Lithium mica flotation agent, method for preparing same, and method for floating lithium mica

Abstract

The application discloses a lithium mica floating agent, a preparation method thereof and a lithium mica floating method. The lithium mica floating agent has a formula mass ratio of amine 8-35%, ether 10-40%, sodium dodecyl sulfate 8-35%, sodium sulfonate 5-30%, alcohol 10-35% and inorganic alkali 2-15%. The lithium mica floating agent can greatly improve the recovery rate of lithium metal, has very high selectivity to lithium mica, has high floating yield, good purity of the extract and low cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mineral flotation, in particular to a lepidolite flotation agent. BACKGROUND

[0002] In recent years, with the rapid development of new energy vehicles, the mining of domestic lepidolite has reached an unprecedented development, especially in the trillion lithium Yichun of Jiangxi which is rich in lepidolite. Especially after a large number of enterprises are newly built and expanded, it is estimated that in the future, nearly 60 million tons of lepidolite ore processing capacity will be put into production every year. According to the current mainstream flotation method, the metal recovery rate is about 70%, and about 30% of lithium resources are wasted at the front end of the ore dressing end every year. Therefore, how to efficiently extract lepidolite concentrate from lepidolite ore has become a problem that all ore dressing enterprises urgently need to solve. In particular, the flotation reagent for efficient flotation of lepidolite is even more scarce. SUMMARY

[0003] The main purpose of the present application is to provide a lepidolite flotation agent, which aims to solve the above technical problems.

[0004] To achieve the above purpose, the present application provides a lepidolite flotation agent with a formula mass ratio of: amine: 8-35%, ether: 10-40%, sodium dodecyl sulfate: 8-35%, sodium sulfonate: 5-30%, alcohol: 10-35%, and inorganic base: 2-15%.

[0005] In an embodiment, the amine includes one or more combinations of cationic polyacrylamide, poly(diallyldimethylammonium chloride), polyamine, laurylamine, dodecylamine, tetradecylamine, hexadecylamine, oleylamine, N-dodecylacetamide, melamine-formaldehyde resin, polybiguanide, and any combination thereof.

[0006] In an embodiment, the ether includes one or more combinations of fatty ethers and aromatic ethers.

[0007] In an embodiment, the ether is a C8-18 fatty ether, an aromatic ether, or a mixed ether, or a mixture of two or more solvents thereof.

[0008] In an embodiment, the alcohol includes one or more combinations of various fatty alcohols and aromatic alcohols.

[0009] In an embodiment, the aromatic alcohol includes one or more combinations of benzyl alcohol, p-fluorobenzyl alcohol, p-xylenol, p-nitrobenzyl alcohol, p-chlorobenzyl alcohol, p-methylbenzyl alcohol, and p-bromobenzyl alcohol.

[0010] In an embodiment, the fatty alcohol is a C6-C16 fatty alcohol.

[0011] In an embodiment, the inorganic base comprises one or more of a combination of sodium hydroxide, lithium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, lithium carbonate.

[0012] In addition, the application further provides a preparation method of the lithium mica flotation agent, which comprises the following steps: uniformly mixing a certain amount of amine, ether, sodium dodecyl sulfate, sodium sulfonate, alcohol and inorganic base to obtain a mixture, and the mixture is the lithium mica flotation agent.

[0013] In addition, the application further provides a lithium mica flotation method, which adopts the lithium mica flotation agent as described above to float the lithium mica.

[0014] Compared with the prior art, the application has the following beneficial effects:

[0015] The application can greatly improve the recovery rate of lithium metal, has very high selectivity for lithium mica, has high flotation yield, good purity of the extract and low cost.

[0016] The application has simple production process, low cost, stable product quality and easy industrial production. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0018] In addition, the technical solutions in the embodiments of the application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize the combination. When the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope of the application.

[0019] The application provides a lithium mica flotation agent with a mass ratio of the components as follows: amine: 8-35%, ether: 10-40%, sodium dodecyl sulfate: 8-35%, sodium sulfonate: 5-30%, alcohol: 10-35% and inorganic base: 2-15%.

[0020] In an embodiment, the amine comprises cationic polyacrylamide, poly(diallyldimethylammonium chloride), polyamine, laurylamine, dodecylamine, tetradecylamine, hexadecylamine, oleylamine, N-dodecylacetamide, melamine-formaldehyde resin, polybiguanide and any combination thereof.

[0021] In one embodiment, the ether includes one or more combinations of aliphatic ethers and aromatic ethers.

[0022] In one embodiment, the ether is a C8-18 aliphatic ether, aromatic ether, or mixed ether, or a mixture of two or more solvents thereof.

[0023] In one embodiment, the alcohol includes one or more combinations of various fatty alcohols and aromatic alcohols.

[0024] In one embodiment, the aromatic alcohol includes one or more combinations of benzyl alcohol, p-fluorobenzyl alcohol, p-phenylenediethanol, p-nitrobenzyl alcohol, p-chlorobenzyl alcohol, p-methylbenzyl alcohol, and p-bromobenzyl alcohol.

[0025] In one embodiment, the fatty alcohol is a C6-C16 fatty alcohol.

[0026] In one embodiment, the inorganic base includes one or more combinations of sodium hydroxide, lithium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, and lithium carbonate.

[0027] In the above embodiments, the different components of amines, ethers, alcohols and inorganic bases proposed can be freely combined, and no restrictions are imposed here.

[0028] In addition, the present invention also provides a method for preparing a lepidolite flotation agent, the method comprising: taking a certain amount of amine, ether, sodium dodecyl sulfate, sodium sulfonate, alcohol and inorganic base, mixing them evenly to obtain a mixture, the mixture being the lepidolite flotation agent.

[0029] In addition, the present invention also provides a flotation method for lepidolite, which uses the lepidolite flotation agent described above to float lepidolite.

[0030] Example 1

[0031] This invention provides a high-efficiency flotation reagent for lepidolite, wherein the weight ratio of its components is as follows:

[0032] Mixed amines: 25%, mixed ethers: 20%, K12: 20%, sodium sulfonate: 10%, mixed alcohols: 15%, inorganic bases: 10%.

[0033] The mixed amine, mixed ether, K12, sodium sulfonate, mixed alcohol, and inorganic base are mixed in the above proportions, with the sum of the weight percentages of each component being 100%. The mixture is stirred evenly to obtain the finished product, which is a flotation reagent. This flotation reagent is used for the flotation extraction of lepidolite concentrate from lepidolite ore.

[0034] Example 2

[0035] This invention provides a high-efficiency flotation reagent for lepidolite, wherein the weight ratio of its components is as follows:

[0036] Mixed amines: 8%, mixed ethers: 30%, K12: 12%, sodium sulfonate: 30%, mixed alcohols: 5%, inorganic bases: 15%.

[0037] The mixed amine, mixed ether, K12, sodium sulfonate, mixed alcohol, and inorganic base are mixed in the above proportions, with the sum of the weight percentages of each component being 100%. The mixture is stirred evenly to obtain the finished product, which is a flotation reagent. This flotation reagent is used for the flotation extraction of lepidolite concentrate from lepidolite ore.

[0038] Example 3

[0039] This invention provides a high-efficiency flotation reagent for lepidolite, wherein the weight ratio of its components is as follows:

[0040] Mixed amines: 15%, mixed ethers: 15%, K12: 35%, sodium sulfonate: 20%, mixed alcohols: 10%, inorganic bases: 5%.

[0041] The mixed amine, mixed ether, K12, sodium sulfonate, mixed alcohol, and inorganic base are mixed in the above proportions, with the sum of the weight percentages of each component being 100%. The mixture is stirred evenly to obtain the finished product, which is a flotation reagent. This flotation reagent is used for the flotation extraction of lepidolite concentrate from lepidolite ore.

[0042] Example 4

[0043] This invention provides a high-efficiency flotation reagent for lepidolite, wherein the weight ratio of its components is as follows:

[0044] Mixed amines: 30%, mixed ethers: 10%, K12: 10%, sodium sulfonate: 15%, mixed alcohols: 30%, inorganic bases: 5%.

[0045] The mixed amine, mixed ether, K12, sodium sulfonate, mixed alcohol, and inorganic base are mixed in the above proportions, with the sum of the weight percentages of each component being 100%. The mixture is stirred evenly to obtain the finished product, which is a flotation reagent. This flotation reagent is used for the flotation extraction of lepidolite concentrate from lepidolite ore.

[0046] Example 5

[0047] This invention provides a high-efficiency flotation reagent for lepidolite, wherein the weight ratio of its components is as follows:

[0048] Mixed amines: 35%, mixed ethers: 35%, K12: 8%, sodium sulfonate: 5%, mixed alcohols: 15%, inorganic bases: 2%.

[0049] The mixed amine, mixed ether, K12, sodium sulfonate, mixed alcohol, and inorganic base are mixed in the above proportions, with the sum of the weight percentages of each component being 100%. The mixture is stirred evenly to obtain the finished product, which is a flotation reagent. This flotation reagent is used for the flotation extraction of lepidolite concentrate from lepidolite ore.

[0050] Example 6

[0051] This invention provides a high-efficiency flotation reagent for lepidolite, wherein the weight ratio of its components is as follows:

[0052] Mixed amines: 10%, mixed ethers: 40%, K12: 30%, sodium sulfonate: 5%, mixed alcohols: 12%, inorganic bases: 3%.

[0053] The mixed amine, mixed ether, K12, sodium sulfonate, mixed alcohol, and inorganic base are mixed in the above proportions, with the sum of the weight percentages of each component being 100%. The mixture is stirred evenly to obtain the finished product, which is a flotation reagent. This flotation reagent is used for the flotation extraction of lepidolite concentrate from lepidolite ore.

[0054] 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 transformations made under the concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A lithium mica flotation agent, characterized in that, The formulation of the lithium mica flotation agent has the following mass ratio: amine: 8-35%, ether: 10-40%, sodium dodecyl sulfate: 8-35%, sodium sulfonate: 5-30%, alcohol: 10-35%, inorganic base: 2-15%. The amine includes one or more combinations of cationic polyacrylamide, polydiallyl dimethyl ammonium chloride, polyamine, laurylamine, dodecylamine, tetradecylamine, hexadecylamine, oleylamine, N-dodecylacetamide, melamine-formaldehyde resin, and polydicyandiamide. The ether includes one or more combinations of aliphatic ethers and aromatic ethers, wherein the ether is a C8-18 aliphatic ether, aromatic ether, or mixed ether, or a mixture of two or more solvents thereof. The alcohol includes one or more combinations of various aliphatic alcohols and aromatic alcohols, wherein the aromatic alcohol includes one or more combinations of benzyl alcohol, p-fluorobenzyl alcohol, p-phenylenediol, p-nitrobenzyl alcohol, p-chlorobenzyl alcohol, p-methylbenzyl alcohol, and p-bromobenzyl alcohol, wherein the aliphatic alcohol is C6-C6.

16. Fatty alcohols, wherein the inorganic base includes one or more combinations of sodium hydroxide, lithium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, and lithium carbonate.

2. A method for preparing a lithium mica flotation agent, characterized in that, The method for preparing the lepidolite flotation agent includes: taking a certain amount of amine, ether, sodium dodecyl sulfate, sodium sulfonate, alcohol and inorganic base, mixing them evenly to obtain a mixture, wherein the mixture is the lepidolite flotation agent.

3. A method for flotation of lithium mica, characterized in that, Lithium mica was floated using the lithium mica flotation agent as described in claim 1.