture from waste smelting 2023年8月28日 During the pyrometallurgical extraction of copper, a significant source of copper loss is discarded slag In 2021, the global smelter production of copper reached 214 million tons [], and the slag produced was approximately 22 tons per ton of copper []The most considerable amounts of slag come from the smelting furnace and often have a copper content between 1 Improved Settling Mechanisms of an Industrial Copper Smelting Slag 2021年2月26日 A potential industrial wastewaste cotreatment process was proposed and verified for the recovery of the valuable metals Co, Ni, and Cu from copper smelting slag by utilizing high temperature SO2 A potential industrial waste–waste cotreatment process of
Slag Cleaning of Outokumpu DirecttoBlister Flash Smelting Slags
2007年1月1日 Outokumpu DirecttoBlister Flash Smelting is currently in operation in two smelters, a third one is under construction and a fourth one is in the design phase The two smelters in operation are the Glogow 2 smelter of KGHM Polska Miedz SA in Poland and the Olympic Dam smelter of BHP Billiton in Australia The Outokumpu DirecttoBlister smelter of 2020年6月2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 an acid solution Highpurity recycling of hematite and Zn/Cu mixture 2016年2月29日 In general, slag from smelting process arises from extraneous materials such as rust and oxides; oxidation of elements in the charge (eg iron, copper, zinc); residues from fuels; fluxes employed in the process (silica, Gold Smelting Refining Process 911Metallurgist2021年3月16日 By Alton Tabereaux, Contributing Editor Spent potlining (SPL) disposal is one of the largest environmental waste management challenges confronting worldwide primary aluminum smelters due to its toxicity The International Aluminium Institute (IAI) asserts that 16 million tons of SPL were generated from primary aluminum production in 2019,1 making it the The SPL Waste Management Challenge in Primary Aluminum
(PDF) Mining and metallurgical wastes: a review of
2018年3月12日 Mining and metallurgical processes produce significant amounts of waste In South Africa, mining and metallurgical wastes constitute one of the biggest challenges to the environment2023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 challengingUtilization and detoxification of gypsum sludge by replacing limestone 2013年11月14日 In a typical pyrometallurgical process for producing copper from copper concentrate, approximately 2 tons of waste copper slag per ton of produced copper is generated (Gorai et al, 2003, Shen and Forssberg, 2003, Shi et al, 2008)Currently, about 2 million tons of waste copper slag is produced each year in Korea (Korea Zinc Co, Ltd, 2012, LSNikko A physicochemical separation process for upgrading iron from waste An investigation of slag bath temperatures ranging from 1150 to 1350°C showed that, to attain the desired throwaway slag, the cleaning would have to be carried out of1350°C For example, slag treated at 1150°C still contained 05% Cu and 25% Zn, but treatment at 1350°C resulted in slags containing only 03% Cu and less than 15% ZnDevelopment of Electric Furnace Slag Cleaning at aSecondary
Reduction of copper smelting slag using waste cooking oil
2019年11月1日 Currently, waste cooking oil (WCO) as a renewable energy is not widely utilized Copper slag cleaning in an electric furnace is a critical process for reducing the excessive magnetite (Fe 3 O 4) present in the copper slag to decrease the slag viscosity, which can promote the sedimentation of matte/copper in the slag, thus reducing the copper content of slagPDF On Sep 1, 2023, Ying Cao and others published Synergy between fayaliteconstituted waste copper smelting slag and hydroxylamine: An efficient combination for construction and application of Synergy between fayaliteconstituted waste copper smelting slag