Method for promoting uranium ore leaching by applying magnetic field

A uranium ore and leaching technology, which is applied in the fields of metallurgy and chemical industry, can solve the problems of ore layer blockage and low leaching efficiency, and achieve the effect of strengthening leaching effect, accelerating leaching rate, and enhancing dissolution

Inactive Publication Date: 2021-06-25
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a method for using a magnetic field to promote uranium ore leaching, aiming to solve the problems of low leaching efficiency and serious blockage of ore seams in the existing uranium ore leaching process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Dilute sulfuric acid having a concentration of 3.5 g / L at a flow rate of 0.008 m / s passes through a pipe having a length of 5 m diameter of 10 cm, and the magnetic field strength of the magnetic field generator provided outside the conduit is 2T, and the dilute sulfuric acid is magnetized to enter the underground uranium mineral layer. , The solid-liquid ratio of uranium moine ore and dilute sulfuric acid is 1: 1.1, wherein the volume of uranium moine ore is calculated according to the position of the injection and the position of the drawing hole in the ground, and the volume of the survey is obtained. Dilute sulfuric acid is lifted into the ground table after the solution after the foundation and uranium mine reacts.

Embodiment 2

[0033] The concentration of 1.5 g / L is a pipe having a flow rate of 0.006 m / s through a pipe having a diameter of 20 cm. The magnetic field strength of the magnetic field generator provided in the pipe is 3T, and the ammonium carbonate is magnetized (simultaneously added) Oxygen, hydrogen peroxide, etc., into the underground uranium mineral, solid-liquid ratio of uranium moine ore and ammonium carbonate is 1: 0.98, wherein the volume of uranium moine ore is laid in the underlying injection and the position of the drawing hole, and the survey Volume is calculated. The solute of the heavy carbonate in the ground and the uranium mine is lifted to the ground table.

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Abstract

The invention discloses a method for promoting uranium ore leaching by applying a magnetic field. The method comprises the steps that (1) a leaching solution is magnetized through a pipeline, a magnetic field generator is arranged outside the pipeline, and the leaching solution is any one of an acid leaching solution, an alkaline leaching solution or a neutral leaching solution; and (2) the magnetized leaching solution is introduced into a liquid injection drill hole to be injected into an underground uranium ore layer, and then solute is lifted to the earth surface through a liquid extraction hole away from the liquid injection drill hole by a preset distance. According to the scheme, more dissolved oxygen can be provided for the oxidation leaching process of uranium, and therefore the oxidation leaching process is enhanced, blockage of calcium sulfate crystals to a leaching solution seepage channel can be reduced, and the migration capacity of the solute is improved.

Description

Technical field [0001] The present invention belongs to the field of metallurgy and chemical technology, and more particularly to a method of applying a magnetic field to promote uranium oligibility. Background technique [0002] Uranium is a necessary raw material for producing nuclear weapons, nuclear submarines, etc., is also an important fuel for development of clean energy nuclear power generation, and thorium bombards can be fissure to u 233 It is a more secure nuclear fuel than uranium. At the same time, the ruthenium alloy is highly strong, the density is small, and the corrosion resistance is high, which is an important structural material and housing material for high-speed aircraft, rockets and spacecraft. Therefore, uranium and thorium are irreplaceable military and civilian strategic materials. [0003] my country's uranium resources are mainly four types such as sandstone type, granite type, volcanic rock and carboli mud rock type, of which sandstone uranium mines a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/08C22B60/02
CPCC22B3/08C22B60/0234
Inventor 蒋良兴刘芳洋
Owner CENT SOUTH UNIV
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