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Beneficiation method for pegmatite type spodumene

A beneficiation method and spodumene technology, applied in chemical instruments and methods, flotation, wet separation, etc., can solve the problems of low spodumene concentrate grade and high beneficiation cost, and improve selectivity and collection capacity. , the effect of reducing the amount of raw ore and reducing the consumption of pharmaceuticals

Active Publication Date: 2020-12-04
BLUESTAR LEHIGH ENG INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the beneficiation of pegmatite-type spodumene mainly includes dense medium separation and flotation processes. For ores with fine particle size and low grade, dense medium separation has the advantages of low beneficiation cost, simple process and little environmental pollution, but has the disadvantage of low grade of spodumene concentrate. Flotation has a wide range of process adaptability, but there are Disadvantages of high mineral processing cost

Method used

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  • Beneficiation method for pegmatite type spodumene

Examples

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Effect test

Embodiment 1

[0031] Embodiment 1, a kind of beneficiation method for pegmatite type spodumene, its steps are as follows:

[0032] (1) Crushing, screening and grading: Spodumene ore is crushed to a suitable size through crushing and screening, and then divided into coarse and fine particles through grading. , Desliming operation;

[0033] (2) Dense medium pre-selection: the coarse-grained materials after ore washing and desliming are fed into the heavy medium sorting operation, and the dense medium concentrate and heavy medium tailings are sorted out;

[0034] (3) Grinding and flotation: the fine-grained minerals and the slime produced by the desliming operation are fed into the classification operation to remove part of the fine ore slime; the dense medium coarse concentrate is separated from the underflow of the desliming operation Grinding and flotation operations are carried out to finally obtain spodumene concentrate.

[0035] In the dense medium pre-selection operation, the dense me...

Embodiment 2

[0048] Embodiment 2, a kind of beneficiation method for pegmatite type spodumene, its steps are as follows:

[0049] (1) Crushing, screening and grading: Spodumene ore is crushed to a suitable particle size through crushing and screening, and then divided into coarse and fine particle sizes through grading operations, and the grading particle size is controlled at 4mm;

[0050] (2) Heavy medium pre-selection: the coarse-grained materials of the classification operation are first sent to the cylindrical washing machine for scrubbing, and the scrubbed pulp is sent to a stage of desliming operation. The deslimed particle size is controlled at 0.75mm, and the deslimed The underflow is fed into the dense medium separation operation, and the dense medium concentrate and heavy medium tailings are separated out. The heavy medium concentrate and tailings are fed into the next process after the desliming operation, and the overflow and screening of the first stage of desliming operation ...

Embodiment 3

[0057] Embodiment 3, a kind of beneficiation method for pegmatite type spodumene, its steps are as follows:

[0058] (1) Crushing, screening and grading: Spodumene ore is crushed to a suitable particle size through crushing and screening, and then divided into coarse and fine particle sizes through grading operations, and the grading particle size is controlled at 3mm;

[0059] (2) Heavy medium pre-selection: the coarse-grained materials of the classification operation are first sent to the cylindrical washing machine for scrubbing, and the scrubbed pulp is sent to a stage of desliming operation. The deslimed particle size is controlled at 0.75mm, and the deslimed The underflow is fed into the dense medium separation operation, and the dense medium concentrate and heavy medium tailings are separated out. The heavy medium concentrate and tailings are fed into the next process after the desliming operation, and the overflow and screening of the first stage of desliming operation ...

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Abstract

The invention relates to a beneficiation method for pegmatite type spodumene, and belongs to the technical field of mineral processing. The method comprises the following steps of crushing and screening spodumene ore, classifying the spodumene ore into a coarse fraction and a fine fraction, carrying out ore washing and desliming operation on coarse fraction materials, carrying out dense medium separation operationon deslimed products, and separating out dense medium rough concentrates and dense medium tailings; carrying out medium removal on the dense medium tailings, and dehydrating the tailings; carrying out grading operation slime generated in the desliming operation on fine-fraction minerals, and removing the part of superfine slime; and carrying out ore grinding and flotation on the underflow of dense medium rough concentrates subjected to medium removal operation and desliming operation, and finally obtaining spodumene concentrates. The beneficiation method for pegmatite type spodumene has a good separation effect. With the method, minerals such as quartz and feldspar with large disseminated grain sizes can be removed by adopting a dense medium, minerals such as mica, quartzand feldspar with small disseminated particle sizes can be removed by adopting a flotation process. The method has the characteristics of low ore grinding energy consumption, low mineral processing cost, remarkable economic effect and the like.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a beneficiation method for pegmatite type spodumene. Background technique [0002] Lithium is an important new energy material, and lithium-containing power batteries are the preferred battery materials for electric vehicles. The basic sources of lithium products are mainly lithium extraction from ore and lithium extraction from brine. Due to the high ratio of magnesium to lithium or harsh natural conditions, lithium extraction from brine has not been able to reach production capacity. Lithium extraction from ores is the main method. At present, lithium extraction from ores mainly comes from pegmatite spodumene deposits, which are purified through reasonable beneficiation techniques to obtain High-grade lithium concentrate products, followed by lithium smelting and material processing. [0003] At present, the beneficiation of pegmatite-type spodumene mai...

Claims

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Application Information

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IPC IPC(8): B03B1/00B03B7/00B03D1/018B03D1/01B03D1/002B03D103/04B03D101/02
CPCB03B1/00B03B7/00B03D1/018B03D1/01B03D1/002B03D2203/04B03D2201/02
Inventor 李丰冯春晖曹效权
Owner BLUESTAR LEHIGH ENG INST CO LTD
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