In a method of recovering a transition metal, a first raw material containing an oxidized transition metal and a second raw material containing a reduced transition metal are prepared. A leached liquid containing at least one of nickel, cobalt and manganese is obtained from a raw material mixture of the first raw material and the second raw material. At least one of nickel, cobalt and manganese is obtained from the leached liquid.

Provided is a method for recovering a valuable metal from a material including waste lithium ion batteries or the like. The method comprises: a preparation step for preparing a material including at least Li, Al, and a valuable metal; a reduction and melting step for carrying out a reduction and melting process on the material to obtain a reduced product including a slag and an alloy containing a valuable metal; and a slag separation step for separating the slag from the reduced product to recover the alloy. In the preparation step and/or the reduction and melting step, a flux containing Ca is added. In the reduction and melting step, the reduction and melting process is performed such that the mass ratio of aluminum oxide/(aluminum oxide+calcium oxide+lithium oxide), in the generated slag, is set to 0.5-0.65, and the slag heating temperature is set to 1400-1600? ? C.

Provided is a method for recovering a valuable metal from a material including waste lithium ion batteries or the like. The method comprises: a preparation step for preparing a material including at least Li, Al, and a valuable metal; a reduction and melting step for carrying out a reduction and melting process on the material to obtain a reduced product including a slag and an alloy containing a valuable metal; and a slag separation step for separating the slag from the reduced product to recover the alloy. In the preparation step and/or the reduction and melting step, a flux containing Ca is added. In the reduction and melting step, the reduction and melting process is performed such that the mass ratio of aluminum oxide/(aluminum oxide+calcium oxide+lithium oxide), in the generated slag, is set to 0.5-0.65, and the slag heating temperature is set to 1400-1600? ? C.

Disclosed is a method for recovering a waste lithium cobalt oxide battery, the method comprising: feeding a lithium cobalt oxide battery black powder in a column-shaped container, adding a first acid to the column-shaped container for heat leaching until solids in the column-shaped container are not reduced any more so as to obtain a first leachate and leaching residues, wherein the first acid is a weak acid, and a filtering structure is arranged at the bottom of the column-shaped container; and adding a second acid to the column-shaped container containing the leaching residues for heat leaching until solids in the column-shaped container are not reduced any more so as to obtain a second leachate and graphite, wherein the second acid is a strong acid. According to the present invention, consumption of an inorganic strong acid can be reduced, emission of strong acid gas is reduced, and green and low-carbon heat leaching of the black powder is achieved.

Disclosed is a method for recovering a waste lithium cobalt oxide battery, the method comprising: feeding a lithium cobalt oxide battery black powder in a column-shaped container, adding a first acid to the column-shaped container for heat leaching until solids in the column-shaped container are not reduced any more so as to obtain a first leachate and leaching residues, wherein the first acid is a weak acid, and a filtering structure is arranged at the bottom of the column-shaped container; and adding a second acid to the column-shaped container containing the leaching residues for heat leaching until solids in the column-shaped container are not reduced any more so as to obtain a second leachate and graphite, wherein the second acid is a strong acid. According to the present invention, consumption of an inorganic strong acid can be reduced, emission of strong acid gas is reduced, and green and low-carbon heat leaching of the black powder is achieved.

Provided is a method that is for producing, from a raw material containing an oxide including nickel and cobalt, a valuable metal containing said nickel and cobalt, and that enables the degree of reduction of an alloy obtained through a melting process to be adjusted efficiently and properly. The method comprises: a melting step for obtaining a melted product; and a slag separation step for separating a slag from the melted product and recovering an alloy containing the valuable metal. In the melting step, the degree of reduction in the melting process is determined on the basis of the proportion of the amount of cobalt (cobalt recovery rate) in the produced alloy, with respect to the amount of cobalt in the raw material, and, if the degree of reduction is determined to be excessive, the raw material containing an oxide including nickel and cobalt is added as an oxidizer.

Provided is a method that is for producing, from a raw material containing an oxide including nickel and cobalt, a valuable metal containing said nickel and cobalt, and that enables the degree of reduction of an alloy obtained through a melting process to be adjusted efficiently and properly. The method comprises: a melting step for obtaining a melted product; and a slag separation step for separating a slag from the melted product and recovering an alloy containing the valuable metal. In the melting step, the degree of reduction in the melting process is determined on the basis of the proportion of the amount of cobalt (cobalt recovery rate) in the produced alloy, with respect to the amount of cobalt in the raw material, and, if the degree of reduction is determined to be excessive, the raw material containing an oxide including nickel and cobalt is added as an oxidizer.

The present invention relates to a method of simultaneously recovering cobalt (Co) and manganese (Mn) from lithium-based BATTERY, and more particularly, to a method that is capable of simultaneously recovering cobalt and manganese from lithium-based BATTERY, i.e., recycled resources that contain large amounts of cobalt and manganese, with high purities using multistage leaching and electrowinning methods. According to the method of the present invention, cobalt and manganese can be simultaneously recovered from lithium-based BATTERY as recycled resources, and a recovery method that is cost-effective compared to conventional methods can be provided.

The present invention relates to a method of simultaneously recovering cobalt (Co) and manganese (Mn) from lithium-based BATTERY, and more particularly, to a method that is capable of simultaneously recovering cobalt and manganese from lithium-based BATTERY, i.e., recycled resources that contain large amounts of cobalt and manganese, with high purities using multistage leaching and electrowinning methods. According to the method of the present invention, cobalt and manganese can be simultaneously recovered from lithium-based BATTERY as recycled resources, and a recovery method that is cost-effective compared to conventional methods can be provided.

An apparatus for collecting dust from a cutting unit is provided. The apparatus includes a rotary valve operatively connected to the cutting unit, a conduit in fluid communication with the rotary valve, and a compacting machine disposed downstream from the conduit and configured to receive dust from the conduit. A blower is configured to pull air downstream to carry the dust into the compacting machine. The compacting machine produces a compact from the dust.