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Lithium ore flotation method and collector composition

A composition and collector technology, applied in flotation, solid separation and other directions, can solve the problems of many collector components, complex preparation process, large amount of flotation reagents, etc., to overcome the low selectivity and molecular arrangement. The effect of tightness and increasing flotation yield

Active Publication Date: 2021-07-02
NANHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the disadvantage of this method is that the flotation yield has not been greatly improved
However, the disadvantage of this method is that the collector has many components and the preparation process is complicated.
However, the shortcoming of this flotation collector is that the composition of the collector is complex, and the amount of flotation agent is large

Method used

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  • Lithium ore flotation method and collector composition
  • Lithium ore flotation method and collector composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The lithium ore employed in this embodiment is a primestite, including Li 2 O1.48%, mainly lithium glow, mica and longite. See figure 1 As shown, the flotation method of the lithium ore includes the steps of:

[0045] S1, crushing lithium ore, grinding to particle size 0.050 ~ 0.075 mm content accounts for 80%, and water is made of water;

[0046] S2, NaOH to pH 12 was added to the slurry, and stirred and demetrifies 50 min to give lithium mine slurry at a dense mine slurry concentration of 35%;

[0047] S3, using HCl and / or NaOH to slurry the lithium mine slurry, adjusting to a pH of 8, adding the captain composition, performing a coarse selection twice a second selection of flotation processes Lithium concentrate and tailings.

[0048] Among them, the capture reagent composition is a coolant ion mixed collector composition, including anionic capture agent sulfonic acid-modified octorate and cationic capture, carboxy-modified dodecine; and each component According to the...

Embodiment 2

[0056] The lithium ore employed in this embodiment is a primestite, including Li 2 O1.08%, mainly containing lithium glow, mica and long stone. The flotation method of the lithium ore includes the following steps:

[0057] S1, crushing lithium ore, milling to particle size of 0.050 to 0.075 mm, 85%, and add water to a slurry;

[0058] S2, NaOH to pH is 12 in the slurry, and stirred and demetrifies 50 min, resulting in a lithium mine slurry having a concentration of 30% after dense.

[0059] S3, using HCl and / or NaOH to slurry the lithium ore slurry, adjusted to a pH of 10, adding the capture agent composition, and performing a quadratic selection of two selection Lithium concentrate and tailings.

[0060] Among them, the capture reagent composition is a coolant ion mixed collector composition, including anionic capture agent sulfonic acid-modified octorate and cationic capture, carboxy-modified dodecine; and each component According to the following mass percentage: sulfonic aci...

Embodiment 3-5

[0070] Unlike Example 1, the ratio of component mass fractions in the catching agent composition is different, and other steps are the same as that, and will be described later herein.

[0071] Table 1 is provided in Example 1, Example 3-5.

[0072] Example Sulfonic acid-based modified octorate Carboxy-modified octamine Example 1 60％ 40％ Example 3 70％ 30％ Example 4 50％ 50％ Example 5 40％ 60％

[0073] The collecting agent composition provided by the present invention is anhano-censoon mixed collector composition, wherein the sulfonic acid-based modified octorate is an anionic capture agent, carboxy-modified octine is a cationic capture agent, In the flotation process, the receptacle composition can synergistically, improve the floating value yield, and the synergistic mechanism is as follows: 1) The electrically conductive dieamine is by electrostatic active lithium ore surface. Adsorption occurs, and the sodium of the negative modified octorat...

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Abstract

The invention provides a lithium ore flotation method and a collector composition. In terms of mass percentage, the collector composition includes 40-70% of sulfonic acid-modified sodium octadecenoate and 30-60% of carboxy-modified dodecylamine. The flotation method of the lithium ore adopts the collector composition to carry out the flotation process, including the following steps: first crush the lithium ore, grind the ore, and add water to make a pulp; then add NaOH to the pulp for stirring Desliming pretreatment; finally, use HCl and / or NaOH to adjust the deslimed lithium ore pulp to a predetermined pH value, add the collector composition, and perform a flotation process to obtain lithium concentrate and tailings. The flotation process adopts primary roughing, secondary beneficiation, secondary sweeping, and middle ore returns in sequence. The flotation method provided by the invention adopts the anion-cation mixed collector composition, the flotation yield is high, the dosage of the collector composition is small, the process is simple, and the flotation process is stable and controllable.

Description

Technical field [0001] The present invention relates to the field of mineral processing, and more particularly to a flotation method and a catching agent composition of lithium ore. Background technique [0002] Lithium is an important strategic resource substance, widely used in emerging fields such as batteries, ceramics, glass, lubricants, refrigerants, nuclear industry and optoelectronics, is an indispensable raw material in which modern high-tech products are indispensable. In recent years, the rapid growth of lithium battery electric vehicles and lithium battery mobile electronics has caused a sharp increase in the demand of lithium, and the safety supply of lithium resources is related to the health of new energy automotive industries, energy storage and electronic information, etc.. Stable development, in many countries have increased the exploration investment of lithium mine resources. Today, the global lithium resource is mainly based on the brine deposit, but the lith...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/012B03D1/00B03D101/02B03D103/02
CPCB03D1/00B03D1/012B03D2201/02B03D2203/02
Inventor 戴兵张雷陈英贺桂成张志军章求才桂荣
Owner NANHUA UNIV
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