Detergent composition, detergent and method for regenerating an aluminum hydroxide-based lithium sorbent

Abstract

The present application relates to the field of aluminum hydroxide-based lithium adsorbent, and discloses a cleaning agent composition, a cleaning agent and a regeneration method of aluminum hydroxide-based lithium adsorbent. The cleaning agent composition of the present application contains an aluminum flocculant, an ammonium salt, lithium chloride, a citrate, an acid and an emulsifier. The cleaning agent of the present application ensures the cleaning effect, and the adsorption performance of the cleaned adsorbent can be restored to more than 96% of the original adsorption capacity, and the adsorbent has no obvious solution loss.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aluminum hydroxide-based lithium adsorbent, in particular to a cleaning agent composition, a cleaning agent and a regeneration method of aluminum hydroxide-based lithium adsorbent. BACKGROUND

[0002] With the rapid development of new energy and new material industries, lithium is widely used in high-energy batteries, aerospace, nuclear fusion power generation, metallurgy, petrochemical industry and other fields, and the demand continues to increase, which promotes the rapid rise of lithium carbonate price.

[0003] 75-80% of lithium chloride, lithium carbonate and its derivatives are produced from brine. Adsorption method is one of the effective methods for extracting lithium from brine, and aluminum hydroxide-based lithium adsorbent is the only adsorbent that has been industrialized for extracting lithium from brine by adsorption method. No matter what method is used for preparation, the main component of the basic skeleton of the adsorbent is aluminum hydroxide, so here the adsorbent is called aluminum hydroxide-based lithium adsorbent. The adsorbent has low preparation cost, and the cost of raw materials and preparation process is relatively low. However, during actual use, due to the presence of suspended solids and some impurities, silt and the like in the brine, if not filtered clean, they will often be adsorbed onto the resin, and over time, the resin surface will turn yellow and discolor, and the adsorption capacity will decrease. At this time, the adsorbent needs to be cleaned to restore the original adsorption capacity of the adsorbent. There are a few methods for cleaning aluminum-based adsorbents used for lithium extraction from salt lakes in the prior art, which use organic solvents or acids for cleaning. However, these methods not only easily damage the structure of the adsorbent and reduce the service life of the adsorbent, but also cannot guarantee the cleaning effect. SUMMARY

[0004] The purpose of the present application is to overcome the above-mentioned problems existing in the prior art, and to provide a cleaning agent composition for aluminum-based adsorbents used for lithium extraction from salt lakes, a cleaning agent and a regeneration method of aluminum hydroxide-based lithium adsorbent. The cleaning agent of the present application ensures the cleaning effect, and the adsorption performance of the cleaned adsorbent can be restored to more than 96% of the original adsorption capacity, and the adsorbent has no obvious dissolution loss.

[0005] The inventors of the present application have conducted in-depth research on the stains on the adsorbent in natural neutral brine, and found that the stains include sludge, colloid, precipitated particulate matter, organic small molecules, etc. For these stains, the inventors have further found that the aluminum flocculant can adsorb the sludge small molecules on the surface of the resin and aggregate and settle in water to remove, the ammonium salt can complex and dissolve to remove part of the colloid on the surface of the adsorbent, the emulsifier has a strong effect of emulsifying and dispersing the stains on the surface of the adsorbent, the citrate acts as a detergent to help reduce the interference of calcium and magnesium ions in water on cleaning, the lithium chloride can inhibit the decomposition of the adsorbent during cleaning to avoid the dissolution loss of the adsorbent, the acid improves the slightly acidic environment, which is beneficial to reducing the soaking and cleaning time and dissolving part of the alkaline colloid to strengthen the cleaning and impurity removal effect while not damaging the structure of the adsorbent. Through the synergistic effect of the above components, the cleaning effect can be ensured while avoiding the dissolution loss of the adsorbent, and the adsorption performance of the cleaned adsorbent can be restored to more than 96% of the original adsorption capacity, and the adsorbent has no obvious dissolution loss. Thus, the present application is completed.

[0006] Therefore, in a first aspect, the present application provides a cleaning agent composition, wherein the cleaning agent composition contains an aluminum flocculant, an ammonium salt, lithium chloride, a citrate, an acid and an emulsifier.

[0007] Preferably, the aluminum flocculant is one or more of polyaluminum chloride, polyaluminum sulfate and polyaluminum sulfate chloride, and is preferably polyaluminum chloride.

[0008] Preferably, the ammonium salt is ammonium chloride and / or ammonium sulfate, and is preferably ammonium chloride.

[0009] Preferably, the citrate is one or more of sodium citrate, potassium citrate and ammonium citrate, and is preferably ammonium citrate.

[0010] Preferably, the acid is one or more of citric acid, sulfamic acid and oxalic acid, and is preferably citric acid.

[0011] Preferably, the emulsifier is one or more of fatty alcohol polyoxyethylene ether, polyethylene glycol and sodium oleate, and is preferably fatty alcohol polyoxyethylene ether, and more preferably perpass.

[0012] Preferably, the cleaning agent composition contains 1-30 g of aluminum flocculant, 10-40 g of ammonium salt, 0.1-1 g of lithium chloride, 1-3 g of citrate, 1-3 g of acid and 0.1-0.5 g of emulsifier; more preferably, the cleaning agent composition contains 5-20 g of aluminum flocculant, 15-35 g of ammonium salt, 0.3-0.8 g of lithium chloride, 1.5-2.8 g of citrate, 1.5-2.6 g of acid and 0.2-0.4 g of emulsifier.

[0013] According to a second aspect of the present application, there is provided a cleaning agent, wherein the cleaning agent is obtained by mixing the cleaning agent composition according to the first aspect of the present application with a solvent.

[0014] Preferably, the solvent is used in an amount such that the cleaning agent contains 1-30 g / L of the aluminum flocculant, 10-40 g / L of the ammonium salt, 0.1-1 g / L of the lithium chloride, 1-3 g / L of the citrate, 1-3 g / L of the acid, and 0.1-0.5 g / L of the emulsifier.

[0015] Preferably, the solvent is water and / or ethanol, more preferably water.

[0016] According to a third aspect of the present application, there is provided a cleaning agent, wherein the cleaning agent contains an aluminum flocculant, an ammonium salt, a lithium chloride, a citrate, an acid, an emulsifier, and a solvent.

[0017] Preferably, the aluminum flocculant is one or more of polyaluminum chloride, polyaluminum sulfate, and polyaluminum-sulfur chloride, preferably polyaluminum chloride.

[0018] Preferably, the ammonium salt is ammonium chloride and / or ammonium sulfate, preferably ammonium chloride.

[0019] Preferably, the citrate is one or more of sodium citrate, potassium citrate, and ammonium citrate, preferably ammonium citrate.

[0020] Preferably, the acid is one or more of citric acid, sulfamic acid, and oxalic acid, preferably citric acid.

[0021] Preferably, the emulsifier is one or more of fatty alcohol polyoxyethylene ether, polyethylene glycol, and sodium oleate, preferably fatty alcohol polyoxyethylene ether, more preferably percol.

[0022] Preferably, the cleaning agent contains 1-30 g / L of the aluminum flocculant, 10-40 g / L of the ammonium salt, 0.1-1 g / L of the lithium chloride, 1-3 g / L of the citrate, 1-3 g / L of the acid, and 0.1-0.5 g / L of the emulsifier; more preferably, the cleaning agent contains 5-20 g / L of polyaluminum chloride, 15-35 g / L of the ammonium salt, 0.3-0.8 g / L of the lithium chloride, 1.5-2.8 g / L of the citrate, 1.5-2.6 g / L of the acid, and 0.2-0.4 g / L of the emulsifier.

[0023] Preferably, the solvent is water and / or ethanol, more preferably water.

[0024] According to a fourth aspect of the present application, there is provided a method for regenerating an aluminum hydroxide-based lithium adsorbent, the method comprising the step of contacting a cleaning agent with the aluminum hydroxide-based lithium adsorbent, wherein the adsorbent is the cleaning agent of the second and third aspects of the present application.

[0025] By the above technical solution, the cleaning agent of the present application can ensure the cleaning effect, and the adsorption performance of the cleaned adsorbent can be restored to more than 96% of the original adsorption capacity, and the adsorbent has no obvious dissolution loss.

[0026] Furthermore, the preferred technical solution of the present application can effectively avoid further contamination of the adsorbent by impurity ions. DETAILED DESCRIPTION

[0027] The endpoints of the ranges and any values disclosed herein are not limited to the precise values recited as the exact dimensions are not considered critical for the present application. The ranges and values are approximations that are intended to convey the scope of the application. The endpoints of the ranges and values are provided as a separate point for the convenience of the reader. The ranges and values are approximate values that are intended to convey the scope of the application. The endpoints of the ranges and values are provided as a separate point for the convenience of the reader. The ranges and values are approximate values that are intended to convey the scope of the application.

[0028] According to a first aspect of the present application, there is provided a cleaning agent composition, wherein the cleaning agent composition contains an aluminum flocculant, an ammonium salt, lithium chloride, a citrate, an acid, and an emulsifier.

[0029] For the stains (sludge, colloids, precipitated particulate matter, organic small molecules, etc.) adsorbed on the adsorbent in natural neutral brine, the present application can adsorb the sludge small molecules on the surface of the resin and remove them by aggregation and sedimentation in water, the ammonium salt can complex and remove part of the colloids on the surface of the adsorbent, the emulsifier has a strong effect of emulsifying and dispersing the stains on the surface of the adsorbent, the citrate as a detergent helps to reduce the interference of calcium and magnesium ions in water on cleaning, the lithium chloride can inhibit the decomposition of the adsorbent during cleaning, avoiding the dissolution loss of the adsorbent, the acid improves the slightly acidic environment, which is beneficial to reducing the soaking and cleaning time and dissolving part of the alkaline colloids to strengthen the cleaning and impurity removal effect, through the synergistic effect of the above components, the adsorbent can be prevented from being dissolved and the adsorption performance of the cleaned adsorbent can be restored to more than 96% of the original adsorption capacity, and the adsorbent has no obvious dissolution loss, thereby completing the present application.

[0030] According to the present application, the aluminum flocculant is used to adsorb the sludge small molecules on the surface of the resin and remove them by aggregation and sedimentation in water, and as such an aluminum flocculant, for example, one or more of polyaluminum chloride, polyaluminum sulfate, and polyaluminum sulfate chloride can be used. Among them, from the consideration of not introducing impurities, polyaluminum chloride is preferred.

[0031] According to the present application, the ammonium salt is used to complex and dissolve part of the colloids on the surface of the adsorbent. Preferably, the ammonium salt is ammonium chloride and / or ammonium sulfate. From the aspect of not introducing impurities, it is further preferred to be ammonium chloride.

[0032] According to the present application, the citrate salt helps to reduce the interference of calcium and magnesium ions in water on cleaning as a builder. Preferably, the citrate salt is one or more of sodium citrate, potassium citrate and ammonium citrate. From the aspect of increasing ammonium ions and improving the impurity removal capability, it is more preferred to be ammonium citrate.

[0033] Preferably, the acid is used to increase the slightly acidic environment, which is conducive to reducing the soaking cleaning time and dissolving part of the alkaline colloids to strengthen the cleaning effect of impurity removal without damaging the structure of the adsorbent. As such acids can be one or more of citric acid, sulfamic acid and oxalic acid, preferably citric acid.

[0034] Preferably, the emulsifier is one or more of fatty alcohol polyoxyethylene ether, polyethylene glycol and sodium oleate, more preferably fatty alcohol polyoxyethylene ether.

[0035] As the above-mentioned polyethylene glycol, for example, polyethylene glycol 2000 and the like can be mentioned.

[0036] As the above-mentioned fatty alcohol polyoxyethylene ether, it is preferably a peregal, more preferably peregal 0-25.

[0037] According to the present application, preferably, the cleaning agent composition contains 1-30 g of aluminum-based flocculant, 10-40 g of ammonium salt, 0.1-1 g of lithium chloride, 1-3 g of citrate salt, 1-3 g of acid and 0.1-0.5 g of emulsifier; more preferably, the cleaning agent composition contains 5-20 g of aluminum-based flocculant, 15-35 g of ammonium salt, 0.3-0.8 g of lithium chloride, 1.5-2.8 g of citrate salt, 1.5-2.6 g of acid and 0.2-0.4 g of emulsifier. By using in the above-mentioned preferred range, the adsorption performance of the adsorbent after cleaning can be further improved.

[0038] According to the second aspect of the present application, a cleaning agent is provided, wherein the cleaning agent is obtained by mixing the cleaning agent composition according to the first aspect of the present application with a solvent.

[0039] Preferably, the solvent is used in an amount such that the cleaning agent contains 1 to 30 g / L of the aluminum flocculant, 10 to 40 g / L of the ammonium salt, 0.1 to 1 g / L of the lithium chloride, 1 to 3 g / L of the citrate, 1 to 3 g / L of the acid, and 0.1 to 0.5 g / L of the emulsifier; more preferably, the cleaning agent contains 5 to 20 g / L of the polyaluminum chloride, 15 to 35 g / L of the ammonium salt, 0.3 to 0.8 g / L of the lithium chloride, 1.5 to 2.8 g / L of the citrate, 1.5 to 2.6 g / L of the acid, and 0.2 to 0.4 g / L of the emulsifier. By using within the above preferable ranges, the adsorption performance of the cleaned adsorbent can be further improved.

[0040] Preferably, the solvent is water and / or ethanol, more preferably water.

[0041] According to the third aspect of the present application, there is provided a cleaning agent, wherein the cleaning agent contains an aluminum flocculant, an ammonium salt, a lithium chloride, a citrate, an acid, an emulsifier, and a solvent.

[0042] According to the present application, the aluminum flocculant is used to adsorb small molecules of sludge on the surface of the adsorbent resin and to aggregate and settle in water for removal. As such an aluminum flocculant, for example, one or more of polyaluminum chloride, polyaluminum sulfate, and polyaluminum sulfate chloride can be used. Of these, polyaluminum chloride is preferred in terms of not introducing impurities.

[0043] According to the present application, the ammonium salt is used to complex and remove part of the colloid on the surface of the adsorbent. Preferably, the ammonium salt is ammonium chloride and / or ammonium sulfate. In terms of not introducing impurities, ammonium chloride is further preferred.

[0044] According to the present application, the citrate serves as a detergent to help reduce the interference of calcium and magnesium ions in water with cleaning. Preferably, the citrate is one or more of sodium citrate, potassium citrate, and ammonium citrate. In terms of increasing ammonium ions and improving the impurity removal capability, ammonium citrate is more preferred.

[0045] Preferably, the acid is used to increase the slightly acidic environment, which is advantageous for reducing the soaking cleaning time and dissolving part of the alkaline colloid to strengthen the cleaning and impurity removal effect without damaging the structure of the adsorbent. As such an acid, one or more of citric acid, sulfamic acid, and oxalic acid can be used, with citric acid being preferred.

[0046] Preferably, the emulsifier is one or more of fatty alcohol polyoxyethylene ether, polyethylene glycol, and sodium oleate, more preferably fatty alcohol polyoxyethylene ether.

[0047] As the above polyethylene glycol, for example, polyethylene glycol 2000 or the like can be mentioned.

[0048] As the above fatty alcohol polyoxyethylene ether, preferably, it is PEG, more preferably PEG 0-25.

[0049] According to the present application, preferably, the cleaning agent contains 1-30 g / L of aluminum flocculant, 10-40 g / L of ammonium salt, 0.1-1 g / L of lithium chloride, 1-3 g / L of citrate, 1-3 g / L of acid and 0.1-0.5 g / L of emulsifier; more preferably, the cleaning agent contains 5-20 g / L of polyaluminum chloride, 15-35 g / L of ammonium salt, 0.3-0.8 g / L of lithium chloride, 1.5-2.8 g / L of citrate, 1.5-2.6 g / L of acid and 0.2-0.4 g / L of emulsifier. By using in the above preferred range, the adsorption performance of the cleaned adsorbent can be further improved.

[0050] According to the present application, preferably, the solvent is water and / or ethanol, more preferably water.

[0051] According to the fourth aspect of the present application, there is provided a method for regenerating an aluminum hydroxide-based lithium adsorbent, the method comprising the step of contacting a cleaning agent with the aluminum hydroxide-based lithium adsorbent, wherein the adsorbent is the cleaning agent according to the second and third aspects of the present application.

[0052] According to the present application, the aluminum hydroxide-based lithium adsorbent can be any of the various aluminum hydroxide-based lithium adsorbents commonly used in the art for adsorbing lithium from brine, for example, can be the aluminum adsorbent available from Blueko Lithium Industry, Wukaike aluminum adsorbent, etc.

[0053] According to the present application, the conditions for cleaning are not particularly limited, for example, the temperature for cleaning can be 40-50°C, the time for cleaning can be more than 10 min, preferably 10-100 min, more preferably 10-30 min.

[0054] The manner of contacting is also not particularly limited, for example, the aluminum hydroxide-based lithium adsorbent can be immersed in the cleaning agent, or the cleaning agent can be passed through the aluminum hydroxide-based lithium adsorbent.

[0055] In a preferred embodiment of the present application, the method for regenerating the aluminum hydroxide-based lithium adsorbent comprises the steps of,

[0056] 1) the step of preparing a cleaning agent;

[0057] 2) the step of heating the cleaning agent to 40-50°C;

[0058] 3) the step of cleaning by passing the cleaning agent through the adsorption column containing the adsorbent at a speed of 2-10 BV / h;

[0059] 4) the step of cleaning the residual cleaning agent impurities by passing deionized water at 40-50°C into the adsorption column at a speed of 5-15 BV / h.

[0060] The washing time in step 3) above can be, for example, 20-60 min.

[0061] The washing time in step 4) above can be, for example, 10-30 min.

[0062] The present application will be described in detail below by way of examples, but the present application is not limited to the following examples.

[0063] In the following examples and comparative examples, the adsorbent was an aluminum hydroxide-based lithium adsorbent (purchased from Lanke Lithium Industry Co., Ltd.). The aluminum hydroxide-based lithium adsorbent was off-white in appearance before contamination, and yellow in appearance after contamination, with a small amount of brown.

[0064] Example 1

[0065] 1) The cleaning agent was prepared according to the following formulation:

[0066] 2) The cleaning agent was heated to 45°C;

[0067] 3) The cleaning agent was passed through the adsorption column containing the adsorbent at a speed of 5 BV / h for 40 min;

[0068] 4) The adsorption column was washed with deionized water at 45°C at a speed of 10 BV / h for 15 min.

[0069] The cleaning agent formulation (solvent: water): polyaluminum chloride: 10 g / L, ammonium chloride: 27 g / L, lithium chloride: 0.5 g / L, ammonium citrate: 2 g / L, citric acid: 2 g / L, Pergal O-25: 0.2 g / L.

[0070] The appearance of the adsorbent after cleaning is shown in Table 1.

[0071] Example 2

[0072] The method of Example 1 was followed, except that the cleaning agent formulation was as follows.

[0073] The cleaning agent formulation (solvent: water): polyaluminum chloride: 1 g / L, ammonium chloride: 10 g / L, lithium chloride: 0.1 g / L, ammonium citrate: 1 g / L, citric acid: 1 g / L, Pergal O-25: 0.1 g / L.

[0074] The appearance of the adsorbent after cleaning is shown in Table 1.

[0075] Example 3

[0076] The method of Example 1 was followed, except that the cleaning agent formulation was as follows.

[0077] Washing agent formulation (solvent: water): polyaluminum chloride: 30 g / L, ammonium chloride: 40 g / L, lithium chloride: 1 g / L, ammonium citrate: 3 g / L, citric acid: 3 g / L, peregal O-25: 0.5 g / L.

[0078] The appearance of the washed adsorbent is shown in Table 1.

[0079] Example 4

[0080] The procedure of Example 1 was followed except that the washing agent formulation was as follows.

[0081] Washing agent formulation (solvent: water): polyaluminum chloride: 30 g / L, ammonium chloride: 40 g / L, lithium chloride: 1 g / L, ammonium citrate: 3 g / L, citric acid: 3 g / L, peregal O-25: 0.5 g / L.

[0082] Example 5

[0083] The procedure of Example 1 was followed except that the washing agent formulation was as follows.

[0084] Washing agent formulation (solvent: water): polyaluminum chloride: 30 g / L, ammonium chloride: 40 g / L, lithium chloride: 1 g / L, ammonium citrate: 3 g / L, citric acid: 3 g / L, peregal O-25: 0.5 g / L.

[0085] The appearance of the washed adsorbent is shown in Table 1.

[0086] Example 6

[0087] The procedure of Example 1 was followed except that the washing agent formulation was as follows.

[0088] Washing agent formulation (solvent: water): polyaluminum chloride: 30 g / L, ammonium chloride: 40 g / L, lithium chloride: 1 g / L, ammonium citrate: 3 g / L, citric acid: 3 g / L, peregal O-25: 0.5 g / L.

[0089] The appearance of the washed adsorbent is shown in Table 1.

[0090] Comparative Example 1

[0091] The procedure of Example 1 was followed except that the washing agent did not contain polyaluminum chloride and ammonium chloride.

[0092] The appearance of the washed adsorbent is shown in Table 1.

[0093] Comparative Example 2

[0094] The procedure of Example 1 was followed except that the washing agent did not contain lithium chloride.

[0095] The appearance of the washed adsorbent is shown in Table 1.

[0096] Comparative Example 3

[0097] The method of Example 1 was followed, except that the cleaning agent did not contain citric acid.

[0098] The appearance of the washed adsorbent is shown in Table 1.

[0099] Comparative Example 4

[0100] The method of Example 1 in CN112691654A was followed for washing.

[0101] The appearance of the washed adsorbent is shown in Table 1.

[0102] Test Example 1

[0103] Method for testing adsorption capacity: 50 grams of new adsorbent (purchased from Blue Lithium Industry aluminum adsorbent), the adsorbent after washing in Examples 1-5 and Comparative Examples 1-4 were respectively placed in a glass column to form a small adsorption column, then 350 milliliters of brine containing lithium (lithium ion content 280 mg / L) was passed through the column at a flow rate of 2 BV / h using a peristaltic pump, then the lithium content of the tail liquid discharged after the test adsorbent was adsorbed was collected, and the adsorption capacity was calculated according to the following formula, and the results are shown in Table 1.

[0104] Adsorption capacity (mg / g) = 0.35 x (280 - lithium content of tail liquid) ÷ 50

[0105] Method for detecting adsorbent dissolution: the cleaning agent or water washing water after washing was filtered through a bag filter or filter bag with a precision of 10 microns, and after filtration, the surface of the filter bag was checked for the presence of particulate matter or precipitate, if none, and the appearance of the adsorbent had no obvious change, it was judged that there was no structural damage. If the appearance becomes dull or rough, and the filter bag has particulate matter dissolved, it is judged that the structure is damaged.

[0106] Table 1

[0107]

[0108] From Examples 1-6, it can be seen that after cleaning with the cleaning agent, the washed adsorbent can basically restore the original appearance of the adsorbent and have an adsorption performance of more than 96%, while not damaging the original adsorbent structure.

[0109] By comparing Examples 1-3 and Example 4, it can be seen that by having the cleaning agent contain 1-30 g / L of aluminum flocculant, 10-40 g / L of ammonium salt, 0.1-1 g / L of lithium chloride, 1-3 g / L of citrate, 1-3 g / L of acid and 0.1-0.5 g / L of emulsifier, the adsorption performance of the washed adsorbent can be further improved.

[0110] By comparing Example 1 and Comparative Example 1, it can be seen that the cleaning agent does not contain polyaluminum chloride and ammonium chloride, and the adsorption performance of the cleaned adsorbent is significantly reduced.

[0111] By comparing Example 1 and Comparative Example 2, it can be seen that the cleaning agent does not contain lithium chloride, and the adsorption performance of the cleaned adsorbent is reduced, and the dissolution loss is obvious.

[0112] By comparing Example 1 and Comparative Example 3, it can be seen that the cleaning agent does not contain citric acid, and the adsorption performance of the cleaned adsorbent is reduced.

[0113] By comparing Example 1 and Comparative Example 4, it can be seen that the adsorption performance of the cleaned adsorbent in Comparative Example 4 is significantly reduced, and the dissolution loss is obvious.

[0114] The preferred embodiments of the application are described in detail above, but the application is not limited thereto. Within the technical concept of the application, various simple modifications can be made to the technical solutions of the application, including the combination of various technical features in any other suitable manner. These simple modifications and combinations should also be considered as disclosed by the application and fall within the protection scope of the application.

Claims

1. A cleaning agent composition characterized by, The cleaning agent composition contains an aluminum flocculant, an ammonium salt, lithium chloride, a citrate, an acid, and an emulsifier, The cleaning agent composition contains 1-30 g of the aluminum flocculant, 10-40 g of the ammonium salt, 0.1-1 g of lithium chloride, 1-3 g of the citrate, 1-3 g of the acid, and 0.1-0.5 g of the emulsifier, The aluminum flocculant is one or more of polyaluminum chloride, polyaluminum sulfate, and polyaluminum sulfur chloride, The ammonium salt is ammonium chloride and / or ammonium sulfate, The citrate is one or more of sodium citrate, potassium citrate, and ammonium citrate, The acid is one or more of citric acid, sulfamic acid, and oxalic acid, The emulsifier is one or more of a fatty alcohol polyoxyethylene ether, polyethylene glycol, and sodium oleate.

2. The cleaning agent composition according to claim 1, wherein, The aluminum flocculant is polyaluminum chloride.

3. The cleaning agent composition according to claim 1, wherein, The ammonium salt is ammonium chloride.

4. The cleaning agent composition according to claim 1, wherein, The citrate is ammonium citrate.

5. The cleaning agent composition according to claim 1, wherein, The acid is citric acid.

6. The cleaning agent composition according to claim 1, wherein, The emulsifier is a fatty alcohol polyoxyethylene ether.

7. The cleaning agent composition of claim 1, wherein, The cleaning agent composition contains 5-20 g of the aluminum flocculant, 15-35 g of the ammonium salt, 0.3-0.8 g of lithium chloride, 1.5-2.8 g of the citrate, 1.5-2.6 g of the acid, and 0.2-0.4 g of the emulsifier.

8. A cleaning agent characterized by, The cleaning agent contains an aluminum flocculant, an ammonium salt, lithium chloride, a citrate, an acid, an emulsifier, and a solvent, The cleaning agent contains 1-30 g / L of the aluminum flocculant, 10-40 g / L of the ammonium salt, 0.1-1 g / L of lithium chloride, 1-3 g / L of the citrate, 1-3 g / L of the acid, and 0.1-0.5 g / L of the emulsifier, The aluminum flocculant is one or more of polyaluminum chloride, polyaluminum sulfate, and polyaluminum sulfur chloride, The ammonium salt is ammonium chloride and / or ammonium sulfate, The citrate is one or more of sodium citrate, potassium citrate, and ammonium citrate, The acid is one or more of citric acid, sulfamic acid, and oxalic acid, The emulsifier is one or more of a fatty alcohol polyoxyethylene ether, polyethylene glycol, and sodium oleate, The solvent is water and / or ethanol.

9. The cleaning agent according to claim 8, wherein, The aluminum flocculant is polyaluminum chloride.

10. The cleaning agent of claim 8, wherein, The ammonium salt is ammonium chloride.

11. The cleaning agent of claim 8, wherein, The citrate is ammonium citrate.

12. The cleaning agent of claim 8, wherein, The acid is citric acid.

13. The cleaning agent of claim 8, wherein, The emulsifier is a fatty alcohol polyoxyethylene ether.

14. The cleaning agent of claim 8, wherein, The cleaning agent contains 5-20 g / L of polyaluminum chloride, 15-35 g / L of the ammonium salt, 0.3-0.8 g / L of lithium chloride, 1.5-2.8 g / L of the citrate, 1.5-2.6 g / L of the acid, and 0.2-0.4 g / L of the emulsifier.

15. The cleaning agent according to any one of claims 8 to 14, wherein, The solvent is water.

16. A method of regenerating an aluminum hydroxide-based lithium sorbent, the method of regenerating comprising the step of contacting a cleaning agent with the aluminum hydroxide-based lithium sorbent, characterized in that, The cleaning agent is the cleaning agent according to any one of claims 8-15.

Images