C22B15/0056

PROCESS AND SYSTEM FOR RECYCLING E-WASTE MATERIAL
20190024210 · 2019-01-24 ·

In the disclosure, a method for recycling a material is disclosed, the method including: carrying out a first pass operation, wherein the first pass operation includes preparing an E-waste material and a solid oxide material, wherein the E-waste material includes Fe and Si, blending the E-waste material with fluxing agents, feeding a furnace with the blended E-waste material and the solid oxide material, and carrying out smelting the blended E-waste material and the solid oxide material to obtain a slag including iron oxide and a molten metal including copper. A system for recycling an E-waste material including Fe and Si is also disclosed, where the system includes an E-waste material blending unit where the E-waste material blending unit is configured to prepare the E-waste material, fluxing agents and a copper oxide material, and a furnace configured to carry out gasification and smelting the E-waste material and the copper oxide material to obtain a slag including iron oxide and a molten metal including copper.

Process for recycling li-ion batteries
10164302 · 2018-12-25 · ·

The present invention concerns a process for the recovery of metals and of heat from spent rechargeable batteries, in particular from spent Li-ion batteries containing relatively low amounts of cobalt. It has in particular been found that such cobalt-depleted Li-ion batteries can be processed on a copper smelter by: feeding a useful charge and slag formers to the smelter; adding heating and reducing agents; whereby at least part of the heating and/or reducing agents is replaced by Li-ion batteries containing one or more of metallic Fe, metallic Al, and carbon. Using spent LFP or LMO batteries as a feed on the Cu smelter, the production rate of Cu blister is increased, while the energy consumption from fossil sources is decreased.

RECOVERY METHOD FOR VALUABLE METALS IN COPPER ANODE SLIME

Provided is a recovery method for valuable metals in copper anode slime. By using the recovery method of the disclosure, selenium, copper, tellurium, arsenic, lead, bismuth, and precious metals gold and silver in the copper anode slime are recovered. The method adopts two-step vacuum carbothermal reduction to replace reduction smelting of anode slime and stepwise blowing of noble lead in the traditional pyrometallurgy, and avoids the emission of arsenic-containing soot in the traditional process. The recovered gold-rich residue contains almost no base metals such as lead, bismuth, antimony, and arsenic. After subjecting the gold-rich residue to leaching gold by chlorination and reduction, a gold powder could be obtained therefrom with a lower content of base metals than traditional processes. Therefore, the method greatly reduces the amount of produced slag, shortens the production cycle, and reduces the loss of precious metals in the slag.

APPARATUS AND ARRANGEMENT FOR THE METALLURGICAL TREATMENT OF ELECTRICAL AND/OR ELECTRONIC SCRAP OR COMPONENTS AND USES THEREOF AND METHODS FOR THE METALLURGICAL TREATMENT OF ELECTRICAL AND/OR ELECTRONIC SCRAP OR COMPONENTS

The present invention relates to an apparatus and an arrangement for the (pyro)metallurgical treatment of electrical and/or electronic scrap or components, which are in particular configured in such a way that substantially uncontaminated electrical and/or electronic scrap or components thereof can be processed without impurities. The apparatus or the arrangement comprises a melting reactor, which has a cooling device. The present invention also relates to the use of the apparatus or the arrangement far the metallurgical treatment of electrical and/or electronic scrap or components and to the obtainment of raw copper or a precursor thereof. The present invention also relates to methods for the (pyro)metallurgical treatment of electrical and/or electronic scrap or components.

PRODUCTION METHOD FOR VALUABLE METALS

Provided is a method by which it is possible to collect valuable metals from raw material including waste lithium-ion batteries or the like. The present invention is a method which includes: a step for preparing raw material including at least Li, Al, and the valuable metals; a step for obtaining a reduction that includes slag and an alloy containing the valuable metals by subjecting the raw material to a reduction melting treatment; and a slag separation step for collecting the alloy by separating out the slag from the reduction, wherein, in a step for adding a flux containing calcium (Ca) to the raw material and performing reduction and melting thereof, the reduction melting treatment is performed such that the liquidus line temperature of ternary Al.sub.2O.sub.3Li.sub.2OCaO slag in a phase diagram is greater than the liquidus line temperature of a ternary CuNiCo alloy in a phase diagram.

Method and industrial plant for seperating a waste material

A method and an industrial plant for separating a waste material comprises at least one metal and at least one organic material. A separated fraction of the waste material is provisioned which is isolated from the waste material in the course of a mechanical preparation operation. The separated fraction comprises briquettes produced from the waste material, and optionally a coarse fraction of the waste material or of another waste material. A reactor is charged with the separated fraction and gas containing oxygen is introduced into the reactor and the separated fraction is combusted in an incomplete combustion process. The separated fraction is melted into a liquid slag phase and into a liquid metal-containing phase. The slag phase and/or the metal-containing phase are poured off from the reactor.

METHOD AND APPARATUS FOR RETRIEVING VALUABLE METALS STEP BY STEP FROM WASTE PRINTED CIRCUIT BOARD PARTICLES

A method and apparatus for step-by-step retrieving valuable metals from waste printed circuit board particles. Many kinds of metals, most existing in form of elementary substance or alloy, are contained in the waste printed circuit boards. Molten metals are separated selectively by supergravity separation at different temperatures to achieve the step-by-step recovery. Tin-based alloys, lead-based alloy, zinc aluminum alloy, crude copper and precious-metal-enriched residues with different metal contents are separated out and collected on the condition of different temperatures (T=200300 C., 330430 C., 700900 C., 11001300 C.) and controlling the gravity coefficient (G=501000) and separation time (t=220 min) etc. Different metals or alloys can be separated quickly and efficiently and the residue concentration of precious metals can be obtained. The process is simple and low cost to provide an efficient way to recovery the enrichment of valuable metals from electronic wastes.

SCRAP MELTING IN ANODE FURNACE PROCESSES
20180100216 · 2018-04-12 · ·

Provided is a method for melting copper scrap and/or refining blister copper, comprising the steps of: (a) charging of copper scrap into an empty anode furnace and melting the copper scrap; (b) charging molten blister copper into the anode furnace; (c) optionally charging more copper scrap into the anode furnace and melting the copper scrap; (d) optionally repeating steps (b) and/or (c) one or more times until the anode furnace is full and a desired amount of copper scrap has been charged and melted until a final copper batch is obtained; and (e) refining the final copper batch to obtain anode copper.

Copper/tin/lead production

A dilute copper metal composition includes 57-85% wt Cu, 3.0% wt Ni, 0.8% wt Fe, 7-25% wt Sn and 3-15% wt Pb. A process includes the steps of partially oxidizing a black copper composition to obtain a first copper refining slag and a first enriched copper metal, partially oxidizing the first enriched copper metal to obtain a second copper refining slag, whereby at least 37.0% wt of the amount of tin and lead processed is retrieved in the first and second copper refining slags together; and partially reducing the first copper refining slag to form a first lead-tin based metal composition and a first spent slag. The process further includes the steps of adding the second copper refining slag to the first lead-tin based metal composition, thereby forming a first liquid bath; and partially oxidizing the first liquid bath, thereby obtaining the dilute copper metal composition.

Process for producing briquettes from a waste material and briquette made of a waste material

A method for producing briquettes made of a waste material includes provisioning of at least one metal and at least one organic material. The waste material is mechanically prepared in a single or multiple stages and at least one first fraction of the waste material is separated. A briquette mixture containing the at least one first fraction is produced, wherein the at least one first fraction has a calorific value of 0 MJ/kg to 30 MJ/kg. A calorific value of the briquette mixture is adjusted by varying at least the first fraction. The briquette mixture is introduced into a briquetting device and pressed into briquettes. Briquettes with a calorific value of 5 MJ/kg to 30 MJ/kg and with a maximum copper content of 0.1 wt % to 20 wt % are produced.