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
Overhaul slag (aluminum ash, cathode, carbon slag) grinding equipment investment cost
2023 the 7th International Conference on Energy and
2023年8月1日 In this work, the dissolution behavior of overhaul slag in the cryolitebased molten salt is investigated using silicon oxide, the main component of overhaul slag, as the object of 2023年4月25日 This article analyzes and summarizes the composition and hazards of the overhaul slag and the current development status of domestic and international electrolytic Research Progress of Electrolytic Aluminum Overhaul Slag Disposal2024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 The recycling of carbonrich solid wastes from aluminum With the rapid development of aluminium smelting industry in China, millions of tons of hazardous wastes such as carbon slag, overhaul slag and aluminum ash are generated every yearPresent situation of production, utilization and disposal of
Methodological Review of Methods and Technology for Utilization
2024年9月27日 Spent carbon cathode (SCC) is one of the major hazardous solid wastes generated during the overhaul of electrolysis cells in the aluminum production process SCC is 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 2024年5月1日 Al and Li could be effectively separated from overhaul slag by high temperature sulfation roastingwater leaching Li 2 CO 3 products could be selectively prepared from Selective preparation of lithium carbonate from overhaul slag by The dissolution behavior of overhaul slag in a cryolitebased molten salt system was investigated by thermodynamic calculation and dissolution experiments The liquidus temperature of molten Dissolution Behavior of Overhaul Slag from Aluminum Reduction
Electrolytic cell spent lining Fig 2 Overhaul slags of the
This work presents a deep analyses of an environmentally friendly process to recover all valuable minerals contained in the spent potliner (SPL) such as graphite carbon and aluminum fluoride2023年4月25日 This article analyzes and summarizes the composition and hazards of the overhaul slag and the current development status of domestic and international electrolytic 电解铝大修渣处置研究进展2022年10月10日 One of the main electrolytic aluminum production costs is the consumption of carbon anodes, and carbon anode slag is a common hazardous waste in the aluminum industryRecovery of carbon and cryolite from spent carbon 2023年3月12日 3D response surface plot of γ −0074 mm as a function of the interaction: (a) grinding time × grinding concentration, 25 cm ball diameter; (b) grinding time × ball diameter, 60% grinding (PDF) Recovery of Carbon and Cryolite from Spent
CNA Treatment method for recovering aluminum from aluminum
The invention discloses a treatment method for recovering aluminum by combining aluminum ash and aluminum slag with overhaul slag, which comprises the following steps: 1 respectively processing and utilizing aluminum ash and overhaul residues, preparing waste aluminum ash powder and cathode powder with the particle size of more than 80 meshes, and crushing 2023年4月25日 大修渣作为电解铝行业的主要固体废弃物，含有大量的危害物质，如何对其无害化处理并高效回收其中有价值物质，是近些年铝行业亟待解决的难题。本文分析总结了大修渣的成分、危害及目前国内外电解铝大修渣处置的发展状况，并指出了我国电解铝行业危险废物处置的发 电解铝大修渣处置研究进展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 The invention relates to the technical field of solid waste recycling, and discloses a recycling treatment method of aluminum electrolysis overhaul slag, which comprises the steps of crushing the aluminum electrolysis overhaul slag, adding a fluorine removing agent, grinding and homogenizing to obtain a mixture; mixing water with acid to prepare acid liquor; mixing the CNB Resource treatment method for aluminum
CNA Treatment process of aluminum electrolysis cell overhaul
The invention discloses a treatment process of overhaul slag of an aluminum electrolytic cell, which comprises the following steps: sorting overhaul residues of an aluminum electrolytic cell to obtain carbonaceous waste and refractory waste, respectively crushing and ballmilling to obtain carbon powder and ceramic powder, mixing the carbon powder and the ceramic powder in 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]A novel approach for extracting lithium from overhaul slag by low 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 A method for recovering overhaul slag ash can effectively separate and recover carbon rods in the overhaul slag ash from aluminum ash through water washing separation without subsequent processing, and the aluminum ash is processed into a steel slag refining agent, a slag melting agent and an aluminum oxide refractory material in a steel plantMethod for recovering overhaul slag ash Google Patents
Aluminum Ash Processing Aluminum Ash Recovery Aluminum Ash
Among them, alumina accounts for more than 70%, which has a high recycling value Aluminum ash is divided into primary aluminum ash, secondary aluminum ash, cathode carbon block, anode carbon slag, electrolytic cell impermeable material, refractory, aluminum alloy factory dust collection, aluminum processing sludge, etcThe invention discloses a method for recovering cryolite by combined treatment of aluminum electrolysis overhaul residues and aluminum ash, and relates to an aluminum electrolysis solid waste treatment technology The method comprises the following steps: (1) soaking overhaul residues in water and acid; (2) soaking aluminum ash in water; (3) alkaline leaching of CNA Method for recovering cryolite by Google 2024年2月1日 1 Introduction Spent carbon cathode blocks (SCCB) are produced during the electrolytic production of primary aluminum by molten salt of alumina and has been identified as hazardous waste due to its adsorption of a large amount of soluble fluoride and a small amount of cyanide (Silveira et al, 2002)Fluoride and cyanide in SCCB are easy to dissolve or hydrolyze Study on thermal conversion and detoxification mechanism of 2012年12月31日 3, 4 SCC contains many valuable inorganic compounds, such as alumina, cryolite, uoride, and aluminum silicate, and some carbon blocks also contain small amounts of cyanide 5,6 According to (PDF) Study on Harmless and Resources Recovery Treatment
CNA Electrolytic aluminum overhaul slag Google
The invention discloses a resource treatment method for electrolytic aluminum overhaul slag, and belongs to the technical field of hazardous waste resource treatment Firstly, uniformly mixing the overhaul slag, a reactant and a reaction auxiliary agent, then sintering at a high temperature, and leaching the sintered material with water to obtain a leaching solution containing F, al, na, li 2023年12月1日 As a broadly utilized metal, aluminum incorporates an assortment of special properties such as light weight, great electrical conductivity, ductility, erosion resistance and great reducibility (Mahinroosta and Allahverdi, 2018)Aluminum, known as the "universal metal", contains a wide run of employments within the aviation, development, marine businesses and Harmless recovery and utilization of electrolytic aluminum spent 2022年2月28日 Because overhaul slag contains soluble fluoride and cyanide with high toxicity, if not properly disposed, it will mix with rainwater into rivers, penetrate into underground water sources, pollute surface water sources, and cause great harm to the ecological environment, so the harmless treatment of overhaul slag has become one of the major problems to be solved Four processes of electrolytic aluminum overhaul slag treatment2022年10月10日 According to Figure 11, the ash content of carbon collected in 0–05 min and 05–1 min under the optimal grinding flotation was significantly lower than that direct flotation, because the carbon and cryolite in carbon anode slag Recovery of carbon and cryolite from spent carbon anode slag of
Four processes of electrolytic aluminum overhaul slag treatment
2022年2月28日 Because overhaul slag contains soluble fluoride and cyanide with high toxicity, if not properly disposed, it will mix with rainwater into rivers, penetrate into underground water sources, pollute surface water sources, and cause great harm to the ecological environment, so the harmless treatment of overhaul slag has become one of the major problems to be solved 2024年10月1日 The lithium content in the overhaul slag is more promising for recycling than that in the raw ore containing lithium The general lithium content of overhaul slag is 05 % − 40 %, which mainly comes from the LiF added in the electrolytic process to ensure the efficient production of the electrolytic processSelective extraction of lithium and solidified fluoride from overhaul 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]A novel approach for extracting lithium from overhaul slag by low 2024年9月27日 Spent carbon cathode (SCC) is one of the major hazardous solid wastes generated during the overhaul of electrolysis cells in the aluminum production process SCC is not only rich in carbon resources but also contains soluble fluoride and cyanide, which gives it both recycling value and significant leaching toxicity In this study, we explore the properties, Methodological Review of Methods and Technology for Utilization
Cotreatment of electroplating sludge, copper slag, and spent cathode
2021年9月5日 Electroplating sludge, a hazardous solid waste product of the electroplating industry, presents a serious environmental pollution risk In this study, an environmentally friendly process for solidifying and recovering heavy metals from electroplating sludge using copper slag and spent cathode carbon is proposed Combining the results of toxicity characteristic leaching 2021年5月1日 The electroplating sludge, copper slag, and spent cathode carbon cotreatment process achieves waste disposal with waste and significantly reduces electroplating sludge processing costs Discover Cotreatment of electroplating sludge, copper slag, and spent cathode The method not only can solidify fluorine in the electrolytic aluminum overhaul residues, but also can adjust the pH value of the electrolytic aluminum overhaul residues, so that higher requirements can be met, for example, hazardous waste landfill pollution control standard (GB/T185982019), and harmless electrolytic aluminum overhaul residues can be further A Harmless electrolytic aluminum overhaul slag Request PDF On Feb 1, 2024, Liangmin Dong and others published A novel approach for extracting lithium from overhaul slag by low temperature roasting – water leaching Find, read and cite all A novel approach for extracting lithium from overhaul slag by low
CNU Overhaul slag ash recovery device Google
Therefore, the carbon rods in the overhaul slag ash can be effectively separated and recycled from the aluminum ash through water washing separation without subsequent processing, the aluminum ash is used as a raw material for manufacturing steel slag refining agents, slag melting agents and alumina refractory materials in steel plants, the cost is low, the effect is good, the The ash samples were formed into ash cones with a base length of 7 mm and a height of 20 mm, and the ash melting points of the 12 groups of ash samples were measured under a weak oxidizing atmosphere using a ZDHR3 ash melting point tester Subsequently, the characteristic melting temperature of the ash was measured according to theStudy on Slagging Characteristics of CoCombustion of Meager 2023年4月20日 CGS is classified into coal gasification coarse slag (CGCS) and coal gasification fine slag (CGFS) The CGCS is directly discharged at the bottom of the gasifier, and its composition is mainly aluminosilicates in the amorphous glassy state with relatively low carbon content (Guo et al, 2014)CGCS can be used for many applications, such as cement, road Characterization, carbonash separation and resource utilization 2024年5月1日 As a dangerous solid waste, overhaul slag has been treated harmfully and as a resource by many researchers The floatation chemical process could recover 959% carbon and 901% fluoride from the overhaul slag, but it makes the secondary wastewater treatment more difficult (Wang et al, 2012)Selective preparation of lithium carbonate from overhaul slag by
Recovery of carbon and cryolite from spent carbon
2022年10月10日 One of the main electrolytic aluminum production costs is the consumption of carbon anodes, and carbon anode slag is a common hazardous waste in the aluminum industry2023年3月12日 3D response surface plot of γ −0074 mm as a function of the interaction: (a) grinding time × grinding concentration, 25 cm ball diameter; (b) grinding time × ball diameter, 60% grinding (PDF) Recovery of Carbon and Cryolite from Spent The invention discloses a treatment method for recovering aluminum by combining aluminum ash and aluminum slag with overhaul slag, which comprises the following steps: 1 respectively processing and utilizing aluminum ash and overhaul residues, preparing waste aluminum ash powder and cathode powder with the particle size of more than 80 meshes, and crushing CNA Treatment method for recovering aluminum from aluminum 2023年4月25日 大修渣作为电解铝行业的主要固体废弃物，含有大量的危害物质，如何对其无害化处理并高效回收其中有价值物质，是近些年铝行业亟待解决的难题。本文分析总结了大修渣的成分、危害及目前国内外电解铝大修渣处置的发展状况，并指出了我国电解铝行业危险废物处置的发 电解铝大修渣处置研究进展
Selective extraction of lithium and solidified fluoride from overhaul
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 The invention relates to the technical field of solid waste recycling, and discloses a recycling treatment method of aluminum electrolysis overhaul slag, which comprises the steps of crushing the aluminum electrolysis overhaul slag, adding a fluorine removing agent, grinding and homogenizing to obtain a mixture; mixing water with acid to prepare acid liquor; mixing the CNB Resource treatment method for aluminum The invention discloses a treatment process of overhaul slag of an aluminum electrolytic cell, which comprises the following steps: sorting overhaul residues of an aluminum electrolytic cell to obtain carbonaceous waste and refractory waste, respectively crushing and ballmilling to obtain carbon powder and ceramic powder, mixing the carbon powder and the ceramic powder in CNA Treatment process of aluminum electrolysis cell overhaul 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]A novel approach for extracting lithium from overhaul slag by low
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 A method for recovering overhaul slag ash can effectively separate and recover carbon rods in the overhaul slag ash from aluminum ash through water washing separation without subsequent processing, and the aluminum ash is processed into a steel slag refining agent, a slag melting agent and an aluminum oxide refractory material in a steel plantMethod for recovering overhaul slag ash Google Patents