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Leaching method of uranium and molybdenum associated ore

An associated ore and leaching technology, applied in the field of hydrometallurgy, can solve the problems of low resource utilization and difficulty in solving production costs

Active Publication Date: 2011-03-30
BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The extraction rate can reach 90%, while the leaching rate of molybdenum is only 30%. In addition, it is difficult to solve the problems of high production cost and low resource utilization rate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The leaching time was 1 hour, and the continuous stirring mode was taken.

Embodiment 2

[0024] The leaching time was 10 hours, and the continuous stirring mode was taken.

Embodiment 3

[0032] The leaching time was 9 hours.

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PUM

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Abstract

The invention relates to a method for leaching uranium-molybdenum associated ore. It uses leaching agent and oxidant to extract uranium and molybdenum in the ore; the leaching agent used is a mixture of water, sulfuric acid, soluble inorganic sulfate or inorganic bisulfate, and the hydrogen ion concentration in the leaching agent is 1.5mol / L~ 5.1mol / L, the amount of soluble inorganic sulfate or inorganic bisulfate is 0.1%-2% (weight) of the ore weight; the leaching method is carried out at 20°C-120°C. The leaching rate of uranium-molybdenum associated ore by the method of the invention is high, the production cost is low, and the resource utilization rate is high. The leaching rate of uranium slag can be increased from 40% to more than 70%, and the leaching rate of molybdenum can be increased from less than 30% to more than 75%. .

Description

Technical field of leaching method for uranium and molybdenum associated ore The present invention relates to the hydrometallurgical technology of uranium-molybdenum associated ore leaching, be specifically related to a kind of uranium-molybdenum associated ore leaching method Law. Background technique The countries such as the U.S., France, Niger, Mexico, the former Soviet Union are all comprehensively recovered from the associated ore of uranium and molybdenum Molybdenum, and a lot of research has been done on the comprehensive recovery technology of associated ores. For example, the foreign uranium industry has used pressurized alkali leaching for uranium molybdenum companion The leaching of raw ore has achieved certain results; some easy-to-leach uranium-molybdenum ores can also be treated by atmospheric pressure acid leaching and alkali leaching. domestic uranium The research on molybdenum comprehensive recovery technology began in the late 1960s, and began to b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B60/02C22B34/34C22B3/04
Inventor 王洪明孟晋黄崇元赵满常叶连升王平康绍辉王凯赵良仁
Owner BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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