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A kind of beneficiation method of high-calcium-magnesium type low-grade spodumene ore

A beneficiation method and spodumene technology, applied in the field of mineral processing engineering, can solve problems such as unsatisfactory beneficiation indicators, achieve the effect of reducing the amount of gangue minerals, less impurity content, and reducing beneficiation costs

Active Publication Date: 2021-11-05
CHANGSHA DESIGN & RES INST OF CHEM IND MIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Judging from the technical solutions disclosed in these documents, it is mainly aimed at the separation of low-calcium-magnesium spodumene ore, and the beneficiation index for high-calcium-magnesium-type low-grade spodumene ore is not ideal

Method used

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  • A kind of beneficiation method of high-calcium-magnesium type low-grade spodumene ore
  • A kind of beneficiation method of high-calcium-magnesium type low-grade spodumene ore
  • A kind of beneficiation method of high-calcium-magnesium type low-grade spodumene ore

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Experimental program
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Effect test

Embodiment 1

[0062] Taking high-calcium-magnesium-type low-grade spodumene in a certain place in Jiangxi as an example, among them, the ore Li 2 The mass percentage of O content is 0.68%, the mass percentage of CaO content is 5.10%, the mass percentage of MgO content is 1.70%, SiO 2 The mass percentage of content is 67.81%, and the specific steps of the present embodiment are as follows:

[0063] (1) Crushing, scrubbing and grading, the raw ore is crushed until the particle size is -40mm. The quality of the ore under the sieve is equal to 100% of the total raw ore quality, and the standard sieve is used for manual scrubbing, and the raw ore is divided into -40mm~+10mm, -10mm~+0.050 mm, -0.050mm three grades of materials, among which, 0.050mm grade materials are directly thrown as tailings;

[0064] (2) Photoelectric separation and decalcification of magnesium: the -40mm ~ +10mm material is subjected to photoelectric separation, the pressure of the nozzle is 1.0Mpa, the material feeding be...

Embodiment 2

[0075] Taking high-calcium-magnesium-type low-grade spodumene in a certain place in Henan as an example, the ore Li 2 The mass percentage of O content is 0.47%, the mass percentage of CaO content is 6.36%, the mass percentage of MgO content is 1.54%, SiO 2 The mass percentage of the content is 64.82%. This embodiment includes the following steps:

[0076] (1) Crushing, scrubbing and grading, the raw ore is crushed until the particle size is -40mm. The quality of the ore under the sieve is equal to 100% of the total raw ore quality, and the standard sieve is used for manual scrubbing, and the raw ore is divided into -40mm~+10mm, -10mm~+0.050 mm, -0.050mm three grades of materials, of which -0.050mm grade materials are directly thrown as tailings;

[0077] (2) Photoelectric separation and decalcification of magnesium: -40mm ~ +10mm materials are subjected to photoelectric separation, the nozzle pressure is 1.0Mpa, the material feeding belt speed is 2m / min, and the photoelectri...

Embodiment 3

[0088] Taking high-calcium-magnesium-type low-grade spodumene in a certain place in Sichuan as an example, the ore Li 2 The mass percent of O is 0.89%, the mass percent of CaO is 4.58%, the mass percent of MgO is 1.38%, and the SiO 2 The mass percentage is 65.99%. This embodiment specifically includes the following steps:

[0089] (1) Crushing, scrubbing and grading, the raw ore is crushed until the particle size is -40mm. The quality of the ore under the sieve is equal to 100% of the total raw ore quality, and the standard sieve is used for manual scrubbing, and the raw ore is divided into -40mm~+10mm, -10mm~+0.050 mm, -0.050mm three grades of materials, of which -0.050mm grade materials are directly thrown as tailings;

[0090] (2) Photoelectric separation and decalcification of magnesium: -40mm ~ +10mm materials are subjected to photoelectric separation, the nozzle pressure is 1.0Mpa, the material feeding belt speed is 2m / min, and the photoelectric separation concentrate ...

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Abstract

A beneficiation method for high-calcium-magnesium-type low-grade spodumene ore. In the method of the present invention, after scrubbing and grading high-calcium-magnesium type low-grade spodumene ore, photoelectric separation of calcium-magnesium decalcification and flotation decalcification of magnesium magnesium are used to remove calcium and magnesium impurities in order to obtain decalcified magnesium flotation concentrate, and then Spodumene concentrate products are obtained by single or multiple flotation. The ore dressing method of the invention can remove most of the calcium and magnesium impurities in the spodumene, and realize the goal of producing high-quality spodumene concentrate by adopting high-calcium and magnesium-type low-grade spodumene.

Description

technical field [0001] The invention relates to the technical field of mineral processing engineering, in particular to a beneficiation method for high-calcium-magnesium type low-grade spodumene ore. Background technique [0002] Lithium has excellent physical and chemical properties, and with the development of science and technology, its application fields continue to expand. At present, there are more than 100 kinds of lithium and its products, which are mainly used in the production of electrolytic aluminum additives, lubricants in the machinery industry, and the manufacture of high-capacity lithium batteries; Applications are also growing. Therefore, in recent years, the demand of domestic and foreign lithium markets has shown a steady upward trend. In particular, the consumption of lithium metal for high-energy batteries, butyllithium for rubber, and lithium bromide for refrigeration has grown rapidly. Especially in recent years, the development of various electric v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B7/00
CPCB03B7/00
Inventor 余俊胡勇甘顺鹏季荣蒋世鹏谢超郑贤福邹娟杨三妹杨清
Owner CHANGSHA DESIGN & RES INST OF CHEM IND MIN