Solutions for ultrafine vertical milling of electrolyte waste slag from aluminum smelting
Efficient extraction and recovery of lithium from waste aluminum
2023年10月1日 An efficient process is proposed to recover Li from waste aluminum electrolyte Reveal the sulphated roasting mechanism with thermodynamic calculation The low molecular Cryolitealumina (Na 3 AlF 6Al 2 O 3) molten salt electrolysis is the only Efficient extraction and recovWu et al (2021) developed a new way to recover Li from waste electrolytes by saturated sodium carbonate roasting at 650 °C for 2 h and then leaching with HNO 3 Roasting with saturated Efficient lithium recovery from electrolytic aluminum slag via an 2021年10月1日 In this paper, a novel approach is developed for achieving the separation/recovery of lithium from spent lithiumcontaining aluminum electrolyte by a sodium A novel approach for lithium recovery from waste lithium
Clean Process for Selective Recovery of Lithium Carbonate from
2023年9月1日 This study employed hydrometallurgical processes to selectively leach lithium from Licontaining aluminum electrolyte slag, using sodium carbonate solution as the leaching 2023年8月2日 The highvalue, green and harmless purification of aluminum electrolysis comprehensive solid waste can not only reduce its harm to the environment and soil but also separate and recover the highvalue rare elements This study aims to develop a process for recovering and treating waste aluminum electrolytes by sulfuric acid roasting The results of Sustainable Recovery of Fluorine from Waste Aluminum Electrolyte 2019年3月13日 Copper smelting production is characterized by formation of a large amount of waste, the majority of which is slags During the production of 1 ton of copper there is 2–4 tons of smelting, converter, and refining conversions slags []Flotation treatment of slags with extraction into concentrate of part of the copper in PO Balkhashtsvetmet started in 1992 [2, 5]Development of Technology for Recycling Copper Smelting Production Waste2018年5月1日 Gallium is a rare metal with a low melting point that blends easily with most elements to form lowmelting alloys (Moskalyk, 2003)Due to this property, gallium and gallium compounds are commonly used in the industry and medical fields (Gupta et al, 2007), for example, radioactive gallium (Ga) is used in nuclear medicine to detect and localize malignant Gallium recovery from aluminum smelting slag via a novel
Properties of Concrete Modified with UltraFine Slag
2019年9月22日 To improve the characteristics of coal bottom ash concrete mixtures, ultrafine slag material, ie, Alccofine 1203 (an innovative ultrafine slag material, low calcium silicate, which offers 2023年10月1日 The main components of waste aluminum cryolite electrolyte are cryolite (Na 3 AlF 6), potassium cryolite (K 2 NaAlF 6), lithium cryolite (Na 2 LiAlF 6), fluorite (CaF 2), and approximately 2% carbon black (Wang et al, 2019)The main treatment methods of waste aluminum cryolite electrolyte can be divided into two categories: combined thermalwet Efficient extraction and recovery of lithium from waste aluminum 2023年4月3日 SolidState Shear Milling for Recycling Aluminum–Plastic Packaging Waste: A Sustainable Solution for Mixed Plastic Waste April 2023; Sustainability 15(7):6144;(PDF) SolidState Shear Milling for Recycling Aluminum–Plastic 2024年1月23日 Copper smelting slag discharged from mining and highaluminum fly ash generated during the combustion of coal for energy production are two typical bulk solid wastes, which are necessary to carry out harmless and resourceful treatment This research proposed an ecofriendly and economical method for the coconsumption of copper smelting slag and high Preparation of Cementitious Materials from Mechanochemically
The recycling of carbonrich solid wastes from aluminum
2024年5月23日 16 Million metric tons of spent carbon electrodes modify carbonrich solid wastes from aluminum electrolysis are produced annually, threatening ecosystems by cyanide and fluoride pollution Here, we review carbonrich solid wastes with focus on sources and hazards, detoxification, separation, recovery, recycling and disposal Treatment techniques 2023年9月1日 Lithium (Li)bearing aluminum electrolyte slag is an inevitable byproduct of the aluminum industry, and improper disposal or stacking it may lead to potential environmental hazards This study employed hydrometallurgical processes to selectively leach lithium from Licontaining aluminum electrolyte slag, using sodium carbonate solution as the leaching agent Clean Process for Selective Recovery of Lithium Carbonate from Waste 2014年5月1日 For many years, efforts have been made to find alternative smelting technologies to replace the centuriesold energyintensive HallHéroult process (Cochran, 2016;Kvande and Drablos, 2014)(PDF) The Aluminum Smelting Process and Innovative2023年6月2日 The effects of LiF, MgF2 and KF additions to the electrolyte on current efficiency were investigated during aluminium electrolysis using base NaF−AlF3−Al2O3 system with a cryolite ratio of 25 Efficient extraction and recovery of lithium from waste aluminum
(PDF) The Study of Carbon Recovery from
2021年1月12日 At present, the treatment methods of carbon anode slag from electrolytic aluminum mainly include flotation [8, 9], vacuum smelting [10], physical activation, roasting, alkali fusion, bubbling 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 2023年11月16日 A solution to improve the energy efficiency of aluminum smelting by preheating prebaked anodes is proposed The reduction of electricity consumption is calculated, and the advantages of the prebaked anode preheating technology are assessed Pilot tests of the anode preheating technology were prepared and conducted The results of mathematical modeling Improving the Energy Efficiency of Aluminum Smelting Using the 2012年1月1日 Iligan City ferronickel smelting plant is producing more than 500,000 metric tons (MT) of ferronickel slag annually which are deposited in the plant's premises since it has no economic valueCharacterization and Leaching Assessment of Ferronickel Slag
A novel approach for lithium recovery from waste lithium
2021年10月1日 Aluminum electrolysis of China, solid waste, such as waste aluminum electrolyte, has been largely idled and caused serious environmental pollution In this paper, a novel approach is developed for achieving the separation/recovery of lithium from spent lithiumcontaining aluminum electrolyte by a sodium carbonate roasting–acid leaching process2024年4月17日 Recycling plays an important role in today's world due to its considerable contributions to mitigating energy concerns and environmental challenges One of them is dross recycling from aluminum (Al) cast houses Unlike other recyclable materials, dross has an abundance of components, including rare earth elements, heavy metals, ferrous, and recycled Aluminum dross: aluminum metal recovery and emerging 2019年6月25日 Effect of UltraFine Slag on Mechanical and Permeability Properties of Metakaolinbased Sustainable Geopolymer Concrete June 2019 DOI: 1012989/acc201974231(PDF) Effect of UltraFine Slag on Mechanical and Permeability 2021年7月30日 Secondary aluminum production is required for the conservation of the environment It can significantly reduce greenhouse gas emissions and energy consumption and reduce the consumption of alumina A Review of Secondary Aluminum Production and Its Byproducts
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) purification2024年2月1日 Aluminum metal was produced using the cryolitealumina molten salt electrolysis method (Ishak et al, 2017)A large amount electrolytic aluminum slag (EAS) is generated during the electrolysis process, as the falling of carbon particles on the anode into the electrolysis cells and the accumulation of lithium fluorine result in energy consumption and electrolyte scrapping Efficient lithium recovery from electrolytic aluminum slag via an 2023年8月2日 Request PDF Sustainable Recovery of Fluorine from Waste Aluminum Electrolyte by Sulfuric Acid Baking The highvalue, green and harmless purification of aluminum electrolysis comprehensive Sustainable Recovery of Fluorine from Waste Aluminum Electrolyte 2024年6月29日 Aluminum electrolyte is a necessity for aluminum reduction cells; however, its stock is rising every year due to several factors, resulting in the accumulation of solid waste Currently, it has become a favorable material for the resources of lithium, potassium, and fluoride In this study, the calcification roasting–twostage leaching process was introduced to extract Stepwise extraction of lithium and potassium and recovery of
Preparation of hierarchical porous activated carbons for high
2022年5月24日 Coal gasification is an important technology for clean conversion and utilization of coal The coal gasification slag is the main solid waste of coal chemical industry, whose comprehensive utilization is an important factor for the whole coal chemical project to realize circular economy In this work, coal gasification fine slag with high carbon content was used as 2019年6月25日 In this study, the effect of electrolyte reuse on the recovery of metals (Primarily aluminum, nickel, copper, lead, silver, palladium, platinum and gold), from waste CPU slots by slurry Effect of electrolyte reuse on metal recovery from waste CPU 2024年2月15日 Ultrafine, highly active coal gasification slag (HCGS) was produced via a sustainable, green dryballmilling method Coal gasification fine slag (CGS), a potential environmental pollutant, was used as a new source of rubber filler without pretreatment, enabling waste utilisation HCGS was added to styrenebutadiene rubber (ESBR) composites, and the Performance of FullComponent Coal Gasification Fine Slag: High 2013年12月1日 Aluminum dross tailings, an industrial waste from the Egyptian Aluminum Company (Egyptalum), was used to produce two types of alums: aluminum sulfate alum (Al2(SO4)312H2O) and ammonium aluminum Optimization of process for total recovery of aluminum from smelting
Multiscale analysis of fine slag from pulverized coal gasification in
2024年2月3日 Fine slag (FS) is an unavoidable byproduct of coal gasification FS, which is a simple heap of solid waste left in the open air, easily causes environmental pollution and has a low resource utilization rate, thereby restricting the development of energysaving coal gasification technologies The multiscale analysis of FS performed in this study indicates typical grain size 2022年11月1日 Neutralization of leachates obtained from SPL treatment with aluminum anodizing acid wastewaters was performed using 2 M NaOH and, alternatively, waste caustic solutions from the aluminum Extraction and recycling of fluoridecontaining phase from spent 2021年10月1日 To recover valuable elements such as lithium from waste aluminum electrolyte, Wu et al (2021) mixed Na 2 CO 3 with waste aluminum electrolyte and roasted them at 650 • C for 25 h, and Na 2 A novel approach for lithium recovery from waste lithium used (C = cement, S = slag) • Very low differential speed of grinding roller to grinding track • Pure rolling motion of the S roller • Low specific wear with ultrafine grinding Hard facing of grinding components within the mill is possible with mobile welding 2 µm 5 µm Loesche
Recovery of aluminum from waste aluminum alloy by low
2020年8月1日 Many researchers have studied the refining of aluminum by low temperature aluminium bath system Ali and Yassen (2018) used a different type of dissolvent to recover aluminum from industrial wastes This method was capable of obtaining aluminum of 99% purity by electrorefining of impure aluminum through the use of anhydrous AlCl 3 and NaCl as ionic 2021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 The SPL Waste Management Challenge in Primary 2016年4月1日 Alccofine (Ultra fine form of slag) which are byproduct from steel industry possess cementitious properties can be used as replacement of cement, which are causing a lot of environmental pollutionUtilization of Waste Foundry Slag and Alccofine for Developing 2020年11月16日 This paper reviews the PGMs recovery from waste catalysts using a metals smeltingcollection process, which belongs to the main pyrometallurgical process, in the presence of various metal Metals smeltingcollection method for recycling of platinum
Pyrometallurgical Routes for the Recycling of Spent LithiumIon
2019年10月16日 Renewable energy is the final solution to mitigate climate change resulted from the burning of fossil fuels that produces large quantities of greenhouse gases [1,2,3]Among various forms of renewable energies, wind and solar represent the most promising candidates in the next few decades []However, the wind and solar energies are intrinsically intermittent, ie, 2018年8月1日 Characterization of Copper Slag From Table I, the contents of copper (Cu) and sulfur (S) are 449 and 053 pct, respectively, with a Cu/S ratio of 847This value does not match the Cu/S ratio of the matte (Cu 2 S: 396), suggesting that most of the copper contained in the slag is not in the form of entrained matte In addition, the magnetite (Fe 3 O 4) content in the Characterization and Recovery of Copper from Converter Copper Slag 2004年11月1日 To determine the electrical conductivity of lowmelting electrolytes (AlF3rich, eg NaF/AlF3 molar ratio = 12), a tubetype cell was used, applying actechniques with a sine wave signal with Electrical conductivity of lowmelting electrolytes for aluminium smelting2014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 concern of the present materials Copper slag is a byproduct obtained during smelting and refining of copper The waste copper slag can be used Use of waste copper slag, a sustainable material
A comprehensive review on the recovery of copper values from copper slag
2023年8月1日 Wang et al [104, 105] also attempted to separate fine copper droplets from copper matte smelting slag by utilizing supergravity The investigation resulted in a cleaner approach to efficiently recovering copper values with a recovery ratio as high as 9798% without any additives and external energy sources