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
Shaanxi Xi'an Limestone Crusher Smelting Waste Residue Treatment Case
Life cycle assessment of melting reduction treatment for iron
2022年11月1日 Few studies focused on the environmental impact analysis of dust sludge utilization that is generally difficult to reuse This study used the processLCA method to 2023年3月1日 In addition, high levels of mobile Cd and Zn were examined around a Pb/Zn smelter in Feng County (Shaanxi province, China), with critical ecological risk (Shen et al, Soil heavy metal pollution from Pb/Zn smelting regions in Ironbearing smelting slag, as a secondary solid waste resource, holds significant recycling value Its treatment adheres to three fundamental principles (Shen, 2008, Cheng, 2021) The first Resource utilization strategy of Febearing smelting slag in 2021年9月18日 Amidst Pb/Zn smelter residue (LZSR), universally known as jarosite, the solid waste generated in the production of lead (Pb) and zinc (Zn), about 1 ton of raw material Comparison of limestone calcined clay cement and ordinary
Probabilistic Risk Assessment of Heavy Metals in
2023年12月7日 HMs are highly toxic, easily residual, and bioaccumulative [4, 5], and their environmental impacts vary among the different HM fractions In addition, the residual fraction maintains its chemical stability and biological 2024年6月27日 Key words：lead and zinc smelting；waste residue；heavy metals；spatial distribution；risk assessment 土壤重金属污染是我国目前面临的重大环境 问题之一。因其具有 西南某铅锌冶炼废渣堆放场地周边土壤重金属污染特征与 2022年4月30日 Our findings indicate that heavy metal distribution substantially impacts topsoils around mining and smelting sites, which release massive amounts of heavy metals into the environment Furthermore, heavy metal Research Progress on Heavy Metals Pollution in In this work, we identified three evaluation indicators based on a study of 106 industrial relic restoration projects in China A value assessment model composed of five parts combining the Value assessment for the restoration of industrial relics
Highpurity recycling of hematite and Zn/Cu mixture from waste smelting
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 2023年6月20日 本文提出以秸秆代替焙烧过程中的还原剂，通过控制焙烧过程的温度、时间、还原剂添加量等条件，使秸秆热解产生的CO、H 2 等还原性气体充分还原赤铁矿，达到磁化焙 Theoretical Analysis and Practical Exploration on Ecological 2022年10月10日 In the solid waste synergism mode (Fig 1), which is based on the traditional smelting mode process, a new “volatilization kilnmultichamber furnace” process is added to address the large amount of tail residue generated in the silver flotation section and recover valuable components, such as Zn, Pb, and InAt the same time, solid waste that has not been Environmental impact of typical zinc smelting that Ewaste feeding rate of 595 t/h, oxidation smelting duration of 35 h, reduction smelting duration of 05 h, oxygen enrichment of 21–40 vol%, oxygen consumption of 6806 Nm 3 /ton raw material Materials and Energy Balance of EWaste Smelting An
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Magnetic properties of street dust: A case in Xi’an city, Shaanxi
The median χ value of street dusts in Loudi (8800× 10 − 8 m 3 kg − 1 ) is obviously higher than that of street dusts from heavy traffic cities, eg Beijing (228 × 10 − 8 m 3 kg − 1 2022年5月30日 Valuable metals in smelting sludge from smelting industry have a recovery value In this work, for realizing waste recycling effectively, selective and multistep leaching of valuable metals was Comprehensive Recycling Technology of Waste Residues in 2010年9月15日 The results showed that over 90% of arsenic in smelting residue was removed by volatilization and recovered as As 2 O 3 while copper content increased to 42 wt% In the twostage leaching process, first up to 90% of arsenic was selectively dissolved in 025 mol/L H 2 SO 4 solution and second, the solids were further leached in 10 mol/L H 2 SO 4 solution giving Treatment of smelting residue for arsenic removal and 2017年1月15日 According to above tests, the optimum conditions for Cotreatment of waste smelting slags and gypsum waste via reductivesulfurizing smelting were obtained as follow: 12 wt% coke addition of smelter slag, 20 wt% sulfurizing agent CaSO 4 dosage, a smelting temperature of 1350 °C (1623 K), 3 h smelting durationCotreatment of waste smelting slags and gypsum wastes via
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(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 2023年8月26日 Pyrometallurgical treatment of solid waste is a kind of treatment method, which uses carbon or pulverized anthracite in dust as reducing agent to reduce metal oxides in dust and recover some or all valuable elements at a certain high temperature by using the difference of reduction temperature and melting boiling point of metal oxidesGeneral Situation of Iron and Steel Smelting and Solid Waste Treatment 2020年2月18日 Limestone is a fundamental raw material in various industrial sectors It is formed due to biochemical precipitation of calcium carbonate, and further compaction over long periods of time(PDF) Environmental Hazards of Limestone Mining and2023年12月26日 Study area The main research area of this paper is Beilin District, Xi’an City, Shaanxi Province, China (Fig 2), which is located in the southeast of Xi’an and covers an administrative area of 2337 km 2In summer, Xi’an has a serious heat wave in summer, and the temperature in the city is obviously higher than that in the surrounding counties, and the urban Research on urban threedimensional greening design from
Life cycle assessment for waste acid treatment in zinc smelting
2022年11月1日 Lift cycle assessment (LCA) methodology was applied to evaluating and comparing two waste acid disposal processes in zinc smelting The results indicate that environmental impacts of gas—liquid vulcanization technologies are human toxicity, abiotic depletion potential, and global warming risk, which are mainly caused in neutralizing— 2012年12月1日 Combining data on industrial waste production and treatment to the socioeconomic features of LLMA over the period 2015–2017, a composite indicator proxying the main waste metabolism constraints Sustainability assessment of industrial waste treatment 2024年10月20日 A strongly alkaline waste byproduct known as bauxite residue is formed during the alumina refining process (Lyu et al, 2021)Typically, the stacked bauxite residue exhibits strong alkalinity (pH range from 100 to 125) (AgatziniLeonardou et al, 2008), high salinity (exchangeable sodium percentage values ranging from 53 % to 91 %)(Jiang et al, 2023a)Bauxite residue (red mud) treatment: Current situation and 2024年5月30日 Three soil profiles, including smelting slag heap (SH), traffic area (TA), and adjacent farmland (FA), were sampled at an abandoned Pb smelting site, and the geochemical distribution and Characterization of soil heavy metals at an abandoned smelting
Comparison of limestone calcined clay cement and ordinary
2021年9月18日 Amidst Pb/Zn smelter residue (LZSR), universally known as jarosite, the solid waste generated in the production of lead (Pb) and zinc (Zn), about 1 ton of raw material produces 60% of waste during the smelting process (Gupta and Sachdeva 2020; Nath 2020) Active reutilization and landfilling of such solid waste have gained prominence over a decade2021年2月26日 Semantic Scholar extracted view of "A potential industrial wastewaste cotreatment process of utilizing waste SO2 gas and residue heat to recover Co, Ni, and Cu from copper smelting slag" by X Wan et al[PDF] A potential industrial wastewaste cotreatment 2020年7月1日 Shan et al (2013) reported that the arsenicalkali mixed salt can be mixed with waste glass or smelting slag, and then cured at elevated temperature to obtain an arseniccontaining solidified body The method results in the stabilization treatment of arsenicalkali mixed salt, but the valuable components are not recoveredSeparation and recovery of arsenic and alkali products 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
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 3Enhancing the efficiency of comprehensive utilization of industrial solid waste (ISW) and mitigating environmental impacts are fundamental challenges in achieving a zero solid waste city and advancing future societal development [1], [11], [12]It is regarded as an effective way to solve the environmental problems related to ISW to establish the integrated life cycle (LCA) Practical experience to theoretical innovation: A model for 2021年2月15日 Copperbased mixed waste is the main raw material, and other auxiliary materials, including coal, electric power, highgrade copper scrap, quartz sand, limestone, and lime, as well as other production processes, generate intermediate products and waste slag, such as secondary slag, sponge copper, and anode copper mud residueAnalyzing the environmental impact of copperbased mixed waste 2020年1月25日 Smelting the residues like jarosite , goethite , ferrites, etc is widely in use in nonferrous industries instead of landfilling of stabilized waste like Jarofix The motivation of processing iron residues can be legislation, direct ban of landfilling, scarcity of available land area, and targets to achieve better yields and recoveries of Smelting Jarosite and Sulphur Residue in a Plasma Furnace
Distribution, risk evaluation, and source analysis of the
2023年6月16日 In this study, 30 sediment samples were collected from the lower reaches of the Shichuanhe River in Xi'an, Shaanxi Province, China, to test the distribution of heavy metal elements in this area and for an analysis of the pollution levels of this area, hope to provide guidance on agricultural production activities in this region The results show that the heavy 2023年6月20日 Mine environmental restoration and the comprehensive utilization of solid waste are two ecological issues that are highly concerned by the whole society at present Based on the idea of "theoretical analysis−case study−collaborative governance", taking Yulin, Shaanxi Province as an example, this paper comprehensively analyzes the policy advantages, Theoretical Analysis and Practical Exploration on Ecological 2016年10月14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 Cotreatment of waste smelting slags and gypsum wastes via The exhibition halls of Shaanxi History Museum are generally divided into four main groups; the Preface Hall, the permanent exhibition halls, the temporary exhibition halls, and an exhibition hall for Tang Mural Paintings Once you enter the central hall, you will be in the Preface Hall, where stands a replica of a stone lion from the Shunling Tomb of the Tang Dynasty and a huge Shaanxi History Museum, Xi'an: Exhibitions, Entrance Fee,
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Clean hydrometallurgical route for highly efficient
2023年1月15日 In the past decades, huge amounts of smelting residues have been produced owing to the pyrometallurgical processing of Pb/Zn ores (Zhao et al, 2022)Such residues are mainly deposited on landfills (da Silva et al, 2017) or partially reutilized as construction materials (Zhang et al, 2020), which may pose potential environmental and human health risk (da Silva 2022年9月22日 Germaniumcontaining residues (GCR) are a secondary resource rich in zinc (Zn) and germanium (Ge) produced in the Zn pyrometallurgical process and an important raw material for recovering Zn and GeStudies on Recovery of Valuable Metals by Leaching Lead–Zinc Smelting 2023年10月10日 The addition of a CaOFe capture effectively decreased the melting temperature and melt viscosity of the Wresidue In the smelting reduction of the Wresidue, the valuable oxides (WO 3, CoO, Ta 2 O 5, and Nb 2 O 5) were reduced to an alloy phase, while the other oxides (SiO 2, TiO 2, and Al 2 O 3) formed a silicate phase The alloy phase From waste to wealth: Valuable metals recovered from waste Request PDF On Aug 1, 2023, Weinan Chen and others published From waste to wealth: Valuable metals recovered from waste tungsten leaching residue by a smelting reduction process using CaOFe From waste to wealth: Valuable metals recovered from waste
Environmental impact of typical zinc smelting that
2022年10月10日 In the solid waste synergism mode (Fig 1), which is based on the traditional smelting mode process, a new “volatilization kilnmultichamber furnace” process is added to address the large amount of tail residue generated in the silver flotation section and recover valuable components, such as Zn, Pb, and InAt the same time, solid waste that has not been Ewaste feeding rate of 595 t/h, oxidation smelting duration of 35 h, reduction smelting duration of 05 h, oxygen enrichment of 21–40 vol%, oxygen consumption of 6806 Nm 3 /ton raw material Materials and Energy Balance of EWaste Smelting An The median χ value of street dusts in Loudi (8800× 10 − 8 m 3 kg − 1 ) is obviously higher than that of street dusts from heavy traffic cities, eg Beijing (228 × 10 − 8 m 3 kg − 1 Magnetic properties of street dust: A case in Xi’an city, Shaanxi 2022年5月30日 Valuable metals in smelting sludge from smelting industry have a recovery value In this work, for realizing waste recycling effectively, selective and multistep leaching of valuable metals was Comprehensive Recycling Technology of Waste Residues in
.jpg)
Treatment of smelting residue for arsenic removal and
2010年9月15日 The results showed that over 90% of arsenic in smelting residue was removed by volatilization and recovered as As 2 O 3 while copper content increased to 42 wt% In the twostage leaching process, first up to 90% of arsenic was selectively dissolved in 025 mol/L H 2 SO 4 solution and second, the solids were further leached in 10 mol/L H 2 SO 4 solution giving 2017年1月15日 According to above tests, the optimum conditions for Cotreatment of waste smelting slags and gypsum waste via reductivesulfurizing smelting were obtained as follow: 12 wt% coke addition of smelter slag, 20 wt% sulfurizing agent CaSO 4 dosage, a smelting temperature of 1350 °C (1623 K), 3 h smelting durationCotreatment of waste smelting slags and gypsum wastes via 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 (PDF) Nickel Laterite Smelting Processes and Some2023年8月26日 Pyrometallurgical treatment of solid waste is a kind of treatment method, which uses carbon or pulverized anthracite in dust as reducing agent to reduce metal oxides in dust and recover some or all valuable elements at a certain high temperature by using the difference of reduction temperature and melting boiling point of metal oxidesGeneral Situation of Iron and Steel Smelting and Solid Waste Treatment
(PDF) Environmental Hazards of Limestone Mining and
2020年2月18日 Limestone is a fundamental raw material in various industrial sectors It is formed due to biochemical precipitation of calcium carbonate, and further compaction over long periods of time2023年12月26日 Study area The main research area of this paper is Beilin District, Xi’an City, Shaanxi Province, China (Fig 2), which is located in the southeast of Xi’an and covers an administrative area of 2337 km 2In summer, Xi’an has a serious heat wave in summer, and the temperature in the city is obviously higher than that in the surrounding counties, and the urban Research on urban threedimensional greening design from