2018 limestone crusher smelting waste slag treatment
Limestone Dissolution in Converter Slag: Kinetics and Influence of
During converter steelmaking process, fast dissolution of lime is conducive to rapid formation of 2018年2月5日 New approaches towards utilization of slag for waste management such as Review on the innovative uses of steel slag for waste minimization2018年11月7日 In this chapter, techniques for the treatment and recycling of metallurgical Treatments and Recycling of Metallurgical Slags IntechOpen2018年8月1日 Steel slag is the main waste product in the steelmaking process Because of Steel slag in China: Treatment, recycling, and management
Life cycle assessment of melting reduction treatment for iron and
2022年11月1日 The Melting Reduction technology of Iron and Steel Waste Slag completely 2018年2月5日 Firstly, the amount of waste slag to be disposed of is reduced; secondly, Valorization of Metallurgical Slag for the Treatment of Water 2024年10月10日 Utilizing industrial and urban solid wastes is crucial for developing low Limestone impact on properties, microstructure and CO2023年3月6日 Slags from the ferrous and nonferrous metallurgical industries have been used Recycled Smelter Slags for In Situ and Ex Situ Water and MDPI
Green and Efficient Utilization of Waste Ferricoxide Desulfurizer
2018年7月1日 During the smelting process, the soft melting of the burden drops and accumulates in the lower part of the furnace cylinder At the slagiron interface, the chemical reaction between the metal silicate from waste glass Two waste glass based solid sodium silicates (SSWG) with moduli Ms=SiO 2 /Na 2 O of 1 and 15 were thermochemically synthesized following [27] Table 1 Chemical composition by Xray uorescence and surface area of BFS, LSP and waste glass *LOI = Loss on ignition Oxide (wt%) BFS LSP Waste glass CaO 4202 492 1092 SiOLimestone impact on properties, microstructure and CO22024年10月10日 Utilizing industrial and urban solid wastes is crucial for developing lowcarbon cements This study proposes a novel method to integrate recycled glass and blast furnace slag (BFS) into alkaliactivated cements It also investigates the influence of pulverized limestone (LSP), as a readily available costefficient partial replacement for BFS The activators were Limestone impact on properties, microstructure and CO2018年8月1日 Steel slag is the main waste product in the steelmaking process Because of its chemical composition and technical properties, it can be reused as raw material in steel plants and can serve as a Steel slag in China: Treatment, recycling, and management
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 industrialization [12−14]; metal lead smelting often needs to add limestone flux for the smelting temperature and slag lead content to reduced [15] Thus, replacing limestone with gypsum sludge and returning it to the smelting furnace as flux can utilize the calcium source in the slag, whileUtilization and detoxification of gypsum sludge by replacing limestone 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 2016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
Cotreatment of waste smelting slags and gypsum wastes via
2017年1月15日 With a view to overcome disadvantages of traditional sulfurizing agent FeS 2, a new method involving slag cleaning technique and gypsum waste treatment technique, named reductivesulfurizing smelting process, was considered to treat smelter slags using gypsum waste to sulfurize and simultaneously recover valuable metals instead of FeS 2 and CaCO 32023年6月10日 Due to containing abundant FeO x, Si and trace heavy metals (Pb, As, Cr, Cd, etc), the disposal of nonferrous metallurgical waste slag (NMWS), such as copper slag, lead slag, zinc slag and nickel slag, has attracted more and more attentionWhen the NMWS is applied as raw material for preparing glassceramics, the heavy metals in NMWS could be well The pretreatment of nonferrous metallurgical waste slag and its 2012年5月23日 Recently, Park and Park investigated the vitrification of red mud using gold tailing and waste limestone to make glass ball by slag atomizing technique (SAT), which is a process where air jets are (PDF) A new approach to the recycling of gold mine tailings 2021年2月8日 Vegetation reconstruction was widely adopted for the waste slag site But the toxic elements may be made public from slag due to the organic acid secreted by plant roots, which will pollute the surrounding environment and harm human health The purpose of the study was to evaluate the harm of toxic substances released from zinc (Zn) smelting waste slag to Effects of Zinc Smelting Waste Slag Treated with Root Organic Acids
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 2017年1月1日 The results showed that copper and cobalt contents in cleaned slag could decrease averagely to 018% and 0071% respectively after cleaning 9199% Cu and 9294% Co and less than 3873% Fe were (PDF) Reductivesulfurizing smelting treatment of smelter slag 2018年10月20日 Green and efficient utilization of waste ferricoxide desulfurizer to clean waste copper slag by the smelting reductionsulfurizing process from the furnace before it cools down (Dirk et al, 2008, Guo et al, 2016a, Guo et al, 2016b; Guo et al, 2018 Cotreatment of waste smelting slags and gypsum wastes via Green and efficient utilization of waste ferricoxide desulfurizer to 2024年10月20日 The copper smelting industry generates copper slag as its primary solid waste (Tian et al, 2021) The pyrometallurgical process extracts approximately 80% of the copper (Zuo et al, 2022), producing 2–3 tons of copper slag for every 1 ton of copper (Qu et al, 2023)Highvalue terminal treatment: Utilizing copper slag heat in the
Effect of different direct revegetation strategies on the mobility of
2022年1月1日 There are challenges for phytostabilization of zinc smelting waste slag sites using a direct revegetation strategy due to adverse factors such as high contents of heavy metals, nutrient deficiency, low microbial activity, and poor physical structure and waterholding capacity limiting the establishment of vegetation on the waste slag sites (Luo et al, 2018)AlKhwarizmi Engineering Journal AlKhwarizmi Engineering Journal, Vol 14, No 3, September, (2018) PP 81 91 Recovery of Aluminum from Industrial Waste (Slag) by Melting andRecovery of Aluminum from Industrial Waste (Slag) by Melting 2018年4月20日 Download Citation Application of ferricsilicon coagulantflocculant of electric steel smelting slag for leachate treatment of communal solid waste landfills In the Russian Federation the most Application of ferricsilicon coagulantflocculant of electric steel 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 minimization
DEVELOPMENT OF TECHNOLOGY FOR RECYCLING COPPER SMELTING PRODUCTION WASTE
DEVELOPMENT OF TECHNOLOGY FOR RECYCLING COPPER SMELTING PRODUCTION WASTE 1251 Fig 1 Xray structural analysis of waste slag from the Balkhash copper smelting plant: ( ) Fe2SiO4 (fayalite); ( ) FeSiO3 (ferro silite); ( ) Fe(Ca)SiO3 (clinoferrite) Fig 2 Change in iron content in aqueous H2SO4 solution during mixi ng (vmix = 100 rpm) with slag having a 2018年8月19日 For the impurities in the copper smelting waste acid, SO 3, Cu, As, Pb, Zn, Re and other elements enter the waste acid and generate a lot of arsenic residue , gypsum and neutralized residue , in which Cu, Zn and Re metals have not been recycledCu, Re and As are separated by stepwise vulcanization The valuable metals of Cu, Zn and Re are recovered by Research on Recovery of Valuable Metals in Waste Acid from 2018年8月23日 The purpose of this work is to determine the regularities of reducing the losses of valuable metals with waste slag of copper smelting in the conditions of the Balkhash copper smelterDEPLETION OF WASTE SLAG OF BALKHASH COPPER co)] ++ Cotreatment of MSWI Fly Ash and Granulated Lead Smelting Slag
Bioleaching and Recovery of Metals from Final Slag Waste of
2011年9月1日 The FBR produced high dissolved sulfide concentrations after approximately two months of operation, reaching a level of up to 860 mg L −1 at day 72 ( Figure 2A)2018年3月11日 The treatment of smelting slag has attracted much attention nowadays This study investigates the influence of Na 2 S, CuSO 4, and FeCl 3 on sulphidizing flotation of copper oxide The results show that a proper Cu 2+ concentration can increase the sulphidizing effect of copper oxide, while Fe 3+ inhibits the sulphidizing effect Further analysis shows that Cu 2+ Effect of Copper and Iron Ions on the Sulphidizing Flotation of 2023年1月1日 Although considerable effort has been done over a long period of time in the exploitation of industrial waste, ferrochrome slag has received surprisingly less investigationUtilization of steel slag waste as construction material: A review2016年11月20日 A novel aluminothermic smelting reduction (ASR) process was investigated for cleaning waste copper slag; this process is not only able to recover valuable iron, but also eliminates hazardous elements from the endoflife slag productThe effect of adding Al on the reduction of iron oxide and subsequent iron recovery from waste copper slag at 1773 K was Recovery of iron and removal of hazardous elements from waste
Separation and purification of silicon from cutting kerfloss slurry
2019年2月20日 Compared to the hydrometallurgical process that produces a lot of liquid waste (Acker et al, 2018), a clean method combining separation and purification of silicon from silicon waste by electromagnetic and slag treatment technology is proposed, which can achieve the physical separation and chemical purification of silicon from cutting kerfloss slurry waste2022年8月1日 Copper is an indispensable base metal in society, and more than 80% of present copper is produced from copper sulfide minerals through pyrometallurgical technologies (Gorai et al, 2003; Masahide and Honda, 2021; Yin et al, 2018)In the matte production process, copper smelting slag is the main byproduct, which is mainly composed of the glassy phase and some Cotreatment of copper smelting slag and gypsum residue for 2018年7月1日 During the smelting process, the soft melting of the burden drops and accumulates in the lower part of the furnace cylinder At the slagiron interface, the chemical reaction between the metal Green and Efficient Utilization of Waste Ferricoxide Desulfurizer silicate from waste glass Two waste glass based solid sodium silicates (SSWG) with moduli Ms=SiO 2 /Na 2 O of 1 and 15 were thermochemically synthesized following [27] Table 1 Chemical composition by Xray uorescence and surface area of BFS, LSP and waste glass *LOI = Loss on ignition Oxide (wt%) BFS LSP Waste glass CaO 4202 492 1092 SiOLimestone impact on properties, microstructure and CO2
Limestone impact on properties, microstructure and CO
2024年10月10日 Utilizing industrial and urban solid wastes is crucial for developing lowcarbon cements This study proposes a novel method to integrate recycled glass and blast furnace slag (BFS) into alkaliactivated cements It also investigates the influence of pulverized limestone (LSP), as a readily available costefficient partial replacement for BFS The activators were 2018年8月1日 Steel slag is the main waste product in the steelmaking process Because of its chemical composition and technical properties, it can be reused as raw material in steel plants and can serve as a Steel slag in China: Treatment, recycling, and management2020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 industrialization [12−14]; metal lead smelting often needs to add limestone flux for the smelting temperature and slag lead content to reduced [15] Thus, replacing limestone with gypsum sludge and returning it to the smelting furnace as flux can utilize the calcium source in the slag, whileUtilization and detoxification of gypsum sludge by replacing limestone
A potential industrial waste–waste cotreatment process of
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 2016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 2017年1月15日 With a view to overcome disadvantages of traditional sulfurizing agent FeS 2, a new method involving slag cleaning technique and gypsum waste treatment technique, named reductivesulfurizing smelting process, was considered to treat smelter slags using gypsum waste to sulfurize and simultaneously recover valuable metals instead of FeS 2 and CaCO 3Cotreatment of waste smelting slags and gypsum wastes via 2023年6月10日 Due to containing abundant FeO x, Si and trace heavy metals (Pb, As, Cr, Cd, etc), the disposal of nonferrous metallurgical waste slag (NMWS), such as copper slag, lead slag, zinc slag and nickel slag, has attracted more and more attentionWhen the NMWS is applied as raw material for preparing glassceramics, the heavy metals in NMWS could be well The pretreatment of nonferrous metallurgical waste slag and its