At present, solid waste generated in the aluminum industry includes: spent cathode carbon blocks, waste refractory linings, anode carbon slag, waste electrolyte, aluminum ash, crust materials, etc. The disposal of these solid hazardous wastes has become a "stumbling block" to the high-quality development of the aluminum industry. Promoting the reduction, harmless treatment, and resource utilization of solid hazardous wastes in the aluminum industry will be the only way for the high-quality and sustainable development of the aluminum industry.
Aiming at the technical difficulties in the field of solid waste treatment in the aluminum industry and the demand for recycling value, Liming Heavy Industry has launched two overall grinding equipment solutions, MTW European Trapezium Grinding Mill and LM Vertical Roller Mill, based on the physical and chemical properties of typical solid wastes. Relying on nearly 40 years of technological accumulation, through integrated technical upgrades and process adaptability optimization, the technical bottlenecks such as component corrosion and hardness differences in solid waste grinding have been overcome, and the grinding efficiency has been significantly improved to meet the refined needs of subsequent high-value substance extraction. These solutions provide equipment support with both technical advancement and economic feasibility for the green and low-carbon transformation of the aluminum industry, helping the industry accelerate its transition to a circular economy model.
Wet alkali leaching recovery technology
(Recovery of carbon materials, cryolite, fluoride salts)
Resource utilization of aluminum ash to prepare high-alumina materials
Lithium extraction process from lithium-rich electrolytic aluminum waste slag
(Recovery of battery-grade lithium carbonate, cryolite, carbon materials)
Product Advantages:
Product Advantages
Liming Heavy Industry provides customers with EPC turnkey services for resource utilization of aluminum industry solid waste, covering the entire process from project planning and design, equipment selection and configuration, to installation, commissioning, and post-operation maintenance. Relying on rich project experience in the powder grinding equipment manufacturing field, we promote the efficient implementation of aluminum industry solid waste powder production projects, creating high-standard and high-benefit powder production lines for customers. This achieves multiple optimizations in both project construction cycles and operational costs.
Main components: Spent cathode carbon blocks, waste refractory materials, spent cathode steel bars, cathode ash, etc.
Resource Utilization DirectionsRecycled electrolyte raw materials, extraction of cryolite, lithium salts, recovery of carbon materials, minor recovery of other valuable elements, refractory materials, aggregates, building materials.
Alumina crust on the upper part of aluminum electrolytic cells, mainly composed of alumina and electrolyte.
Resource Utilization DirectionsAnode covering material, secondary aluminum production, cryolite regeneration.
Generated as raw material impurities increase, also present in overhaul slag and carbon slag.
Resource Utilization DirectionsRecovery of cryolite, lithium salts.
Solid waste generated during aluminum electrolysis, mainly formed by oxidation of pre-baked anodes at high temperatures, causing carbon particles to detach and enter the electrolyte.
Resource Utilization DirectionsRecycled electrolyte raw materials, extraction of cryolite and lithium salts, recovery of carbon powder, minor recovery of metallic aluminum.
An important solid waste generated in the aluminum industry, mainly from the scum and skimmings floating on the upper layer of aluminum melt during metallurgical melting processes such as primary aluminum electrolysis, aluminum casting, and secondary aluminum recycling.
Resource Utilization DirectionsRecovery of metallic aluminum, extraction of alumina from aluminum ash to produce aluminum compounds such as aluminum hydroxide, coagulants, calcium aluminate and etc, flue gas desulfurization.
The market for resource-based treatment of hazardous solid waste in the aluminum industry continues to heat up, emerging as a prime golden track for industry players. With nearly 40 years of expertise in powder grinding, LIMING HEAVY INDUSTRY has taken the lead in taken the lead in seizing technological high ground in this field. Our two core products—LM Vertical Mill and MTW European Trapezium Mill—deliver high-efficiency and stable performance tailored to the grinding requirements of aluminum industrial waste, making them the preferred solutions for industry clients. Choose LIMING HEAVY INDUSTRY to unlock a sustainable development path that transforms aluminum waste into "green gold." Let's align hazardous waste treatment with resource recycling to forge a new future for the green industry!
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