4 results about "Aluminium industry" patented technology

The present application provides a method for extracting lithium from waste aluminum electrolyte and carbon residue and co-producing sodium aluminum fluoride and hydrogen peroxide, which combines and processes the carbon residue and aluminum electrolyte of aluminum industry waste, adopts a combined process of dry and wet methods, and produces sodium fluoride by volatilizing fluorine through calcination, which can be recycled in aluminum electrolysis enterprises; aluminum is made into fire retardant aluminum hydroxide, sodium sulfate is made into ammonium sulfate fertilizer and sodium carbonate, and sodium carbonate is used for the synthesis of sodium fluoride. The whole process extracts each element step by step and has high yield, and truly realizes the recycling of multiple elements.

The present application belongs to the technical field of comprehensive utilization of aluminum industrial waste resources, and particularly relates to a method for high-value treatment of post-lithium-extraction slag of overhaul slag, which realizes a method for recovering valuable elements such as fluorine, aluminum and sodium in post-lithium-extraction slag of overhaul slag through fluorosilicic acid treatment. The post-lithium-extraction slag is treated by the method, so that the final product is converted into high-molecular poly cryolite and aluminum fluoride products with high quality; efficient recycling of valuable elements such as fluorine, aluminum and sodium is realized, and the resource utilization efficiency of related elements is improved.

This utility model relates to the field of prebaked anode carbon block processing technology, and in particular to a high-precision automatic cutting machine for prebaked anode carbon blocks. It includes a worktable, a first motor, and a blade adjustment assembly. A support column is provided at the lower end of the worktable, and the blade adjustment assembly is provided on one side of the worktable. The first motor is located on one side of the worktable, with a first screw at its output end. A movable frame is located outside the first screw, and a first guide rod is provided on one side of the worktable. A mounting plate is located at the upper end of the movable frame. This device places the prebaked anode carbon block on the worktable, starts the second motor, which drives a rotating disk to rotate. The rotating disk moves a connecting rod, which in turn moves a connecting column. The connecting column causes the movable rod to slide inside the movable frame, and the movable rod moves a clamping plate, thus centering and fixing the prebaked anode carbon block. This improves production efficiency, reduces scrap rate, and meets the modern aluminum industry's demand for high-quality prebaked anode carbon blocks.

The application provides a resourceful treatment and recovery method of waste carbon cathode, and relates to the technical field of solid waste resourceful treatment. The resourceful treatment and recovery method of waste carbon cathode comprises the following steps: step S1, raw material pretreatment; step S2, activation treatment; step S3, primary leaching; step S4, secondary leaching; step S5, cryolite extraction; and step S6, lithium extraction. The method adopts low-temperature molten salt roasting and two-stage leaching coupling, breaks through the high energy consumption and low purity bottleneck of the traditional waste carbon cathode recovery technology, realizes the harmless disposal and high-value utilization of hazardous waste, has important significance for the recycling and utilization of lithium resources, and has important significance for the sustainable development of the aluminum industry. The method provides an economic and environmentally friendly technical path for the harmless treatment and resourceful utilization of waste carbon cathode, and has a broad industrial application prospect.