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Reagent composition for flotation of lepidolite and preparation method and application of reagent composition

A technology of lepidolite and composition, which is applied in flotation, solid separation and other directions, can solve the problems of complex process flow, loss of lepidolite metal, increased loss of lepidolite, etc., and achieves simple process flow and high recovery rate Effect

Active Publication Date: 2020-06-19
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, too long grinding time will cause the ore to be easily muddy, which will make the separation effect of iron lepidolite worse, and the industry has to increase the desliming operation to remove the fine mud in advance, which not only increases the cost, but also increases the cost. Increased the loss of iron lepidolite during the sorting process
[0004] At present, the method of pre-desliming is adopted for the flotation and utilization of iron lepidolite containing mud in China. This method has a complicated process and will lead to the loss of part of the iron lepidolite metal. Therefore, a medicament for flotation of iron lepidolite without desliming is invented. The system is an important part of realizing efficient recycling of lithium resources and ensuring sustainable development

Method used

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  • Reagent composition for flotation of lepidolite and preparation method and application of reagent composition

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Embodiment 1

[0050] A medicament composition for flotation of iron lepidolite of the present invention, comprises coarse grinding composition and adjustment composition, and wherein coarse grinding composition comprises:: sodium hexametaphosphate, sodium tartrate and neutral 2# (collecting agent), its mass ratio is 40::20::40. The adjustment composition includes sodium hexametaphosphate and oxalic acid, and the mass ratio thereof is 60:40.

[0051] The preparation method of the coarse grinding composition of the present embodiment is:

[0052] (1) Sodium hexametaphosphate is formulated into an aqueous solution of sodium hexametaphosphate with a mass fraction of 10%, sodium tartrate is formulated with an aqueous solution of sodium tartrate with a mass fraction of 10%, and neutral 2# is formulated with a mass fraction of 10%. Neutral 2# aqueous solution.

[0053] (2) The sodium hexametaphosphate aqueous solution, the sodium tartrate aqueous solution and the neutral 2# aqueous solution are ...

Embodiment 2

[0058] A method for flotation iron lepidolite without desliming, its technical process see figure 1 , including the following steps:

[0059] (1) Coarse grinding: choose an iron lepidolite mine in Yichun, Jiangxi. The gangue mainly includes quartz, feldspar and calcite, etc. The raw ore 2 The O grade is 0.7-0.8%, and the desliming amount before on-site flotation is 8-10%. Add 1500 g / t of the rough grinding composition of Example 1 to the above-mentioned raw ore that has not been deslimed, and use ceramic balls as the grinding medium for grinding for 3 minutes to obtain rough ground pulp with a -100 mesh content of more than 80%. , -200 mesh content is about 55%.

[0060] (2) The first rough selection:

[0061] 2.1 Add the coarse ground pulp to the mechanical agitation flotation machine, adjust the pulp concentration to about 35% pulp, and the pH of the pulp is 8.45, and fully stir;

[0062] 2.2 After fully stirring (stirring time is generally 1 to 3 minutes), start inflati...

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Abstract

The invention discloses a reagent composition for flotation of lepidolite and a preparation method and application of the reagent composition. The reagent composition comprises a coarse grinding composition and an adjusting composition, wherein the rough grinding composition is prepared from 40 to 30 parts by weight of sodium hexametaphosphate, 20 to 10 parts by weight of sodium tartrate and 40 to60 parts by weight of collecting agent; the adjusting composition comprises the following components in parts by weight: 40-60 parts of sodium hexametaphosphate and 60-40 parts of oxalic acid. The preparation method comprises a preparation method of the coarse grinding composition and a preparation method of the adjusting composition. The reagent system is applied to the non-desliming flotation method for the iron-lithium mica; the coarse grinding composition is added in the coarse grinding stage to enable the mud-containing iron lepidolite and the medicament to fully act, the purposes of thoroughly dispersing an ore pulp solution and enabling the surface of the iron lepidolite to be hydrophobic are achieved. The adjusting composition is added in the concentration stage to achieve the purposes of dispersing ore pulp and inhibiting gangue minerals, and the method has the advantages of no need of desliming, high recovery rate, low medicament consumption and the like.

Description

technical field [0001] The invention relates to the field of mineral processing, in particular to a pharmaceutical composition for flotation of iron lepidolite, a preparation method and application thereof. . Background technique [0002] Iron lepidolite is one of the main industrial minerals from which lithium is extracted. Lithium and its compounds have a variety of industrial applications, including heat-resistant glass, ceramics, lithium grease lubricants, flux additives for iron, steel and aluminum production, lithium Batteries and lithium-ion batteries. These uses consume more than three-quarters of lithium production. Lithium is present in trace amounts in biological systems, but its function is unknown. Lithium salts are known to be used as mood stabilizing drugs for the treatment of bipolar disorder in humans. my country's lithium resources are relatively rich, but the grade is relatively low, the embedded particle size is fine, it is easy to muddy, and the util...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/002B03B9/00B03D101/06
CPCB03B9/00B03D1/00B03D1/002B03D2201/005B03D2201/06
Inventor 欧乐明周浩张政军
Owner CENT SOUTH UNIV