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
Aluminum sulfate ash, overhaul slag, aluminum electrolyte crushing
Dissolution behavior of overhaul slag from aluminum reduction
2023年8月1日 The main components of overhaul slag are aluminum and silicon oxides These components could be dissolved in the molten cryolitebased salt system (ie, electrolyte) in the 2024年2月1日 In this paper, an innovative process of sulfuric acid roasting and water leaching is proposed, which can efficiently and environmentally recover F, Al and Li from overhaul slag A novel approach for extracting lithium from overhaul slag by low The electrolytic aluminum overhaul slag regeneration and recycling method comprises the following steps: (1) pulverizing the electrolytic aluminum overhaul residues; (2)CNA Electrolytic aluminum overhaul slag, method for 2024年7月24日 The lithium was selectively recovered and enriched from spent aluminum electrolyte slag by using calcium salt roasting transformation followed by HBL121solvent extraction The new process realizes a high leaching Cleaner Process for the Selective Extraction of Lithium
A Sustainable Process for Efficient Extraction of
2024年2月20日 In this paper, the CaSO 4 and CaO mixed roasting process was used to selectively recover Li, P and Al from montebrasite ore, in order to solve the difficult separation of P and Al in sulfuric acid roasting process First, the 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 agent A notable leaching efficiency of Clean Process for Selective Recovery of Lithium 2022年10月9日 In this work, electrolytic aluminum carbon anode slag was separated by flotation Using the selectivity index (SI) as an indicator, the influencing factors of the carbon slag flotation process were optimized, and Recovery of carbon and cryolite from spent carbon 2024年5月23日 Here, we review carbonrich solid wastes with focus on sources and hazards, detoxification, separation, recovery, recycling and disposal Treatment techniques include The recycling of carbonrich solid wastes from aluminum
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Regeneration of raw materials for aluminum electrolysis from
2023年5月20日 The soluble aluminum salt solution and alkali leaching solution were prepared from the mixture of aluminum sulfate (Al 2 (SO 4) 3 18H 2 O industrial grade) and sodium 2024年10月1日 After paying attention to the severity of the problem, researchers carried out a variety of methods to deal with the overhaul slag Detailed research has been conducted on hydrometallurgy, pyrometallurgy, and material preparation (Li and Chen, 2005, Li and Chen, 2010, Mansfield et al, 2002, Shi et al, 2012)The electrolytes and impurities adsorbed on carbon Selective extraction of lithium and solidified fluoride from overhaul 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 Clean Process for Selective Recovery of Lithium 2024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
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A novel approach for extracting lithium from overhaul slag by low
2024年2月1日 Overhaul slag, as one of the main hazardous solid wastes generated in the electrolytic aluminum, has high research value [12]The electrolytic cell lining is eroded by continuous chemical corrosion of hightemperature molten metal and salt, resulting in expansion and peeling off, leading to low production efficiency and degradation of performance [13]2022年12月12日 Based on the research on bulk solid waste contact molding technology by our team [49], the comprehensive performance of pressed bricks with different ratios of aluminum ash and calcium carbide slag was investigated, the ratios of aluminum ash and calcium carbide slag are 9:1 ∼ 1:9 and pure aluminum ash and calcium carbide slag, the pressing pressure is 300 Comprehensive performance study of aluminum ash and calcium 2024年5月1日 The reason is that the lithium content in the overhaul slag is relatively low, and the minimum amount of sulfuric acid is enough to completely transform the lithium compound into NaLi(SO 4) More aluminum compounds are converted to NaAl (SO 4) 2, when m(H 2 SO 4)/m(overhaul slag) increase from 10 to 14Selective preparation of lithium carbonate from overhaul slag by 2022年10月10日 R c (A) and R a (B) of concentrate versus time under the methods of direct flotation and optimal grinding flotation Recovery of carbon and cryolite from spent carbon anode slag of
Sodium Removal from Aluminum Electrolysis Spent Anodes
2023年11月28日 Spent anodes (butts) are the remaining portion of prebaked anodes after consumption, which are reintroduced into the production of prebaked anodes after treatment Among these residues, the main harmful element, sodium, tends to accumulate with the repeated recycling of the butts This accumulation increases the air reactivity of prebaked anodes and 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 2023年5月20日 Due to chemical corrosion and erosion by molten aluminum liquid and electrolyte, the carbon anode of the aluminum electrolytic cell would fall off into the electrolyte during the primary aluminum electrolysis process to produce spent anode carbon (SCA), which has been listed as one of the typical hazardous solid wastes in the National Hazardous Waste Regeneration of raw materials for aluminum electrolysis from 2020年12月1日 The rapid development of the electrolytic aluminum industry in China and the increasing demand for aluminum products have led to the development of many lowgrade bauxite mines with an average Li 2 O content of at least 058% (Wang et al, 2013)Due to the use of this lowgrade bauxite in the electrolytic aluminum process, the content of lithium in the Novel process for the extraction of lithium carbonate from spent
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A novel approach for ultrasonic assisted organic acid leaching of
2023年10月1日 Currently, the green resource utilization in the aluminum electrolysis industry mainly focuses on the solid waste treatment of aluminum electrolysis tank overhaul slag, the resource utilization of waste cathodes, and the recovery of electrolytic tank waste heat There are few reports on lithium recovery from waste aluminum electrolytes [16,17]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 The recycling of carbonrich solid wastes from aluminum Spent aluminum electrolyte slag is a byproduct produced during the electrolysis of aluminum and contains elements such as F, Al, Na, and Li It is a toxic and harmful substance with a stable and complex structure As a consequence of fluorine pollution and low lithium recovery efficiency in the traditional hydro metallurgy process, a novel cleaner production technology was developed Cleaner Process for the Selective Extraction of Lithium from Spent The electrolytic aluminum industry produces a large amount of fluorinecontaining waste slag every year, causing serious environmental pollution and waste of fluorine resources In this paper, the method and process of recovering fluorine from spent aluminum electrolyte was investigated by using Al 2 (SO 4) 3 solution asGreen and efficient separation of fluorine from spent aluminum
Sustainable Recovery of Fluorine from Waste Aluminum Electrolyte
Sustainable Recovery of Fluorine from Waste Aluminum Electrolyte by Sulfuric Acid Baking Wenju Tao1,2 Jiaxin Yang1,2 Liyu Chen1,2 Yifan Zhang 1,2 Shaohua Wu1,2 Jiaming Li1,2 Zhaoshun Liu1,2 Jingui He3 Zhaowen Wang1,2 Received: 10 February 2023 / Accepted: 15 July 2023 / Published online: 2 August 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 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 2021年10月6日 Research on the Preparation Parameters and Basic Properties of Premelted Calcium Aluminate Slag Prepared from Secondary Aluminum DrossResearch on the Preparation Parameters and Basic Properties of
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Selective extraction of lithium and solidified fluoride from overhaul
Request PDF On Oct 1, 2024, Liangmin Dong and others published Selective extraction of lithium and solidified fluoride from overhaul slag by the calcium sulfate roasting and water leaching 2022年10月9日 Where, γ c refers to the yield of flotation concentrate (%); A c (%) and A f (%) are the ash content of flotation concentrate and feed material, respectively 3 Results and discussion 31 Characterization of raw carbon Recovery of carbon and cryolite from spent carbon Coal fly ash (CFA), an industrial byproduct of hightemperature combustion of coal in coalfired power plants, is one of the most complex and largest amounts of industrial solid wastes generated in China It is widely recognized that CFA should be considered as a potential alumina resource to substitute bauxite In this review, the features of highalumina fly ash and aluminum recovery Aluminum extraction technologies from high aluminum fly ash De GruyterThe main components of aluminum ash include single aluminum, aluminum oxide (Al 2 O 3), aluminum nitride (AlN), aluminum carbide (Al 4 C 3), fluoride and chlorinated salts, silicon, iron and other oxide (Kang et al 2022) Aluminum ash slag can be divided into primary aluminum ash and secondary aluminum ash accordingAssessing Environmental Impact of Aluminum Ash Disposal in
电解铝大修渣处置研究进展
2023年4月25日 甘肃冶金, 2017, 39(4):8689 LIANG W Q Disposal and reuse plan of aluminum ash, carbon slag and overhaul slag[J] Gansu Metallurgy, 2017, 39 废旧阴极中的碳和电解质[J] 轻金属, 2013(5):2327 LI N, LI R X, XIE G, et al Separation of carbon and electrolyte in waste cathodes of aluminum electrolysis by Aluminum is an amphoteric metallic element capable of dissolving in both acid and alkaline solutions by formation of aluminum complexes In general, there are two approaches to treating secondary slag: hydrometallurgical processes and pyrometallurgical processes (Mahinroosta and Allahverdi, 2018a; Srivastava and Meshram, 2023)Pyrometallurgical processes have a high Aluminum Sulfate an overview ScienceDirect Topics2023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 2020年12月1日 Green and efficient separation of fluorine from spent aluminum electrolyte by aluminum sulfate solution: Leaching behavior and mechanism Lingqi Meng Tianxiang Hao +5 Cleaner Process for the Selective Extraction of Lithium from Spent Aluminum Electrolyte Slag Tao Zhang Fupeng Liu +4 authors Yong Guo Engineering, Chemistry ACS Novel process for the extraction of lithium carbonate from spent
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A comprehensive review of aluminium electrolysis and the waste
2023年4月13日 Aluminium is produced by electrolysis using alumina (Al2O3) as raw material and cryolite (Na3AlF6) as electrolyte In this HallHéroult process, the energy consumption is relatively large, and DOI: 101016/jjclepro2023 Corpus ID: ; Harmless recovery and utilization of electrolytic aluminum spent cathode carbon block: A comprehensive review @article{Dong2023HarmlessRA, title={Harmless recovery and utilization of electrolytic aluminum spent cathode carbon block: A comprehensive review}, author={Liangmin Dong and Fen Jiao Harmless recovery and utilization of electrolytic aluminum spent 2023年5月20日 Due to chemical corrosion and erosion by molten aluminum liquid and electrolyte, the carbon anode of the aluminum electrolytic cell would fall off into the electrolyte during the primary aluminum electrolysis process to produce spent anode carbon (SCA), which has been listed as one of the typical hazardous solid wastes in the National Hazardous Waste Regeneration of raw materials for aluminum electrolysis from 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 (PDF) Optimization of process for total recovery of
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Environmentally friendly and efficient green recovery of fluoride
2023年7月15日 As one of the three most extensively used metals in the world [1], aluminum finds widespread application in aerospace, machinery manufacturing, automotive, medical, and other industries [2], [3], [4]The production of aluminum and its related alloys [5], [6], [7] still mainly depends on the Hall–Heroult method [8], and its technological process is shown in Fig 1recover the 10% to 30% of metallic aluminum contained in the aluminum slag The secondary aluminum dross is accounting for approximately 70% to 90% of the aluminum slag, which the metal aluminum content remained is generally less than 5% It can be seen that the secondary aluminum dross produced by primaryTechnical Report International Aluminium2024年6月4日 By recycling the metal aluminum in aluminum ash, the quantity and toxicity of aluminum ash can be reduced, and the other components in aluminum ash can be utilized to prepare refractory materials (Li et al 2014; Yoshimura et al 2008; Ruiqiong et al 2014), desulfurizer (Weiqin 2010), aluminum sulfate (Ming 2018) and other products, which can Assessing Environmental Impact of Aluminum Ash Disposal in 2023年11月9日 The process of extracting aluminum with sulfuric acid from highalumina fly ash activated by roasting with Na2CO3 and NaOH as raw materials ware studied The results revealed that the aluminum in fly ash activated by sodium carbonate reached 932% under the optimum conditions (30% H2SO4, 90°C, 120 min, and liquidtosolid ratio was 5:1) Kinetics of aluminum extraction from roasting activated fly ash by
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Research on the Preparation Parameters and Basic Properties of
2021年10月6日 Secondary aluminum dross is a byproduct of the electrolytic aluminum industry, whose main components are Al2O3, AlN and Na3AlF6 Secondary aluminum dross is a type of hazardous waste, with a tremendous yield every year Realizing the harmless treatment or resource utilization of secondary aluminum dross has important economic and social benefits 2024年10月1日 The overhaul slag utilized in the study was obtained from an electrolytic aluminum plant in Jiangxi, China The main chemical composition of the material was shown in Table 1 It can be seen that the content of Al, F, Li in overhaul slag were 1063 %, 2019 %, 159 %, respectivelySelective extraction of lithium and solidified fluoride from overhaul and, Research on the Preparation Parameters and Basic Properties of 2019年2月26日 Aluminum ash is an industrial waste residue produced during alumina electrolysis and aluminum processing and casting In the experiment, alumina powder with a purity of 9897% was prepared by (PDF) Preparation of Alumina from Aluminum Ash by
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Extraction of Aluminum from Coal Fly Ash Using Pressurized
2021年6月30日 The methods reported for the extraction of aluminum from CFA can be categorized as (1) high temperature sintering process, 10,11 (2) mild hydrochemical treating method 12,13 and (3) acid method