Cleaning agent for removing clausena lansium of vein quartz mine as well as preparation method and application method of cleaning agent

Abstract

The invention relates to the technical field of water-based cleaning agents, in particular to a cleaning agent for removing vein quartz mine clausena lansium, which comprises a metal chelating agent, a dispersing agent, an organic weak acid and a plant-based surfactant, the mass ratio of the metal chelating agent to the dispersing agent to the organic weak acid to the plant-based surfactant is (1-5): (0.5-3): (5-10): (0.1-0.5). The chelating agent can be effectively complexed with metal ions, the dispersing agent helps to suspend sediments generated in the cleaning process, and secondary pollution is prevented; the organic weak acid dissolves impurities on the surface under mild conditions, and the plant-based surfactant can further improve the permeability and uniformity of the cleaning solution and enhance the overall cleaning effect. The cleaning agent does not contain strong acid and strong alkali, is environment-friendly, has a good reaction effect with iron-containing oxides, can effectively remove clausena lansium impurities on the surface of vein quartz ore, is easy to dissolve in water, convenient to prepare, small in dosage and low in cost, and can be recycled.

Description

Technical Field

[0001] The invention relates to the technical field of water-based cleaning agents, and in particular to a cleaning agent for removing yellow skin of vein quartz ore and a preparation and application method thereof. Background Art

[0002] During the mining and processing of vein quartz ore, a layer of yellow impurity sediments often adheres to the surface of the mineral, which is usually called "yellow skin". These sediments are mainly composed of metal oxides such as iron and aluminum and other impurities, which seriously affect the purity of vein quartz ore and its subsequent industrial applications, especially in high-tech fields such as photovoltaics, electronics, and optical fibers, which require extremely high purity of quartz ore. Therefore, removing the yellow skin on the surface of vein quartz ore becomes a key step in the purification process.

[0003] Traditional quartz ore cleaning methods mainly include mechanical cleaning, acid cleaning and chemical cleaning. Mechanical cleaning is difficult to completely remove the yellow skin on the surface, and may cause damage to the mineral surface. Acid cleaning is a commonly used method to remove yellow skin. The metal oxides on the surface of the mineral can be effectively dissolved by using strong acids such as hydrochloric acid and nitric acid. However, there are some obvious disadvantages in strong acid cleaning: first, the acidic environment will cause corrosion of the mineral body and reduce the quality of the quartz ore; second, these strong acids will produce a large amount of acidic wastewater containing fluoride ions and chloride ions. Acidic wastewater has a greater risk of pollution to the environment, which increases the difficulty and cost of waste acid and wastewater treatment. Therefore, it is of great practical significance to develop a mild and efficient cleaning agent that can maintain the high purity of vein quartz ore while removing yellow skin and reduce pollution to the environment.

[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to those skilled in the art. Summary of the invention

[0005] The first purpose of the present invention is to provide a cleaning agent for removing the yellow skin of vein quartz ore, which can replace traditional strong acid agents and react with iron-containing oxides. It can not only maintain a high cleaning efficiency when removing the yellow skin of vein quartz ore, but also reduce corrosion to the mineral surface and pollution to the environment, and has important technical and environmental protection value.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A cleaning agent for removing yellow skin from vein quartz ore, comprising a metal chelating agent, a dispersant, an organic weak acid and a plant-based surfactant; the mass ratio of the metal chelating agent, the dispersant, the organic weak acid and the plant-based surfactant is 1-5:0.5-3:5-10:0.1-0.5. Among them, the metal chelating agent removes metal impurities on the surface of the mineral by complexation, and the organic weak acid further enhances the removal effect of metal oxides by dissolution. The two act synergistically to effectively remove the yellow skin on the surface of vein quartz ore without excessively corroding the mineral. The dispersant forms a protective layer on the surface of the mineral to prevent the suspended particles generated during the cleaning process from re-depositing, keep the impurities in a suspended state, and ensure that the impurities can be discharged with the cleaning liquid. The plant-based surfactant reduces the surface tension and improves the wetting ability of the cleaning liquid, so that the chelating agent, the dispersant and the organic acid can act more fully on the surface of the mineral and enhance the cleaning effect.

[0008] Furthermore, the metal chelating agent includes triethanolamine, and one of sodium tripolyphosphate, EDTMPS or EDTA-disodium, or a mixture of the two in any proportion.

[0009] As a preferred embodiment, the metal chelating agent comprises: 20% to 40% triethanolamine; the mixed mass ratio of sodium tripolyphosphate, EDTMPS and EDTA-disodium is 60% to 80%; wherein sodium tripolyphosphate, EDTMPS and EDTA-disodium are mixed in any proportion, and the amount of each component is between 0% and 60%. Among them, if a stronger chelating effect is required, EDTA-disodium can account for a larger proportion; if it is desired to balance the cleaning effect and the scale inhibition effect, the proportion of EDTMPS and sodium tripolyphosphate can be increased.

[0010] Metal chelators bind to metal ions (such as Fe 3+ 、Al 3+ ) form a stable chelate, significantly reducing the activity of metal ions, thereby dissolving the metal oxides on the surface of the mineral. The essence of this process is the formation of a multi-coordinated stable complex between the chelating agent and the metal ion, making the insoluble metal oxides or hydroxides (such as Fe 2 O 3 、Al 2 O 3 ) can be effectively removed and dissolved into the solution. As an auxiliary chelating agent, triethanolamine can help chelate metal ions that are difficult to be complexed, enhance the chelating ability of the main chelating agent (such as EDTMPS, EDTA-disodium), and stabilize the complex in the solution.

[0011] Furthermore, the dispersant is one of sodium polyacrylate, maleic anhydride-methacrylic acid copolymer, and carboxymethyl cellulose, or several of them in any proportion.

[0012] After the metal oxides are complexed and dissolved by the chelating agent, the impurity particles and sediments on the surface of the mineral may re-form suspension in the solution, resulting in secondary deposition. The dispersant ionizes in the aqueous solution to generate negative charges, which are adsorbed on the surface of the impurity particles. By increasing the electrostatic repulsion between the particles, the particles are prevented from aggregating with each other or depositing back on the surface of the mineral. At the same time, by forming a layer of molecular barrier on the surface of the mineral, a physical barrier is provided to prevent the impurity particles from approaching each other and keep the particles in a uniform suspension state in the solution. The re-deposition of impurity particles is effectively prevented, ensuring that the impurities remain suspended in the cleaning solution and are completely removed as the cleaning solution is discharged.

[0013] Furthermore, the organic weak acid is one of acetic acid, citric acid, and carbonic acid, or any combination thereof. Preferably, the organic weak acid is citric acid. As a mild acid, the organic weak acid can provide a moderate acidic environment on the surface of the mineral, dissolving metal oxides (such as Fe 2 O 3 、Al 2 O 3 ):

[0014] Fe 2 O 3 +6H + →2Fe 3+ +3H 2 O

[0015] This process converts solid metal oxides into soluble metal ions, thereby removing the yellow skin on the surface of vein quartz. Compared with strong acids (such as hydrochloric acid and nitric acid), organic weak acids have lower corrosiveness and will not cause serious damage to the vein quartz body. Its moderate acidity can ensure the cleaning effect while maintaining the structural integrity of the quartz ore.

[0016] Furthermore, the plant-based surfactant is saponin.

[0017] During the cleaning process, saponin reduces the surface tension of the solution, thus enhancing the wetting and penetration of the cleaning solution on the mineral surface, helping the chelating agent and organic acid to better contact the mineral surface and yellow skin impurities. At the same time, it can reduce the surface tension of the aqueous solution by adsorbing on the water-mineral interface, so that the cleaning solution can better wet and penetrate into the micropores or rough areas on the surface of the quartz ore, enhancing the coverage effect of the cleaning solution, and ensuring that the chelating agent and organic acid can act evenly on the mineral surface.

[0018] The second object of the present invention is to provide a method for preparing a cleaning agent for removing the yellow skin of vein quartz ore, which has the same technical effect.

[0019] The above technical objectives of the present invention are achieved through the following technical solutions:

[0020] A method for preparing a cleaning agent for removing yellow skin of vein quartz ore comprises the following steps:

[0021] Mix the metal chelating agent, dispersant, organic weak acid and plant-based surfactant evenly in a mixing barrel according to the proportion, and then package and store them.

[0022] Furthermore, the mixing temperature is 20-30°C to avoid the degradation of saponin at over 40°C, which may affect the stability and effect of the cleaning agent. The mixing time is 5-30 minutes. If the components have been prepared in liquid form in advance during the preparation process, a mixing time of 5-10 minutes is usually sufficient. If dispersants such as sodium polyacrylate and maleic anhydride copolymer that have a certain dissolution time are directly used, it is necessary to ensure uniform distribution through sufficient stirring. At this time, mechanical stirrers and other equipment can be used for strong stirring to ensure uniform mixing of the components. The mixing and stirring speed is 300-500r / min. Ensure that all components are completely dissolved, while avoiding excessive foaming caused by high speed. After the cleaning agent is prepared, store it at room temperature to avoid high temperatures and direct sunlight.

[0023] The third object of the present invention is to provide an application method of a cleaning agent for removing yellow skin of vein quartz ore, which can effectively remove yellow skin on the surface of vein quartz ore. The agent has a small dosage, can be recycled, is environmentally friendly, and has a lower cost than traditional strong acid agents, and has good economic efficiency.

[0024] The above technical objectives of the present invention are achieved through the following technical solutions:

[0025] A method for applying a cleaning agent for removing yellow skin of vein quartz ore, comprising the following steps:

[0026] S01: Crush the vein quartz ore to within 30cm and keep the surface of the crushed stone dry for later use;

[0027] S02: Mix the metal chelating agent, dispersant, organic weak acid and plant-based surfactant in a proportion in a dispensing barrel, and then pump them into the cleaning agent storage tank for storage;

[0028] S03: Put the weighed gravel into the cleaning tank, open the valve of the cleaning agent storage tank, inject the cleaning agent into the cleaning tank, and then inject tap water to the liquid level height just covering the gravel, soak for 12 to 24 hours, open the cleaning tank valve after the end, and pump the cleaning agent back into the storage tank for reuse.

[0029] Furthermore, in step S03, the mass ratio of the cleaning agent to the vein quartz ore is 1:50-150.

[0030] In summary, the present invention has the following beneficial effects:

[0031] The cleaning agent for removing yellow skin of vein quartz ore provided by the present invention is mainly prepared by metal chelating agent, dispersant, organic weak acid and plant-based surfactant, wherein the chelating agent can effectively complex metal ions, the dispersant helps to suspend the sediment generated during the cleaning process to prevent secondary pollution; the organic weak acid dissolves the impurities on the surface under mild conditions, and the plant-based surfactant can further improve the permeability and uniformity of the cleaning liquid and enhance the overall cleaning effect. The cleaning agent does not contain strong acid or strong alkali, is environmentally friendly, has a good reaction effect with iron-containing oxides, can effectively remove yellow skin impurities on the surface of vein quartz ore, is easily soluble in water, is easy to prepare, and has a small amount, low cost, and can be repeatedly recycled. DETAILED DESCRIPTION

[0032] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, a cleaning agent for removing yellow skin of vein quartz ore and its preparation and application method proposed by the present invention, its specific implementation method, characteristics and effects are described in detail as follows.

[0033] Sources of raw materials used in the embodiments and comparative examples:

[0034] Components Commercial sources Triethanolamine Longjiang Chemical EDTMPS Shandong Delan Sodium tripolyphosphate Sichuan Sandia International Trade Co., Ltd. EDTA-Disodium Jieda Chemical Sodium polyacrylate MacLean's reagent Maleic anhydride-methacrylic acid copolymer Sigma-Aldrich Carboxymethyl cellulose Sigma-Aldrich Citric Acid Sigma-Aldrich acetic acid Zhejiang Petrochemical Carbonic acid Sigma-Aldrich hydrochloric acid Xi'an Geely Saponin Tianjin Xidian Chemical Technology Co., Ltd.

[0035] Example 1

[0036] A cleaning agent for removing yellow peel of vein quartz ore comprises a metal chelating agent (40% triethanolamine, 20% sodium tripolyphosphate, 40% EDTA-disodium), a dispersant (sodium polyacrylate), an organic weak acid (citric acid) and a plant-based surfactant (saponin); the mass ratio of the metal chelating agent, the dispersant, the organic weak acid and the plant-based surfactant is 5:0.5:6:0.1.

[0037] A method for preparing a cleaning agent for removing yellow skin of vein quartz ore comprises the following steps: uniformly mixing a metal chelating agent, a dispersant, an organic weak acid and a plant-based surfactant in a proportion in a dispensing barrel, and then packaging and storing the mixture in separate containers.

[0038] A method for applying a cleaning agent for removing yellow skin of vein quartz ore, comprising the following steps:

[0039] S01: Crush the vein quartz ore to within 30cm and keep the surface of the crushed stone dry for later use;

[0040] S02: Mix the metal chelating agent, dispersant, organic weak acid and plant-based surfactant in a proportion in a dispensing barrel, and then pump them into the cleaning agent storage tank for storage;

[0041] S03: Put the weighed gravel into the cleaning tank, open the valve of the cleaning agent storage tank, inject the cleaning agent into the cleaning tank, and then inject tap water to the liquid level just enough to cover the gravel. Soak for 12 hours. After the end, open the valve of the cleaning tank and pump the cleaning agent back into the storage tank for reuse.

[0042] Furthermore, in step S03, the mass ratio of the cleaning agent to the vein quartz ore is 1:100.

[0043] Example 2

[0044] A cleaning agent for removing yellow peel of vein quartz ore comprises a metal chelating agent (20% triethanolamine, 60% EDTMPS, 20% sodium tripolyphosphate), a dispersant (maleic anhydride-methacrylic acid copolymer), an organic weak acid (acetic acid) and a plant-based surfactant (saponin); the mass ratio of the metal chelating agent, the dispersant, the organic weak acid and the plant-based surfactant is 5:1:8:0.3.

[0045] A method for preparing a cleaning agent for removing yellow skin of vein quartz ore comprises the following steps: uniformly mixing a metal chelating agent, a dispersant, an organic weak acid and a plant-based surfactant in a proportion in a dispensing barrel, and then packaging and storing the mixture in separate containers.

[0046] A method for applying a cleaning agent for removing yellow skin of vein quartz ore, comprising the following steps:

[0047] S01: Crush the vein quartz ore to within 30cm and keep the surface of the crushed stone dry for later use;

[0048] S02: Mix the metal chelating agent, dispersant, organic weak acid and plant-based surfactant in a proportion in a dispensing barrel, and then pump them into the cleaning agent storage tank for storage;

[0049] S03: Put the weighed gravel into the cleaning tank, open the valve of the cleaning agent storage tank, inject the cleaning agent into the cleaning tank, and then inject tap water to the liquid level just enough to cover the gravel. Soak for 18 hours. After the end, open the valve of the cleaning tank and pump the cleaning agent back into the storage tank for reuse.

[0050] Furthermore, in step S03, the mass ratio of the cleaning agent to the vein quartz ore is 1:75.

[0051] Example 3

[0052] A cleaning agent for removing yellow peel of vein quartz ore comprises a metal chelating agent (40% triethanolamine, 30% sodium tripolyphosphate, 30% EDTA-disodium), a dispersant (carboxymethyl cellulose), an organic weak acid (citric acid) and a plant-based surfactant (saponin); the mass ratio of the metal chelating agent, the dispersant, the organic weak acid and the plant-based surfactant is 5:0.8:7:0.2.

[0053] A method for preparing a cleaning agent for removing yellow skin of vein quartz ore comprises the following steps: uniformly mixing a metal chelating agent, a dispersant, an organic weak acid and a plant-based surfactant in a proportion in a dispensing barrel, and then packaging and storing the mixture in separate containers.

[0054] A method for applying a cleaning agent for removing yellow skin of vein quartz ore, comprising the following steps:

[0055] S01: Crush the vein quartz ore to within 30cm and keep the surface of the crushed stone dry for later use;

[0056] S02: Mix the metal chelating agent, dispersant, organic weak acid and plant-based surfactant in a proportion in a dispensing barrel, and then pump them into the cleaning agent storage tank for storage;

[0057] S03: Put the weighed gravel into the cleaning tank, open the valve of the cleaning agent storage tank, inject the cleaning agent into the cleaning tank, and then inject tap water to the liquid level height just covering the gravel, soak for 16 hours, open the cleaning tank valve after the end, and pump the cleaning agent back into the storage tank for reuse.

[0058] Furthermore, in step S03, the mass ratio of the cleaning agent to the mass of the vein quartz ore is 1:120.

[0059] Example 4

[0060] A cleaning agent for removing yellow skin of vein quartz ore comprises a metal chelating agent (40% triethanolamine, 60% sodium tripolyphosphate), a dispersant (sodium polyacrylate), an organic weak acid (carbonic acid) and a plant-based surfactant (saponin); the mass ratio of the metal chelating agent, the dispersant, the organic weak acid and the plant-based surfactant is 4:1.2:9:0.4.

[0061] A method for preparing a cleaning agent for removing yellow skin of vein quartz ore comprises the following steps: uniformly mixing a metal chelating agent, a dispersant, an organic weak acid and a plant-based surfactant in a proportion in a dispensing barrel, and then packaging and storing the mixture in separate containers.

[0062] A method for applying a cleaning agent for removing yellow skin of vein quartz ore, comprising the following steps:

[0063] S01: Crush the vein quartz ore to within 30cm and keep the surface of the crushed stone dry for later use;

[0064] S02: Mix the metal chelating agent, dispersant, organic weak acid and plant-based surfactant in a proportion in a dispensing barrel, and then pump them into the cleaning agent storage tank for storage;

[0065] S03: Put the weighed gravel into the cleaning tank, open the valve of the cleaning agent storage tank, inject the cleaning agent into the cleaning tank, and then inject tap water to the liquid level just enough to cover the gravel, soak for 24 hours, then open the valve of the cleaning tank and pump the cleaning agent back into the storage tank for reuse.

[0066] Furthermore, in step S03, the mass ratio of the cleaning agent to the vein quartz ore is 1:50.

[0067] Comparative Example 1

[0068] A cleaning agent for removing yellow skin of vein quartz ore comprises a metal chelating agent (40% triethanolamine, 20% sodium tripolyphosphate, 40% EDTA-disodium), a dispersant (sodium polyacrylate) and an organic weak acid (citric acid); the mass ratio of the metal chelating agent, the dispersant and the organic weak acid is 5:0.5:6.

[0069] A method for preparing a cleaning agent for removing yellow skin of vein quartz ore comprises the following steps: uniformly mixing a metal chelating agent, a dispersant and an organic weak acid in a proportion in a dispensing barrel, and then packaging and storing the mixture in separate portions.

[0070] A method for applying a cleaning agent for removing yellow skin of vein quartz ore, comprising the following steps:

[0071] S01: Crush the vein quartz ore to within 30cm and keep the surface of the crushed stone dry for later use;

[0072] S02: Mix the metal chelating agent, dispersant and organic weak acid in proportion in a preparation barrel, and then pump them into the cleaning agent storage tank for storage;

[0073] S03: Put the weighed gravel into the cleaning tank, open the valve of the cleaning agent storage tank, inject the cleaning agent into the cleaning tank, and then inject tap water to the liquid level just enough to cover the gravel. Soak for 12 hours. After the end, open the valve of the cleaning tank and pump the cleaning agent back into the storage tank for reuse.

[0074] Furthermore, in step S03, the mass ratio of the cleaning agent to the vein quartz ore is 1:100.

[0075] Comparative Example 2

[0076] A cleaning agent for removing yellow peel of vein quartz ore comprises a metal chelating agent (40% EDTMPS, 20% sodium tripolyphosphate, 40% EDTA-disodium), a dispersant (sodium polyacrylate), an organic weak acid (citric acid) and a plant-based surfactant (saponin); the mass ratio of the metal chelating agent, the dispersant, the organic weak acid and the plant-based surfactant is 5:0.5:6:0.1.

[0077] A method for preparing a cleaning agent for removing yellow skin of vein quartz ore comprises the following steps: uniformly mixing a metal chelating agent, a dispersant, an organic weak acid and a plant-based surfactant in a proportion in a dispensing barrel, and then packaging and storing the mixture in separate containers.

[0078] A method for applying a cleaning agent for removing yellow skin of vein quartz ore, comprising the following steps:

[0079] S01: Crush the vein quartz ore to within 30cm and keep the surface of the crushed stone dry for later use;

[0080] S02: Mix the metal chelating agent, dispersant, organic weak acid and plant-based surfactant in a proportion in a dispensing barrel, and then pump them into the cleaning agent storage tank for storage;

[0081] S03: Put the weighed gravel into the cleaning tank, open the valve of the cleaning agent storage tank, inject the cleaning agent into the cleaning tank, and then inject tap water to the liquid level just enough to cover the gravel. Soak for 12 hours. After the end, open the valve of the cleaning tank and pump the cleaning agent back into the storage tank for reuse.

[0082] Furthermore, in step S03, the mass ratio of the cleaning agent to the vein quartz ore is 1:100.

[0083] Comparative Example 3

[0084] A cleaning agent for removing yellow skin of vein quartz ore comprises a metal chelating agent (40% triethanolamine, 20% sodium tripolyphosphate, 40% EDTA-disodium), a dispersant (sodium polyacrylate), hydrochloric acid and a plant-based surfactant (saponin); the mass ratio of the metal chelating agent, the dispersant, the hydrochloric acid and the plant-based surfactant is 5:0.5:6:0.1.

[0085] A method for preparing a cleaning agent for removing yellow skin of vein quartz ore comprises the following steps: uniformly mixing a metal chelating agent, a dispersant, hydrochloric acid and a plant-based surfactant in a proportion in a dispensing barrel, and then packaging and storing the mixture in separate containers.

[0086] A method for applying a cleaning agent for removing yellow skin of vein quartz ore, comprising the following steps:

[0087] S01: Crush the vein quartz ore to within 30cm and keep the surface of the crushed stone dry for later use;

[0088] S02: Mix the metal chelating agent, dispersant, hydrochloric acid and plant-based surfactant in a proportion in a dispensing barrel, and then pump them into the cleaning agent storage tank for storage;

[0089] S03: Put the weighed gravel into the cleaning tank, open the valve of the cleaning agent storage tank, inject the cleaning agent into the cleaning tank, and then inject tap water to the liquid level just enough to cover the gravel. Soak for 12 hours. After the end, open the valve of the cleaning tank and pump the cleaning agent back into the storage tank for reuse.

[0090] Furthermore, in step S03, the mass ratio of the cleaning agent to the vein quartz ore is 1:100.

[0091] Performance Testing

[0092] A vein quartz ore sample was selected, and cleaning treatment was performed according to the formula and operation method in the embodiment and its performance was tested. The specific performance data are as follows:

[0093]

[0094] As shown above, compared with Example 1, Comparative Example 1 did not add a plant-based surfactant, resulting in a slightly inferior yellow peel removal effect. This indicates that the plant-based surfactant helps to improve the permeability and detergency of the cleaning agent, and the permeability and dispersibility of the cleaning agent are slightly reduced, and the yellow peel removal effect will also be affected.

[0095] Compared with Example 1, Comparative Example 2 does not use triethanolamine. The absence of triethanolamine as a complexing agent slightly reduces the complexing effect of some metal ions and slightly weakens the cleaning effect.

[0096] Comparative Example 3 Compared with Example 1, hydrochloric acid is used. Hydrochloric acid is a strong acid with stronger corrosion and etching ability, and can effectively remove the yellow skin of vein quartz ore. The cleaning effect may be significantly improved in a short time. However, due to the strong corrosion property of hydrochloric acid, the wear rate of the vein quartz ore itself increases.

[0097] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cleaning agent for removing yellow skin of vein quartz ore, characterized in that: It comprises a metal chelating agent, a dispersant, an organic weak acid and a plant-based surfactant; the mass ratio of the metal chelating agent, the dispersant, the organic weak acid and the plant-based surfactant is 1-5:0.5-3:5-10:0.1-0.

5.

2. A cleaning agent for removing yellow skin of vein quartz ore according to claim 1, characterized in that: The metal chelating agent includes triethanolamine, and one of sodium tripolyphosphate, EDTMPS or EDTA-disodium, or a mixture of the two in any proportion.

3. A cleaning agent for removing yellow skin of vein quartz ore according to claim 2, characterized in that: The metal chelating agent comprises: 20% to 40% triethanolamine; the mixing mass ratio of sodium tripolyphosphate, EDTMPS and disodium EDTA is 60% to 80%; wherein the sodium tripolyphosphate, the EDTMPS and the disodium EDTA are mixed in any proportion, and the dosage of each component is between 0% and 60%.

4. A cleaning agent for removing yellow skin of vein quartz ore according to claim 1, characterized in that: The dispersant is one of sodium polyacrylate, maleic anhydride-methacrylic acid copolymer, and carboxymethyl cellulose, or any combination thereof in any proportion.

5. A cleaning agent for removing yellow skin of vein quartz ore according to claim 1, characterized in that: The organic weak acid is one of acetic acid, citric acid and carbonic acid or several of them in any proportion.

6. A cleaning agent for removing yellow skin of vein quartz ore according to claim 1, characterized in that: The plant-based surfactant is saponin.

7. A method for preparing a cleaning agent for removing yellow skin of vein quartz ore according to any one of claims 1 to 6, characterized in that: The steps are as follows: The metal chelating agent, the dispersant, the organic weak acid and the plant-based surfactant are mixed evenly in a dispensing barrel according to a certain proportion, and then packaged and stored.

8. The method for preparing a cleaning agent for removing yellow skin of vein quartz ore according to claim 7, characterized in that: The mixing temperature is 20~30℃, the mixing time is 5~30min, and the mixing speed is 300~500r / min.

9. The application method of the cleaning agent for removing yellow skin of vein quartz ore according to any one of claims 1 to 6, characterized in that: The steps are as follows: S01: crushing the vein quartz ore to within 30 cm, and keeping the surface of the crushed stone dry for later use; S02: Mix the metal chelating agent, dispersant, organic weak acid and plant-based surfactant in a proportion in a dispensing barrel, and then pump them into the cleaning agent storage tank for storage; S03: Put the weighed gravel into the cleaning tank, open the valve of the cleaning agent storage tank, inject the cleaning agent into the cleaning tank, and then inject tap water to the liquid level just enough to cover the gravel, soak for 12 to 24 hours. After the end, open the valve of the cleaning tank and pump the cleaning agent back into the storage tank for reuse.

10. The application method of the cleaning agent for removing yellow skin of vein quartz ore according to claim 9, characterized in that: In step S03, the mass ratio of the cleaning agent to the vein quartz ore is 1:50-150.

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