The invention relates to a method for upgrading the black mass of spent alkaline and salt batteries mainly comprising manganese and zinc, and also potassium hydroxide and carbon, which is characterized in that it comprises the following steps: - incorporating the black mass in coking coal or in a mixture of coking coals, the amount of black mass incorporated being less than 10% by weight of the mixture, - pyrolytic coking of the mixture obtained in the previous step, and - obtaining a composite coke comprising manganese. The invention also relates to a composite coke comprising manganese obtained by such a method. . Lastly, the invention relates to the use of this composite coke in a metal melting furnace such as a blast furnace or a cupola furnace.
C10B 55/00 - Coking mineral oils, bitumen, tar or the like, or mixtures thereof, with solid carbonaceous materials
C22B 1/00 - Preliminary treatment of ores or scrap
C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
H01M 6/52 - Reclaiming serviceable parts of waste cells or batteries
C10B 57/06 - Other carbonising or coking processesFeatures of destructive distillation processes in general using charges of special composition containing additives
C10K 1/06 - Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials combined with spraying with water
2.
METHOD FOR RECOVERING THE BLACK MASS OF ALKALINE AND SALINE BATTERIES, COKE PRODUCED ACCORDING TO SAID METHOD, AND METHOD FOR USING THE COKE
The invention relates to a method for recovering the black mass of used alkaline and saline batteries. The method is characterized in that black mass is incorporated into coke produced by pyrolysis in a coking oven. The invention can be used in cupola furnaces or blast furnaces during the manufacture of cast iron.
A method for recycling used cells such as saline cells, alkaline cells, button cells and used rechargeable batteries, includes the step of introducing the cells and/or rechargeable batteries as feedstock into a metal melting furnace, at the charging door thereof. The cells and/or rechargeable batteries are subjected to a compression operation in order to remove the electrolytes contained in the cells and/or rechargeable batteries, prior to introducing the cells and/or rechargeable batteries into the metal melting furnace.
A method for recycling used cells such as saline cells, alkaline cells, button cells and used rechargeable batteries, includes the step of introducing the cells and/or rechargeable batteries as feedstock into a metal melting furnace, at the charging door thereof. The cells and/or rechargeable batteries are subjected to a compression operation in order to remove the electrolytes contained in the cells and/or rechargeable batteries, prior to introducing the cells and/or rechargeable batteries into the metal melting furnace.
The method can be used for recycling used cells and rechargeable batteries.
The invention relates to a method for recycling used cells such as saline cells, alkaline cells, button cells and used rechargeable batteries, by introducing the cells and/or rechargeable batteries as feedstock into a metal melting furnace, at the charging door thereof. The invention is characterized in that the cells and/or rechargeable batteries are subjected to a compression operation in order to remove the electrolytes contained in the cells and/or rechargeable batteries, prior to introducing the cells and/or rechargeable batteries into the metal melting furnace. The invention can be used for recycling used cells and rechargeable batteries.
The invention relates to a method for recycling used cells such as saline cells, alkaline cells, button cells and used rechargeable batteries, by introducing the cells and/or rechargeable batteries as feedstock into a metal melting furnace, at the charging door thereof. The invention is characterized in that the cells and/or rechargeable batteries are subjected to a compression operation in order to remove the electrolytes contained in the cells and/or rechargeable batteries, prior to introducing the cells and/or rechargeable batteries into the metal melting furnace. The invention can be used for recycling used cells and rechargeable batteries.
A method for upgrading used or rejected electric battery cells, which include upgradable compounds, such as iron, zinc, manganese, copper, and fixed and volatile carbon, and heavy metals and dangerous compounds. The used or rejected battery cells are introduced as a load into a furnace for melting metal, such as a cupola furnace, a free arc furnace, or an induction furnace. A device for purifying gases produced by the furnace and for capturing and removing noxious elements, such as mercury, chlorides, and fluorides, and heavy molecules such as dioxins, furans, and aromatic substances, is provided in a discharge route of the hot gases, downstream from the melting furnace.
B09B 5/00 - Operations not covered by a single other subclass or by a single other group in this subclass
F27D 17/00 - Arrangements for using waste heatArrangements for using, or disposing of, waste gases
B09B 3/40 - Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
B01D 53/04 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
7.
METHOD FOR RECYCLING USED OR DISCARDED PORTABLE ELECTRICAL BATTERIES
The invention relates to a method for recycling used or discarded portable electrical batteries which comprise recyclable components such as iron, zinc, manganese, copper and fixed and volatile carbon, as well as heavy metals and hazardous compounds. The method is characterized in that the used or discarded batteries are introduced as a load into a metal-melting, smelting type furnace (1,40,44), such as a cupola furnace, a free electric arc furnace or induction furnace, and for which a gas purification device (16,23) is provided in the hot gas evacuation channel after the melting furnace to capture and eliminate harmful elements such as mercury, chlorides or fluorides and heavy molecules such as dioxins, furans and aromatics. The invention can be used for recycling used and rejected batteries.
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