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Lithium ore flotation method and collecting agent composition

A technology of composition and collector, applied in flotation, solid separation, etc., can solve the problems of large amount of flotation agent, complicated preparation process, and many collector components, so as to improve flotation yield and flotation Improvement of productivity and improvement of recovery efficiency

Active Publication Date: 2020-04-10
NANHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 collecting agent composition
  • Lithium ore flotation method and collecting agent composition

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Experimental program
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Embodiment 1

[0044] The lithium ore that adopts in the present embodiment is pegmatite raw ore, containing Li 2 O1.48%, mainly spodumene, mica and feldspar. see figure 1 Shown, the flotation method of this lithium ore comprises the steps:

[0045] S1. Crush and grind the lithium ore until the particle size is 0.050-0.075mm and the content accounts for 80%, and add water to make a slurry;

[0046] S2. Adding NaOH to the pulp until the pH is 12, stirring and desliming for 50 minutes to obtain a lithium ore pulp with a pulp concentration of 35% after desliming;

[0047] S3. Slurry the lithium ore pulp with HCl and / or NaOH, adjust to a pH value of 8, add the collector composition, and perform a flotation process of primary roughing, secondary sweeping, and secondary beneficiation , Lithium concentrate and tailings are obtained by flotation.

[0048] Wherein, the collector composition is an anion-cation mixed collector composition, including anion collector sulfonic acid modified sodium oct...

Embodiment 2

[0056] The lithium ore that adopts in the present embodiment is pegmatite raw ore, containing Li 2 O1.08%, mainly containing spodumene, mica and feldspar. The flotation method of this lithium ore comprises the steps:

[0057] S1. Crush and grind the lithium ore until the particle size is 0.050-0.075 mm and the content accounts for 85%, and add water to make a slurry;

[0058] S2. Adding NaOH to the pulp until the pH is 12, stirring and desliming for 50 minutes to obtain a lithium ore pulp with a pulp concentration of 30% after desliming;

[0059] S3. Slurry the lithium ore pulp with HCl and / or NaOH, adjust the pH value to 10, add the collector composition, and perform a flotation process of primary roughing, secondary sweeping, and secondary beneficiation , Lithium concentrate and tailings are obtained by flotation.

[0060] Wherein, the collector composition is an anion-cation mixed collector composition, including anion collector sulfonic acid modified sodium octadecenoat...

Embodiment 3-5

[0070] The difference from Example 1 lies in that the mass fraction ratio of the components in the collector composition is different, and other steps are the same as those in Example 1, which will not be repeated here.

[0071] Table 1 is the setting of collector composition in embodiment 1, embodiment 3-5

[0072] Example Sulfonic acid modified sodium octadecenoate Carboxyl modified dodecylamine Example 1 60％ 40％ Example 3 70％ 30％ Example 4 50％ 50％ Example 5 40％ 60％

[0073] The collector composition provided by the present invention is an anion-cation mixed collector composition, wherein sulfonic acid modified sodium octadecenoate is an anionic collector, and carboxyl modified dodecylamine is a cationic collector. In the flotation process of the collector composition, the two can act synergistically to improve the flotation yield. The synergistic mechanism is as follows: 1) the positively charged modified dodecylamine interacts ...

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Abstract

The invention provides a lithium ore flotation method and a collecting agent composition. The collecting agent composition is prepared from the following components in percentage by mass: 40 to 70 percent of sulfonic group modified sodium octadecenate and 30 to 60 percent of carboxyl modified dodecylamine. The lithium ore flotation method adopts the collecting agent composition to carry out a flotation process, and comprises the following steps of: firstly, crushing and grinding the lithium ore, and adding water to prepare ore pulp, then adding NaOH into the ore pulp for stirring and deslimingpretreatment, and finally, enabling the lithium ore pulp obtained after desliming to be subjected to pulp mixing through HCl and / or NaOH, adjusting the pH value to be a preset value, adding the collecting agent composition, conducting a flotation process, and acquiring lithium concentrate and tailings through flotation. The flotation technological process adopts a primary roughing process, a secondary concentration process, a secondary scavenging process and a middling sequential return process. According to the flotation method, the anion and cation mixed collecting agent composition is adopted, the flotation yield is high, the dosage of the collecting agent composition is small, the process is simple, and the flotation process is stable and controllable.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a lithium ore flotation method and a collector composition. Background technique [0002] Lithium is an important strategic resource material, which is widely used in emerging fields such as batteries, ceramics, glass, lubricants, refrigerants, nuclear industry and optoelectronics, and is an indispensable and important raw material for modern high-tech products. In recent years, the rapid growth of lithium battery electric vehicles and lithium battery mobile electronic products has caused a sharp increase in the demand for lithium. The safe supply of lithium resources is related to the health of my country's new energy vehicle industry, energy storage, electronic information and other strategic emerging industries. Stable development, for this reason many countries have increased investment in lithium resource exploration. Today, the global lithium resources are domina...

Claims

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Application Information

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Patent Type & Authority Applications(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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