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Ore dressing method for quartz-calcite type fluorite ore

A technology of calcite type and mineral processing method, which is applied in the field of mineral processing for quartz-calcite type fluorite ore, which can solve the problems of low calcite removal rate, high energy consumption, and high cost of mineral processing and achieve remarkable economic effects and low energy consumption , good purification effect

Inactive Publication Date: 2020-05-19
BLUESTAR LEHIGH ENG INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main treatment process for this type of ore is a single positive flotation process. The positive flotation process adopts multi-stage beneficiation to finally select qualified concentrates. Glue, etc. are used as inhibitors to inhibit gangue minerals. The single flotation process has disadvantages such as high mineral processing cost, high energy consumption, and low calcite removal rate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1, a kind of beneficiation method for quartz-calcite type fluorite ore, its steps are as follows:

[0033] (1) Crushing and screening: First, the fluorite ore is crushed by a crusher, and then screened to obtain fine-grained materials and coarse-grained materials;

[0034] (2) Dense medium pre-selection: Coarse-grained materials are fed into the heavy medium sorting operation, and the dense medium concentrate and heavy medium tailings are sorted out;

[0035] (3) Grinding and acid leaching: heavy medium concentrate and fine-grained materials are ground to obtain ore powder, and the ore powder is put into acid leaching operation, and fluorite concentrate is obtained through acid leaching.

[0036] The screening operation, dense medium sorting operation and acid leaching operation in this embodiment are carried out by conventional methods in the prior art.

Embodiment 2

[0037] Embodiment 2, a kind of beneficiation method for quartz-calcite type fluorite ore, its steps are as follows:

[0038] (1) Crushing and screening: First, the fluorite ore is crushed by a crusher, and then screened to obtain fine-grained materials and coarse-grained materials;

[0039] (2) Dense medium pre-selection: Coarse-grained materials are fed into the heavy medium sorting operation, and the dense medium concentrate and heavy medium tailings are sorted out;

[0040] (3) Grinding and acid leaching: heavy medium concentrate and fine-grained materials are ground to obtain ore powder, and the ore powder is put into acid leaching operation, and fluorite concentrate is obtained through acid leaching.

[0041] In the dense medium pre-selection operation, the dense medium suspension is prepared from magnetite or ferrosilicon with a grade of TFe 67.00% and water to form a 2.30g / cm 3 resuspension.

[0042] In the grinding and acid leaching operation, the acid leaching opera...

Embodiment 3

[0047] Embodiment 3, a kind of beneficiation method for quartz-calcite type fluorite ore,

[0048] In the dense medium pre-selection operation, the dense medium suspension is prepared from magnetite or ferrosilicon with a grade of TFe 67.00% and water to form a 3.20g / cm 3 The resuspension liquid, the solid-to-liquid ratio leached during one acid leaching is 1:4;

[0049] All the other are identical with embodiment 2.

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Abstract

The invention relates to an ore dressing method for quartz-calcite type fluorite ore, and belongs to the technical field of mineral processing. The ore dressing method comprises the following steps: crushing fluorite ore by a crusher, and then carrying out screening operation to obtain a fine-grained material and a coarse-grained material; feeding the coarse-grained material into dense medium sorting operation to sort out dense medium concentrates and dense medium tailings; and grinding the dense medium concentrate and the fine-grained material to obtain mineral powder, feeding the mineral powder into acid leaching operation, and performing acid leaching to obtain fluorite concentrate. According to the invention, the method has a good sorting effect on quartz-calcite type fluorite ore, wherein most of quartz and silicate minerals can be removed by adopting a dense medium in the first step, and most of carbonate minerals can be removed by adopting an acid leaching process in the secondstep, so that compared with the traditional direct direct-flotation process, the method of the invention has the characteristics of low energy consumption, low mineral separation cost, remarkable economic effect and the like.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, in particular to a beneficiation method for quartz-calcite type fluorite ore. Background technique [0002] Fluorite is a strategic mineral resource and the main raw material for producing fluorine-containing compounds. It is not only widely used in metallurgy, chemical industry, ceramics, building materials, machinery, electrical machinery, aviation, agriculture, medicine, precision instruments and other industrial sectors, but also is a Important high-energy materials for cutting-edge science and emerging industries such as atomic energy, rockets, and aerospace. At present, with the rapid development of fluorocarbons, fluoropolymers and fluorine-containing fine chemicals in the world, the international market is facing a serious shortage of fluorite fine powder. Fluorite has become a very important resource. Therefore, how to use and It is of great practical significance to protect r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F11/22B03B5/30
CPCB03B5/30C01F11/22
Inventor 李丰宋文义单连勇
Owner BLUESTAR LEHIGH ENG INST CO LTD
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