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Method for separating scandium from bayan obo tailings

A tailings and roughing technology, which is applied in chemical instruments and methods, flotation, magnetic separation, etc., can solve the problems that are rare, ore dressing patents have not been reported, and achieve continuous process, good technical indicators, simple and scientific process Effect

Inactive Publication Date: 2013-01-23
INNER MONGOLIA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, there are not many literatures on recovering scandium from Baiyun Obo tailings, and except for a small number of patents such as: application number 85106255 that mentions the extraction of scandium resources from Baiyunbo mines, the recovery of scandium from Baiyun Obo tailings or even raw ore The beneficiation patent for extracting scandium from the

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  • Method for separating scandium from bayan obo tailings

Examples

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Embodiment 1

[0024] The raw material of Baiyan Obo tailings in Baotou Iron and Steel tailings dam was determined to contain Sc 2 o 3 200ppm, utilize technology of the present invention to sort scandium enrichment, concrete steps are as follows figure 1 :

[0025] (1) Classification: Classify the tailings of Baiyun Obo, separate the coarse-grained ore from the fine-grained ore, finely grind the coarse-grained ore with a ball mill, and return it to the classifier after grinding. The fine-grained ore is used as a raw material for weak magnetic separation, and fine-grained ore is required Ore particle size -200 mesh accounts for more than 95%;

[0026] (2) Weak magnetic separation: Weak magnetic separation is carried out after the fine-grained ore obtained by classification and accounting for more than 95% of -200 mesh has a pulping mass concentration of 12%. Weak magnetic separation includes primary roughing and primary sweeping. First carry out weak magnetic separation roughing, the magn...

Embodiment 2

[0031] The raw material is Baiyun Obo tailings after iron separation in Baotou Iron and Steel West Mine. It has been determined that the raw material contains Sc 2 o 3 180ppm, utilize technology of the present invention to sort scandium enrichment, concrete steps are as follows figure 1 :

[0032](1) Classification: Classify the tailings of Baiyun Obo, separate the coarse-grained ore from the fine-grained ore, finely grind the coarse-grained ore with a ball mill, and return it to the classifier after grinding. The fine-grained ore is used as a raw material for weak magnetic separation, and fine-grained ore is required Ore particle size -200 mesh accounts for more than 95%;

[0033] (2) Weak magnetic separation: Weak magnetic separation is carried out after the fine-grained ore obtained by classification is -200 mesh accounting for more than 95% and the mass concentration is 15%. The weak magnetic separation includes primary roughing and primary sweeping. First carry out we...

Embodiment 3

[0038] The raw material is the Baiyan Obo tailings after the rare earth selection by Baotou Iron and Steel Co., Ltd., and it has been determined that the raw material contains Sc 2 o 3 150ppm, utilizing the process technology of the present invention to sort scandium enrichment, concrete steps are as follows figure 1 :

[0039] (1) Classification: Classify the tailings of Baiyun Obo, separate the coarse-grained ore from the fine-grained ore, finely grind the coarse-grained ore with a ball mill, and return it to the classifier after grinding. The fine-grained ore is used as a raw material for weak magnetic separation, and fine-grained ore is required Ore particle size -200 mesh accounts for more than 95%;

[0040] (2) Weak magnetic separation: Weak magnetic separation is carried out after the graded fine-grained ore with -200 mesh accounting for more than 95% has a mass concentration of 25%. The weak magnetic separation includes primary roughing and primary sweeping. First ...

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Abstract

The invention discloses a method for separating scandium from bayan obo tailings, which belongs to the field of mineral separation. The method takes the bayan obo tailings are raw materials and comprises the following steps of: grading the raw materials; grinding obtained coarse granular ores, and then returning and grading the ground ores; carrying out size mixing on fine granular ores, then performing low intensity magnetic separation on the fine granular ores to form a closed circuit grinding process; performing floatation on the selected tailings subjected to the low intensity magnetic separation; and then carrying out high intensity magnetic separation on ore pulp of the tailings subjected to the flotation, thus obtaining non-magnetic ores which are the concentrated scandium. According to the method disclosed by the invention, the fractionation and mineral separation method is adopted, the technology is simple and scientific, the concentrated scandium with the content of scandium oxide being more than 420ppm and the recovery rate being more than 65% can be obtained, and other recyclable resources in the bayan obo tailings can be further concentrated when the concentrated scandium is obtained.

Description

[0001] technical field [0002] The invention relates to a method for beneficiating scandium from Baiyun Obo tailings, which belongs to the technical field of beneficiation. Background technique [0003] In addition to being rich in valuable resources such as iron, rare earth, fluorite, and niobium, the Baiyun Obo deposit also has considerable scandium content and reserves. However, due to the fact that scandium is a scattered element, the scandium resources in the raw ore of Baiyun Obo have not been developed and utilized. However, during the development and utilization of iron and rare earths in Baiyan Obo Mine, except for a small amount of scandium that is lost with the output of iron concentrates and rare earth concentrates, most scandium is discharged in the form of tailings, which enriches scandium to a certain extent , enriched from about 80ppm ore to about 200ppm. [0004] However, the scandium in the tailings of Baiyun Obo has not been recycled so far. On the one ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C1/30B03C1/02B03D1/02B03B1/00
Inventor 李梅张栋梁柳召刚王觅堂胡艳宏张永强高凯
Owner INNER MONGOLIA UNIV OF SCI & TECH
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