Ore dressing method of spodumene quarry

A beneficiation method and technology for spodumene ore, which can be applied in flotation, solid separation and other directions, can solve the problems of difficult separation, low concentrate grade and recovery rate, and difficulty in flotation recovery due to flotation, and achieve economical beneficiation. The effect of the consumption of chemicals and power, ensuring the quality and grade of concentrate, and reducing the circulation of medium ore

Active Publication Date: 2013-02-06
JIANGXI UNIV OF SCI & TECH
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Problems solved by technology

[0002] my country is rich in spodumene mineral resources, ranking fourth in the world. However, at present, the utilization efficiency of spodumene resources in my country is not high. The utilization of spodumene resources with uneven and complex properties is not ideal. Often due to the finer particle size of spodumene, various types of gangue minerals, severe mudification, and complex properties, it is difficult to recover spodumene by flotation. It is difficult to obtain spodumene concentrate with high grade and recovery rate
For these complex and low-grade fine-grained spodumene mineral resources, most mines either have not been effectively developed due to the difficulty of sorting, or because of the complex nature of the ore, only part of the spodumene concentrate has been sorted out, but the concentrate grade Both the recovery rate and the recovery rate are low, and the impurity content is high
[0003] The traditional spodumene flotation process mostly uses fatty acids as collectors to directly float spodumene minerals. Although this process can float most of the spodumene minerals that are easy to float, but when the coarse concentrate is used for spodumene Due to the complex properties of gangue minerals, spodumene and gangue minerals are cl

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  • Ore dressing method of spodumene quarry

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Embodiment 1

[0032] Selected raw ore containing Li 2 O 0.73%, the main minerals are spodumene, saspodumene, beryl, muscovite, sericite, quartz, feldspar, fluorite, tourmaline, kaolinite, calcite, etc., the characteristics of lithium mineral intercalation in the ore Complicated, uneven particle size, and mainly fine particles, poor monomer dissociation. Spodumene concentrate obtained by traditional spodumene flotation process contains Li 2 O 4.53%, recovery rate 62.37%.

[0033] The complex and refractory low-grade spodumene ore is sorted by adopting the new spodumene flotation process of the present invention, and the sorting steps are:

[0034] (1) Grinding the raw ore, the grinding fineness -0.074mm content is 78%;

[0035] (2) The finely ground pulp is subjected to rough separation of slime to obtain the slime product and tailings I. The process conditions of the flotation process are: add 800g / t of sodium carbonate and 600g / t of sodium hydroxide, and the action time is 10min. Add 1...

Embodiment 2

[0044] Selected raw ore containing Li 2 O 1.12%, the main minerals are spodumene, quartz, feldspar, beryl, sericite, fluorite, muscovite, kaolinite, topaz, tourmaline, calcite, etc. The intercalation characteristics of lithium minerals in the ore are complex, intercalation The particle size of the cloth is extremely dispersed, and mainly fine particles, and the dissociation of monomers is poor. Spodumene concentrate obtained by traditional spodumene flotation process contains Li 2 O 5.11%, recovery rate 66.12%.

[0045] The complex and refractory low-grade spodumene ore is sorted by adopting the new spodumene flotation process of the present invention, and the sorting steps are:

[0046] (1) Grinding the raw ore, the grinding fineness -0.074mm content is 76%;

[0047] (2) The finely ground pulp is subjected to rough separation of slime to obtain slime products and tailings I. The process conditions of the flotation process are: adding 750g / t of sodium carbonate and 610g / t o...

Embodiment 3

[0056] Selected raw ore containing Li 2 O 0.86%, the main minerals are spodumene, sas-spodumene, muscovite, beryl, sericite, quartz, calcite, feldspar, fluorite, tourmaline, kaolinite, etc. The characteristics of lithium mineral intercalation in the ore Complicated, with scattered and uneven intercalation particle size, mainly fine particles, and poor monomer dissociation. Spodumene concentrate obtained by traditional spodumene flotation process contains Li 2 O 4.88%, recovery rate 63.37%.

[0057] The complex and refractory low-grade spodumene ore is sorted by adopting the new spodumene flotation process of the present invention, and the sorting steps are:

[0058] (1) Grinding the raw ore, the grinding fineness -0.074mm content is 78%;

[0059] (2) The finely ground pulp is subjected to rough separation of slime to obtain the slime product and tailings I. The process conditions of the flotation process are: add 800g / t of sodium carbonate and 600g / t of sodium hydroxide, an...

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Abstract

The invention discloses an ore dressing method of a spodumene quarry, which comprises the following steps: raw ore grinding, slime floating, spodumene fast roughing, spodumene fast selecting, spodumene slow roughing, spodumene slow selecting and other steps, and a spodumene concentrate is finally obtained. The spodumene quarry separated by adopting the ore dressing method has good separation index, and the grade and the recovery rate of the spodumene concentrate are high. The ore dressing method is a new spodumene flotation process with the advantages of economy, applicability, simplicity, cleanness, strong controllability and good separation effect and is suitable for popularization and application.

Description

technical field [0001] The invention relates to a spodumene ore beneficiation method, in particular to a flow structure of spodumene flotation. Background technique [0002] my country is rich in spodumene mineral resources, ranking fourth in the world. However, at present, the utilization efficiency of spodumene resources in my country is not high. The utilization of spodumene resources with uneven and complex properties is not ideal. Often due to the finer particle size of spodumene, various types of gangue minerals, severe mudification, and complex properties, it is difficult to recover spodumene by flotation. It is difficult to obtain spodumene concentrate with high grade and recovery rate. For these complex and low-grade fine-grained spodumene mineral resources, most mines either have not been effectively developed due to the difficulty of sorting, or because of the complex nature of the ore, only part of the spodumene concentrate has been sorted out, but the concentrate...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03B1/00
Inventor 罗仙平周贺鹏严群闫伟吕玲芝王虎李享文
Owner JIANGXI UNIV OF SCI & TECH
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