WO2014171681A1 - 리튬 회수장치 및 회수방법 - Google Patents
리튬 회수장치 및 회수방법 Download PDFInfo
- Publication number
- WO2014171681A1 WO2014171681A1 PCT/KR2014/003183 KR2014003183W WO2014171681A1 WO 2014171681 A1 WO2014171681 A1 WO 2014171681A1 KR 2014003183 W KR2014003183 W KR 2014003183W WO 2014171681 A1 WO2014171681 A1 WO 2014171681A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode
- lithium
- adsorbent
- carrier
- manganese oxide
- Prior art date
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/34—Electrolytic production, recovery or refining of metals by electrolysis of melts of metals not provided for in groups C25C3/02 - C25C3/32
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/02—Electrolytic production, recovery or refining of metals by electrolysis of solutions of light metals
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/22—Electrolytic production, recovery or refining of metals by electrolysis of solutions of metals not provided for in groups C25C1/02 - C25C1/20
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
Definitions
- the present invention relates to an apparatus and a method for recovering lithium contained in a solution such as seawater.
- the mineral recovery technology which can selectively extract only certain valuable metal ions dissolved (dissolved) in seawater, reduces the dependence on foreign resources and enables stable supply of resources, thus providing sufficient value as a growth engine of the national economy and a sustainable future. It is a very important technology for national economic development.
- lithium ion molecular sieves include inorganic compounds such as manganese oxide particles embedded in polymers such as polyvinyl chloride (PVC), or alternatively ion exchanged in a reservoir composed of a polymer membrane, followed by acid treatment. It is usually recovered through.
- PVC polyvinyl chloride
- the conventional techniques described above have the advantage of having a high recovery rate for lithium ions from seawater.
- Korean Patent Registration No. 10-1136816 has been devised by the inventors of the present application.
- the technique includes an electrode module to which metal ions such as lithium are adsorbed.
- a solution in which metal ions are present is flowed to the electrode module through a pump so that lithium ions are attached to the electrode module to which the electrode is applied.
- Patent Document 1 Korean Registered Patent No. 10-1136816
- the present invention aims to solve the above problems, and an object of the present invention is to provide a lithium recovery apparatus and method which is not only large in size, but also excellent in energy efficiency and economic efficiency.
- the first electrode and the first electrode is coated with an adsorbent containing manganese oxide on the surface of the stainless steel (or metallic material plated with a highly corrosion-resistant material such as nickel or chromium on a conductive material in the form of a wire mesh or perforated plate)
- an adsorbent containing manganese oxide on the surface of the stainless steel (or metallic material plated with a highly corrosion-resistant material such as nickel or chromium on a conductive material in the form of a wire mesh or perforated plate)
- the solid manganese oxide when coating the adsorbent containing manganese oxide on the surface of the stainless steel carrier having the form of a wire mesh or perforated plate, the solid manganese oxide is detached even after repeated or long-term use so that a strong bond between the manganese oxide particles can be maintained.
- the present invention is mixed with the precursor raw material of lithium manganese oxide and coated on the surface of the carrier, and firmly solidifies the lithium manganese oxide particles produced by melting at a temperature lower than the temperature for converting the precursor to lithium manganese oxide
- an apparatus having an electrode that greatly improves the adhesion of lithium manganese oxide coated on a metal carrier by using an anchoring agent to fix it, and remarkably improves repeatability and long-term usability.
- the metal oxide chelating agent when used together with the above improving agent, when the adsorbent is coated on the surface of the carrier, the dispersion of the adsorbent is better, and the miscibility with the improving agent is increased, which results in more uniformity over the entire surface.
- the dimensional controllability is excellent, and the damage to the surface due to the resistance caused by the dimensional nonuniformity in this part can be further reduced.
- the lithium recovery apparatus of the present invention has a first electrode which is immersed in a liquid containing lithium and is coated with an adsorbent containing manganese oxide on the surface of a stainless steel carrier having a plate-shaped wire mesh or perforated plate form.
- the second electrode which is immersed in the liquid containing lithium and is located in a shape facing each other with the first electrode at intervals and to which electricity is applied.
- the first electrode and the second electrode which are metal electrodes coated on both sides with a manganese oxide adsorbent, are repeatedly disposed.
- the entire ship or the outer support module holding the first electrode and supporting the first electrode and the second electrode without repeating the position is applied as the second electrode, and applied to the entire outer module in the form of ground.
- the present invention proposes a structure for application as a second electrode.
- a lithium-containing liquid is disposed on a surface of the carrier, the second electrode being disposed to face the first electrode at a distance from the first electrode coated with an adsorbent containing manganese oxide, and to which electricity is applied.
- the negative electrode (-pole) and the positive electrode (+ pole) are respectively applied to the first electrode and the second electrode in the state of being immersed in the electrode, so that lithium is adsorbed to the adsorbent of the first electrode and then applied to the first electrode and the second electrode.
- the polarity of the electricity is changed so that lithium is separated from the adsorbent.
- the lithium recovery apparatus of the present invention is coated with an adsorbent containing manganese oxide on the surface of a stainless steel carrier (or a metallic carrier plated with a highly corrosion resistant material such as nickel or chromium on a conductive material) having a wire mesh or perforated plate form. Since the first electrode and the second electrode facing the first electrode are immersed in a lithium-containing liquid, electricity is applied to the first electrode and the second electrode so that lithium is attached to the adsorbent of the first electrode. Not only is this possible, but it is also energy efficient and economical.
- the improver and / or metal oxide chelating agent together, to ensure a solid bond between the manganese oxide particles, which is the coating adsorbent to be coated so that the powdery manganese oxide does not detach even in repeated or long-term use, adsorption characteristics
- the sorbent is more uniformly coated on the surface of the carrier, so that the dimensional controllability is excellent, and the damage of the surface due to the resistance caused by the dimensional nonuniformity in such a part This may have an effect that can be further reduced.
- FIG. 1 is a schematic view for explaining a lithium recovery device of the present invention
- FIG. 2 is a schematic view for explaining an arrangement structure of a first electrode and a second electrode as components of the present invention (a first electrode and a second electrode are alternately disposed at intervals, and between the first electrode and the second electrode; With insulation layer)
- FIG 3 is another schematic view for explaining an arrangement structure of a first electrode and a second electrode as components of the present invention (a plurality of first electrodes are disposed, and one second electrode is positioned with respect to the plurality of first electrodes). state)
- FIG. 4 is a schematic view showing a structure in which a manganese oxide adsorbent is repeatedly arranged a first electrode and a first electrode, which is a metal electrode coated on both sides;
- FIG. 5 illustrates that the entire vessel or the outer support module holding the first electrode and supporting the first electrode and the second electrode without the repetitive positions is applied as the second electrode, and the second electrode is applied to the entire outer module in the form of ground.
- the present invention relates to an apparatus for recovering lithium contained in seawater, brine and other liquids using the adsorption method.
- lithium ions are diffused into the adsorbent as quickly and deeply as possible in order to maximize the performance of the adsorbent, which determines the efficiency of the adsorption reaction. Should be able to be adsorbed.
- the acid concentration of the desorbent used when desorbing the adsorbed lithium should be easily desorbed in a very dilute acid solution.
- a method of applying electricity to two electrodes corresponding to each other and applying an adsorbent to which lithium ions are adsorbed to an electrode to which a negative electrode (-pole) is applied is used.
- the present invention has an object of providing a lithium recovery apparatus and a recovery method which is not only possible to increase the size but also excellent in energy efficiency and economic efficiency.
- the lithium recovery apparatus of the present invention has a first electrode 10 coated with an adsorbent 12 containing manganese oxide on the surface of the carrier 11.
- the first electrode 10 has a second electrode 20 which is positioned to face each other and is applied with electricity.
- electricity is applied to the first electrode 10 and the second electrode 20, and a cathode (-pole) and an anode (+ pole) are respectively applied to the first electrode 10 and the second electrode 20.
- a power supply device 30 that can change the polarity of the applied electricity so that the positive electrode (+ pole) is applied to the first electrode 10 and the negative electrode (-pole) is applied to the second electrode 20.
- the first electrode 10 or the second electrode 20 is immersed in a liquid containing lithium.
- the reason for changing the polarity of electricity applied to the first electrode 10 and the second electrode 20 in the above configuration is that when the lithium adsorbed on the adsorbent is to be separated, the first electrode 10 and the second electrode 20 This is because the lithium attached to the adsorbent can be moved in the direction of the second electrode 20 to be separated smoothly by changing the polarity of electricity applied to the electrode.
- the first electrode 10 may be implemented in a form in which an adsorbent including manganese oxide is coated on a surface of a stainless steel carrier having a plate-shaped wire mesh or a perforated plate.
- the adsorbent should be uniformly coated with a constant thickness, the area where the manganese oxide adsorbent comes into contact with seawater increases, and the adsorption amount and adsorption rate of lithium ions increases.
- the electric field is not uniformly formed in the first electrode 10 and the second electrode 20, and a locally stronger electric field is formed at a specific portion, the adsorption efficiency of lithium ions is lowered, and the durability of the two electrodes is also greatly reduced. There is.
- the carrier of the first electrode 10 is preferably a plate-shaped wire mesh or perforated plate in which a specific surface area is wide and an electric field is uniformly distributed in all parts of the entire electrode.
- the reason why the structure of the present invention described above is easy to enlarge is because it is easy to increase the size of the first electrode 10 and the second electrode 20.
- first and second electrodes 10 and 20 may be alternately arranged at intervals as shown in FIG. 2.
- a plurality of first electrodes 10 may be disposed, and one second electrode 20 may be positioned with respect to the plurality of first electrodes.
- FIG. 4 a structure in which the first electrode and the second electrode, which are metal electrodes coated with both surfaces of a manganese oxide adsorbent, is repeatedly arranged as shown in FIG. 4, which is a very preferable structure.
- the entire vessel or the external support module holding the first electrode and supporting the first electrode and the second electrode without repeating positions are applied as the second electrode, and the ground shape is applied to the entire external module. It may also be applied to the structure of the second electrode.
- the voltmeter 40 for measuring the voltage applied to the first electrode 10 and the second electrode 20 is installed to detect the minute voltage change when in use to control the device. Can be.
- a current meter 50 for measuring the current applied to the first electrode 10 coated with the adsorbent may be provided to measure the fine current according to the ion conductivity.
- the degree of diffusion of lithium ions into the adsorbent can be quantitatively confirmed, and the end point of the lithium ion adsorption of the adsorbent can be determined from the flow of the fine current to accurately determine the timing of recovering the adsorbed lithium. do.
- This configuration is very effective because it can not only improve the durability of the adsorbent but also quantitatively produce.
- the voltage and current applied to the first electrode 10 and the second electrode 20 depend on the type of the carrier 11, and the adsorption conditions, that is, the lithium ion concentration in seawater, and the adsorption of lithium ions to the adsorbent 12 are performed. Constant voltage, constant current control according to the degree, there is a need to be applied by adjusting appropriately according to the environmental change according to the seasonal change, the sea water temperature change.
- the provision of the voltmeter 40 and the ammeter 50 is effective for controlling the apparatus of the present invention.
- an insulating layer positioned between the first electrode 10 and the second electrode 20 to insulate the first electrode 10 and the second electrode 20 and transmit the liquid may be further provided.
- the end point of lithium adsorption is determined by measuring the change in impedance formed at the two electrodes according to the degree of adsorption of lithium ions.
- the carrier 11 and the second electrode 20 of the first electrode 10 may be made of the same metal, and the second electrode 20 may use an inert metal material which is more chemically stable. .
- the carrier 11 of the first electrode 10 is implemented with stainless steel
- the 200 series and the 400 series have an electrochemical inactivation significantly lower than that of the 300 series.
- the carrier 11 is degreased and washed and dried in a degreasing solution mixed with a basic solution and an emulsifier solution.
- the adsorbent containing manganese oxide is coated on the surface of the carrier in which the film was formed as described above.
- Chemical coating solution is a solution having a composition of 1-2M concentration of dichromic acid and 1-5M concentration of sulfuric acid, the temperature of the solution can be pretreated in the range of room temperature ⁇ 75 °C.
- the adsorbent in coating the adsorbent on the carrier 11 of the first electrode 10, may be coated in a liquid phase by spraying or dipping.
- the adsorbent solution for coating on the carrier 11 may be formed in the form of a lithium compound, a manganese compound, a doping additive, and a nano fine particle dispersion stabilizer which is a precursor of lithium manganese oxide.
- a wetting agent or a surfactant may be added to reduce the surface tension of the solution in order to improve adhesion with the carrier and to form a uniform coating film.
- the adsorbent solution is prepared in the form of an aqueous solution using water as a solvent.
- polar organic solvents or nonpolar organic solvents may be used, such as alcohols.
- polar or non-polar organic compounds as solvents involves hydrolyzing the organometallic compounds dissolved in organic solvents.
- problems in the uniformity and production reproducibility of the adsorbent solution depending on the hydrolysis conditions. Can be.
- Lithium compounds and manganese compounds can be used for all compounds that are soluble in a solvent depending on the type of each solvent used.
- the present invention does not change the structural properties of the adsorbent compound after doping, particularly in the case of suitable doping elements, but only by selecting and adding enhancers having elements which can improve the durability or further improve the adsorption properties. It is particularly good to increase the adsorption-and-desorption effect of lithium ions and also to the long-term use, the manganese oxide as an adsorbent to the carrier is firmly fixed to the carrier, furthermore, firmly adhered between the manganese oxide particles to significantly increase the long-term durability.
- Such elements include all transition metal compounds such as titanium, zirconium, nickel and cobalt, all rare earth compounds such as cerium, and typical elemental compounds, which can be added alone or in combination, and their use forms are organic acids of the elements.
- Compounds, such as a compound and an ester compound, are mentioned.
- composition range of the solution may be prepared in a concentration of 0.1-2.0M lithium compound, 0.1-2.0M concentration of the manganese compound.
- the use of the concentration of 0.01-0.5M concentration is good for the adsorption and desorption of lithium ions, the durability enhancing effect is also good, but is not necessarily limited to this unless it significantly lowers the performance of the adsorbent.
- the dispersion-stabilizing surfactant used in the present invention may be added in the range of 0.5-3% by mass ratio of the total solids added.
- composition range of the more preferable solution is 0.1-2.0M concentration of lithium compound, 0.1-2.0M concentration of manganese compound, 0.01-0.5M concentration of improving agent, and surfactant is 0.5-3% in the mass ratio of the total solid added.
- Surfactant is used depending on the type of lithium or manganese compound to be added or the type of the improving agent, and the amount or type to be added depending on the concentration.
- nonionic surfactants or wetting agents having a low molecular weight and containing no ions are used.
- cationic compounds may also be used.
- the carrier formed with the chemical conversion coating may be heat-treated in a temperature range of 200 to 500 ° C., preferably 450 to 550 ° C., after washing and drying to form the film more densely and firmly.
- To insulate the cut metal part is coated with ceramic, a material that is stable even at a temperature of 500-600 ° C, which is a lithium manganese oxide firing temperature.
- silica sol is used as a main component, and alumina sol is added to impart the adhesion of the metal material.
- titania sol and zirconia sol are added to impart strength and hardness characteristics.
- an appropriate organosilane compound is added to form a strong bond between the metal material and the metal oxide sol and to form a dense structure of the coated film.
- the concentration of each metal oxide sol in the solution can be appropriately adjusted according to the metal material and the desired properties after coating.
- the solution prepared as above is sprayed on the metal carrier pretreated by the method of Example 1. It is coated by various methods such as dipping and roll coating, and after primary drying for 10 minutes or more in a 70-100 ° C. region, a heat treatment is performed in a 200-250 ° C. region for 30 minutes to completely cure the insulating film.
- the diffusion current of lithium can be measured by connecting the first electrode 10 coated with the adsorbent 10 and the ammeter 50 in series.
- the degree of adsorption of lithium can be confirmed by a separate impedance system that automatically measures from time to time.
- a floating film is formed that can suppress corrosion of the carrier made of stainless steel mesh.
- the carrier is degreased in the degreasing solution. Since the degreasing solution is generally known and used in the art, no further detailed description is omitted.
- the formation of the chemical conversion film which increases the composition of the durable chromium, is not limited, but preferably, it is not limited to a solution having a composition of dichromic acid in the concentration range of 1 to 2 M and sulfuric acid in the range of 1 to 5 M, but usually at a temperature of 70 ° C. at room temperature. It was kept in the film and treated with chemical conversion film by immersing the carrier (eg stainless carrier).
- the carrier eg stainless carrier
- an insulating film can be formed if necessary.
- a step of forming the insulating film on the carrier having undergone the floating film forming step was performed.
- the method for forming the insulating film is not limited to the insulating film forming composition, but for example, 1 to 30 parts by weight of silica, alumina, titania, and zirconia are sol, preferably alcohol, water such as ethanol, methanol, or other organic solvents.
- a composition comprising 1 to 20 parts by weight of a sol and 1 to 50 parts by weight of a coupling agent is sprayed onto a pretreated metal carrier. Coating is performed by immersion, roll coating, or the like.
- organosilane-based compound in the coupling agent include glycidoxy propyl triethoxysilane, methyl triethoxy silane, amino propyl triethoxy silane, imidazole propyl triethoxy silane, and the like. Solids content is 10-70% by mass ratio, but is not limited thereto.
- a silica sol may be preferably used as a main component, an alumina sol is added to impart the adhesion of the metal material, and a titania sol and zirconia to impart strength and hardness characteristics.
- the sol was added and an organosilane compound was added as a suitable coupling agent for the formation of a dense structure of the coated film and a strong bond between the metal material and the metal oxide sol.
- organosilane compound include, but are not limited to, glycidoxy propyl triethoxysilane, amino propyl triethoxy silane, imidazole propyl triethoxy silane, and the like.
- the adsorbent solution may be a lithium manganese oxide adsorbent solution using water as a solvent, but is not limited thereto.
- the metal oxide precursor used in the present invention is usually soluble in water and uses a precursor that is stable in water.
- a lithium metal precursor is not limited, but lithium acetate or the like may be used in combination with an organic lithium compound or lithium hydroxide, and an organic manganese compound may be used as the manganese metal precursor.
- wetting agents such as polyalkylene oxides such as polyethylene oxide or polypropylene oxide, non-ionic and high molecular dispersant, polyalkylene oxides, composite polymers thereof, organic acid surfactants, amines, and amides, etc., based on solid content, are 0.1-2. It can be added in the range of%.
- the solution prepared above is sufficiently mixed at the temperature of 50 degreeC or more in the reactor with a cooling circulation apparatus, for example, mixing enough for 1 hour or more, and a solution is prepared.
- the solution prepared as described above is effective even if water is used as a solvent and an organic compound having an alcohol type, a hydroxyl group, or an organic acid functional group is used as a solvent, but it should not affect the properties of the metal precursor.
- the mixing temperature is preferably hydrolyzed slowly at a temperature of 45 ° C. or lower and sufficiently stirred for a sufficient time, for example, 20 hours or more.
- the first electrode 10 coated with the adsorbent is completed by immersing the carrier having undergone the insulating film forming step in the adsorbent solution prepared as described above and separating and drying the adsorbent solution.
- the lithium manganese adsorbent is not limited, but preferably dried at 70-100 °C and preferably heat treated at 450-550 °C to form a thin layer of lithium manganese oxide.
- an enhancer to the lithium manganese oxide adsorbent in order to increase durability and adsorption characteristics.
- the content of the modifiers can be added in various amounts as needed, but can be added, for example, in the range of 0.01-0.5M.
- modifiers include all transition metal compounds, such as titanium, zirconium, nickel, cobalt, all rare earth compounds, such as cerium, and typical element compounds, which may be added alone or in the form of complex compounds, the use of which is described above. Examples thereof include compounds such as organic acid compounds and ester compounds.
- a metal oxide chelating agent may be additionally used in order to improve adhesion and lithium recovery performance together with the improvement agent.
- the chelating agent is an organic compound capable of coordinating covalent bonding because it has a non-covalent pair of electrons.
- the functional groups include, but are not limited to, compounds such as 2, 4, -pentanedione, diethanol methylamine, acetoacetate, and the like.
- the amount of the chelating agent which is soluble in water and has coordination covalent bonds with a metal and has stable oxide precursor properties in water is added to the solution by adding the covalent covalent bond equivalent ratio of the metal precursor to prepare a solution.
- This solution may be prepared using an organic compound having an alcohol type, a hydroxyl group or an organic acid functional group as a solvent, without using water as a solvent.
- organometallic compounds other than acetic acid compounds may be used among organometallic compounds which are metal oxide precursors, and after the chelating agent is added, the metal precursor and the chelating agent may be sufficiently reacted. The reaction should be sufficiently stirred for at least 1 hour.
- the concentration of the adsorbent solution is diluted, but not limited after the primary coating.
- the secondary coating is dried at 70-100 ° C. and subjected to the second coating to coat the adsorbent. It can be carried out through a repeated coating method.
- a layered lithium manganese oxide thin film by heat treatment at preferably 450-550 °C.
- a method of separating lithium ions by immersing the first electrode 10 in an acidic solution while lithium is adsorbed on the first electrode 10 can be used.
- lithium may be more easily separated and dissolved.
- the acid solution for the separation of lithium may be inorganic acid, which is a strong acid such as hydrochloric acid and sulfuric acid, but it is easy to separate and dissolve by electric diffusion of lithium ions. You may use an organic acid.
- lithium ions having the smallest ion grains among alkali metal ions have an advantage of being able to be precipitated and separated by neutralization with organic acids, unlike other alkali metal ions.
- a plurality of first electrodes 10 coated with an adsorbent containing manganese oxide are arranged on a surface of a stainless steel support having a wire mesh shape.
- the plurality of second electrodes 20 are disposed to face each other at intervals.
- the insulating layer 60 was positioned between the first electrode (+ pole) and the second electrode ( ⁇ pole).
- the cathode (-pole) and the anode (+ pole) are applied to the first electrode 10 and the second electrode 20, respectively.
- a power supply device 30 is provided to change the polarity of the applied electricity so that a positive electrode (+ pole) is applied to the first electrode 10 and a negative electrode ( ⁇ pole) is applied to the second electrode 20.
Abstract
Description
Claims (12)
- 담체 표면에 망간산화물을 포함하는 흡착제가 코팅되어 있는 제1전극;리튬을 함유하고 있는 액체에 침지되는 것으로서 상기 제1전극과 간격을 두고 마주보는 형태로 위치되며 전기가 인가되는 제2전극; 및제1전극과 제2전극에 전기를 인가하도록 되어 있되 제1전극과 제2전극에 음극(-극)과 양극(+극)을 각각 인가한 후 인가되는 전기의 극성을 바꾸어 제1전극에 양극(+극)이 인가되고 제2전극에 음극(-극)이 인가되도록 할 수 있는 전원공급장치;를 포함하여 구성된 리튬 회수장치.
- 제 1항에 있어서,상기 제1전극은 망간산화물을 포함하는 흡착제를 코팅한 리튬 회수장치.
- 제 1항에 있어서,상기 제1전극과 제2전극에 인가되는 전압을 측정하는 전압계;상기 제1전극에 인가되는 전류를 측정하는 전류계;가 더 구비된 리튬 회수장치.
- 제 1항에 있어서,상기 제1전극과 제2전극 사이에 위치되어 상기 제1전극과 상기 제2전극을 절연시키고 액체는 투과시키는 절연층;이 더 구비된 리튬 회수장치.
- 제 1항에 있어서,상기 제1전극과 제2전극은 간격을 두고 교번하여 복수 개 배치되어 있는 리튬 회수장치.
- 제 5항에 있어서,상기 흡착제는 망간전구체와 리튬전구체 및 개선제를 함유한 코팅용액을 담체에 코팅하고 가열함으로써 제조된 흡착제인 리튬 회수장치.
- 제 6항에 있어서,상기 개선제는 티탄늄, 지르코늄, 니켈, 코발트와 같은 모든 전이금속 화합물, 세륨과 같은 모든 희토류 화합물, 전형원소 화합물에서 선택되는 단독 또는 복합화합물인 리튬 회수장치.
- 제 6항에 있어서,상기 흡착제는 금속킬레이트 화합물을 더 포함하는 리튬 회수장치.
- 제 8항에 있어서상기 금속킬레이트 화합물은 5A 족과 6A족 원소가 포함된 작용기인 케톤기, 수산기, 아민기, 아마이드기, 황화기, 인 작용기 중 하나 이상을 포함하고 있는 유기 화합물인 리튬 회수장치.
- 담체 표면에 망간산화물을 포함하는 흡착제가 코팅되어 있는 제1전극과 간격을 두고 상기 제1전극과 마주보는 형태로 위치되며 전기가 인가되는 제2전극을 리튬함유 액체에 침지시킨 상태에서 제1전극과 제2전극에 음극(-극)과 양극(+극)을 각각 인가하여 제1전극의 흡착제에 리튬이 흡착되도록 한 후 제1전극과 제2전극에 인가되는 전기의 극성을 바꾸어 리튬이 흡착제로부터 분리되도록 하는 것을 특징으로 하는 리튬 회수방법.
- 리튬화합물, 망간화합물, 개선제를 포함하는 용액을 담체에 코팅하는 단계;상기 코팅된 담체를 가열하여 리튬망간산화물 층을 형성하는 단계;를 포함하는 리튬 회수장치용 전극의 제조방법.
- 제 11항에 있어서,상기 용액은 금속킬레이트제를 더 포함하는 리튬 회수장치용 전극의 제조방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/785,219 US9546430B2 (en) | 2013-04-17 | 2014-04-14 | Lithium recovery device and recovery method |
CN201480021908.9A CN105408521B (zh) | 2013-04-17 | 2014-04-14 | 锂回收装置及其回收方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2013-0042394 | 2013-04-17 | ||
KR1020130042394A KR101335364B1 (ko) | 2013-04-17 | 2013-04-17 | 리튬 회수장치 및 회수방법 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014171681A1 true WO2014171681A1 (ko) | 2014-10-23 |
Family
ID=49986912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2014/003183 WO2014171681A1 (ko) | 2013-04-17 | 2014-04-14 | 리튬 회수장치 및 회수방법 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9546430B2 (ko) |
KR (1) | KR101335364B1 (ko) |
CN (1) | CN105408521B (ko) |
WO (1) | WO2014171681A1 (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IN2014DE00081A (ko) * | 2014-01-10 | 2015-07-17 | Bry Air Asia Pvt Ltd | |
KR101467994B1 (ko) * | 2014-03-31 | 2014-12-03 | 한국지질자원연구원 | 알루미나 구조물을 이용한 리튬 흡착제 및 이의 제조방법 |
KR101585933B1 (ko) * | 2015-08-13 | 2016-01-18 | 한국지질자원연구원 | 다종 이온 회수 시스템 |
CA3003245A1 (en) * | 2018-05-10 | 2019-11-10 | Liep Energy Ltd. | Process for production of lithium battery electrodes from brine |
KR102133790B1 (ko) | 2018-08-13 | 2020-07-21 | 명지대학교 산학협력단 | 니켈코발트망간산화물을 이용한 리튬회수방법 |
KR102129313B1 (ko) * | 2018-08-13 | 2020-07-08 | 명지대학교 산학협력단 | 니켈망간산화물을 이용한 리튬회수방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100939516B1 (ko) * | 2007-11-29 | 2010-02-03 | 한국지질자원연구원 | 리튬 망간 산화물 및 그의 제조방법, 및 상기 산화물을이용하는 리튬 흡착제 |
KR20120024423A (ko) * | 2010-08-12 | 2012-03-14 | 제펜 아토믹 에너지 에이전시 | 리튬 회수 방법 및 리튬 회수 장치 |
KR101133669B1 (ko) * | 2008-11-21 | 2012-04-10 | 한국지질자원연구원 | 이온체형 망간 산화물 제조 및 리튬 이온 흡착/탈착 공정을 위한 일체형 리튬 회수 장치, 이를 이용한 리튬 회수 방법 및 이를 이용한 리튬 흡탈착 시스템 |
KR101136816B1 (ko) * | 2011-07-26 | 2012-04-13 | 한국지질자원연구원 | 금속이온 회수용 전극모듈의 제조방법, 금속이온 회수용 전극모듈 및 이를 구비한 금속이온 회수 장치 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2535748B2 (ja) * | 1991-03-04 | 1996-09-18 | 工業技術院長 | リチウム回収方法 |
CN1200475C (zh) * | 2003-05-09 | 2005-05-04 | 武汉理工大学 | 用离子筛从废旧锂离子电池中分离回收锂的方法 |
JP2012504190A (ja) * | 2008-09-29 | 2012-02-16 | 韓国地質資源研究院 | 分離膜貯留層を用いるリチウム回収装置、これを用いるリチウム回収方法、及びこれを用いるリチウム吸脱着システム |
EP2562276A1 (en) * | 2010-04-22 | 2013-02-27 | Haruo Uehara | Device and method for recovering lithium |
CN102373341A (zh) * | 2010-08-12 | 2012-03-14 | 独立行政法人日本原子力研究开发机构 | 锂的回收方法及锂的回收装置 |
CN102049238B (zh) * | 2010-11-19 | 2012-08-15 | 中南大学 | 一种选择性提取锂的离子筛及其应用 |
CA2871092C (en) * | 2012-04-23 | 2017-05-09 | Nemaska Lithium Inc. | Processes for preparing lithium hydroxide |
-
2013
- 2013-04-17 KR KR1020130042394A patent/KR101335364B1/ko active IP Right Grant
-
2014
- 2014-04-14 US US14/785,219 patent/US9546430B2/en active Active
- 2014-04-14 CN CN201480021908.9A patent/CN105408521B/zh active Active
- 2014-04-14 WO PCT/KR2014/003183 patent/WO2014171681A1/ko active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100939516B1 (ko) * | 2007-11-29 | 2010-02-03 | 한국지질자원연구원 | 리튬 망간 산화물 및 그의 제조방법, 및 상기 산화물을이용하는 리튬 흡착제 |
KR101133669B1 (ko) * | 2008-11-21 | 2012-04-10 | 한국지질자원연구원 | 이온체형 망간 산화물 제조 및 리튬 이온 흡착/탈착 공정을 위한 일체형 리튬 회수 장치, 이를 이용한 리튬 회수 방법 및 이를 이용한 리튬 흡탈착 시스템 |
KR20120024423A (ko) * | 2010-08-12 | 2012-03-14 | 제펜 아토믹 에너지 에이전시 | 리튬 회수 방법 및 리튬 회수 장치 |
KR101136816B1 (ko) * | 2011-07-26 | 2012-04-13 | 한국지질자원연구원 | 금속이온 회수용 전극모듈의 제조방법, 금속이온 회수용 전극모듈 및 이를 구비한 금속이온 회수 장치 |
Also Published As
Publication number | Publication date |
---|---|
CN105408521A (zh) | 2016-03-16 |
KR101335364B1 (ko) | 2013-12-02 |
CN105408521B (zh) | 2018-12-11 |
US9546430B2 (en) | 2017-01-17 |
US20160060777A1 (en) | 2016-03-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2014171681A1 (ko) | 리튬 회수장치 및 회수방법 | |
WO2015137678A1 (ko) | 산화그래핀 코팅층을 포함하는 복합막, 이를 포함하는 다공성 고분자 지지체 및 이의 제조방법 | |
CN109163654B (zh) | 一种超快响应的柔性应变传感器及其制备方法 | |
CN102877109A (zh) | 电泳沉积法制备石墨烯透明导电薄膜 | |
CN110767956B (zh) | 一种锂离子电池极片材料与集流体的剥离方法 | |
WO2012067338A2 (ko) | 레독스 흐름 전지용 전극, 그 전극의 제조방법, 레독스 흐름 전지용 전해액 제조장치, 그 제조방법, 전해액의 선택이온 농도계, 선택이온 농도 측정방법 및 자립용 전지 시스템 | |
WO2016036121A1 (ko) | 리튬 전극, 이를 포함하는 리튬 이차 전지, 상기 리튬 이차 전지를 포함하는 전지 모듈 및 리튬 전극의 제조방법 | |
WO2011162431A1 (ko) | 연료전지용 분리판 및 그 제조 방법 | |
WO2014027825A1 (ko) | 초발수성 코팅용액 조성물 및 코팅 조성물의 제조방법 | |
CN109338430B (zh) | 一种覆盖在金属表面的硅烷/环氧树脂-go-硅烷多层防护膜的制备方法 | |
CN106587038A (zh) | 一种石墨烯薄膜基底的处理液、处理方法及石墨烯薄膜的制备方法 | |
WO2018186603A1 (en) | Electrochemical mirror | |
CN114318455B (zh) | 一种高导电耐蚀的聚合物复合涂层及其制备方法和双极板 | |
WO2018155972A2 (ko) | 우수한 접착력을 갖는 동박, 그것을 포함하는 전극, 그것을 포함하는 이차전지, 및 그것의 제조방법 | |
WO2020226232A1 (ko) | 유기 전기화학 트랜지스터 소자 및 그 제조방법 | |
WO2014027833A1 (ko) | 투명 전도성 막 코팅 조성물, 투명 전도성 막 및 투명 전도성 막의 제조 방법 | |
WO2016080642A1 (ko) | 바이폴라 이온교환시트 및 그 제조방법 | |
CN111999359A (zh) | 一种石墨烯基透明导电薄膜电极及其制备方法和应用 | |
WO2023113123A1 (ko) | 산 염기 접합 흐름 전지의 성능 개선을 위한 이온 채널이 정렬된 음이온 교환 층을 가지는 비대칭 바이폴라막, 그 제조 방법 및 바이폴라막이 적용된 산 염기 접합 흐름 전지 | |
WO2018101665A1 (ko) | 자화를 이용한 반도체 코팅막 제조방법 | |
CN109142466B (zh) | Cvd石墨烯的无污染转移工艺获得氧化石墨烯与石墨烯复合结构的气敏薄膜传感器及方法 | |
WO2023048419A1 (ko) | 전극 코팅장치 및 이를 이용한 전극의 제조방법 | |
WO2020004965A1 (ko) | 미세먼지 제거용 3차원 필터 및 이의 제조방법 | |
WO2013002564A2 (ko) | 이형방지 조성물, 상기 이형방지 조성물을 포함하는 그래핀 적층체 및 그 제조방법 | |
WO2020256394A1 (ko) | 복합재의 제조 방법 및 복합재 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201480021908.9 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14785862 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14785219 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 14785862 Country of ref document: EP Kind code of ref document: A1 |