A sorting process of uranium-containing boron iron ore

Abstract

The invention relates to a sorting process of uranium-containing boron iron ore, which is characterized in that it comprises an iron concentrate ore dressing process, a uranium concentrate sorting process and a boron concentrate sorting process, and the iron ore concentrate sorting process of the present invention adopts Two-stage ball mill adopts stage grinding stage separation process, and the use of two-stage ball mill is beneficial to ensure that the ‑0.043mm particle size content of the final boron concentrate is less than 80%, which meets the particle size requirements of boron chemical industry for boron concentrate; uranium concentrate The separation system adopts the "fine screening and classification" process to prepare the magnetic separation tailings before gravity separation, which can realize classification and separation, which is conducive to improving the separation index; the iron concentrate separation system comprehensive magnetic separation tailings in the third The recovery rates of diboron oxide and uranium are both above 66%, the recovery rate of diboron trioxide in the comprehensive tailings of the uranium concentrate sorting system is 60% to 65%, and the recovery rate of iron in the final iron concentrate can reach 80%. Above, the recovery rate of uranium element in the final uranium concentrate can reach 35%, and the recovery rate of diboron trioxide in the final boron concentrate can reach 35%, which can achieve good economic benefits.

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...

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 still a lack of a comprehensive sorting process to obtain qualified iron concentrate, boron concentrate and uranium concentrate while ensuring the recovery rate of iron, boron trioxide and uranium within a reasonable range under the condition of low cost.

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