A method for resource utilization of lithium-containing glass waste

Abstract

The present application relates to a kind of resource utilization methods of lithium-containing glass waste, comprising the following steps: the lithium-containing glass waste to be treated is broken, and glass powder is obtained;The glass powder and leaching solution are mixed, after stirring and leaching, solid-liquid separation is carried out, and filter residue A and filtrate B are obtained;Wherein, the leaching solution is an aqueous solution containing OH ‑ , Al (OH) 4 ‑ , alkali metal ions, acid radical ions;Alkali metal ions are Na + And / or K + , the acid radical ion includes one or several of Cl ‑ , SO42 ‑ , NO3 ‑ ;Filter B is treated by lithium precipitation, and lithium-containing compound product is obtained.The whole process of the present application realizes the comprehensive recycling of lithium-containing waste glass, not only extracts high-value lithium, but also recycles valuable components Al and Si in glass with high added value, effectively improving the comprehensive treatment benefit.

Description

TECHNICAL FIELD

[0001] The application relates to a resource utilization method of lithium-containing glass waste, and belongs to the field of solid waste resource treatment. BACKGROUND

[0002] Li2O-Al2O3-SiO2(LAS) system glass-ceramics, also known as glass ceramics, have a series of excellent properties such as thermal shock resistance, high temperature resistance, corrosion resistance and high strength, and in particular, the LAS system glass can be crystallized, which makes the linear expansion coefficient of the LAS glass-ceramics adjustable in a wide range, and can realize zero expansion or even negative expansion. These special properties make the LAS glass-ceramics widely used, such as kitchen utensils, glass cooking surfaces, automobile windshields, and fireplace panels, and in particular, they are indispensable in the high-tech field, such as high-performance radar antenna protective cover materials for aerospace. Lithium aluminum silicate (LAS) glass-ceramics are manufactured by controlling the crystallization process, and in the manufacturing process, in order to reduce the melting temperature and increase the melt viscosity, lithium spodumene concentrate with low iron content (less than 0.1%) or Li2CO3 is added to the glass solution. In addition, lithium can also be used as an additive to add color or improve the glaze of glass ceramics. According to statistics, in 2022, the demand for lithium in the glass ceramic industry was 82,500 tons of LCE (lithium carbonate equivalent), and the average demand in the past five years was 81,500 tons, which is the second largest application field (13%) after lithium-ion secondary batteries.

[0003] LAS glass ceramics produce unqualified products and the remaining "edge material" in the process of cutting, forming, polishing and other deep processing. At the same time, a large amount of glass waste will be produced after sorting and disassembling glass ceramic panels from waste 3C electronic products, waste photovoltaic panels, and scrapped cars. The Li2O content in this kind of glass waste is 0.1-5.5wt.%, and the main components are mainly Al2O3, Na2O, MgO, K2O, SiO2 and other oxides. Compared with traditional lithium-containing mineral resources such as spodumene, lepidolite, petalite and lithium alumino-phosphate, the composition is simple and does not contain harmful and difficult-to-separate elements such as F and Fe. If lithium can be efficiently recovered from this kind of lithium-containing glass waste and its resource utilization is realized, the source of lithium resources in China can be further expanded, which helps to alleviate the current problem of tight lithium resources.

[0004] Phase analysis shows that the main component of lithium-containing glass waste is amorphous glass material, and no obvious lithium-containing phase is found. It is speculated that the lithium-containing crystalline phase is mixed in the glass phase, and only a small amount of "exposure" is on the surface, which undoubtedly increases the difficulty of lithium extraction from lithium-containing glass waste.

[0005] Chinese invention patent CN 115595445 A discloses a method for recovering lithium from lithium-containing glass powder. The method involves crushing lithium-containing glass powder waste to below 200 mesh; adding the powder to an acid washing tank with 30 wt.% hydrochloric acid solution at a solid-liquid volume ratio of 3:1, mixing and stirring, allowing it to stand, and then filtering to obtain a leachate; adjusting the pH of the leachate to purify and remove aluminum; and heating the purified solution to precipitate lithium, yielding lithium carbonate. This invention patent uses acid leaching to achieve the leaching of valuable lithium from glass powder. However, silicate-based glassy substances are difficult to react with acid, and a large amount of lithium-containing microcrystalline phase remains interspersed within the glass phase, potentially leading to low leaching efficiency and a low leaching rate. Furthermore, hydrochloric acid is volatile, which may not only increase acid consumption but also cause environmental pollution.

[0006] Therefore, it is particularly important to develop a green and efficient disposal process for the resource utilization of lithium-containing glass waste to achieve the secondary utilization of lithium. Summary of the Invention

[0007] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a novel method for the resource utilization of lithium-containing glass waste.

[0008] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0009] A method for the resource utilization of lithium-containing glass waste includes the following steps:

[0010] S1. Crush the lithium-containing glass waste to be processed to obtain glass powder;

[0011] S2. Mix the glass powder and the leaching solution, stir to dissolve, and then separate the solid and liquid to obtain filter residue A and filtrate B.

[0012] The dissolution solution contains OH - Al(OH)4 - Aqueous solutions of alkali metal ions and acid radicals; the alkali metal ion is Na+. + and / or K + The anions include Cl- - SO4 2- NO3 - One or more of them;

[0013] S3. The filtrate B is subjected to lithium precipitation treatment to obtain a lithium-containing compound product.

[0014] Further, in S2, the liquid-to-solid ratio of the leachate to the glass powder is 5-20 ml:1 g, preferably 7-15 ml:1 g, more preferably 8-13 ml:1 g, and even further preferably 8-11 mL:1 g, more preferably 9-10 mL:1 g; preferably, in the leachate, OH... -The molar concentration is 1.0-6.0 mol / L (preferably 2-6 mol / L, more preferably 3-4 mol / L); preferably, the Al(OH)4 in the leaching solution is calculated as aluminum ions. - The molar ratio of silicon in the glass powder to silicon is 0.1-2.0:1, more preferably 0.2-1.5:1. Preferably, the content of anions is 20-90 g / L, more preferably 40-70 g / L.

[0015] Further, in S2, the glass powder and the dissolving liquid are mixed and stirred at 60-98°C for 1-4 hours, preferably at 65-95°C for 1.5-3.5 hours, and more preferably at 85-90°C for 2-3 hours.

[0016] Furthermore, in S2, the stirring rate is 300-500 r / min, even further to 350-450 r / min, and still further to 375-425 r / min.

[0017] Furthermore, in step S2, an ultrasonic field is applied simultaneously with stirring and dissolving; wherein the ultrasonic frequency is 17.0-18.5 kHz, preferably 17.5-18.4 kHz, more preferably 18.0-18.3 kHz, and the ultrasonic radiation power is 30-120 W, preferably 40-110 W, more preferably 50-80 W. This helps to improve the lithium recovery rate. The possible reason is that sodium silicate has a certain viscosity in water and may adhere to the surface of unreacted glass powder. Additionally, newly formed insoluble sodalite may also adhere to the glass powder surface, preventing further dissolution. By using an external ultrasonic field to assist stirring and dissolving, the local high pressure generated by the ultrasound accelerates the turbulent flow of the alkaline solution, causing the alkaline solution to continuously wash over the glass phase surface. This accelerates the peeling off of the reactant layer on the surface, allowing the waste glass powder to continuously expose fresh surfaces, increasing the contact area for mass transfer, and promoting the dissolution reaction.

[0018] Further, in step S3, the filtrate B is concentrated and crystallized to obtain lithium hydroxide product; preferably, the filtrate B is evaporated and concentrated to obtain concentrated solution C with a Li2O content of 15-40 g / L; then the concentrated solution C is mixed with seed crystals and stirred at 20-55°C. When the Li2O content in the solution decreases to 2-5 g / L, solid-liquid separation is performed to obtain lithium hydroxide monohydrate product and filtrate D.

[0019] The amount of seed crystals added is 1.0-3.0 wt.% of the concentrated liquid C; preferably, the seed crystals include one or more of Li2CO3, LiOH, and LiOH·H2O.

[0020] Further, filtrate D is returned to S2 for use in constructing the dissolution solution.

[0021] Furthermore, it also includes a step of processing the filter residue A, that is, after washing the filter residue A with water, solid-liquid separation is performed to obtain washed residue E and washing liquid F. The washing liquid F is returned to step S2 to be used to construct the leaching solution.

[0022] Optionally, one or more of KOH and NaOH can be used to adjust the OH content in the dissolution solution. - The concentration was adjusted to the target concentration.

[0023] Optionally, Al(OH)4 in the leachate - The Al in it comes from one or more of AlCl3, Al2(SO4)3, Al2O3 and Al(OH)3.

[0024] Furthermore, in S1, the particle size of the glass powder is ≤0.3mm, preferably ≤0.1mm.

[0025] Furthermore, in S1, the lithium-containing glass waste originates from one or more of the following: glass covers of various waste 3C electronic products, photovoltaic glass panels, displays, and defective products and tailings from the deep processing of lithium-containing glass.

[0026] Optionally, in S1, the lithium-containing glass waste comes from Li2O-Al2O3-SiO2 (LAS) glass, and further, the lithium-containing glass waste comes from Li2O-Al2O3-SiO2 microcrystalline glass.

[0027] Further, in S1, the lithium-containing glass powder comprises 0.1-6 wt.% Li2O, 35-65 wt.% SiO2, and 35-65 wt.% Al2O3.

[0028] Furthermore, in S1, the lithium-containing glass powder comprises 0.1-5.5 wt.% Li2O, 39.5-62.1 wt.% SiO2, 37.8-64.0 wt.% Al2O3, 0-3.0 wt.% MgO, 0-2.0 wt.% N2O, 0.1-0.50 wt.% CaO, 0-0.5 wt.% K2O, and 2.5-4.0 wt.% B2O.

[0029] In this invention, lithium-containing waste glass powder is reacted with OH... - Al(OH)4 -The leaching solution of alkali metal ions, acid radical ions, etc. is mixed, which dissolves glass phase substances such as SiO2 and Al2O3, and further transforms the lithium-containing microcrystalline phase encapsulated in the glass phase into the product. The filter residue A can be used as an adsorbent, water purifier, filter material, coating, etc. after pulping, washing, drying and grinding, so as to realize resource utilization and realize the full utilization of lithium-containing glass waste.

[0030] The present invention has a short process flow, requires little auxiliary material, and can realize the full utilization of lithium-containing waste glass. It is green, efficient, and closed-loop, does not generate secondary pollution, has low processing cost, and has extremely high economic value.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0032] (1) The resource recovery method of the present invention carries out the leaching reaction in an alkaline system. The alkaline reacts preferentially with SiO2 coated on the surface of the lithium-rich phase, thereby exposing the lithium-rich phase, increasing the reaction area, and effectively improving the lithium leaching rate.

[0033] (2) In the resource recovery process of the present invention, ultrasonic assistance is added during the dissolution reaction. The local high pressure generated by the ultrasonic wave accelerates the turbulent flow of the alkaline solution, so that the alkaline solution continuously washes the surface of the glass phase, and the reactant layer on the surface is peeled off at an accelerated rate, increasing the contact area for mass transfer and effectively improving the dissolution efficiency.

[0034] (3) The resource recovery method of the present invention utilizes alkali metal ions and Al(OH)4 during the leaching process. - The synergistic effect of these components simultaneously achieves the "dissolution" of lithium and the "removal" of silicon and aluminum. The resulting lithium-containing leachate does not require further purification and can be concentrated to precipitate lithium, thus obtaining lithium-containing compound products. The industrial process is short, the equipment is simple, and the industrialization feasibility is high.

[0035] (4) Compared with the acid treatment technology of CN 115595445 A, this invention can avoid the use of volatile acids, which is environmentally friendly. At the same time, some base and acid radical ions can be recycled in the process, which helps to reduce the amount of related raw materials and reduce the treatment cost.

[0036] (5) The entire process of the present invention realizes the comprehensive recycling of lithium-containing waste glass. It not only extracts high-value lithium, but also recovers valuable components Al and Si in the glass with high added value, effectively improving the comprehensive treatment efficiency of waste glass. The purity of lithium hydroxide products meets national standards, and the by-product sodalite has uniform composition, a porous structure, wide application range, and good economic value. Attached Figure Description

[0037] Figure 1 This is a flowchart of a method for the resource utilization of lithium-containing waste glass according to the present invention.

[0038] Figure 2 This is the XRD pattern of the lithium-containing waste glass used in Example 1.

[0039] Figure 3 This is the XRD pattern of filter residue A obtained in Example 1.

[0040] Figure 4 This is the XRD pattern of filter residue A obtained in Example 5. Detailed Implementation

[0041] The present invention will be described in detail below with reference to embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. Unless otherwise specified, the relevant percentages refer to mass percentages.

[0042] Example 1

[0043] In this embodiment, the method for resource utilization of lithium-containing waste glass includes the following steps:

[0044] S1. Take 100g of lithium-containing waste glass from a panel factory (Li₂O 4.93%, SiO₂ 57.56%, Al₂O₃ 31.47%, CaO 0.49%, MgO 2.65%, K₂O 0.36%, Na₂O 1.78%). See the phase analysis spectrum for details. Figure 2 ), crush, and obtain 100g of glass powder with a particle size ≤0.1mm;

[0045] S2. Mix 100g of glass powder with 1200mL of dissolution solution (liquid-solid ratio of 12ml:1g), place the mixture in a reaction vessel, and incubate at 80℃.

[0046] The mixture was stirred at 400 rpm for 3.0 h under the specified conditions. Solid-liquid separation was then performed to obtain filter residue A and filtrate B (Li₂O 2.71 g / L).

[0047] 1063g;

[0048] The dissolution solution contains Na + Al(OH)4 - OH - SO4 2- Aqueous solution; OH in the dissolution solution - The content of Na is 3 mol / L, and the content of sulfate is 56.89 g / L, that is, Na + The molar ratio of lithium in the powder is 0.5:1, and the aluminate content, calculated as aluminum ions, has a molar ratio of silicon in the glass powder to aluminum ions of 0.2:1.

[0049] S3. Place the filtrate B in an evaporator and evaporate and concentrate it to obtain 198g of concentrated liquid C (Li2O 18.10g / L) and 865g of condensate.

[0050] 198g of the concentrated solution C was placed in a crystallization vessel and cooled to 25°C. 5.0g of lithium hydroxide seed crystals were added, and the reaction was maintained at 150rpm for 2.0h. The mixture was allowed to stand until the Li2O content in the supernatant was 2.40g / L. Solid-liquid separation was then performed to obtain 5.32g of lithium hydroxide monohydrate and 185.68g of filtrate D. Filtrate D was returned to step S2 to be used to construct the leaching solution for processing the next batch of glass powder.

[0051] After washing the filter residue A with water, solid-liquid separation is performed to obtain washed residue E and washing liquid F. The washing liquid F is returned to step S2 to be used to construct the leaching solution to process the next batch of glass powder.

[0052] Specifically, when constructing the dissolution solution, filtrate D and washing solution F are mixed, and water, NaOH, Al2(SO4)3, Al2O3, and Al(OH)3 are selectively added as needed to ensure that the Na content in the dissolution solution is... + Al(OH)4 - OH - SO4 2- The target concentration has been achieved.

[0053] Figure 2 The XRD pattern of lithium-containing waste glass in S1 shows that, apart from the "amorphous bulge" unique to SiO2 in the 15-30° range, there are no diffraction peaks of other phases, indicating that the small amount of lithium-rich phase in the waste glass is almost completely covered by the glass phase. Figure 3 The XRD pattern of filter residue A after the waste glass powder in S2 has been dissolved shows that the diffraction peaks corresponding to SiO2 in the original powder have completely disappeared; the product generated by the dissolution reaction is a sodalite phase with Na, Si and Al as the main components; the "exposed" lithium-rich phase is further dissolved in the alkaline solution to generate soluble lithium salts, which exist in the form of Li2SO4 and LiOH in the filtrate B.

[0054] Inductively coupled plasma atomic emission spectrometry (ICP-AES) was used to perform full elemental analysis on the washed lithium hydroxide monohydrate product. Three parallel sets of samples were weighed, with 1.0 g of each sample. The samples were digested and diluted to volume with 1.40 mol / L hydrochloric acid before analysis, and the average value was taken. The purity of lithium hydroxide monohydrate in the product reached 83.73%. The calculated total recovery rate of lithium was 54.7%.

[0055] Example 2

[0056] Repeat Example 1, except that in S2, the ratio of the aluminate ions in the leaching solution to the molar number of silicon ions in the glass powder is 0.5:1.

[0057] The purity of the obtained lithium hydroxide monohydrate product was 89.20%. The overall lithium recovery rate was 53.1%.

[0058] Example 3

[0059] Repeat Example 1, except that in S2, the ratio of the aluminate ions in the leaching solution to the molar number of silicon ions in the glass powder is 1.0:1.

[0060] The purity of the obtained lithium hydroxide monohydrate product was 99.81%. The overall lithium recovery rate was 55.9%.

[0061] Example 4

[0062] Repeat Example 1, except that in S2, the ratio of the aluminate ions in the leaching solution to the molar number of silicon ions in the glass powder is 1.5:1.

[0063] The purity of the obtained lithium hydroxide monohydrate product was 99.03%. The overall lithium recovery rate was 34.1%.

[0064] Example 5

[0065] Repeat Example 1, except that in S2, the ratio of the aluminate ions in the leaching solution to the molar number of silicon ions in the glass powder is 1.8:1.

[0066] The purity of the obtained lithium hydroxide monohydrate product was 99.11%. The overall lithium recovery rate was 20.3%.

[0067] The comparison shows that the aluminate content in the leaching solution needs to be controlled within a certain range. When the molar ratio of aluminate to silicon in the glass powder is too low, the SiO2 dissolved by alkali will remain in the filtrate C as silicate and cannot be removed, resulting in low purity of the lithium hydroxide monohydrate product. When the ratio is too high, it will cause aluminate saturation in the reaction system, and the aluminate will combine with the dissolved lithium to form lithium aluminum hydroxide precipitate, see... Figure 4 This causes lithium to re-enter the slag phase, leading to a significant decrease in the lithium leaching rate and a reduction in the overall lithium recovery rate.

[0068] Example 6

[0069] Repeat Example 3, except that in S2, the molar concentration of hydroxide ions in the dissolution solution is 1 mol / L;

[0070] The purity of the obtained lithium hydroxide monohydrate product was 99.04%. The overall lithium recovery rate was 30.6%.

[0071] Example 7

[0072] Example 3 was repeated, except that in S2, the molar concentration of hydroxide ions in the dissolution solution was 4 mol / L.

[0073] The purity of the obtained lithium hydroxide monohydrate product was 99.37%. The overall lithium recovery rate was 65.1%.

[0074] Example 8

[0075] Example 3 was repeated, except that in S2, the dissolution was carried out at 90°C for 3.0 h; and the molar concentration of hydroxide ions in the dissolution solution was 4 mol / L.

[0076] The purity of the obtained lithium hydroxide monohydrate product was 99.30%. The overall lithium recovery rate was 80.1%.

[0077] Example 9

[0078] Example 3 was repeated, except that in S2, the dissolution was carried out at 95°C for 3.0 h; and the molar concentration of hydroxide ions in the dissolution solution was 5 mol / L.

[0079] The purity of the obtained lithium hydroxide monohydrate product was 99.20%. The overall lithium recovery rate was 85.7%.

[0080] Example 10

[0081] Example 3 was repeated, except that in S2, the dissolution was carried out at 98°C for 3.0 h; and the molar concentration of hydroxide ions in the dissolution solution was 5.5 mol / L.

[0082] The purity of the obtained lithium hydroxide monohydrate product was 99.70%. The overall lithium recovery rate was 86.2%.

[0083] Example 11

[0084] Repeat Example 9, except that in S2, while stirring and dissolving, an ultrasonic field is applied, with the ultrasonic frequency set to 17.0 kHz and the ultrasonic radiation power to 30 W.

[0085] The purity of the obtained lithium hydroxide monohydrate product was 99.42%. The overall lithium recovery rate was 86.5%.

[0086] Example 12

[0087] Example 9 was repeated, except that in S2, an ultrasonic field was applied simultaneously with stirring and dissolution, and the ultrasonic frequency was set to 18.0 kHz.

[0088] The ultrasonic radiation power is 30W;

[0089] The purity of the obtained lithium hydroxide monohydrate product was 99.07%. The overall lithium recovery rate was 87.0%.

[0090] Example 13

[0091] Example 9 was repeated, except that in S2, an ultrasonic field was applied simultaneously with stirring and dissolution, and the ultrasonic frequency was set to 18.0 kHz.

[0092] The ultrasonic radiation power is 50W;

[0093] The purity of the obtained lithium hydroxide monohydrate product was 99.15%. The overall lithium recovery rate was 90.3%.

[0094] Example 14

[0095] Example 9 was repeated, except that in S2, an ultrasonic field was applied simultaneously with stirring and dissolution, and the ultrasonic frequency was set to 18.0 kHz.

[0096] The ultrasonic radiation power is 80W;

[0097] The purity of the obtained lithium hydroxide monohydrate product was 99.31%. The overall lithium recovery rate was 93.1%.

[0098] Example 15

[0099] Example 9 was repeated, except that in S2, an ultrasonic field was applied simultaneously with stirring and dissolution, and the ultrasonic frequency was set to 18.0 kHz.

[0100] The ultrasonic radiation power is 100W;

[0101] The purity of the obtained lithium hydroxide monohydrate product was 99.30%. The overall lithium recovery rate was 89.7%.

[0102] Example 16

[0103] Repeat Example 9, except that in S2, while stirring and dissolving, an ultrasonic field is applied, with the ultrasonic frequency set to 18.0 kHz and the ultrasonic radiation power set to 120 W.

[0104] The purity of the obtained lithium hydroxide monohydrate product was 99.41%. The overall lithium recovery rate was 89.3%.

[0105] The comparison shows that increasing the ultrasonic radiation power to a certain extent does not significantly improve the lithium recovery rate, and may even lead to a slight decrease in the lithium recovery rate.

[0106] As can be seen from the results of the above embodiments, the method provided by the present invention can recover valuable lithium, aluminum and silicon from lithium-containing waste glass in the form of lithium hydroxide monohydrate and sodalite, respectively. The recovery rate of valuable lithium is high and the product purity is excellent, thus realizing the high-value utilization of lithium-containing waste glass.

[0107] The above embodiments should be understood as being used only to illustrate the present invention more clearly, and not to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art fall within the scope defined by the appended claims.

Claims

1. A method for recycling lithium-containing glass waste, characterized by, The method comprises the following steps: S1, crushing the lithium-containing glass waste to be treated to obtain glass powder; The lithium-containing glass waste is from Li2O-Al2O3-SiO2 glass. S2, mixing the glass powder and the leaching solution, stirring and leaching, then solid-liquid separation to obtain filter residue A and filter liquor B; The dissolving solution is an aqueous solution containing OH - , Al(OH)4 - , alkali metal ions, and acid radical ions; the alkali metal ions are Na + and / or K + , and the acid radical ions include one or more of Cl - , SO4 2- , and NO3 - ; the ratio of Al(OH)4 - to Si in the dissolving solution is 0.1-2.0:

1. S3, lithium precipitation treatment of the filter liquor B to obtain lithium compound product.

2. The method of claim 1, wherein, In S2, the liquid-solid ratio of the leaching solution to the glass powder is 5-20 ml:1 g.

3. The method of claim 2, wherein, In S2, the liquid-solid ratio of the leaching solution to the glass powder is 8-15 ml:1 g.

4. The method of claim 2, wherein, In S2, the molar concentration of OH in the elution solution is 1.0-6.0 mol / L. - In S2, the molar concentration of OH in the elution solution is 1.0-6.0 mol / L.

5. The method of claim 2, wherein, In S2, the ratio of the number of moles of Al(OH)4 - to the number of moles of Si in the glass powder is 0.2-1.5:

1.

6. The method of claim 2, wherein, In S2, the content of the acid radical ion is 20-90 g / L.

7. The method of claim 6, wherein, In S2, the content of the acid radical ion is 40-70 g / L.

8. The method of resourceful utilization of claim 1, wherein, In S2, the glass powder and the leaching solution are mixed and stirred and leached at 60-98°C for 1-4 h.

9. The method of resource utilization of claim 1, wherein, In S2, an ultrasonic field is applied while stirring and leaching; wherein the ultrasonic frequency is 17.0-18.5 kHz.

10. The method of resource utilization of claim 9, wherein, The ultrasonic radiation power is 30-120 W.

11. The method of resourceful utilization of claim 1, wherein, In S3, the filter liquor B is concentrated and crystallized to obtain lithium hydroxide product.

12. The method of resource utilization of claim 11, wherein, The filter liquor B is evaporated and concentrated to obtain concentrated complete liquor C with Li2O content of 15-40 g / L; then the concentrated complete liquor C is mixed with crystal seeds and stirred and reacted at 20-55°C, and when the Li2O content in the solution decreases to 2-5 g / L, solid-liquid separation is performed to obtain lithium hydroxide monohydrate product and filter liquor D; The addition amount of the crystal seeds is 1.0-3.0 wt.% of the concentrated complete liquor C.

13. The method of claim 12, wherein, The crystal seeds include one or more of Li2CO3, LiOH, and LiOH·H2O.

14. The method of claim 12, wherein, The filter liquor D is returned to S2 for building the leaching solution.

15. The resource utilization method according to any one of claims 1 to 14, wherein, The step of treating the filter residue A is also included, i.e. after washing the filter residue A with water, solid-liquid separation is performed to obtain washed residue E and washing liquor F, and the washing liquor F is returned to step S2 for building the leaching solution.

16. The resource utilization method according to any one of claims 1 to 14, wherein, In S1, the particle size of the glass powder is ≤0.3 mm.

17. The method of claim 16, wherein, In S1, the particle size of the glass powder is ≤0.1 mm.

18. The resource utilization method according to any one of claims 1 to 14, wherein, In S1, the lithium-containing glass waste is from one or more of waste 3C electronic product glass cover plate, photovoltaic glass panel, display screen, and defective products and tailings in the lithium-containing glass deep processing process.

19. The resource utilization method according to any one of claims 1-14, wherein, In S1, the lithium-containing glass powder comprises Li2O 0.1-5.5 wt.%, SiO2 39.5-62.1 wt.%, Al2O3 37.8-64.0 wt.%, MgO 0-3.0 wt.%, N2O 0-2.0 wt.%, CaO 0.1-0.50 wt.%, K2O 0-0.5 wt.%, and B2O 2.5-4.0 wt.%.

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