Method for improving grade of fluorite concentrate

A technology of fluorite ore and fluorite, which is applied in the field of improving the grade of fluorite concentrate, can solve the problems of low recovery rate, excessive impurities of fluorite concentrate, and low grade of fluorite concentrate, so as to improve the grade and reduce the content of impurities , Eliminate the effect of large circulation volume of medium ore

Inactive Publication Date: 2020-02-04
西安矿源有色冶金研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the grade of high-calcium fluorite ore is difficult to improve
[0004] For high-calcium fluorite ore (such as calcium carbonate-fluorite ore), the existing technology generally adopts the separation method of pumice fluorite to suppress calcite. Since the surface physical and chemical properties of fluorite ore and

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  • Method for improving grade of fluorite concentrate

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Embodiment 1

[0032] See figure 1 , figure 1 It is a schematic flowchart of a method for improving the grade of fluorite concentrate provided by the embodiment of the present invention. The embodiment of the present invention provides a method for improving the grade of fluorite concentrate, the method for improving the grade of fluorite concentrate includes:

[0033] Step 1.1, adding a regulator to the ground fluorite ore to obtain the first fluorite slurry;

[0034] Step 1.2, sequentially adding inhibitors, activators and collectors to the first fluorite pulp to obtain the second fluorite pulp and the first tailings;

[0035] Step 1.3, performing grinding treatment on the second fluorite pulp to obtain the third fluorite pulp;

[0036] Step 1.4, adding inhibitor, activator and collector to the third fluorite pulp to obtain the fourth fluorite pulp and the second tailings;

[0037] Step 1.5, adding an inhibitor to the fourth fluorite slurry to obtain fluorite concentrate.

[0038] Flu...

Embodiment 2

[0054] In order to better illustrate the method for improving the grade of fluorite concentrate provided by the embodiment of the present invention, this embodiment will be described by taking a specific beneficiation method as an example on the basis of the above embodiments.

[0055] This embodiment adopts a high-calcium type fluorite mine in a certain place in Ningxia, and the CaF in the raw ore 2 The content is 39.31%, CaCO in raw ore 3 The content of the ore is 20.93%, and the process mineralogy research shows that the ore contains CaCO 3 The minerals are mainly calcite, containing CaF 2 The most common mineral is fluorite, which is a typical high-calcium fluorite ore. This embodiment mainly carries out mineral processing to the high-calcium type fluorite ore in a certain place in Ningxia, and its specific process is as follows:

[0056] Step 2.1, the raw ore is ground with a wet ball mill, so that the amount of fluorite ore after grinding with a particle size of -0.07...

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Abstract

The invention discloses a method for improving the grade of fluorite concentrate. The method comprises: adding an adjusting agent into a fluorite ore after ore grinding to obtain a first fluorite oreslurry; adding an inhibitor, an activator and a collector into the first fluorite ore slurry to obtain a second fluorite ore slurry and a first tailings; performing ore grinding treatment on the second fluorite ore slurry to obtain a third fluorite ore slurry; adding an inhibitor, an activator and a collector into the third fluorite ore slurry to obtain a fourth fluorite ore slurry and a second tailings; and adding an inhibitor into the fourth fluorite ore slurry to obtain the fluorite concentrate. In the method provided by the invention, a pH value of the ore slurry is adjusted through the adjusting agent, then the fluorite ore is subjected to concentration and scavenging for several times through addition of the inhibitors, the activators and the collectors, and then the grade of the fluorite concentrate is improved, an impurity content of the fluorite ore is reduced, and at the same time, the problems of large middling circulation amount, low separation efficiency, and unstable flotation in the production can be eliminated.

Description

technical field [0001] The invention belongs to the technical field of minerals, and in particular relates to a method for improving the grade of fluorite concentrate. Background technique [0002] With the development of the economy, as an important strategic resource, the development and utilization of fluorite has a very broad prospect. On the other hand, there is a huge gap between the supply and demand of fluorite resources in my country. Moreover, the outcrops, shallow mines and known mines that are easy to find are decreasing day by day, so the difficulty of finding mines is increasing. [0003] At present, fluorine-containing fluorite ore is the only raw material for the production of hydrofluoric acid, and it is also the basic raw material for steel, aluminum, glass and other industries. There are three main types of fluorite mines in nature, namely quartz-fluorite type, quartz-fluorite-barite type, quartz-fluorite-calcite type (or quartz-fluorite-carbonate type). ...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/002B03D1/008B03D1/006B03D1/018B03D101/02B03D101/06B03D103/04
CPCB03D1/00B03D1/002B03D1/006B03D1/008B03D1/018B03D2201/007B03D2201/02B03D2201/06B03D2203/04
Inventor 苏晓兰王潇祝景龙李浩徐花婷
Owner 西安矿源有色冶金研究院有限公司
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