Spodumene ore beneficiation sorting process

A technology of spodumene ore and spodumene, which is applied in flotation, solid separation, wet separation, etc., can solve the problems of high mud content, deterioration of ore floatability, and mud pollution of beneficiation environment, etc. The effect of impurity content

Active Publication Date: 2019-01-11
CINF ENG CO LTD
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AI Technical Summary

Problems solved by technology

[0004] Spodumene ore generally has a high mud content, which pollutes the beneficiation environment and deteriorates the buoyancy of the ore, and some dissolved salt ions in the ore slime can not only activate spodumene, but als

Method used

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  • Spodumene ore beneficiation sorting process

Examples

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Embodiment 1

[0032] Taking spodumene from a certain place in Hunan as an example, the original ore contains Li 2 O is 1.2%, adopts technological process of the present invention, as figure 1 As shown, the specific steps are as follows:

[0033] (1) Using the SAB crushing process, the raw ore is ground to a fineness of -200 mesh, accounting for 75%;

[0034] (2) Use the CCF flotation column to carry out pre-flotation on the grinding product. The dosage of the agent used is: sodium carbonate 800g / t, water glass 150g / t, naphthenic acid soap 100g / t. After sliming, the desliming rate reaches 95%, and the pre-flotation coarse ore is obtained;

[0035] (3) The pre-flotation coarse ore is used for flotation operation, adopting a rough three-sweeping three-sweeping process, and the pharmaceutical system for the roughing operation is: sodium carbonate 200g / t, sodium hydroxide 400g / t, oxidized paraffin wax soap, sulfur Chemical soap and naphthenic acid soap are formulated into mixed collectors acc...

Embodiment 2

[0039] Taking spodumene in a certain place in Jiangxi as an example, the original ore contains Li 2 O is 1.35%, adopts technological process of the present invention, and concrete steps are as follows:

[0040] (1) Using the SAB crushing process, the raw ore is ground to a fineness of -200 mesh, accounting for 78%;

[0041] (2) Use the CCF flotation column to pre-float the grinding product. The dosage of the agent used is: sodium carbonate 600g / t, water glass 120g / t, naphthenic acid soap 85g / t, and the CCF flotation column removes After sliming, the desliming rate reaches 90%, and the pre-flotation coarse ore is obtained;

[0042] (3) The pre-flotation coarse ore is used for flotation operation, using a rough three-sweeping three-sweeping process, and the pharmaceutical system for the roughing operation is: sodium carbonate 205g / t, sodium hydroxide 450g / t, oxidized paraffin wax soap, sulfur Chemical soap and naphthenic acid soap are formulated into mixed collectors according...

Embodiment 3

[0046] Taking spodumene in a certain place in Sichuan as an example, the original ore contains Li 2 O is 1.40%, adopts technological process of the present invention, and concrete steps are as follows:

[0047] (1) Using the SAB crushing process, the raw ore is ground to a fineness of -200 mesh, accounting for 72%;

[0048] (2) Use the CCF flotation column to carry out pre-flotation of the grinding product. The dosage of the agent used is: sodium carbonate 200g / t, water glass 120g / t, naphthenic acid soap 95g / t, and the product is removed by the CCF flotation column. After sliming, the desliming rate reaches 90%, and the pre-flotation coarse ore is obtained;

[0049] (3) The pre-flotation coarse ore is used for flotation operation, adopting a rough three-sweeping three-sweeping process, and the pharmaceutical system for the roughing operation is: sodium carbonate 340g / t, sodium hydroxide 540g / t, oxidized paraffin wax soap, sulfur Soap and naphthenic acid soap are formulated i...

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Abstract

The invention discloses a spodumene ore beneficiation sorting process, and belongs to the technical field of multi-metal beneficiation. The spodumene ore beneficiation sorting process comprises the following steps: (1) a SAB crushing flow is adopted to grind raw ores; (2) a CCF flotation column is used for preflotation of ore grinding products to obtain preflotation raw ores; (3) the flotation isperformed on the preflotation raw ores; a flow of one-roughening, three-refining and three-scavenging is adopted; and oxidized paraffin soap, sulfonated soap and naphthenic acid soap are used in mixedcollecting agents in the roughening operation; (4) the solid-liquid separation is performed on flotation tailings; and (5) impurities of spodumene after flotation are removed; and lithium concentrates are obtained by adopting a process of cell slag screening-magnetic separation-acid impurity removal. Through the process of SAB crushing flow+preflotation by the CCF flotation column+spodumene slofation+impurity removal of the concentrates, when the selecting grade of the raw ores is 1.0-1.5%, the recovery rate of the spodumene concentrates is 80-85%; the grade is 5.5-6.0%; and the content of iron trioxide in the concentrates is lower than 0.3%. The process can provide guidance for production of similar mines.

Description

technical field [0001] The invention belongs to the technical field of polymetallic beneficiation, and in particular relates to a spodumene ore beneficiation and separation process. Background technique [0002] Lithium exists mainly in two types in nature, one is spodumene (containing Li 2 O 4.8%~8.1%), lepidolite (containing Li 2 O 3.2%~6.45%), petalite (containing Li 2 O 2.9%~4.8%) and other forms of lithium-containing ores exist in rock ores, and the other exists in salt lake brine, underground brine and seawater in the form of lithium ions. About 70% of the world's lithium exists in salt lakes, and about 30% comes from ores. At present, my country's lithium mines are mainly distributed in the Qinghai-Tibet Plateau, Jiangxi, Xinjiang, Sichuan and Hunan. Among them, the Qinghai-Tibet Plateau is mostly salt lake brine type lithium mines. Yichun is the production base of lepidolite, and other areas are of granite crystal rock or granite mineral type. [0003] Spodumene i...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03D1/018B03D101/02B03D103/02
CPCB03B7/00B03D1/018B03D2201/02B03D2203/02
Inventor 卿林江张敏淡永富张建刚邓春华
Owner CINF ENG CO LTD
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