A beneficiation method for extracting high-grade rutile using titanium slag chloride

Abstract

The invention discloses a beneficiation method for extracting high-grade rutile using titanium slag, which comprises the following steps: S1, loading into the bin; S2, crushing and pulping; S3, classifying by a hydrocyclone; S4, separating the pulp by a chute; S5, separating the tailing pulp A by a shaking table and a suspension vibrator to obtain concentrate B and tailing pulp B; S6, the above-mentioned concentrate A and concentrate B are merged and put into the concentrate pond, and the tail water is discharged into the sand settling pond through natural water filtration in the concentrate pond, and the water in the sand settling pond is used for the ball mill and the chute. The process of the invention is simple, the technology is continuous, the production capacity is large, the separation index is good, the operation is simple in the process, there is no environmental pollution problem, the filter cake has good forming, low moisture content, low beneficiation cost and high economic benefit.

Description

Technical Field

[0001] The invention relates to the technical field of mineral resources, and particularly relates to a beneficiation method for extracting high-grade rutile using titanium chloride slag. Background Art

[0002] Rutile is a complex ore with a high proportion of titanium dioxide and composed of various minerals. The main component is titanium dioxide, which is an important raw material for producing metallic titanium and titanium white powder, and its use is to extract metallic titanium therefrom. Metallic titanium is widely used in the military and space technology industries. The high-grade titanium white powder produced from rutile has excellent properties such as strong whitening ability, high dispersibility, and chemically inert properties, and is widely used in industries such as coatings, plastics, inks, and chemical fibers. However, at present, rutile-type titanium white powder in China basically relies on imported ore resources, and it is of great significance to study the development, recovery, and utilization of rutile resources.

[0003] The titanium dioxide content in rutile should reach at least 85%. There are various beneficiation methods for rutile, such as gravity separation, flotation, and electrostatic separation. Some ore plants also use the above combined beneficiation processes to obtain high-grade rutile concentrate products. Flotation is a separation method that relies on high-performance collectors and pollution-free flotation reagents to separate minerals. Electrostatic separation is a beneficiation method that separates according to the different surface conductivities of various minerals. Gravity separation is a method of separation according to the specific gravity of minerals, which has the advantages of low production cost and less environmental pollution. Summary of the Invention

[0004] The purpose of the invention is to solve the problems in the prior art, and a beneficiation method for extracting high-grade rutile using titanium chloride slag is proposed.

[0005] In order to achieve the above purpose, the invention adopts the following technical solutions:

[0006] A beneficiation method for extracting high-grade rutile using titanium chloride slag, comprising the following steps:

[0007] S1. Transport the titanium chloride production tailings to the silo by a loader and add a small amount of fresh water;

[0008] S2. Crushing and pulping, loosen the agglomerated bulk raw ore in the silo by a ball mill, and then stir and pulp by adding fresh water or circulating water;

[0009] S3. Classify by a hydrocyclone. After the pulp enters the hydrocyclone, by adding fresh water or circulating water, according to the specific gravity, the raw ore is finally divided into two grades: underflow and overflow;

[0010] S4. Separate the pulp by a chute, and separate the underflow and overflow in step S3 to obtain concentrate A and tail pulp A;

[0011] S5. Sort the tail pulp A through a shaking table and a suspension vibrator to obtain the concentrate B and the tail pulp B.

[0012] Among them, after the tail pulp B is concentrated in the thickener, a filter press is used to separate the tail residue and the tail water of the concentrated tail pulp B. The tail water is discharged into the production circulation pool, and the water in the production circulation pool is used for the ball mill and the chute.

[0013] S6. The above-mentioned concentrates A and B are merged and then put into the concentrate pool. The concentrate pool discharges the tail water into the sand settling pool through natural water filtration, and the water in the sand settling pool is used for the ball mill and the chute.

[0014] A beneficiation method for extracting high-grade rutile using titanium chloride slag provided by the invention also has the following technical features:

[0015] Further, in the above S2, the raw ore of the ball mill is mainly -325 mesh to prepare the pulp with a concentration of 20% - 25%.

[0016] Further, in the above S3, the titanium dioxide grade in the underflow reaches more than 80%, and the particle size is mainly -200 mesh; the titanium dioxide grade in the overflow is about 30%, and the proportion of -325 mesh is high.

[0017] Compared with the prior art, the invention provides a beneficiation method for extracting high-grade rutile using titanium chloride slag, which has the following beneficial effects:

[0018] 1. The concentrate grade of titanium dioxide in the present invention can easily meet the requirements of the fourth-grade rutile concentrate, and the final product can be dynamically adjusted according to market demand.

[0019] 2. The process of the present invention is simple, the process is continuous, the production capacity is large, the separation index is good, the operation is simple in the process, there is no environmental pollution problem, the filter cake has good molding, low moisture content, low beneficiation cost, and high economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description only relate to some embodiments of the present disclosure and do not limit the present disclosure.

[0021] Figure 1 Flow chart before chute separation of a beneficiation method for extracting high-grade rutile using titanium chloride slag.

[0022] Figure 2 Schematic diagram of the separation process of a shaking table and a suspension vibrator for a beneficiation method for extracting high-grade rutile using titanium chloride slag. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Apparently, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0024] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the ordinary meanings understood by those of ordinary skill in the art to which the present disclosure pertains. The "first", "second", and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or items appearing before this term cover the elements or items listed after this term and their equivalents, without excluding other elements or items.

[0025] As Figure 1-2 shown, a beneficiation method for extracting high-grade rutile using titanium chloride slag includes the following steps:

[0026] S1. Transport the titanium chloride production tailings to the silo by a loader and add a small amount of fresh water.

[0027] S2. Crush and make pulp. Loosen the lumpy raw ore in the silo by a ball mill, and then stir and make pulp by adding fresh water or recycled water.

[0028] Among them, in S2, the raw ore of the ball mill is mainly -325 mesh, and the pulp is prepared with a concentration of 20% - 25%.

[0029] Among them, in S3, the titanium dioxide grade in the underflow reaches more than 80%, and the particle size is mainly -200 mesh; the titanium dioxide grade in the overflow is about 30% or so, and the proportion of -325 mesh is high.

[0030]

[0031] S3. Classify by a hydrocyclone. After the pulp enters the hydrocyclone, add fresh water or recycled water, and finally the raw ore is divided into two grades: underflow and overflow according to the specific gravity.

[0032] S4. Sort the pulp by a chute, and sort the underflow and overflow in step S3 to obtain concentrate A and tailing pulp A.

[0033] Among them, the concentrate A includes concentrate A1 and concentrate A2, and the tailing B includes tailing B1 and tailing B2. Among them, after the underflow pulp is first sorted by the first chute, concentrate A1 and tailing B1 are obtained. Among them, after tailing B1 is sorted by the chute, concentrate A2 and tailing B2 are obtained.

[0034]

[0035]

[0036]

[0037] S5. Sort tailing pulp A through a shaking table and a suspension vibrator to obtain concentrate B and tailing pulp B;

[0038] Among them, after tailing pulp B is concentrated by a thickener, a filter press is used to separate the tail residue and tail water of the concentrated tailing pulp B. The tail water is discharged into the production circulation pool, and the water in the production circulation pool is used for the ball mill and the chute.

[0039] S6. The above-mentioned concentrate A and concentrate B are merged and put into the concentrate pool. The concentrate pool discharges the tail water into the sand settling pool through natural water filtration, and the water in the sand settling pool is used for the ball mill and the chute.

[0040] Among them, the raw ore is titanium chloride waste residue produced by the process of a certain chemical enterprise. The waste residue is mainly distributed in fine particle sizes, has a soft touch, strong water absorption, the moisture content of the raw ore reaches about 35-40%, is easy to form lumps, and will disintegrate when encountering water.

[0041] The purpose of the present invention: to separate the useful mineral titanium dioxide from the titanium chloride waste residue and improve the recovery rate of the waste residue.

[0042] The following points need to be explained:

[0043] 1. In the attached drawings of the embodiments of the present disclosure, only the structures related to the embodiments of the present disclosure are involved, and other structures can refer to the general design.

[0044] 2. Without conflict, the features in the same embodiment and different embodiments of the present disclosure can be combined with each other.

[0045] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A beneficiation method for extracting high-grade rutile using titanium chloride slag, characterized in that, It includes the following steps: S1. Transport the titanium chloride production tailings to the bunker by a loader and add a small amount of fresh water; S2. Crush and make pulp. Loosen the agglomerated lumpy raw ore in the bunker by a ball mill, and then stir and make pulp by adding fresh water or recycled water; S3. Classify by a hydrocyclone. After the pulp enters the hydrocyclone, add fresh water or recycled water. According to the specific gravity, the raw ore is finally divided into two grades: underflow and overflow; S4. Separate the pulp by a chute. Separate the underflow and overflow in step S3 to obtain concentrate A and tail pulp A; S5. Separate tail pulp A by a shaking table and a suspension vibrator to obtain concentrate B and tail pulp B; Among them, after tail pulp B is concentrated by a thickener, the tailings and tail water of the concentrated tail pulp B are separated by a filter press. The tail water is discharged into the production circulation pool, and the water in the production circulation pool is used for the ball mill and the chute; S6. The above-mentioned concentrate A and concentrate B are merged and put into the concentrate pool. The tail water in the concentrate pool is discharged into the sand settling pool through natural water filtration, and the water in the sand settling pool is used for the ball mill and the chute; In S2, the raw ore of the ball mill is mainly -325 mesh to prepare pulp with a concentration of 25%; In S3, the titanium dioxide grade in the underflow reaches more than 80%, and the particle size is mainly -200 mesh; the titanium dioxide grade in the overflow is 30%, and the proportion of -325 mesh is high.

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