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Method for producing concentrate by purifying non-weakly magnetic tailings and prepared concentrate

A weak magnetic, concentrate technology, used in solid separation, flotation and other directions, can solve the problems of low concentrate purity and low recovery rate, and achieve the effect of high purity and high recovery rate

Pending Publication Date: 2022-03-04
深圳市考拉生态科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Non-weakly magnetic tailings contain (calcite, dolomite) minerals, and there are still a small number of fine-grained minerals in (calcite, dolomite) minerals that have no monomer dissociation between (fluorite, mica, quartz) minerals, and are still Connected body, the non-weakly magnetic tailings are fine-grained, and most of the minerals in the tailings (dolomite, calcite, mica, fluorite, quartz) are connected with no monomer dissociation. The purity of the (muscovite, quartz, fluorite) concentrate obtained after flotation by the mineral processing method is not high and the recovery rate is low

Method used

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  • Method for producing concentrate by purifying non-weakly magnetic tailings and prepared concentrate
  • Method for producing concentrate by purifying non-weakly magnetic tailings and prepared concentrate
  • Method for producing concentrate by purifying non-weakly magnetic tailings and prepared concentrate

Examples

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Effect test

preparation example

[0056] The preparation of boric acid leaching solution is as follows:

[0057] Heat the hydrochloric acid solution with a concentration of 4mol / L to 50°C, then add boric acid solid under stirring, hydrochloric acid:boric acid solid=100:10 (volume to mass ratio), after the dissolution is complete, boric acid leach solution can be obtained, boric acid The mass concentration of boric acid in the leaching solution is 10%.

[0058] In the actual flotation process, the required amount of boric acid leachate can be configured according to the preparation of the boric acid leachate.

Embodiment 1

[0065] Mix 100kg of non-weak magnetic minerals crushed and ground to a particle size of -0.074mm with 1mol / L hydrochloric acid solution, the mass volume ratio of non-weak magnetic minerals to hydrochloric acid is 1:1.5 (at this time, the pH of the leaching solution is about 1 ), stirred for 10 minutes; at this time hydrochloric acid and calcite (CaCO 3 ), dolomite (MgCO 3 ) undergoes a chemical reaction to form calcium chloride and magnesium chloride that are easily soluble in water and enter the acid leaching solution Ⅰ. Fluorite is slightly soluble in hydrochloric acid, while quartz and mica are insoluble in hydrochloric acid and exist in the acid leaching solution Ⅰ in solid form. After solid-liquid separation, the filter residue is obtained Ⅰ (filter residue Ⅰ contains mixed minerals of fluorite, quartz, and mica) and filtrate Ⅰ (filtrate Ⅰ is acid leaching solution Ⅰ, which contains calcium and chloride ions), and rinse filter residue Ⅰ with water until the pH value of th...

Embodiment 2-4

[0075] The difference between embodiment 2-4 and embodiment 1 is only that, in embodiment 2-4, the concentration of hydrochloric acid solution is different, all the other are identical with embodiment 1. The details are shown in Table 2 below.

[0076] Table 2

[0077] Example Hydrochloric acid concentration mol / L Example 2 0.8 Example 3 1.5 Example 4 3.0

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Abstract

The invention relates to the technical field of tailing purification, and particularly discloses a method for producing concentrate by purifying non-weakly magnetic tailings and the prepared concentrate. The method comprises the following steps: S1, acid leaching I; s2, flotation I is conducted; s3, flotation II is conducted; and S4, acid leaching II. The concentrate is prepared through purification by the method, and the prepared concentrate comprises fluorite concentrate, mica concentrate and quartz concentrate. The fluorite concentrate, the mica concentrate and the quartz concentrate which are high in purity and recovery rate can be prepared through the preparation method.

Description

[0001] The priority basis of the present invention includes: the application date of September 30, 2021, the application number 2021111612834, and the invention application with the patent name "a preparation method and equipment for purifying quartz from secondary tungsten tailings". technical field [0002] The application relates to the technical field of tailings purification, more specifically, it relates to a method for purifying non-weak magnetic tailings to produce concentrate and the obtained concentrate. Background technique [0003] Non-weakly magnetic tailings are non-weakly magnetic minerals obtained after the secondary tungsten tailings enter the strong magnetic separation production process to remove weakly magnetic minerals. Non-weakly magnetic tailings contain (calcite, dolomite) minerals, and there are still a small number of fine-grained minerals in (calcite, dolomite) minerals that have no monomer dissociation between (fluorite, mica, quartz) minerals, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03D1/01B03D101/02B03D103/02
CPCB03D1/00B03D1/01B03D2201/02Y02W30/52
Inventor 邵宗强蓝云燕吴峰李祖君
Owner 深圳市考拉生态科技有限公司