Selective flotation collector for spodumene and application thereof

A spodumene, selective technology, applied in selective deposition, solid separation, etc., can solve the problems of weak collection ability, inconvenient preparation and addition of pharmaceutical agents, and weak foaming ability.

Active Publication Date: 2013-02-13
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These collectors have their own disadvantages. For example, the amount of fatty acid collectors is relatively large. When used alone, the collection ability or foaming ability is not strong. Generally, two or more collectors are required to be mixed. In addition, this type of collector is not easy to dissolve and disperse, and it also has high requirements for the use temperature, which brings a lot of inconvenience to the preparation and addition of the agent.

Method used

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  • Selective flotation collector for spodumene and application thereof
  • Selective flotation collector for spodumene and application thereof
  • Selective flotation collector for spodumene and application thereof

Examples

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Comparison scheme
Effect test

example 1

[0014] The collector of selective flotation spodumene is made of industrial fatty acid, hydroxylamine compound and inorganic base through saponification reaction in proportions of 65%, 15% and 20% by mass respectively. Industrial fatty acid has -COOH pole The non-polar group contains 9 carbons, the hydroxylamine compound has -N-OH polar group, the non-polar group is a hydrocarbon chain, and the inorganic base is sodium carbonate, which realizes the industrial fatty acid and hydroxylamine complete saponification of the compound.

[0015] The low-grade spodumene tailings of Xinjiang Keketuohai Rare Metal Company contain 0.42%Li 2 O, add 200g / t of the collector of the present invention, use it at a pulp temperature of 10°C, and obtain the separation results in Table 1 after flotation separation.

[0016] Table 1 Spodumene flotation index 1

[0017]

Embodiment 2

[0019] The collector of selective flotation spodumene is made of industrial fatty acid, hydroxylamine compound and inorganic base through saponification reaction according to the mass ratio of 85%, 5% and 10% respectively. The industrial fatty acid has -COOH pole Sexual groups, non-polar groups contain 10 carbons, and hydroxylamine compounds have The polar group, the non-polar group are hydrocarbon chains, and the inorganic base is sodium hydroxide, which realizes the complete saponification of industrial fatty acids and hydroxylamine compounds.

[0020] A medium-grade lithium ore in a place in Jiangxi contains 0.78% Li 2 O, add 500g / t of the collector of the present invention, use it at a slurry temperature of 20°C, and obtain the separation results in Table 2 after separation by flotation.

[0021] Table 2 Spodumene flotation index 2

[0022]

Embodiment 3

[0024] The collector for selective flotation of spodumene is made of industrial fatty acid, hydroxylamine compound and inorganic base through saponification reaction in proportions of 75%, 10% and 15% by mass respectively. Industrial fatty acid has -COOH pole The non-polar group contains 20 carbons. Hydroxylamine compounds have The polar group, the non-polar group are benzene rings, and the inorganic base is sodium hydroxide, which realizes the complete saponification of industrial fatty acids and hydroxylamine compounds.

[0025] A medium-to-high-grade lithium ore in a place in Sichuan contains 1.22% Li 2 O, add 600g / t of the collector of the present invention, use it at a slurry temperature of 25°C, and obtain the separation results in Table 3 after separation by flotation.

[0026] Table 3 Spodumene flotation index 3

[0027]

[0028] The test indexes in Table 1 to Table 3 show that adopting the collector of the present invention to separate spodumene by flotation ha...

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Abstract

The invention discloses a selective flotation collector for spodumene and an application thereof. The collector is formed by performing saponification reaction on industrial fatty acid, hydroxylamine compounds and inorganic base in a mass ratio of (65-85%): (5-15%): (10-20%). The collector is suitable for being used at an ore pulp temperature of 10-25 DEG C, the dosage of the collector ranges from 100 to 600 g / t according to the change of the mineral content of spodumene in ores (or the difference of the contents of LiO2 in ores), and the collector is suitable for selectively floating and recovering spodumene from pegmatite ore. The principle that the collector plays a role of selective flotation on spodumene lies in that the oxy-oximido groups of the hydroxylamine compounds in the collector play a role of selective chelation on the active sites of aluminium, lithium and the like which are exposed on the surface of spodumene, thus enhancing the selective collection of the fatty acid components for spodumene ores. Via the saponification reaction, the water-solubility of the collector and the dispersivity of the collector in ore pulps are enhanced, so that the acting effect of the collector is improved.

Description

technical field [0001] The invention relates to a collector for selective flotation spodumene, which is suitable for selective flotation and separation of rare metal minerals. Background technique [0002] Lithium is an important high-energy new energy material, and lithium-containing power batteries are the preferred battery materials for electric vehicles. At present, the important source of lithium materials is still the spodumene deposit of pegmatite. For pegmatite lithium ore resources, enrichment through low-cost, low-energy consumption and low-pollution beneficiation technology to obtain high-grade lithium concentrate products, and then lithium smelting and material processing, is currently a commonly used technology at home and abroad route. [0003] At present, the beneficiation of pegmatite-type spodumene mainly includes dense medium separation (high grade, coarse embedded particle size) and flotation (low grade, fine embedded particle size). The flotation of sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D3/00
Inventor 王毓华胡岳华于福顺谢贞付陈兴华王进明余世磊余胜利
Owner CENT SOUTH UNIV
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