Method for removing antimony by using alcamines adsorbent resin

Abstract

The invention discloses a method for removing antimony by using alcamines adsorbent resin, and belongs to the field of environmental protection. The method comprises the following specific steps: adjusting the pH value of a solution containing antimony ions to 1-11, and then adding alcohol amine adsorption resin into the solution to adsorb the antimony ions in the solution; and after the alcamines adsorption resin is saturated in adsorption, eluting, concentrating, separating and regenerating the antimony loaded on the alcamines adsorption resin by using an eluent, so as to remove the antimony. The alcamines adsorbent resin is a resin material with a polyhydroxy structure on the surface obtained by modifying the surface of a base material, can efficiently adsorb antimony from an antimony-containing solution, has higher adsorption capacity, and can meet the filling use requirements of industrial adsorption columns. The raw materials are wide in source and low in cost; the material is simple to prepare, antimony can be efficiently and selectively removed in the adsorption process, and the adsorbent is high in regeneration capacity and has wide application value.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental protection, and relates to a method for removing antimony by using an alcohol amine adsorption resin, in particular to a method for selectively removing antimony from an antimony-containing solution by using an adsorption resin having multiple hydroxy groups on the surface. Background Art

[0002] As a strategic metal, antimony has been widely used in flame retardants, alloys, ceramics, pigments and synthetic fibers. With the development and application of antimony, the problem of antimony pollution has become increasingly serious. Moreover, antimony is also a highly toxic pollutant that has a negative impact on human health. When its concentration exceeds the allowable limit of drinking water, it can cause fatal and carcinogenic toxicity. There is an urgent need to develop economical and efficient antimony pollution treatment technology.

[0003] At present, the methods for removing antimony from wastewater include chemical precipitation, ion exchange, membrane filtration, adsorption, etc. Among these common technologies, adsorption is the best method for treating antimony because of its simple operation, safety, low cost and high efficiency. In addition, adsorption technology is suitable for the treatment of low-concentration metal ions. The most critical part of the adsorption method is the adsorbent. In order to cope with the high demand for antimony in industrial life and production and reduce the environmental pollution caused by antimony, it is very important to design high-efficiency alcohol amine adsorption resins to remove antimony.

[0004] Alcoholamine compounds contain both amino groups and hydroxyl groups, so they have the comprehensive properties of amines and alcohols and are an important basic chemical raw material. When the amino groups and hydroxyl groups in alcoholamine compounds are used as functional groups to adsorb metal ions, they can be ion exchanged or coordinated with them, which provides a theoretical basis for the use of alcoholamine compound-derived adsorbents in water treatment. The functional groups on alcoholamine compounds also have an adsorption effect on highly toxic antimony. The key to efficient removal of antimony is to concentrate the functional groups of alcoholamine compounds on the surface of the adsorbent material as much as possible to shorten the diffusion process of antimony in the adsorbent material. In order to achieve this goal, the present application uses ionizing radiation grafting or chemical grafting in the structural design of the adsorbent material, first introduces an unsaturated monomer containing an epoxy group or a halogen onto a substrate, and then reacts the grafted substrate with an alcoholamine compound to obtain a target adsorption and separation material. The adsorption and separation material obtained by this method is particularly suitable for efficient adsorption of low-concentration antimony. Therefore, the development of alcoholamine adsorption resins for efficient removal of antimony is of great significance to environmental protection and human health. Summary of the invention

[0005] The technical problem solved by the present invention is to provide a method for removing antimony by using an alcoholamine adsorption resin. In view of the problems existing in the above-mentioned prior art, the present invention uses an ionizing radiation grafting or a chemical grafting method to first introduce an unsaturated monomer containing an epoxy group or a halogen onto a substrate, and then reacts the grafted substrate with an alcoholamine compound to obtain an alcoholamine adsorption resin, and then uses the alcoholamine adsorption resin to adsorb antimony ions in a solution containing antimony ions, thereby achieving efficient adsorption of antimony, which is conducive to faster and more efficient removal of antimony.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A method for removing antimony using an alcoholamine adsorption resin comprises the following steps:

[0008] Step 1): Adsorption: adjusting the solution containing antimony ions to pH=1-11, and then adding an alcoholamine adsorption resin to the solution to adsorb the antimony ions in the solution;

[0009] Step 2): Elution: In the above step 1), after the alcoholamine adsorption resin is saturated with adsorption, an elution liquid is used to elute, concentrate, separate and regenerate the antimony loaded on the alcoholamine adsorption resin to achieve the removal of antimony.

[0010] In the above step 1), the alcoholamine adsorption resin is a resin material having a polyhydroxy structure on the surface obtained by modifying the surface of a substrate.

[0011] The preparation method of the alcoholamine adsorption resin comprises the following steps:

[0012] Step (a): using an ionizing radiation grafting method or a chemical grafting method to perform surface treatment on the substrate; wherein the irradiation dose of the ionizing radiation is 5-50 kGy;

[0013] Step (b): grafting an unsaturated monomer emulsion containing epoxy groups onto the surface of the substrate to modify the substrate, or grafting an unsaturated monomer emulsion containing halogens onto the surface of the substrate to modify the substrate, thereby forming a functional intermediate;

[0014] The mass ratio of the substrate to the epoxy group or halogen unsaturated monomer emulsion is 1-2:5-20; the epoxy group or halogen unsaturated monomer emulsion contains 30% of unsaturated monomer and 3% of surfactant;

[0015] Step (c): then further introducing an alcoholamine compound having a polyhydroxy structure on the surface of the functional intermediate through epoxy ring opening, or further introducing an alcoholamine compound having a polyhydroxy structure on the surface of the polymer substrate through a halogenation reaction, and finally obtaining an alcoholamine adsorption resin;

[0016] The mass ratio of the functional intermediate to the alcohol amine compound is 1-2:10-20.

[0017] In the above step (a), the substrate is selected from a copolymer: one of polyethylene, polypropylene, polystyrene, polystyrene-divinylbenzene copolymer, ethylene-vinyl alcohol copolymer, polyvinylidene fluoride, polyvinyl butyral, poly(methyl)acrylate, poly(ethyl)acrylate, poly(propyl)acrylate, poly(meth)acrylate, or a polymer substrate: one of cellulose, lignin, chitosan, and polyamide.

[0018] In the above step (b), the unsaturated monomer containing epoxy group or halogen is one of glycidyl methacrylate GMA, allyl alcohol glycidyl ether, glycidyl acrylate, chloroethyl methacrylate, chloroethyl acrylate, and chloromethylstyrene.

[0019] In the above step (c), the alcoholamine compound with a polyhydroxy structure is selected from one of N-methyl-glucoseamine, ethanolamine, diethanolamine, methyldiethanolamine, 2-aminoethanol, triethanolamine, diisopropanolamine, triisopropanolamine, 3-amino-1,2-propylene glycol, N,N-dimethylpropanolamine, and isobutanolamine.

[0020] In the above step (b), the mass ratio of the substrate to the unsaturated monomer emulsion of epoxy group or halogen is 1:10; in the above step (c), the mass ratio of the functional intermediate to the alcohol amine compound is 1:20.

[0021] In the above step (c), the obtained alcoholamine adsorption resin having a polyhydroxy structure on the surface is spherical, fibrous or film-like; the average particle size of the spherical alcoholamine adsorption resin is between 100 and 1500 microns.

[0022] In the above step 1), the solution containing antimony ions mainly includes the leaching solution of stibnite, stibnite, antimony ochre, or antimony-containing groundwater.

[0023] In the above step 2), the eluent is 0.05 mol / L to 5 mol / L hydrochloric acid.

[0024] The advantages of the present invention compared with the prior art are:

[0025] 1. The surface of the alcoholamine adsorption resin synthesized in this scheme is a polyhydroxy structure, so it has a strong force on antimony. The alcoholamine adsorption resin of the present invention introduces alcoholamine compounds on the substrate, which can exchange ions with antimony on the one hand; on the other hand, it can coordinate with antimony through the synergistic effect of polyhydroxy groups, thereby achieving efficient adsorption of antimony;

[0026] 2. In this scheme, based on the method of the present invention, an adsorption resin having a multi-hydroxy structure on the surface is used to remove antimony from an antimony-containing solution, thereby achieving efficient and selective adsorption of antimony in the solution; the alcoholamine adsorption resin can provide more active adsorption sites for the target adsorbed antimony ions, which is conducive to faster and more efficient removal of antimony;

[0027] 3. Compared with the existing technology, the advantages of this solution are as follows:

[0028] 1) The material preparation is simple, the raw materials are cheap and readily available, and the preparation process is environmentally friendly;

[0029] 2) The provided alcoholamine adsorption resin has a strong effect on antimony;

[0030] 3) The provided alcoholamine adsorption resin has excellent selectivity and reusability for antimony;

[0031] 4) The particle size of the spherical alcohol amine adsorption resin provided can reach 100 to 1500 microns, meeting the requirements for filling and use of industrial adsorption columns;

[0032] 5) The removal process of antimony by amine adsorption resin is simple and can remove antimony efficiently and selectively, making it suitable for industrial promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The synthetic route of the alcoholamine adsorption resin in the present invention is as follows;

[0034] Figure 2 This is a graph showing the adsorption results of Sb(III) by the alcoholamine adsorption resin at different pH values ​​in an embodiment of the present invention;

[0035] Figure 3 This is a graph showing the adsorption results of Sb(V) by the alcoholamine adsorption resin at different pH values ​​in an embodiment of the present invention;

[0036] Figure 4 This is a graph showing the adsorption results of different concentrations of Sb(III) by the alcoholamine adsorption resin in an embodiment of the present invention.

[0037] Figure 5 The adsorption result of different concentrations of Sb(V) by the alcoholamine adsorption resin in the embodiment of the present invention is shown in FIG.

[0038] Figure 6 This is an experimental diagram of the repeated utilization of antimony by the alcohol amine adsorption resin in an embodiment of the present invention;

[0039] Figure 7 This is a static adsorption experiment diagram of antimony in mine water by alcohol amine adsorption resin in an embodiment of the present invention;

[0040] Figure 8This is a dynamic adsorption experiment diagram of antimony in mine water by alcohol amine adsorption resin in an embodiment of the present invention;

[0041] Fig. 9 This is a diagram of the dynamic elution experiment of antimony in mine water by the alcohol amine adsorption resin in the embodiment of the present invention. DETAILED DESCRIPTION

[0042] In order to highlight the purpose, technical solutions and advantages of the present invention, the following Figure 1-9 The present invention is further described in the following embodiments. It should be understood that the embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, after reading the contents of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to the present application.

[0043] Based on the method of the present invention, in the specific operation, it can be divided into two steps: adsorption and elution. Specifically, an alcohol amine adsorption resin is added to the solution containing antimony ions to adsorb antimony (or the solution containing antimony is flowed into an adsorption column filled with alcohol amine adsorption resin material through a peristaltic pump); after the adsorption is completed, the antimony loaded on the alcohol amine adsorption resin is eluted and separated using a corresponding eluent.

[0044] The experimental methods described in the following examples are conventional methods unless otherwise specified; the reagents and materials described are commercially available unless otherwise specified.

[0045] Example 1: Synthesis of Alcoholamine Adsorption Resin I

[0046] Select N-methyl-glucose from the alcoholamine compounds as the functional monomer to synthesize the alcoholamine adsorption resin. The synthesis route is as follows: Figure 1 As shown. 5.00g of microcrystalline cellulose microspheres (MCC) were vacuum sealed and passed through a 1MeV electron beam accelerator under dry ice cooling (irradiation dose rate of 10kGy / pass, irradiation dose of 10kGy). Then, the irradiated MCC was placed in 50g of glycidyl methacrylate GMA emulsion (30% GMA, 3% surfactant Tween 20) and reacted in a 50°C water bath for 2h. The product was washed with ethanol and vacuum dried at 60°C to obtain MCC-g-GMA. 1g of MCC-g-GMA was placed in a 20wt% N-methyl-glucamine aqueous solution and reacted at 80°C for 12h. The reaction product was washed, filtered and dried to obtain an alcoholamine adsorption resin.

[0047] In Examples 4 to 11, N-methyl-glucose was used as a functional monomer to synthesize an alcohol amine adsorption resin to explore the removal effect of this type of adsorption material on antimony.

[0048] Example 2: Synthesis of 2-aminoethanol resin

[0049] 2-Aminoethanol from the alcoholamine compounds was selected as the functional monomer to synthesize alcoholamine adsorption resin. 1g of microcrystalline cellulose microspheres (MCC), 0.0645g of ammonium ferric sulfate, 0.5mL of 30% hydrogen peroxide, 10mL of glycidyl methacrylate (GMA) and 60mL of acetone were placed in a 250mL three-necked flask. Nitrogen was continuously introduced during the reaction to remove oxygen. The reaction was carried out in a 50°C water bath under a nitrogen atmosphere for 2h, the product was washed with ethanol, and vacuum dried at 60°C to obtain MCC-g-GMA. The intermediate was then placed in a 20wt% 2-aminoethanol solution, and after reacting at 80°C for 12h, the reaction product was washed, filtered, and dried to obtain 2-aminoethanol resin.

[0050] Example 3: Synthesis of isobutanolamine resin

[0051] The MCC-g-GMA intermediate was prepared by the synthesis method in Example 1 or 2. The intermediate was then placed in a 20 wt% isobutanolamine solution, reacted at 80° C. for 12 h, and the reaction product was washed, filtered, and dried to obtain 2-aminoethanol resin.

[0052] Example 4: Adsorption of Sb(III) by amine adsorption resin at different pH values

[0053] Weigh 0.01g of adsorption resin and put it into 10mL of aqueous solution containing antimony at 30℃ for static batch adsorption experiment. Use 0.1mol / L HCl and NaOH to adjust the pH of the solution to 1-11 respectively, and conduct adsorption experiment. After adsorption for a period of time, filter out the supernatant with a filter head, detect the concentration of metal ions with ICP-OES, and calculate its adsorption efficiency.

[0054] The adsorption results of Sb(III) by alcohol amine adsorption resin at different pH are as follows: Figure 2 As shown in the figure, when pH>3, the adsorption of Sb(III) by the alcoholamine adsorption resin is not affected by pH, indicating that the material can be used in a wide pH range.

[0055] Example 5: Adsorption of Sb(V) by amine adsorption resin at different pH values

[0056] The alcohol amine adsorption resin was used for the adsorption of Sb(V) using similar adsorption steps as in Example 3. After a period of adsorption, the supernatant was filtered out with a filter head, and the residual antimony concentration was detected by ICP-OES, and its adsorption efficiency was calculated.

[0057] The adsorption results of Sb(V) by alcohol amine adsorption resin at different pH are shown in Figure 3As shown in the figure, it can be seen that the alcohol amine adsorption resin has the best adsorption effect on Sb(V) when pH=1-3, and its adsorption efficiency reaches more than 95%.

[0058] Example 6: Adsorption of different concentrations of Sb(III) by alcohol amine adsorption resin

[0059] Weigh 0.01 g of adsorption resin and put it into 10 mL of Sb(III) solution with different concentrations at 30°C to conduct a static batch adsorption experiment. After a period of adsorption, filter out the supernatant with a filter head, detect the ion concentration with ICP-OES, and calculate its adsorption efficiency.

[0060] The adsorption results of alcohol amine adsorption resin on different concentrations of Sb(III) are as follows: Figure 4 As shown in the figure, it can be seen that with the increase of Sb(III) concentration, the adsorption amount of Sb(III) by alcoholamine adsorption resin gradually increases. The isotherm adsorption data were fitted with Langmuir and Freundlich models, and it was found that the adsorption process of Sb(III) conformed to the Langmuir model, and the maximum adsorption amount was 217.61 mg / g.

[0061] Example 7: Adsorption of different concentrations of Sb(V) by alcohol amine adsorption resin

[0062] The alcohol amine adsorption resin was used for the adsorption of Sb(V) at different concentrations using similar adsorption steps as in Example 6. After a period of adsorption, the supernatant was filtered out with a filter head, and the residual antimony concentration was detected by ICP-OES, and the adsorption efficiency was calculated.

[0063] The adsorption results of alcohol amine adsorption resin on different concentrations of Sb(V) are as follows: Figure 5 As shown in the figure, it can be seen that with the increase of Sb(V) concentration, the adsorption amount of Sb(V) by alcoholamine adsorption resin gradually increases. The isotherm adsorption data was fitted with Langmuir and Freundlich models, and it was found that the adsorption process of Sb(V) conforms to the Langmuir model, and the maximum adsorption amount is 49.11 mg / g.

[0064] Example 8: Experiment on the repeated use of antimony by alcohol amine adsorption resin

[0065] Weigh 0.01g of adsorption resin and put it into 10mL of aqueous solution containing antimony at 30℃. After adsorption for a period of time at the optimal pH, filter out the supernatant with a filter head, detect the residual antimony concentration with ICP-OES and calculate its removal rate. Wash the antimony-loaded resin three times with deionized water, and add 1mol / L HCl eluent to elute it. For each adsorption experiment, the resin is washed three times with deionized water and then the next cycle is carried out. This cycle is repeated five times.

[0066] The experimental results of the repeated use of antimony by alcohol amine adsorption resin are as follows: Figure 6 As shown in the figure, it can be concluded that after five cycles, the adsorption efficiency of the alcohol amine adsorption resin on antimony remains basically unchanged, indicating that this adsorption material has good reusability in the process of removing antimony.

[0067] Example 9: Static adsorption experiment of antimony in mine water by alcohol amine adsorption resin

[0068] Weigh 0.01g of adsorption resin and put it into 10mL of antimony-containing mine water at 30℃ to conduct a static batch adsorption experiment. After a period of adsorption, filter out the supernatant with a filter head, detect the ion concentration with ICP-OES, and calculate its adsorption efficiency.

[0069] The adsorption results of alcohol amine adsorption resin on antimony in mine water are as follows: Figure 7 As shown in the figure, it can be concluded that the alcohol amine adsorption resin can not only efficiently adsorb antimony from groundwater (the adsorption efficiency is close to 99%), but also adsorb the toxic ion arsenic at the same time.

[0070] Example 10: Dynamic adsorption experiment of antimony in mine water by alcohol amine adsorption resin

[0071] The alcohol amine adsorption resin is filled into the adsorption column in a wet state, and the antimony-containing groundwater is pumped into the adsorption column. Dynamic adsorption evaluation conditions: The adsorption column volume is 1mL, and a certain amount of alcohol amine adsorption resin is filled. The antimony concentration of the mine water containing antimony is 10.16mg / L.

[0072] According to the above experimental conditions, a dynamic adsorption experiment was conducted and the results were obtained by sampling and analyzing at specific time intervals. Figure 8 The results show that the alcohol amine adsorption resin can effectively remove antimony from mine water, indicating that this functionalized resin has the potential to remove antimony on an industrial scale.

[0073] Example 11: Dynamic elution experiment of antimony in mine water by alcohol amine adsorption resin

[0074] Using 1 mol / L HCl as the eluent, the alcoholamine adsorption resin loaded with antimony in Example 10 was eluted. Fig. 9 It can be seen from the desorption experimental results that only 20BV of eluent is needed to achieve an elution rate of more than 99%.

[0075] In summary, the method for removing antimony ions from a solution adopted by the present invention is: adding an alcohol amine adsorption resin to an antimony-containing solution to adsorb antimony; or flowing the antimony-containing solution into an adsorption column loaded with an alcohol amine adsorption resin through a peristaltic pump; after the adsorption is completed, using an eluent to elute and separate the antimony adsorbed on the resin. The adsorption resin involved in the present invention has a polyhydroxy structure, can efficiently adsorb antimony from an antimony-containing solution, and has a high adsorption capacity, which can meet the requirements for filling and use of adsorption columns in industry. On the other hand, the adsorption resin with a polyhydroxy structure on the surface can efficiently remove antimony from mine water, and can also remove highly toxic arsenic at the same time.

[0076] The raw material source of the invention is wide and the cost is low; the material preparation is simple; the adsorption process can efficiently and selectively remove antimony; the adsorbent has strong regeneration ability and has wide application value.

[0077] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0078] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A method for removing antimony using an alcoholamine adsorption resin, characterized in that: The following steps are involved: Step 1): Adsorption: adjusting the solution containing antimony ions to pH=1-11, and then adding an alcoholamine adsorption resin to the solution to adsorb the antimony ions in the solution; Step 2): Elution: In the above step 1), after the alcoholamine adsorption resin is saturated with adsorption, an elution liquid is used to elute, concentrate, separate and regenerate the antimony loaded on the alcoholamine adsorption resin to achieve the removal of antimony.

2. The method for removing antimony by using an alcoholamine adsorption resin according to claim 1, characterized in that: In the above step 1), the alcoholamine adsorption resin is a resin material having a polyhydroxy structure on the surface obtained by modifying the surface of a substrate.

3. The method for removing antimony by using an alcoholamine adsorption resin according to claim 2, characterized in that: The preparation method of the alcoholamine adsorption resin comprises the following steps: Step (a): treating the surface of the substrate by ionizing radiation grafting or chemical grafting; Step (b): grafting an unsaturated monomer emulsion containing epoxy groups or halogens onto the surface of a substrate to modify the substrate and form a functional intermediate; wherein the mass ratio of the substrate to the unsaturated monomer emulsion containing epoxy groups or halogens is (1-2):(5-20); Step (c): Then, an alcoholamine compound having a polyhydroxy structure is further introduced onto the surface of the functional intermediate through epoxy ring opening or halogenation reaction to obtain an alcoholamine adsorption resin; wherein the mass ratio of the functional intermediate to the alcoholamine compound is (1-2):(10-20).

4. The method for removing antimony by using an alcoholamine adsorption resin according to claim 3, characterized in that: In the above step (a), the substrate is selected from a copolymer: one of polyethylene, polypropylene, polystyrene, polystyrene-divinylbenzene copolymer, ethylene-vinyl alcohol copolymer, polyvinylidene fluoride, polyvinyl butyral, polymethyl acrylate, polyethyl acrylate, polypropyl acrylate, polyacrylate, or a polymer substrate: one of cellulose, lignin, chitosan, and polyamide.

5. The method for removing antimony by using an alcoholamine adsorption resin according to claim 3, characterized in that: In the above step (b), the unsaturated monomer containing epoxy group or halogen is one of glycidyl methacrylate GMA, allyl alcohol glycidyl ether, glycidyl acrylate, chloroethyl methacrylate, chloroethyl acrylate, and chloromethylstyrene.

6. The method for removing antimony by using an alcoholamine adsorption resin according to claim 3, characterized in that: In the above step (c), the alcoholamine compound with a polyhydroxy structure is selected from one of N-methyl-glucoseamine, ethanolamine, diethanolamine, methyldiethanolamine, 2-aminoethanol, triethanolamine, diisopropanolamine, triisopropanolamine, 3-amino-1,2-propylene glycol, N,N-dimethylpropanolamine, and isobutanolamine.

7. The method for removing antimony by using an alcoholamine adsorption resin according to claim 3, characterized in that: In the above step (b), the mass ratio of the substrate to the unsaturated monomer emulsion containing epoxy groups or halogens is preferably 1:10; In the above step (c), the mass ratio of the functional intermediate to the alcoholamine compound is preferably 1:

20.

8. The method for removing antimony by using an alcoholamine adsorption resin according to claim 3, characterized in that: In the above step (c), the obtained alcoholamine adsorption resin having a polyhydroxy structure on the surface is in the form of spheres, fibers or films; The average particle size of the spherical alcoholamine adsorption resin is between 100 and 1500 microns.

9. The method for removing antimony by using an alcoholamine adsorption resin according to claim 1, characterized in that: In the above step 1), the solution containing antimony ions mainly includes the leaching solution of stibnite, stibnite, antimony ochre, or antimony-containing groundwater or mine water.

10. The method for removing antimony by using an alcoholamine adsorption resin according to claim 1, characterized in that: In the above step 2), the eluent is 0.05 mol / L to 5 mol / L hydrochloric acid.

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