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Spodumene ore flotation method

A technology of spodumene ore and spodumene, applied in flotation, solid separation, etc., can solve the problems of difficult wastewater treatment and recycling, poor sedimentation dehydration performance, etc., to increase the difference in hydrophobicity and floatability, reduce Surface repulsion, the effect of reducing the number of negative charges on the surface

Active Publication Date: 2022-03-29
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a spodumene ore flotation method in order to overcome the problems of poor settling dehydration performance of flotation concentrate and tailings slurry and difficulties in wastewater treatment and recycling in the prior art, which can reduce the flotation rate. Reduce the cost of the selection agent, improve the dehydration performance of spodumene flotation tailings and concentrate products, and realize the recycling of spodumene ore beneficiation wastewater

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specific Embodiment approach

[0047] According to a kind of preferred embodiment of the present invention, spodumene ore flotation method comprises the following steps:

[0048] (1) After the spodumene raw ore is crushed, the ore particles with a particle size less than or equal to 3 mm are screened out as mineral materials;

[0049] (2) Grinding the mineral material after mixing it with water, grinding the mineral material to a fineness of -0.074mm, accounting for 70-80wt%, and then mixing with water so that the mass fraction of the mineral material is 20-30% to obtain a pulp I;

[0050] (3) After the ore slurry I was settled for 1-3min, after removing the upper suspension, it was mixed with water so that the mass fraction of the mineral material in the slurry was 20-30%, and then mixed with a regulator to adjust Slurry II is obtained as slurry, and the slurry is mixed with a collector for stirring and pulping III to obtain pulp II. The regulator contains lignosulfonate, and the collector contains oleic ...

Embodiment 1

[0060] (1) Put the spodumene raw ore into the crusher for crushing, and screen the ore particles with a particle size less than or equal to 3mm as the mineral material;

[0061] (2) get 350g of mineral material that step (1) obtains and put into ball mill, add 350mL water, be ground to mineral material fineness-0.074mm by ball mill and account for 75wt%, then mix with water so that the massfraction of described mineral material is 25%, obtain pulp I;

[0062] (3) the ore slurry 1 that step (2) is obtained is stirred 2min in the flotation cell, then stops stirring, and after settling 2min, removes the supernatant suspension through extracting, and the ore slime that removes accounts for about 15wt% of ore material, and then with Mix with water to obtain a slurry with a mass fraction of mineral material of 25%, add 0.22g sodium lignosulfonate, adjust the linear speed of the stirring impeller of the flotation machine to 6.5m / s, stir for 8min to obtain a slurry, and then add 0.3g...

Embodiment 2

[0065] (1) Put the spodumene raw ore into the crusher for crushing, and screen the ore particles with a particle size less than or equal to 3mm as the mineral material;

[0066] (2) get 350g of mineral material that step (1) obtains and put into ball mill, add 350mL water, be ground to mineral material fineness-0.074mm by ball mill and account for 75wt%, then mix with water so that the massfraction of described mineral material is 25%, obtain pulp I;

[0067] (3) the ore slurry 1 that step (2) is obtained is stirred 2min in the flotation cell, then stops stirring, and after settling 2min, removes the supernatant suspension through extracting, and the ore slime that removes accounts for about 15wt% of ore material, and then with Mix with water to obtain a slurry with a mass fraction of mineral material of 25%, add 0.22g sodium lignosulfonate, adjust the linear speed of the stirring impeller of the flotation machine to 6.5m / s, stir for 8min to obtain a slurry, and then add 0.3g...

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Abstract

The invention relates to mineral flotation technology, and discloses a spodumene ore flotation method. The flotation method provided by the present invention comprises the following steps: (1) mixing the ore material with water and then grinding to obtain the pulp I; (2) mixing the pulp I with the collecting composition and stirring the slurry I to obtain the pulp II; 3) Under the condition that pH is 7-9, carry out flotation to described ore pulp II to obtain spodumene concentrate and tailings product; Wherein, described collection composition contains collector, and described collector contains Oleic Acid and Laurylamine. The flotation method of the present invention can not only obtain the flotation index similar to the conventional flotation process, but also reduce the cost of flotation reagents, greatly reduce the pH of the spodumene flotation concentrate and tailings slurry, and significantly increase the pH of the flotation tailings slurry. And the dehydration performance of concentrate products is beneficial to the disposal and recycling of spodumene mine beneficiation wastewater.

Description

technical field [0001] The invention relates to mineral flotation technology, in particular to a spodumene ore flotation method. Background technique [0002] my country's spodumene mineral resources have the characteristics of low lithium metal content, fine intercalation particle size, and complex mineral composition. At present, pegmatite-type spodumene ore resources are the main source of lithium extraction in my country. The useful mineral in spodumene ore is spodumene, and it and the main gangue minerals feldspar, mica and quartz in spodumene ore are all silicate minerals. The solid-liquid interface residual value of such minerals The similar bond characteristics lead to very similar physical and chemical properties on the surface of such minerals, making it difficult to achieve efficient flotation separation. [0003] In order to improve the separation efficiency of spodumene ore flotation, in the traditional spodumene ore flotation process, sodium carbonate, sodium ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/01B03B1/00B03D1/002B03D101/02B03D103/02B03D101/00
CPCB03D1/01B03B1/00B03D1/002B03D2201/02B03D2203/02B03D2201/007
Inventor 王毓华卢东方郑霞裕褚浩然孙宁冯海强
Owner CENT SOUTH UNIV
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