Method for separating rare metal in waste sagger

Abstract

The present invention relates to extracting a rare metal from a waste sagger by immersing the waste sagger in a solvent and generating an ultrasonic vibration in the solvent, thereby enabling the rare metal to be extracted from the waste sagger in an easy and eco-friendly manner.

Description

Method for separating rare metals from waste gas

[0001] The present invention relates to a method for separating rare metals from waste gas, and more particularly, to a method for separating rare metals from waste gas for easily and environmentally friendly extraction of rare metals.

[0002] The cathode active material of a lithium secondary battery is fired at high temperatures in a sagger made of a ceramic compound mainly composed of Si02, Al203, and MgO. The sagger is used for repeated high-temperature firing of lithium-containing composite oxides, which are the raw materials for the cathode active material. Therefore, over time, its surface is eroded, and lithium hydroxide, lithium carbonate, and the cathode active material are deposited in the eroded area. Ultimately, the sagger whose surface is eroded by lithium hydroxide, lithium carbonate, etc. has a reduced durability and is discarded.

[0003]

[0004] Spent charcoal often contains heavy metals and other hazardous chemicals. If not properly handled, these substances can lead to soil and water contamination. Furthermore, incineration of spent charcoal can produce hazardous gases at high temperatures, contributing to air pollution. Spent charcoal often contains a mixture of various materials, making the separation and recycling process complex.

[0005] One embodiment of the present invention aims to provide a method for separating rare metals from waste gas, which can easily and environmentally extract rare metals from waste gas.

[0006] In order to achieve the above-mentioned purpose, a method for separating rare metals from waste spores according to an embodiment of the present invention is characterized by immersing waste spores in a solvent and extracting rare metals from waste spores by generating ultrasonic vibrations in the solvent.

[0007] Additionally, the solvent is characterized as being water.

[0008] In addition, it is characterized by separating a solution obtained by ultrasonic vibration and a solid contained in the solution.

[0009] In addition, the lung lining is characterized by including a bottom portion having an upper surface and a lower surface, and a side wall portion disposed on an edge of the bottom portion and extending from the upper surface of the bottom portion to the upper portion of the bottom portion.

[0010] In addition, the solvent is contained in a washing tank having a bottom and side walls, and the bottom of the waste gasket is characterized by being arranged at an angle with respect to the bottom of the washing tank.

[0011] Additionally, the vibration frequency of the ultrasound is characterized as being 25 KHz.

[0012] Additionally, it is characterized by extracting lithium from the separated liquid.

[0013] Meanwhile, in the case of solid phase separation, it is characterized by the separation and extraction of lithium, nickel, cobalt, and manganese as single materials or compounds.

[0014] According to the present invention, rare metals, particularly lithium, can be easily extracted from the spleen.

[0015] Additionally, rare metals including lithium can be extracted from waste metals in an environmentally friendly manner.

[0016] Figure 1 is a flow chart schematically illustrating a method for separating rare metals from a closed cell according to one embodiment of the present invention.

[0017] FIG. 2 is a drawing illustrating one embodiment of the extraction of rare metals illustrated in FIG. 1.

[0018] FIG. 3 is a drawing illustrating a method for separating rare metals from the pulmonary artery according to FIGS. 1 and 2.

[0019] FIG. 4 is a drawing illustrating an embodiment of separating the liquid and solids illustrated in FIG. 2.

[0020] FIG. 5 is a schematic diagram illustrating a method for separating rare metals from the endothelium according to FIGS. 1, 2 and 4.

[0021] Figure 6 is a perspective view schematically illustrating the pulmonary artery sac shown in Figure 5.

[0022] Figure 7 is a schematic drawing showing a state in which the closed-loop valve illustrated in Figure 6 is placed in a washing tank.

[0023] Figure 8 is a schematic drawing showing another state in which the closed-loop valve illustrated in Figure 7 is placed in a washing tank.

[0024] Throughout the specification, identical reference numbers refer to substantially identical components. In the following description, detailed descriptions of components and functions not related to the core components of the present invention and those known in the art may be omitted. The meanings of terms used in this specification should be understood as follows.

[0025] The advantages and features of the present invention, and the methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms. These embodiments are provided solely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined solely by the scope of the claims.

[0026] The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining embodiments of the present invention are illustrative and are not limited to the details depicted. Like reference numerals designate like elements throughout the specification. Furthermore, in describing the present invention, detailed descriptions of related known technologies will be omitted if they are deemed to unnecessarily obscure the gist of the present invention.

[0027] In this specification, when the terms "includes," "has," and "consists of," are used, other parts may be added, unless "only" is used. When a component is expressed in the singular, it includes the plural unless otherwise explicitly stated.

[0028] When interpreting a component, it is interpreted as including the error range even if there is no separate explicit description.

[0029] When describing a positional relationship, for example, when the positional relationship between two parts is described as 'on top of', 'upper part of', 'lower part of', 'next to', etc., one or more other parts may be located between the two parts, unless 'right away' or 'directly' is used.

[0030] When describing a temporal relationship, for example, when the temporal continuity is described as 'after', 'following', 'next to', 'before', etc., it can also include cases where it is not continuous, as long as 'right away' or 'directly' is not used.

[0031] While terms like "first" and "second" are used to describe various components, these components are not limited by these terms. These terms are used merely to distinguish one component from another. Therefore, a "first" component referred to below may also be a "second" component within the technical scope of the present invention.

[0032] “X-axis direction”, “Y-axis direction” and “Z-axis direction” should not be interpreted as merely geometric relationships in which the relationship between them is perpendicular to each other, but may mean a wider directionality within the range in which the configuration of the present invention can function functionally.

[0033] The term "at least one" should be understood to include all possible combinations of one or more associated items. For example, "at least one of the first, second, and third items" can mean any combination of items that can be represented by two or more of the first, second, and third items, as well as each of the first, second, and third items.

[0034] The features of each of the various embodiments of the present invention can be partially or wholly combined or combined with each other, and various technical connections and operations are possible, and each embodiment can be implemented independently of each other or implemented together in a related relationship.

[0035]

[0036] Hereinafter, a method for separating rare metals from a closed cell according to an embodiment of the present invention will be described with reference to the drawings.

[0037] FIG. 1 is a flow chart schematically illustrating a method for separating rare metals from waste gas according to an embodiment of the present invention, FIG. 2 is a drawing illustrating an embodiment of the extraction of rare metals illustrated in FIG. 1, and FIG. 3 is a drawing illustrating a method for separating rare metals from waste gas according to FIGS. 1 and 2.

[0038] Referring to FIGS. 1 to 3, a method for separating rare metals from a waste gasket according to an embodiment of the present invention includes a step (S10) of immersing the waste gasket (10) in a solvent, a step (S20) of generating ultrasonic vibrations in the solvent, and a step (S30) of extracting rare metals from the waste gasket (10) through ultrasonic vibrations in the solvent.

[0039]

[0040] Spent refractory material (10) refers to refractory material discarded after being used in a process. Spent refractory material (10) is a refractory material mainly used in high temperature environments and is used in various industrial fields such as metal industry, chemical process, and power plant. Spent refractory material (10) is generally made of alumina (Al2O3), silica (SiO 2) , composed of refractory materials such as magnesia (MgO). These materials remain stable even at high temperatures and have low thermal conductivity, minimizing heat loss.

[0041]

[0042] The closed-cell slag (10) can be provided in the form of bricks, panels, coatings, etc., each designed for a specific application and environment. The closed-cell slag (10) is generally porous, which contributes to increased thermal stability and enhanced resistance to thermal shock. The closed-cell slag (10) has excellent heat resistance at high temperatures, effectively blocking heat generated in high-temperature environments. The closed-cell slag (10) has excellent resistance to reactions with various chemicals, and minimizes structural damage even when in contact with oxidizing or reducing agents.

[0043]

[0044] A washing machine (20) used in a method for separating rare metals from a waste gasket according to the present invention may include a washing tank (200) and an ultrasonic generator (210). The ultrasonic generator (210) may generate ultrasonic waves at the bottom of the washing tank (200). The washing tank (200) may include a bottom (201) and a side wall (202). By generating ultrasonic waves, the medium is locally heated, and the resulting large tension generates small bubbles in the solvent. When the generated bubbles burst, the material receiving the ultrasonic waves may be subjected to mechanical action or undergo chemical changes due to the pressure and discharge within the bubbles.

[0045]

[0046] In addition, when ultrasound is generated in a solvent (liquid), contraction and expansion alternately occur in the liquid, and the waves propagate through the liquid. As the ultrasonic energy increases further, the cohesive force between the molecules of the liquid is destroyed, and a microscopic cavity is created, which explodes and releases powerful energy. The energy is transmitted to the surface and deep inside of the endotracheal tube (10) immersed in the solvent by this shock wave, causing physical and chemical effects. The vibration frequency of the ultrasound generated from the ultrasonic generator (210) may be 25 kHz.

[0047]

[0048] The solvent may include water, washing water, and distilled water. In the ultrasonic vibration generation step (S20), the solvent (water) may have a temperature above room temperature and below 80 degrees Celsius. If the temperature of the solvent (water) is above 80 degrees Celsius, the cavitation (bubble) intensity becomes very weak, resulting in a significantly reduced rare metal separation effect. The intensity of cavitation can be increased by using washing water or distilled water with a low or no dissolved gas content as the solvent. The greater the cavitation intensity, the more likely it is that the separation and dissolution of metal ions will be facilitated.

[0049]

[0050] The rare metal extraction step (S30) may include a step of separating a liquid and a solid (S300) and a step of extracting lithium from the liquid (S310). By generating ultrasonic vibrations, rare metals separated from the waste slag (10) are dissolved in the washing tank (200) or remain in the form of sludge. That is, through ultrasonic vibrations, a solution containing dissolved rare metals and a solid (sludge) contained in the solution can be obtained. The solution obtained through ultrasonic vibrations and the solid contained in the solution are separated (S300). The solution contains dissolved lithium. The solid contains rare metals such as manganese, nickel, and cobalt, or compounds thereof. Therefore, lithium and rare metals other than lithium or compounds thereof can be separated and extracted. The compound may be composed of one or more rare metals, including manganese, nickel, and cobalt.

[0051]

[0052] Lithium is extracted from a liquid (solution) (S310). A precipitant may be added to the solution obtained through ultrasonic treatment. Lithium ions contained in the solution may react with the precipitant and precipitate as a solid. After redissolving the precipitated lithium, impurities can be removed and purity increased through a recrystallization process.

[0053]

[0054] FIG. 4 is a drawing illustrating an embodiment of separating liquid and solid as illustrated in FIG. 2, and FIG. 5 is a drawing illustrating a method for separating rare metals from the closed cell according to FIGS. 1, 2, and 4.

[0055] Referring to FIGS. 4 and 5, the step (S300) of separating liquid and solid includes a first separation step (S301) using a mesh filter (2) and a second separation step (S302) using a centrifuge (3). The solution and solid obtained by ultrasonic treatment can be first separated through the mesh filter (2). The solution and solid can be first separated through the mesh filter (2). The solid separated by the mesh filter (2) is provided to the centrifuge (3). The centrifuge (3) can secondarily extract the solution contained in the solid from the solid (S302). The centrifuge (3) utilizes the principle that each substance precipitates depending on the difference in density. Thereby, the lithium extraction efficiency can be increased.

[0056]

[0057] FIG. 6 is a perspective view schematically illustrating the closed diaphragm (10) illustrated in FIG. 5, FIG. 7 is a drawing schematically illustrating one state in which the closed diaphragm (10) illustrated in FIG. 6 is placed in a washing tank, and FIG. 8 is a drawing schematically illustrating another state in which the closed diaphragm (10) illustrated in FIG. 7 is placed in a washing tank.

[0058] Referring to FIGS. 6 to 8, the pulmonary artery (10) includes a bottom portion (100) and a side wall portion (110). The bottom portion (100) has an upper surface and a lower surface. The bottom portion (100) may be flat. The side wall portion (110) is positioned at an edge of the bottom portion (100). The side wall portion (110) may extend from the upper surface of the bottom portion (100) to the upper portion of the bottom portion (100).

[0059]

[0060] The side wall portion (110) includes a first side wall portion (111), a second side wall portion (112), a third side wall portion (113), and a fourth side wall portion (114). The first side wall portion (111) is arranged to face the second side wall portion (112). The third side wall portion (113) and the fourth side wall portion (114) are arranged to face each other. The first side wall portion (111) and the second side wall portion (112) can be arranged perpendicular to the third side wall portion (113) and the fourth side wall portion (114). A positive electrode active material of a lithium secondary battery is manufactured by firing at high temperature on the upper surface of the bottom portion (100) and the inner side of the side wall portion (110).

[0061]

[0062] In one embodiment, the waste cloth (10) is placed in the washing tank (200) through a basket (4). The basket (4) may have multiple holes. In addition, the basket (4) may include at least one support (5). The support (5) may extend from the bottom toward the top of the basket (4). The support (5) may support one side of the waste cloth (10). Accordingly, the waste cloth (10) may be placed at an angle with respect to the bottom (201) of the washing tank (200).

[0063]

[0064] The bottom part (100) of the waste lacquerware (10) can be arranged to be inclined at an acute angle with respect to the normal line of the bottom (201) of the washing tank (200). For example, the bottom part (100) of the waste lacquerware (10) can be inclined at an angle of 0 degrees or more and 90 degrees or less with respect to the normal line of the bottom (201) of the washing tank (200). For example, the bottom part (100) of the waste lacquerware (10) can be inclined at an angle of 10 degrees or more and 40 degrees or less with respect to the normal line of the bottom (201) of the washing tank (200). Thereby, when the waste lacquerware (10) is immersed, air bubbles can be prevented from being trapped at the bottom of the waste lacquerware (10). Therefore, the performance of separating rare metals from the waste lacquerware (10) can be improved.

[0065]

[0066] The support member (5) can support at least one of the upper surface of the bottom part (100) of the diaphragm (10) and the inner surface of the side wall part (110). The upper surface of the bottom part (100) of the diaphragm (10) faces the bottom (201) of the washing tank (200). In addition, the lower surface of the bottom part (100) of the diaphragm (10) faces the upper part of the washing tank (200). The support member (5) can include a mounting surface (51) and a supporting protrusion (52). The mounting surface (51) is arranged on the upper surface of the support member (5). The mounting surface (51) can be parallel to the bottom (201) of the washing tank (200). The supporting protrusion (52) can protrude upward from the mounting surface (51). The mounting surface (51) supports one side of the side wall part (110). The support protrusion (52) can support the other side of the side wall portion (110).

[0067]

[0068] Although the invention made by the present inventor has been specifically described according to the above embodiments, the present invention is not limited to the above embodiments, and it goes without saying that various modifications can be made without departing from the spirit of the invention.

Claims

1. A method for separating rare metals from waste slag, which involves immersing waste slag in a solvent and generating ultrasonic vibrations in the solvent to extract rare metals from the waste slag.

2. In paragraph 1, A method for separating rare metals from wastewater using water as the solvent.

3. In paragraph 1, A method for separating rare metals from a waste gas by separating a solution obtained by ultrasonic vibration and a solid contained in the solution.

4. In paragraph 1, The lung cancer is, a bottom portion having an upper surface and a lower surface; and A method for separating rare metals from a closed chamber, the closed chamber including a side wall portion extending from the upper surface of the bottom portion to the upper portion of the bottom portion, and arranged at the edge of the bottom portion.

5. In paragraph 4, The solvent is contained in a washing tank having a bottom and side walls, A method for separating rare metals from waste metal cups, wherein the bottom of the waste metal cup is arranged at an angle relative to the bottom of the washing tank.

6. In paragraph 1, A method for separating rare metals from pulmonary fibrosis using ultrasonic vibration frequency of 25 KHz.

7. In paragraph 3, A method for separating rare metals from waste metallurgy by extracting lithium from separated liquid.

8. In paragraph 3, A method for separating rare metals from waste gas, which extracts rare metals and compounds from separated solids.

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