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
Community limestone crusher smelting waste slag removal
Utilization and detoxification of gypsum sludge by replacing
2023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 2018年11月7日 Slag in ironmaking and steelmaking processes has several metallurgical functions such as preventing contamination by atmosphere, providing thermal insulation, and Treatments and Recycling of Metallurgical Slags IntechOpen2016年7月29日 Copper slag originating from the copper smelting industry is worthy of particular attention due to its massive generation and enrichment of multiple valuable metals One of the Slag Metallurgy and Metallurgical Waste Recycling JOM2023年11月20日 The researchers have compared the slagbased ballast with standard ballast (granite ballast, limestone ballast) and found that the slagbased ballast has higher shear A Review on Environmental Concerns and Technological
Comprehensive review on metallurgical recycling and cleaning of
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 2022年11月1日 By melting reduction modification technology, it effectively extracts the iron element existing in the waste slag to form high valueadded iron and steel productsLife cycle assessment of melting reduction treatment for iron and 2023年3月6日 The study revealed that ferrous slags are more effective in removing a wide range of toxic chemicals than nonferrous smelter slags It investigated the necessary improved (PDF) Recycled Smelter Slags for In Situ and Ex Situ Water and This current study investigates the beneficial utilization of the crushed waste furnace steel slag as a replacement for natural sand in concrete interlocking paving block units’ production for Solid waste management in developing countries: Reusing of steel
Highpurity recycling of hematite and Zn/Cu mixture from waste
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 2020年9月24日 Ladle furnaces at Evraz Nizhnii Tagil Iron and Steel Works OJSC produce over 90,000 metric tons of slag per year As this slag cools, it turns into a finegrained powder; if the powder cannot be sold, it is temporarily stored until it can be disposed of [1] We have considered producing easily used flux sinter from the slag generated during ladle processing of steel LadleFurnaceSlag Reprocessing at Evraz Nizhnii Tagil Iron and 2024年7月21日 Request PDF Simultaneous Removal of NOx and SO2 from Smelting Flue Gas Using Thermally Modified Copper Slag: Factor Optimization via Response Surface Methodology In this study, we prepared the Simultaneous Removal of NOx and SO2 from Smelting Flue Gas 2022年8月1日 Removal of arsenic in acidic wastewater using Lead–Zinc smelting slag: From waste solid to Asstabilized mineral Author links open overlay panel Yongkui Li, Xianjin Qi, Guohua Li, Xiaoxu Duan, Nina Yang Selfenhanced and efficient removal of arsenic from waste acid using magnetite as an in situ iron donator Water Res, 157 Removal of arsenic in acidic wastewater using Lead–Zinc smelting slag
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 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 2022年4月1日 DOI: 101016/jemosphere2022 Corpus ID: ; Removal of arsenic in acidic wastewater using LeadZinc smelting slag: From waste solid to Asstabilized mineral @article{Li2022RemovalOA, title={Removal of arsenic in acidic wastewater using LeadZinc smelting slag: From waste solid to Asstabilized mineral}, author={Yongkui Li and Xian Removal of arsenic in acidic wastewater using LeadZinc smelting slag 2023年11月1日 Copper Smelting Slag (CSS) is a common mining industrial waste, which is mainly produced by concentrating, roasting, and smelting nonferrous ore (Piatak et al, 2015) Since CSS is enriched in Fe due to its production process, it has the potential to be used as a lowcost alternative to traditional ironbased catalysts for surface heterogeneous Fenton processesSynergy between fayaliteconstituted waste copper smelting slag
Highpurity recycling of hematite and Zn/Cu mixture from waste smelting
2020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 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 because when it ends up in the slag it can lead to failure of the TCLP Barium produces a deep green flame over the slag and matte, a stony appearance, and a large amount of matte Too much alkaline earths or too much zinc can “freeze” a blast furnace [2] A low silica highlime slag is a dangerous sign that the furnace is about to freezeA REVIEW OF SLAG CHEMISTRY IN LEAD RECYCLING2016年5月16日 In this study, aqueous mineral carbonation of Linz–Donawitz (LD) slag waste from Rourkela, Bokaro, and Tata steel industries was undertaken at a room temperature of 30°C and elevated CO2 (PDF) Sustainable Approaches for LD Slag Waste
How to Remove Slag From Steel Slag Removal
2021年12月7日 If you want to make your steel smooth and clean, you’ll need to remove the slag There are many ways to remove slag and dross, but not all of them are equally effective or efficient Chipping hammers and similar tools are Considering the overall slag forming system and reaction temperature, CaO, SiO 2 and Al 2 O 3 are the major components in the waste slag so only the iron oxides would be reduced After modifying the chemical composition of the slag, their approximate positions of various slags present in the CaO SiO 2Al 2 O 3Characterization and Recovery of Valuables from Waste Copper Smelting Slag2022年4月1日 Li et al [26] used LZSS (LeadZinc smelting slag) as an in situ Fe donor and neutralizer to remove arsenic from wastewater in the form of scorodite under 90 • C, and a 9842% removal efficiency Removal of arsenic in acidic wastewater using Lead–Zinc smelting slag Higharsenic wastewater has long been considered a major threat to ecological balance and human health because of its strong toxicity and high mobility Herein, an environmentally friendly process was proposed for As removal and fixation in the form of Asstabilized mineral, using Lead–Zinc smelting (LZS) slag as the in situ Fe donor, neutralizer, and crystal seedRemoval of arsenic in acidic wastewater using Lead–Zinc smelting slag
Highpurity recycling of hematite and Zn/Cu mixture from waste smelting
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 2021年12月1日 As an environmentally hazardous waste, the lead smelting slag was considered as a potential secondary resource of valuable metals (Zn, Pb, and Sn) if recycled In this study the removal mechanism and kinetics of Zn, Pb, and Sn from the lead slag by carbothermic reduction at 1423–1473 K were investigatedKinetics study of heavy metal removal from the lead smelting slag 2018年9月3日 Salt slag o f aluminum is hazard ous solid waste according to the Europ ean Catalogue for Hazardous Wastes Hence, recovery of aluminum not o nly saves the environment, but also has advantages o f Recovery of Aluminum from Industrial Waste (Slag) by Melting 2022年8月1日 Removal of arsenic in acidic wastewater using Lead–Zinc smelting slag: From waste solid to Asstabilized mineral Author links open overlay panel Yongkui Li The present study mainly focuses on investigating reaction behaviors of arsenic removal from LZS wastewater using LZS slag as in situ Fe source, neutralizer and putative Removal of arsenic in acidic wastewater using Lead–Zinc smelting slag
Recovery of copper from smelting slag by sulphation
2016年1月1日 In this work extraction of copper and iron from a reverberatory furnace slag was studied A twostep extraction procedure was followed The first step was roasting of the slag in the presence of 2018年2月5日 Piles of steel slag, a solid waste generated from the iron and steel industry, could be seen due to no utility found for the past century Steel slag has now gained much attention because of its new applications The properties of slag greatly influence its use and thus had got varied applications The chemical composition of steel slag varies as the mineral composition Review on the innovative uses of steel slag for waste minimization2023年4月18日 Specifically, 5 g of zinc slag reacted with copper smelting wastewater with an initial arsenic concentration of 6000 mg/L for 4 h resulted in an arsenic removal rate of 9965%, and the leaching Removal of arsenic from copper smelting wastewater Taking 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:
A Novel Process for the Treatment of CopperSmelting Waste
2018年6月28日 A novel process was proposed for the separation of Cu and As from Cusmelting waste acid (CSWA) This process includes three steps, namely, the oxidization of As via the addition of H2O2, the selective separation of Cu through the use of Na2S, and the removal of As via the synthesis of scorodite The CSWA was initially oxidized using H2O2 where the As(III) 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 The Site is the location of a former smelting facili ty Smelting is the process of extracting metals, such as lead or copper, from rock through high temperature melting American Smelting and Refining Company, Inc (ASARCO) operated a smelting facility at the Site from 1872 to 1971 Smelting produced a waste product called slag, which wasSelby Slag Remediation Project Department of Toxic Substances 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 Magnesium Slag Generated by Reduction Smelting Using Pidgeon Process
Clean strengthening reduction of lead and zinc from smelting waste 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 2023年4月18日 Acidic arseniccontaining wastewater from copper smelting poses a potential threat to human and environmental safety due to its high toxicity, acidity, high volumes, and difficulty to be processed and utilized This study proposed a technique to leach environmentally stable scorodite from wastewater using natural zinc slag as a solid iron source The leaching Removal of arsenic from copper smelting wastewater using zinc slag 2022年11月1日 China has the largest output of steel and iron in the world (Zhang et al, 2022)In 2021, China's average annual pig iron output arrived at about 869 million ton (Stewart et al, 2021) and crude steel arrived at about 103 billion tons (Zhao et al, 2022)Meanwhile, the output of steel solid waste keeps at a high level and generally the production of one ton steel will generate Life cycle assessment of melting reduction treatment for iron and 2024年7月5日 Using smelting technology to recover metals from slag is economically justified if the value of recovered metals exceeds a certain threshold per ton of slag treated (Mitrašinović Wolf, 2015) Various studies have shown that recovering metals from copper slag is economically feasible, with high iron recovery percentages and potential economic benefitsCopper Slag as a Source of Iron: An Overview SpringerLink
(PDF) Nickel Laterite Smelting Processes and Some
2019年9月3日 Industrially, the pyrometallurgical treatment of laterites is mostly accomplished with a wellestablished method, namely, the rotary kiln–electric arc furnace (RKEF) process, which includes 2018年12月1日 Increasing concerns about environmental issues have led to more attention being paid to the recycling of mining wastes and smelting byproducts In the present study, the utilization of gold tailings, waste limestone, red mud, and ferronickel slag was investigated for producing continuous glass fibersTo verify the applicability of the downdrawing process, the Applicability of gold tailings, waste limestone, red mud, and 2013年12月1日 Optimization of process for total recovery of aluminum from smelting slag 2 removal of aluminum sulfate December 2013 Environmental Engineering and Management Journal 13(1):714Optimization of process for total recovery of aluminum from smelting 2021年7月1日 The establishment of vegetation cover is an important strategy to reduce wind and water erosion at metal smelting waste slag sites However, the mobility of heavy metals in waste slagvegetation Effect of different direct revegetation strategies on the mobility of
Leaching Performance and Zinc Ions Removal from Industrial Slag
2020年11月16日 This study aims to investigate leaching characteristics of zinc slag according to leaching tests, including; TCLP (Toxicity Characteristic Leaching Procedure), SPLP (Synthetic Precipitation Leaching Procedure), ASTMD3987 (American Society for Testing and Materials), and TS EN124574 (Turkish Standards Institute) tests methods The present study describes 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) purificationHydrometallurgical stepwise recovery of copper and zinc from smelting 2024年11月1日 The utilization rate of SS exceeds that of LFS due to its lower basicity, although it remains considerably lower than the rates observed in developed countries in Europe and the United States, standing at approximately 30 % [4]Currently, the internal recycling of SS predominantly takes place within the smelting production process, serving purposes such as Recent research progress on recycling metallurgical waste slag 2020年10月16日 In view of the nonrenewable reductant resources and carbon neutralization in the process of copper slag cleaning in an electric furnace, this study proposed to use waste cooking oil as reductant to replace fossil energy Combined with the phase equilibrium theory and experimental results, the harm of excessive magnetite in the copper smelting slag to the Copper Smelting Slag Cleaning in an Electric Furnace by Using Waste
Bacterial community structure and diversity responses to the
2018年3月14日 This comparative field study examined the responses of bacterial community structure and diversity to the revegetation of zinc (Zn) smelting waste slag with eight plant species after 5 years The microbial community structure of waste slag with and without vegetation was evaluated using highthroughput sequencing The physiochemical properties of Zn smelting