Uranium-bearing paigeite separating process

A technology, iron ore concentrate technology, applied in the field of uranium-containing boron iron ore sorting process, to achieve the effect of improving the sorting index and good economic benefits

Active Publication Date: 2015-01-07
中冶北方(大连)工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In my country, the separation technology of iron, diboron trioxide and uranium has been matured. Magnetite is generally separated by magnetic separation, and uranium and diboron trioxide are generally separated by gravity separation. However, there is s

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  • Uranium-bearing paigeite separating process

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Embodiment Construction

[0027] The specific embodiment of the present invention will be further described below in conjunction with the attached table.

[0028] Such as figure 1 As shown, a kind of uranium-containing boron iron ore sorting process of the present invention is characterized in that comprising iron concentrate ore dressing process, uranium concentrate sorting process and boron concentrate sorting process,

[0029] a. Iron concentrate beneficiation process:

[0030] Two-stage grinding-classification-two-stage magnetic separation process is adopted, and the specific steps are as follows:

[0031] ⑴ After crushing and screening, the raw ore with a particle size of 0-12mm has an iron grade of 28%-32%, a uranium grade of 0.005%-0.006%, and a boron trioxide grade of 5%-7%. The belt conveyor is fed into the primary closed-circuit grinding composed of primary ball mill ~ cyclone I classification, and the proportion of ore powder of the primary closed-circuit grinding product is controlled at ...

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Abstract

The invention relates to a uranium-bearing paigeite separating process. The uranium-bearing paigeite separating process is characterized by comprising an iron concentrate separating process, a uranium concentrate separating process and a boron concentrate separating process. The iron concentrate separating process comprises two-section ball grinding and adopts a sectional grinding and sectional separation process, wherein the two-section ball grinding guarantees that the -0.043 mm fraction content of final boron concentrate can be less than 80% and meets the granularity requirements of boron industry on the boron concentrate; a uranium concentrate separating system utilizes a fine screening and grading process to perform pre-gravity-separation processing and treatment on magnetic-separated tailings to achieve hierarchical separation and improve the separation indexes; the recovery rate of both diboron trioxide and uranium inside the comprehensive magnetic-separated tailings of an iron concentrate separating system can reach up to more than 66%, the recovery rate of diboron trioxide inside the comprehensive tailings of the uranium concentrate separating system can reach 60%-65%, the recovery rate of final iron concentrate can reach more than 80%, the recovery rate of final uranium concentrate can reach 35%, and the recovery rate of the final boron concentrate can reach 35%. Therefore, good economic benefits can be obtained.

Description

technical field [0001] The invention belongs to the technical field of mixed ore beneficiation, in particular to a beneficiation process of uranium-containing boron iron ore. Background technique [0002] In the Fengcheng area of ​​Dandong, my country, there are rich boronite resources. The ore belongs to boronite (boronite)-magnetite type ore, and the ore is mostly dense block, strip, network vein or spot Miscellaneous structure. The composition of the ore is relatively complex, and the useful minerals are mainly magnetite, followed by boronite, boronite and crystalline uranium ore. The grade of the ore entering the mill is 28%-32% iron, 0.005%-0.006% uranium, 5%-7% boron trioxide, and the grades of iron, boron trioxide and uranium have all reached a certain separation value . In my country, the separation technology of iron, diboron trioxide and uranium has been matured. Magnetite is generally separated by magnetic separation, and uranium and diboron trioxide are general...

Claims

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Application Information

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IPC IPC(8): B03B7/00
CPCB03B7/00
Inventor 李国洲
Owner 中冶北方(大连)工程技术有限公司
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