Method for co-processing electrolytic manganese residues by using aluminum electrolysis waste refractory material

Abstract

The invention belongs to the technical field of solid waste treatment, and particularly relates to a method for co-processing electrolytic manganese residues by using an aluminum electrolysis waste refractory material, which fully utilizes the environmental resource interaction attribute of the aluminum electrolysis waste refractory material and the electrolytic manganese residues, realizes all-component echelon recycling by combining a green low-cost medicament with a simple process combination, and improves the comprehensive utilization rate of the aluminum electrolysis waste refractory material and the electrolytic manganese residues. Various high-value products are formed while efficient detoxification is achieved, the whole co-treatment process is simple, no secondary pollutants are generated, and the method is environmentally friendly, remarkable in economic benefit and wide in market popularization prospect.

Description

Technical Field

[0001] The invention relates to the technical field of solid waste treatment, and in particular to a method for co-disposing electrolytic manganese slag with aluminum electrolysis waste refractory materials. Background Art

[0002] At present, every ton of manganese metal produced will emit 8-12 tons of electrolytic manganese slag. Electrolytic manganese slag has significant heavy metals (Mn, Cu, Cd, Hg) and ammonia nitrogen (NH4 + -N) leaching toxicity, seriously polluting the surrounding soil, water and air. Electrolytic manganese slag is mainly composed of CaSO4, SiO2, Fe2O3, and MnO. Most of them can only be consumed by the building materials industry and lack high-value utilization potential. The disposal strategies for electrolytic manganese slag at home and abroad are divided into the following categories:

[0003] The first type of disposal strategy is slag storage, which mainly involves placing electrolytic manganese slag in a dedicated site with anti-seepage materials and equipped with leachate treatment facilities for storage and treatment, and treating soluble Mn by chemical precipitation, adsorption, electrochemical and other technologies. 2+ and NH4 + -N, thus avoiding environmental pollution. Its disadvantages are that it occupies a large area of ​​land, the anti-seepage materials are easily corroded and cause soil and water pollution, a large number of valuable groups are idle, and the resource utilization rate is low.

[0004] The second type of disposal strategy is stable solidification, which mainly uses alkaline agents such as CaO, MgO, Na3PO4, and Na2CO3 to convert soluble manganese into manganese hydroxide or low-solubility manganese salts, thereby achieving stable solidification of soluble manganese and efficient removal of ammonia nitrogen. Its disadvantage is that it fails to fully utilize the utilization potential of the high-value component Mn, and the electrolytic manganese slag still needs to be transported to the slag warehouse for storage after disposal, which fails to achieve large-scale consumption and occupies a large area of ​​land.

[0005] The third type of disposal strategy is the disposal of building materials, which mainly uses the rich calcium sulfate dihydrate content and silicon, aluminum and iron components in electrolytic manganese slag as cement admixtures and retarders, or is used to prepare unburned cementitious materials, thereby achieving the solidification of soluble heavy metals and the escape of ammonia nitrogen. The disadvantage is that a large amount of sulfate in electrolytic manganese slag will cause frosting in building materials, affecting the performance of the prepared building materials, and it cannot be used in high dosages.

[0006] The fourth type of disposal strategy is the recovery of valuable components, which mainly converts soluble manganese into manganese metal, manganese hydroxide, manganese sulfate and other manganese-containing compounds through microbial methods, acid leaching methods and water washing precipitation methods, so as to achieve effective recovery of manganese-containing components in electrolytic manganese slag. Its disadvantage is that only the recovery of manganese components is considered during the recovery process, and the synchronous utilization of other components in the electrolytic manganese slag is not involved. In addition, the waste gas, waste residue and waste liquid generated during the recovery process have serious secondary pollution risks. Summary of the invention

[0007] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide a method for the coordinated disposal of electrolytic manganese slag with waste refractory materials from aluminum electrolysis. Based on the environmental resource interaction properties of waste refractory materials from aluminum electrolysis and electrolytic manganese slag, the tiered resource utilization of soluble components (sodium fluoride, manganese, ammonia nitrogen) and aluminum silicon calcium components in the two solid wastes is realized, which has the characteristics of low disposal cost, high product value and simple process.

[0008] According to one aspect of the present invention, the present invention provides the following technical solution:

[0009] A method for co-disposing electrolytic manganese slag with aluminum electrolysis waste refractory materials comprises the following steps:

[0010] S1, respectively refine and sort the aluminum electrolysis waste refractory materials and electrolytic manganese slag to obtain standby raw material 1 and standby raw material 2;

[0011] S2, loading the standby raw material 1 and the standby raw material 2 into the wet leaching device 1 and the wet leaching device 2 respectively, adding the leaching solution for wet leaching, and after the wet leaching is completed, obtaining the leaching residue 1, the leaching solution 1, the leaching residue 2, and the leaching solution 2 by solid-liquid separation; the leaching solution 1 comprises a concentrated solution 1 and a dilute solution 1, and the leaching solution 2 comprises a concentrated solution 2 and a dilute solution 2;

[0012] S3, slowly adding concentrated solution 1 to concentrated solution 2, filtering and separating to obtain metal impurities and a primary filtrate, then adding an alkaline regulator to the primary filtrate, filtering and separating to obtain a manganese-containing product and a secondary filtrate;

[0013] S4, adding a component regulator to the secondary filtrate, filtering and separating to obtain a fluorine-containing product and a tertiary filtrate, then adding an acidic regulator to the tertiary filtrate, and obtaining an ammonia-containing product by low-temperature evaporation;

[0014] S5, mixing the leached residue 1 and the leached residue 2, then adding quicklime and aluminum powder, and sequentially performing curing, autoclaving, and shaping processes to prepare a firing-free cementitious material.

[0015] As a preferred embodiment of the method for co-disposing electrolytic manganese slag with waste refractory materials from aluminum electrolysis described in the present invention, in step S1, the particle size distribution of the raw material 1 and the raw material 2 is any one or more of 3 mm to 1 mm, 1 mm to 0.15 mm, 0.15 mm to 0.074 mm, and <0.074 mm.

[0016] As a preferred embodiment of the method for co-disposing electrolytic manganese slag with waste refractory materials from aluminum electrolysis according to the present invention, in step S2, the liquid-to-solid ratio of the leaching solution to the raw material 1 or the raw material 2 is (5-80) mL:1 g.

[0017] As a preferred embodiment of the method for co-disposing electrolytic manganese slag with waste refractory materials from aluminum electrolysis described in the present invention, in step S2, the wet leaching temperature is 20 to 80°C, and the wet leaching time is 10 to 240 minutes.

[0018] As a preferred embodiment of the method for co-disposing electrolytic manganese slag with waste refractory materials from aluminum electrolysis according to the present invention, in step S2, the leaching solution is one or more of water, hydrogen peroxide solution, and sodium hypochlorite solution.

[0019] As a preferred embodiment of the method for co-disposing electrolytic manganese slag with waste refractory materials from aluminum electrolysis described in the present invention, in step S2, the concentrated solution is used for extracting high-value products, and the dilute solution is circulated for wet leaching.

[0020] As a preferred embodiment of the method for co-disposing electrolytic manganese slag of aluminum electrolysis waste refractory materials described in the present invention, wherein: in the step S2, the leaching solution 1 is different fluorine-containing solutions produced after multiple leaching of aluminum electrolysis waste refractory materials, and the fluoride ion concentration in the solution is used as the evaluation index. The fluoride ion concentration after the first leaching is the highest, which is used as the concentrated solution 1, and the subsequent leaching is used as the dilute solution 1; the fluoride ion concentration of the concentrated solution 1 is ≥2000 mg / L; the rest is the dilute solution 1.

[0021] As a preferred embodiment of the method for co-disposing electrolytic manganese slag of aluminum electrolysis waste refractory materials described in the present invention, wherein: in the step S2, the leaching solution 2 is a solution containing different manganese and ammonia nitrogen produced after multiple water leaching of the electrolytic manganese slag, and the concentrations of manganese and ammonia nitrogen in the solution are used as evaluation indicators. The manganese and ammonia nitrogen concentrations are the highest after the first leaching, which is used as the concentrated solution 1, and the subsequent leaching is used as the dilute solution 2; the manganese concentration of the concentrated solution 1 is ≥600 mg / L, and the ammonia nitrogen concentration is ≥300 mg / L; the rest is the dilute solution 2.

[0022] As a preferred embodiment of the method for co-disposing electrolytic manganese slag with waste refractory materials from aluminum electrolysis according to the present invention, in step S3, the volume ratio of concentrated solution 1 to concentrated solution 2 is (0.1-1):1.

[0023] As a preferred embodiment of the method for co-disposing electrolytic manganese slag with waste refractory materials from aluminum electrolysis according to the present invention, in step S3, the alkaline regulator is one or more of ammonia water, sodium hydroxide, and sodium carbonate, and the alkaline regulator is added to adjust the pH value to 8-12.

[0024] As a preferred embodiment of the method for co-disposing electrolytic manganese slag with waste refractory materials from aluminum electrolysis described in the present invention, in step S4, the composition regulator is one or more of sodium aluminate, aluminum hydroxide, and aluminum fluoride, and the amount of the composition regulator added is 1 to 10 wt% of the secondary filtrate.

[0025] As a preferred embodiment of the method for co-disposing electrolytic manganese slag with waste refractory materials from aluminum electrolysis according to the present invention, in step S4, the acidic regulator is one or more of hydrofluoric acid, ammonium fluoride, and ammonium hydrogen fluoride, and the acidic regulator is added to adjust the pH value to 2 to 8.

[0026] As a preferred embodiment of the method for co-disposing electrolytic manganese slag with waste refractory materials from aluminum electrolysis described in the present invention, in step S4, the low-temperature evaporation temperature is 30-70°C, and the water vapor is reused in the wet leaching process after condensation.

[0027] As a preferred embodiment of the method for co-disposing electrolytic manganese slag with waste refractory materials from aluminum electrolysis according to the present invention, in step S5, the mass ratio of leached slag 1 to leached slag 2 is 20:80 to 80:20.

[0028] As a preferred embodiment of the method for co-disposing electrolytic manganese slag with waste refractory materials from aluminum electrolysis described in the present invention, wherein: in the step S5, the amount of quicklime added is 5 to 20 wt% of the total amount of leached slag 1 and leached slag 2; the amount of aluminum powder added is 0.1 to 1 wt% of the total amount of leached slag 1 and leached slag 2.

[0029] The beneficial effects of the present invention are as follows:

[0030] The present invention proposes a method for the coordinated disposal of electrolytic manganese slag by waste refractory materials from aluminum electrolysis, which fully utilizes the environmental resource interaction properties of waste refractory materials from aluminum electrolysis and electrolytic manganese slag, realizes the cascade recycling of all components through the combination of green and low-cost reagents and simple process combinations, forms a variety of high-value products while achieving efficient detoxification, and the entire coordinated disposal process is simple and no secondary pollutants are generated, with significant environmental and economic benefits, and has broad market promotion prospects. DETAILED DESCRIPTION

[0031] The following will be described clearly and completely in conjunction with the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention proposes a method for co-disposing electrolytic manganese slag with waste refractory materials from aluminum electrolysis. Based on the concept of "using waste to treat waste", the soluble components (Na, F, Mn, NH4 + -N)'s resource complementarity advantage, using aluminum electrolysis waste refractory materials to coordinate the treatment of electrolytic manganese slag, has the following advantages:

[0033] (1) Low-cost leaching solutions are used to wet-leach aluminum electrolysis waste refractory materials and electrolytic manganese slag, respectively, to achieve green and efficient extraction of soluble components. The dilute solution can be recycled in the wet leaching process, showing significant sustainable advantages. The toxic soluble components F, Mn, NH4 + The leaching rate of -N was ≥99.0%.

[0034] (2) The huge amount of soluble fluorine in the leachate of aluminum electrolytic waste refractory materials is used to remove Ca and Mg in the leachate of electrolytic manganese slag, and form CaF2 and MgF2 products, which can be used as additives in electrolytic aluminum production for resource utilization. While the metal impurities are targeted for productization, the safe solidification of some soluble fluorides is achieved, and the removal rates of Ca and Mg are both ≥99.5%.

[0035] (3) pH regulation and component supplementation can be achieved by adding alkaline regulators (NH4 + -N, Na), thereby converting soluble manganese into high-value product -1 (manganese tetraoxide or manganese hydroxide), which has significant economic value and can provide a basis for the subsequent extraction of high-value products -2 and -3, among which the extraction rate of Mn is ≥99.0%.

[0036] (4) By further adjusting the solution ion composition by preferably using an aluminum-containing component regulator, Na, Al and environmentally unfriendly fluorides were successfully converted into high-value product-2 (cryolith), avoiding the risk of environmental pollution, wherein the extraction rates of Na and Al were both ≥98.0%.

[0037] (5) Based on the ionic composition of the remaining solution (NH4 + -N, F), through the process combination of pH control and low-temperature evaporation, the high-value product -3 (ammonia hydrogen fluoride) was successfully prepared, thereby realizing the high-value utilization of the toxic components ammonia nitrogen and fluorine, and the water vapor can be recycled for the wet leaching link after condensation, thereby saving the disposal cost of the wet leaching link, and the purity of the ammonium hydrogen fluoride product is ≥98.0%.

[0038] (6) Based on the rich cementitious components (alumina and silica) in the leaching slag of waste refractory materials from aluminum electrolysis and the rich retarding components (CaSO4) and cementitious components (SiO2) in the leaching slag of electrolytic manganese slag, the two leaching slags are innovatively used to jointly prepare unburned cementitious materials, thereby realizing the synergistic resource utilization of all components of waste refractory materials from aluminum electrolysis and electrolytic manganese slag. The compressive strength of the prepared unburned cementitious materials is ≥3.5MPa.

[0039] The technical solution of the present invention is further described below in conjunction with specific embodiments.

[0040] Embodiment 1

[0041] A method for co-disposing electrolytic manganese slag with aluminum electrolysis waste refractory materials comprises the following steps:

[0042] S1. Respectively refine and sort the waste refractory materials from aluminum electrolysis and electrolytic manganese slag to obtain the standby raw materials 1 and 2 with a particle size distribution of <0.074 mm.

[0043] S2. Load the unused raw materials 1 and 2 into wet leaching device 1 and wet leaching device 2 respectively, add water according to the liquid-solid ratio of 40:1 and 20:1 respectively, the reaction temperature is 80℃ and 60℃ respectively, and the reaction time is 60min and 30min respectively. After the wet leaching is completed, the leaching residue 1, leaching liquid 1, leaching residue 2 and leaching liquid 2 are obtained by solid-liquid separation. Among them, the concentrated solution is used for high-value product extraction, and the dilute solution is circulated for the wet leaching process. F, Mn, NH4 + The leaching rates of -N were 99.85%, 99.78% and 99.82% respectively.

[0044] S3, the concentrated solution 1 is slowly added to the concentrated solution 2 at a volume ratio of 0.5:1, and the metal impurities and the primary filtrate are separated by filtration, and then ammonia water is added to the primary filtrate, and the pH value is 11, and the manganese-containing product and the secondary filtrate are separated by filtration. The removal rates of Ca and Mg are 99.86% and 99.91% respectively, and the extraction rate of Mn is 99.90%.

[0045] S4. Sodium aluminate is added to the secondary filtrate at a mass ratio of 5wt%, and the fluorine-containing product and the tertiary filtrate are separated by filtration. Hydrofluoric acid is then added to the tertiary filtrate at a pH value of 3, and an ammonia-containing product is obtained by low-temperature evaporation at a temperature of 60°C. The water vapor is condensed and reused in the wet leaching process. The extraction rates of Na and Al are 99.20% and 99.15% respectively, and the purity of the hydrogen fluoride ammonia product is 98.91%.

[0046] S5, the leached residue 1 and the leached residue 2 are uniformly mixed in a mass ratio of 80:20, and then 15wt% of quicklime and 0.1wt% of aluminum powder are added, and the unburned cementitious material is prepared through curing, autoclaving and shaping processes in sequence. The compressive strength of the prepared unburned cementitious material is 4.5MPa.

[0047] Embodiment 2

[0048] A method for co-disposing electrolytic manganese slag with aluminum electrolysis waste refractory materials comprises the following steps:

[0049] S1. Refining and sorting the waste refractory materials from aluminum electrolysis and electrolytic manganese slag respectively to obtain the standby raw materials 1 and standby raw materials 2 with a particle size distribution of 0.15 mm to 0.074 mm.

[0050] S2. Load the unused raw materials 1 and 2 into wet leaching device 1 and wet leaching device 2 respectively, add aqueous solution at a liquid-solid ratio of 50:1 and 25:1 respectively, the reaction temperature is 70°C and 60°C respectively, and the reaction time is 60min and 60min respectively. After the wet leaching is completed, the leaching residue 1, leaching liquid 1, leaching residue 2 and leaching liquid 2 are obtained by solid-liquid separation. Among them, the concentrated solution is used for high-value product extraction, and the dilute solution is circulated for the wet leaching process. F, Mn, NH4 + The leaching rates of -N were 99.80%, 99.72% and 99.79% respectively.

[0051] S3, the concentrated solution 1 is slowly added to the concentrated solution 2 at a volume ratio of 0.4:1, and the metal impurities and the primary filtrate are separated by filtration, and then ammonia water is added to the primary filtrate, and the pH value is 12, and the manganese-containing product and the secondary filtrate are separated by filtration. The removal rates of Ca and Mg are 99.74% and 99.84% respectively, and the extraction rate of Mn is 99.81%.

[0052] S4. Sodium aluminate is added to the secondary filtrate at a mass ratio of 4.5wt%, and the fluorine-containing product and the tertiary filtrate are separated by filtration. Hydrofluoric acid is then added to the tertiary filtrate at a pH of 3.5, and an ammonia-containing product is obtained by low-temperature evaporation at a temperature of 50°C. The water vapor is condensed and reused in the wet leaching process. The extraction rates of Na and Al are 99.12% and 99.04% respectively, and the purity of the hydrogen fluoride ammonia product is 98.85%.

[0053] S5, the leached residue 1 and the leached residue 2 are uniformly mixed in a mass ratio of 70:30, and then 15wt% of quicklime and 0.1wt% of aluminum powder are added, and the unburned cementitious material is prepared through curing, autoclaving and shaping processes in sequence. The compressive strength of the prepared unburned cementitious material is 4.1MPa.

[0054] Embodiment 3

[0055] A method for co-disposing electrolytic manganese slag with aluminum electrolysis waste refractory materials comprises the following steps:

[0056] S1. Respectively refine and sort the waste refractory materials from aluminum electrolysis and electrolytic manganese slag to obtain the standby raw materials 1 and 2 with a particle size distribution of 1 mm to 0.15 mm.

[0057] S2. Load the unused raw materials 1 and 2 into wet leaching device 1 and wet leaching device 2 respectively, add aqueous solution at a liquid-solid ratio of 30:1 and 15:1 respectively, the reaction temperature is 60°C and 60°C respectively, and the reaction time is 30min and 30min respectively. After the wet leaching is completed, the leaching residue 1, leaching liquid 1, leaching residue 2, and leaching liquid 2 are obtained by solid-liquid separation. Among them, the concentrated solution is used for high-value product extraction, and the dilute solution is circulated for the wet leaching process. F, Mn, NH4 + The leaching rates of -N were 99.08%, 99.12% and 99.09% respectively.

[0058] S3, concentrated solution 1 is slowly added to concentrated solution 2 at a volume ratio of 0.6:1, and the metal impurities and the primary filtrate are separated by filtration, and then ammonia water is added to the primary filtrate, and the pH value is 11.5, and the manganese-containing product and the secondary filtrate are separated by filtration. The removal rates of Ca and Mg are 99.51% and 99.57% respectively, and the extraction rate of Mn is 99.12%.

[0059] S4. Sodium aluminate is added to the secondary filtrate at a mass ratio of 5wt%, and the fluorine-containing product and the tertiary filtrate are separated by filtration. Hydrofluoric acid is then added to the tertiary filtrate at a pH of 5.5, and an ammonia-containing product is obtained by low-temperature evaporation at a temperature of 60°C. The water vapor is condensed and reused in the wet leaching process. The extraction rates of Na and Al are 98.23% and 98.12% respectively, and the purity of the hydrogen fluoride ammonia product is 98.08%.

[0060] S5, the leached residue 1 and the leached residue 2 are uniformly mixed in a mass ratio of 60:40, and then 15wt% of quicklime and 0.1wt% of aluminum powder are added, and the unburned cementitious material is prepared through curing, autoclaving and shaping processes in sequence. The compressive strength of the prepared unburned cementitious material is 3.55MPa.

[0061] Embodiment 4

[0062] A method for co-disposing electrolytic manganese slag with aluminum electrolysis waste refractory materials comprises the following steps:

[0063] S1. Refining and sorting the waste refractory materials from aluminum electrolysis and electrolytic manganese slag respectively to obtain the standby raw materials 1 and standby raw materials 2 with a particle size distribution of 0.15 mm to 0.074 mm.

[0064] S2. Load the unused raw materials 1 and 2 into wet leaching device 1 and wet leaching device 2 respectively, add aqueous solution at a liquid-solid ratio of 80:1 and 25:1 respectively, the reaction temperature is 70°C and 70°C respectively, and the reaction time is 90min and 60min respectively. After the wet leaching is completed, the leaching residue 1, leaching liquid 1, leaching residue 2 and leaching liquid 2 are obtained by solid-liquid separation. Among them, the concentrated solution is used for high-value product extraction, and the dilute solution is circulated for the wet leaching process. F, Mn, NH4 + The leaching rates of -N were 99.81%, 99.70% and 99.69% respectively.

[0065] S3, the concentrated solution 1 is slowly added to the concentrated solution 2 at a volume ratio of 0.5:1, and the metal impurities and the primary filtrate are separated by filtration, and then ammonia water is added to the primary filtrate, and the pH value is 11, and the manganese-containing product and the secondary filtrate are separated by filtration. The removal rates of Ca and Mg are 99.77% and 99.82% respectively, and the extraction rate of Mn is 99.79%.

[0066] S4. Sodium aluminate is added to the secondary filtrate at a mass ratio of 4wt%, and the fluorine-containing product and the tertiary filtrate are separated by filtration. Hydrofluoric acid is then added to the tertiary filtrate at a pH value of 3.5, and an ammonia-containing product is obtained by low-temperature evaporation at a low-temperature evaporation temperature of 50°C. The water vapor is condensed and reused in the wet leaching process. The extraction rates of Na and Al are 99.03% and 98.88% respectively, and the purity of the hydrogen fluoride ammonia product is 98.76%.

[0067] S5, the leached residue 1 and the leached residue 2 are uniformly mixed in a mass ratio of 75:25, and then 15wt% of quicklime and 0.1wt% of aluminum powder are added, and the unburned cementitious material is prepared through curing, autoclaving and shaping processes in sequence. The compressive strength of the prepared unburned cementitious material is 4.30MPa.

[0068] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A method for co-disposing electrolytic manganese slag with waste refractory materials from aluminum electrolysis, characterized in that: The steps include: S1, respectively refine and sort the aluminum electrolysis waste refractory materials and electrolytic manganese slag to obtain standby raw material 1 and standby raw material 2; S2, loading the standby raw material 1 and the standby raw material 2 into the wet leaching device 1 and the wet leaching device 2 respectively, adding the leaching solution for wet leaching, and after the wet leaching is completed, obtaining the leaching residue 1, the leaching solution 1, the leaching residue 2, and the leaching solution 2 by solid-liquid separation; the leaching solution 1 comprises a concentrated solution 1 and a dilute solution 1, and the leaching solution 2 comprises a concentrated solution 2 and a dilute solution 2; S3, slowly adding concentrated solution 1 to concentrated solution 2, filtering and separating to obtain metal impurities and a primary filtrate, then adding an alkaline regulator to the primary filtrate, filtering and separating to obtain a manganese-containing product and a secondary filtrate; S4, adding a component regulator to the secondary filtrate, filtering and separating to obtain a fluorine-containing product and a tertiary filtrate, then adding an acidic regulator to the tertiary filtrate, and obtaining an ammonia-containing product by low-temperature evaporation; S5, mixing the leached residue 1 and the leached residue 2, then adding quicklime and aluminum powder, and sequentially performing curing, autoclaving, and shaping processes to prepare a firing-free cementitious material.

2. The method for co-disposing electrolytic manganese slag with aluminum electrolysis waste refractory materials according to claim 1, characterized in that: In the step S2, the liquid-to-solid ratio of the leaching solution to the raw material 1 or the raw material 2 is (5-80) mL:1 g.

3. The method for co-disposing electrolytic manganese slag with aluminum electrolysis waste refractory materials according to claim 1, characterized in that: In step S2, the wet leaching temperature is 20-80° C., the wet leaching time is 10-240 min; and the leaching solution is one or more of water, hydrogen peroxide solution, and sodium hypochlorite solution.

4. The method for co-disposing electrolytic manganese slag with aluminum electrolysis waste refractory materials according to claim 1, characterized in that: In step S3, the volume ratio of concentrated solution 1 to concentrated solution 2 is (0.1-1):

1.

5. The method for co-disposing electrolytic manganese slag with aluminum electrolysis waste refractory materials according to claim 1, characterized in that: In step S3, the alkaline regulator is one or more of ammonia water, sodium hydroxide, and sodium carbonate, and the alkaline regulator is added to adjust the pH value to 8-12.

6. The method for co-disposing electrolytic manganese slag with aluminum electrolysis waste refractory materials according to claim 1, characterized in that: In step S4, the composition regulator is one or more of sodium aluminate, aluminum hydroxide, and aluminum fluoride, and the amount of the composition regulator added is 1 to 10 wt % of the secondary filtrate.

7. The method for co-disposing electrolytic manganese slag with aluminum electrolysis waste refractory materials according to claim 1, characterized in that: In step S4, the acidic control agent is one or more of hydrofluoric acid, ammonium fluoride, and ammonium hydrogen fluoride, and the acidic control agent is added to adjust the pH value to 2-8.

8. The method for co-disposing electrolytic manganese slag with aluminum electrolysis waste refractory materials according to claim 1, characterized in that: In step S4, the low-temperature evaporation temperature is 30-70° C., and the water vapor is reused in the wet leaching process after being condensed.

9. The method for co-disposing electrolytic manganese slag with aluminum electrolysis waste refractory materials according to claim 1, characterized in that: In the step S5, the mass ratio of the leached residue 1 to the leached residue 2 is 20:80 to 80:

20.

10. The method for co-disposing electrolytic manganese slag with aluminum electrolysis waste refractory materials according to claim 1, characterized in that: In the step S5, the amount of quicklime added is 5-20wt% of the total amount of the leached slag 1 and the leached slag 2; the amount of aluminum powder added is 0.1-1wt% of the total amount of the leached slag 1 and the leached slag 2.