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Spodumene floatation method

A spodumene and spodumene concentrate technology, applied in flotation, solid separation, etc., can solve the problems of poor selectivity in the flotation process, low spodumene grade, low flotation efficiency, etc., to increase the difference and Floatability difference, improved grade, high beneficiation index effect

Inactive Publication Date: 2019-10-25
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems of low flotation efficiency, low spodumene grade and poor selectivity of the flotation process and high cost when activators are added in the spodumene flotation process existing in the prior art, Provide a kind of spodumene flotation method, this flotation method can effectively improve the flotation efficiency of spodumene under the situation of not adding activator, also can improve the spodumene Li that floats out simultaneously. 2 O grade; and can effectively simplify the process and reduce flotation costs

Method used

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Examples

Experimental program
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Embodiment 1

[0041] The mineral composition in the raw ore selected by the present embodiment is as shown in Table 1, and the chemical composition in the raw ore is as shown in Table 2:

[0042] Table 1: Mineral Composition of Methyl Carbine Spodumene Samples in Sichuan

[0043]

[0044] Table 2: Analysis of the chemical components in Sichuan methyl carbospodumene ore samples

[0045]

[0046] (1) Put the raw ore into the crusher for crushing, screen the ore particles with a particle size of -3mm as mineral material, and put them in bags for later use.

[0047] (2) Put 500g of the above-mentioned mineral material into a ball mill, add 0.25g of NaOH and 500mL of water, and grind for 10 minutes by a ball mill to obtain a slurry I with a particle size of the grinding product -0.074mm and accounting for 75%.

[0048] (3) Pour the above pulp I into a stirrer and add 0.25g of NaOH, then set the stirring rate to 3000rpm and stir for 30min.

[0049] (4) the stirred product that step (3) is...

Embodiment 2

[0057] Li in the raw ore selected in this embodiment 2 The O content was 1.53%.

[0058] (1) Put the raw ore into the crusher for crushing, screen the ore particles with a particle size of -3mm as mineral material, and put them in bags for later use.

[0059] (2) Put 500g of the above-mentioned mineral material into a ball mill, add 0.25g of NaOH and 333mL of water, and grind for 12min by a ball mill to obtain a slurry I with a particle size of the grinding product -0.074mm and accounting for 75%.

[0060] (3) Pour the above pulp I into a stirrer and add 0.25g of NaOH, then set the stirring rate to 3000rpm and stir for 15min.

[0061] (4) filter the stirred product that step (3) obtains, then the filtrate obtained by filtration is preserved for the step (2) in the flotation process next time, and in the solid product obtained by filtration, add 1063mL water to make its mass fraction was 32%.

[0062] (5) roughing: the ore slurry that step (4) obtains is poured into flotatio...

Embodiment 3

[0069] Li in the raw ore selected in this embodiment 2 The O content was 1.42%.

[0070] (1) Put the raw ore into the crusher for crushing, screen the ore particles with a particle size of -3mm as mineral material, and put them in bags for later use.

[0071] (2) Take 500g of the above-mentioned ore material and put it into a ball mill, add 0.4g of soluble alkali (the mass ratio of NaOH and KOH is 1:1) and 400mL of water, and grind it through a ball mill for 10min to obtain a grinding product with a particle size of -0.074mm 80% pulp I.

[0072] (3) Pour the above pulp I into a stirrer and add 0.3g of soluble alkali (the mass ratio of NaOH and KOH is 1:1), then set the stirring rate to 3000rpm and stir for 20min.

[0073] (4) filter the stirred product that step (3) obtains, then the filtrate obtained by filtration is preserved for the step (2) in the flotation process next time, and 1167mL water is added in the solid product obtained by filtration to make its mass fraction ...

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Abstract

The invention relates to the technical field of ore milling, and discloses a spodumene floatation method. The spodumene floatation method comprises the following steps that (1) raw ores are screened after being crushed to obtain an ore material; (2) the ore material, soluble alkali and water are mixed and ground to obtain ore plup I; (3) the ore plup I and the water are mixed and diluted to obtainore plup II; and (4) floatation is carried out after the ore plup II and a collecting agent are mixed to obtain a spodumene concentrate and gangue product. The spodumene floatation method can effectively improve the floatation efficiency of the spodumene under the condition of not adding an activator, and meanwhile, floated spodumene Li2O grade can be further improved; and the technological process can be effectively simplified and the floatation cost can be reduced.

Description

technical field [0001] The invention relates to the technical field of ore processing, in particular to a spodumene flotation method. Background technique [0002] Lithium is a scarce and clean resource. my country's pegmatite deposits and salt lake brine are important sources of lithium resources in my country. However, lithium extraction from salt lakes has not yet been realized on a large scale due to problems such as poor technical versatility, high magnesium-to-lithium ratio, and high cost. Industrialization, pegmatite-type spodumene resources are still an important source of lithium extraction in my country for a long time to come. [0003] my country's spodumene mineral resource reserves are abundant, but due to factors such as low lithium metal content in spodumene ore, fine particle size of spodumene ore intercalation, complex mineral composition and other factors, as well as insufficient research work on related basic theory of separation, lithium The resource utili...

Claims

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Application Information

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IPC IPC(8): B03D1/02B03B1/00B03B1/04B03D101/02B03D103/04
CPCB03B1/00B03B1/04B03D1/025B03D2201/02B03D2203/04
Inventor 王毓华卢东方郑霞裕孙宁褚浩然高丹校
Owner CENT SOUTH UNIV
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