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Method for flotation of carbonate minerals from mudstone-type uranium ore

A technology of carbonate minerals and carbonates, applied in the field of uranium mining and metallurgy, can solve problems such as metal loss and achieve the effect of reducing sulfuric acid consumption

Active Publication Date: 2018-11-02
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

For mudstone-type uranium ores, due to the water-soluble and easily adsorbed properties of uranium on clay, desliming will cause a large amount of metal loss

Method used

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  • Method for flotation of carbonate minerals from mudstone-type uranium ore
  • Method for flotation of carbonate minerals from mudstone-type uranium ore

Examples

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Effect test

Embodiment 1

[0022] Such as figure 1 Shown, a kind of method for flotation carbonate mineral from mudstone type uranium ore of the present invention, it floats carbonate mineral from mudstone type uranium ore, specifically comprises the following steps:

[0023] (1) Carry out classification or ore grinding to carbonate raw ore, obtain the ore pulp that fineness-0.074mm accounts for 85wt% of raw ore total amount;

[0024] (2) putting the ore pulp gained in step (1) into a flotation machine, adjusting the concentration of the ore pulp to 20wt%, and the temperature of the ore pulp at 45°C;

[0025] (3) add dispersant water glass in the described ore slurry of step (2), water glass is used as the inhibitor of other minerals simultaneously; Water glass consumption is that every ton of raw ore adds 5000g, stirs 5min; So that water glass fully acts on detoxification The surface of other types of minerals except carbonate minerals enhances the hydrophilicity, so that the mineral fine mud is fully...

Embodiment 2

[0029] Such as figure 1 Shown, a kind of method for flotation carbonate mineral from mudstone type uranium ore of the present invention, it floats carbonate mineral from mudstone type uranium ore, specifically comprises the following steps:

[0030] (1) Carry out classification or ore grinding to carbonate raw ore, obtain the ore pulp that fineness-0.074mm accounts for 80wt% of raw ore total amount;

[0031] (2) putting the ore pulp obtained in step (1) into a flotation machine, adjusting the concentration of the ore pulp to 10wt%, and the temperature of the ore pulp at 15°C;

[0032] (3) add dispersant water glass in the described ore slurry of step (2), water glass is used as the inhibitor of other minerals simultaneously; Water glass consumption is that every ton of raw ore adds 2000g, stirs 1min; So that water glass fully acts on removing The surface of other minerals other than carbonate minerals enhances its hydrophilicity, so that the mineral fine mud is fully disperse...

Embodiment 3

[0036] Such as figure 1 Shown, a kind of method of flotation carbonate mineral from mudstone type uranium ore of the present invention, it floats carbonate mineral from mudstone type uranium ore, specifically comprises the following steps:

[0037] (1) Grading or grinding the raw ore of mudstone type uranium ore to obtain ore pulp with a fineness of -0.074mm accounting for 90wt% of the total raw ore;

[0038] (2) putting the ore pulp obtained in step (1) into a flotation machine, adjusting the concentration of the ore pulp to 35wt%, and the temperature of the ore pulp at 60°C;

[0039](3) add dispersant water glass in the described ore slurry of step (2), water glass is used as the inhibitor of other minerals simultaneously; Water glass consumption is that every ton of raw ore adds 8000g, stirs 10min; The surface of other minerals other than carbonate minerals enhances its hydrophilicity, so that the mineral fine mud is fully dispersed and is conducive to flotation.

[0040]...

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Abstract

The invention provides a method for flotation of a carbonate mineral from mud-stone type uranium ore. The method for the flotation of the carbonate mineral from the mud-stone type uranium ore comprises the following steps: (1) classifying or grinding carbonate crude ore and obtaining pulp; (2) putting the pulp into a flotation machine, then adjusting the concentration of the pulp to 10-35 wt% and adjusting the temperature of the pulp to 15-60 DEG C; (3) adding water glass into the pulp as dispersing agent and taking the water glass as inhibitor of other mineral at the same time; (4) adding oxidized paraffin soap into the pulp as collecting agent; (5) opening an air intake valve of the flotation machine to let air get into the flotation machine, then making bubbles under a stirring action of the flotation machine. The carbonate mineral which is subjected to the action of the collecting agent adheres to the bubbles selectively and floats up to the surface of the pulp, then foam is scrapped out by a forth scraping device. The other mineral stays in a flotation tank during the flotation. The other mineral is a tailing which removes the carbonate. According to the method for the flotation of the carbonate mineral from the mud-stone type uranium ore, the better flotation index can be obtained and the sorting of the carbonate mineral can be realized.

Description

technical field [0001] The invention belongs to the technical field of uranium mining and metallurgy, and relates to a method for flotation of carbonate minerals, in particular to a method for flotation of carbonate minerals from mudstone-type uranium ore. Background technique [0002] The uranium element in uranium ore usually exists in the ore in two states of ion adsorption and uranium mineral particles. In my country, sandstone and mudstone uranium deposits account for a large proportion, while hard rock uranium deposits account for a small proportion. Uranium in sandstone and mudstone uranium deposits is mainly in the state of ion adsorption, and uranium is widely adsorbed in various minerals in the ore. In-situ leaching is generally used for sandstone uranium ores in my country; for mudstone-type uranium ores, due to poor permeability, in-situ leaching cannot be carried out, and stirring leaching can only be used. During acid leaching, the consumption of sulfuric acid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/00B03D1/002B03D1/016B03D101/02B03D101/06B03D103/02
CPCB03D1/00B03D1/002B03D1/016B03D2201/005B03D2201/02B03D2201/06B03D2203/02
Inventor 李广刘志超强录德李春风马嘉唐宝彬
Owner BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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