Flotation activator for crystalline uranium ore and application of flotation activator

An activator and uranium ore technology, applied in flotation, solid separation and other directions, can solve the problems of ineffective enrichment of crystalline uranium ore and poor selectivity of crystalline uranium ore, so as to achieve effective flotation and improve selectivity. Effect

Inactive Publication Date: 2020-07-28
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

[0003] The present invention aims at the problem that the selectivity of the collector to the crystalline uranium ore is poor in the flotation process of the crystalline uranium ore, and the problem that the crystalline uranium ore cannot be effectively enriched, and a flotation activator and the crystalline uranium ore are invented. In its application, the crystalline uranium ore can be effectively activated by adding the invented flotation activator, and the adsorption capacity of the crystalline uranium ore surface to the collector can be enhanced, so that the crystalline uranium ore can be effectively flotation

Method used

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  • Flotation activator for crystalline uranium ore and application of flotation activator
  • Flotation activator for crystalline uranium ore and application of flotation activator
  • Flotation activator for crystalline uranium ore and application of flotation activator

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Experimental program
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Effect test

Embodiment 1

[0036] The main gangue minerals of a pegmatite-type uranium ore are feldspar and quartz, the content of which is basically equal, and the content of biotite varies between 5% and 20%, and a small amount of muscovite is occasionally seen, followed by pyrite and magnetite ore, limonite, molybdenite, zircon, monazite, uranium mainly exists in the state of independent uranium minerals - crystalline uranium ore. Or disseminated distribution, uranium grade 0.088%.

[0037] (1) account for 60% according to ferric chloride massfraction, copper sulfate massfraction accounts for 35%, the concentrated sulfuric acid massfraction of massfraction 98% accounts for 5% ratio configuration activator, adds water in activator, at rotating speed 1000r / Under the condition of 5 min, stir with a stirrer for 5 min to prepare a 5% activator aqueous solution.

[0038] (2) After the ore is crushed to -3mm, the ore is ground to a fineness of -200 mesh accounting for 60%, the concentration of the ore pul...

Embodiment 2

[0044] The main gangue minerals of a pegmatite-type uranium ore are feldspar and quartz, the content of which is basically equal, and the content of biotite varies between 5% and 20%, and a small amount of muscovite is occasionally seen, followed by pyrite and magnetite ore, limonite, molybdenite, zircon, monazite, uranium mainly exists in the state of independent uranium minerals - crystalline uranium ore. Or disseminated distribution, uranium grade 0.088%.

[0045] (1) account for 55% according to ferric chloride massfraction, copper sulfate massfraction accounts for 40%, the concentrated sulfuric acid massfraction of massfraction 98% accounts for 5% ratio configuration activator, adds water in activator, at rotating speed 1200r / Under the condition of 10 min, stir with a stirrer for 10 min to prepare a 10% activator aqueous solution.

[0046] (2) After the ore is crushed to -2mm, the ore is ground to a fineness of -200 mesh accounting for 70%, the concentration of the ore ...

Embodiment 3

[0055] The main gangue minerals of a pegmatite-type uranium ore are feldspar and quartz, the content of which is basically equal, and the content of biotite varies between 5% and 20%, and a small amount of muscovite is occasionally seen, followed by pyrite and magnetite ore, limonite, molybdenite, zircon, monazite, uranium mainly exists in the state of independent uranium minerals - crystalline uranium ore. Or disseminated distribution, uranium grade 0.088%.

[0056] (1) account for 65% according to ferric chloride massfraction, copper sulfate massfraction accounts for 30%, the concentrated sulfuric acid massfraction of massfraction 98% accounts for 5% ratio configuration activator, adds water in activator, at rotating speed 1500r / Under the condition of 5 min, stir with a stirrer for 5 min to prepare a 5% activator aqueous solution.

[0057] (2) After the ore is crushed to -2.5mm, the ore is ground to a fineness of -200 mesh accounting for 750%, the concentration of the ore ...

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Abstract

The invention belongs to the technical field of beneficiation, and particularly relates to a flotation activator for crystalline uranium ore and application of the flotation activator. The flotation activator is prepared through steps of: preparing an activator aqueous solution; milling ore, and regulating the concentration of ore pulp until the mass fraction of the ore accounts for 10%-40%, and transferring the ore pulp into a flotation tank; adding a prepared activator aqueous solution into the ore pulp, and stirring the mixture to enable the activator to be in full contact with target minerals; adding benzhydroxamic acid serving as a collecting agent of the crystalline uranium ore into the ore pulp, and stirring the mixture to enable the collecting agent to be in full contact with the target ore; after the collecting agent makes full contact with the niobium-titanium-uranium ore, adding No.2 oil for stirring, carrying out air inflation flotation on the niobium-titanium-uranium ore,thus obtaining roughing concentrate and roughing tailings; adding the activator into the roughing tailings, stirring the mixture, adding a collecting agent, stirring the mixture, and scavenging the ore to obtain scavenged concentrate and flotation tailings; and blending the obtained roughing concentrate and scavenging concentrate, performing concentration for multiple times, and successively feeding the concentrated tailings back to the previous stage until flotation till the ideal flotation index is achieved. The activator can effectively activate the crystalline uranium ore, and effective flotation of the crystalline uranium ore is achieved.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a flotation activator for crystalline uranium ore and its application. Background technique [0002] Crystalline uranium ore (UO 2 ) belongs to one of the main types of uranium minerals in my country, with strong radioactivity and weak magnetism, particle size 0.1-0.3mm, maximum 1mm, black, green streaks, equiaxed crystal system, clustered in cubes and undeveloped octahedrons Mainly. The crystalline uranium ore in my country is mainly distributed in the granitic uranium ore, and the uranium grade is generally below 0.1%. The crystalline uranium ore belongs to the primary uranium ore, and an oxidant needs to be added during leaching. In my country, uranium in crystalline uranium ore is generally recovered by direct stirring leaching or heap leaching. Due to the low grade of uranium in the ore and the need to add oxidants during the leaching process, the pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/002B03D1/02B03D1/08B03D103/04
CPCB03D1/002B03D1/02B03D1/08B03D2203/04Y02P10/20
Inventor 刘志超李广
Owner BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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