Beneficiation method capable of reducing leaching acid consumption of samirestie concentrate

A niobium-titanium-uranium ore dressing method technology, applied in chemical instruments and methods, flotation, magnetic separation, etc., can solve the problem of high acid consumption, achieve high grade, high recovery rate, and reduce the amount of acid-consuming minerals

Active Publication Date: 2019-03-19
BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to: aim at the problem that the acid consumption of the flotation concentrate of the niobium-titanium-uranium ore is t

Method used

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  • Beneficiation method capable of reducing leaching acid consumption of samirestie concentrate

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Experimental program
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Effect test

Embodiment 1

[0046] The main uranium-containing minerals in a heavy separation concentrate in Shaanxi are niobium-titanium-uranite, and the gangue minerals mainly include microplagioclase, calcite, magnetite, pyrite, quartz, neonite, albite, and iron dolomite , sphene, biotite, allanite, epidote, hornblende, pyroxene, etc., the grade of uranium is 0.077%.

[0047] (1) Grind the gravity concentrate to -0.074mm, accounting for 50%, adjust the pulp concentration to 25%, put it into the flotation cell, add 200g / t of sulfide ore collector butyl xanthate, stir for 5min, add Foaming agent No. 2 oil 3g / t, stirring for 3min, inflating sulfide flotation to obtain flotation sulfide concentrate and flotation tailings.

[0048] (2) The flotation tailings are magnetically separated by a weak magnetic separator with a magnetic field strength of 1500 gauss to remove magnetite to obtain magnetite concentrate and magnetic separation tailings.

[0049] (3) Add inhibitor water glass 400g / t, carboxymethyl cel...

Embodiment 2

[0052] The main uranium-containing minerals in a heavy separation concentrate in Shaanxi are niobium-titanium-uranite, and the gangue minerals mainly include microplagioclase, calcite, magnetite, pyrite, quartz, neonite, albite, and iron dolomite , sphene, biotite, allanite, epidote, hornblende, pyroxene, etc., the grade of uranium is 0.077%.

[0053] (1) Grind the gravity concentrate to -0.074mm, accounting for 70%, adjust the pulp concentration to 30%, put it into the flotation cell, add 300g / t of sulfide ore collector butyl xanthate, stir for 5min, add Foaming agent No. 2 oil 3g / t, stirring for 3min, inflating sulfide flotation to obtain flotation sulfide concentrate and flotation tailings.

[0054] (2) The flotation tailings are first roughed with a weak magnetic separator with a magnetic field strength of 1200 Gauss to obtain roughed concentrate and roughed tailings. The roughened tailings are swept with a weak magnetic separator with a magnetic field strength of 1400 Gau...

Embodiment 3

[0058] The main uranium-containing minerals in a heavy separation concentrate in Shaanxi are niobium-titanium-uranite, and the gangue minerals mainly include microplagioclase, calcite, magnetite, pyrite, quartz, neonite, albite, and iron dolomite , sphene, biotite, allanite, epidote, hornblende, pyroxene, etc., the grade of uranium is 0.077%.

[0059] The closed-circuit flotation process is adopted, and the test process is shown in figure 1 .

[0060] (1) Grind the gravity concentrate to -0.074mm, accounting for 80%, adjust the pulp concentration to 30% and put it into the flotation tank, add 150g / t of sulfide ore collector butyl xanthate, stir for 5min, add Foaming agent No. 2 oil 3g / t, stirring for 3min, aerated sulfide flotation to obtain roughing sulfide concentrate and roughing tailings, roughing sulfide concentrate is selected once, and the selected concentrate is sulfide concentrate ore, and the selected tailings return to the roughing process.

[0061] (2) The rough...

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Abstract

The invention relates to a beneficiation method capable of reducing the leaching acid consumption of samirestie concentrate. The beneficiation method capable of reducing the leaching acid consumptionof the samirestie concentrate comprises the following steps that (1) ore is grinded until the particle size of -0.074mm accounts for 40-90%, and ore pulp is obtained; (2) sulfide is subjected to flotation; (3) magnetite is removed; and (4) acid consumption gangue is restrained and samirestie is subjected to flotation. The beneficiation method capable of reducing the leaching acid consumption of the samirestie concentrate has the remarkable effects that sulphide ore with acid consumption is selected through flotation firstly before the samirestie is subjected to flotation, then the magnetite with acid consumption is recycled through weak magnetic separation, and methyl benzyl arsonic acid with good selectivity and high collecting capacity is selected as a collecting agent to operate flotation on the samirestie, inhibitors of carbonate minerals, iron minerals and aluminosilicate minerals are added at the same time, and the samirestie concentrate with high recovery ratio and high grade isobtained, and the amount of minerals with acid consumption in concentrate products is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a mineral processing method for reducing acid consumption in leaching niobium-titanium-uranium ore concentrate. Background technique [0002] In the uranium mines that adopt stirring leaching process to recover uranium in our country, the uranium ore is generally leached directly without beneficiation after crushing and grinding. In this way, not only the ore is processed two times, but also many gangue minerals in the ore will react with the leaching agent sulfuric acid, which increases the reagent cost. lead to high production costs. Niobium-titanium-uranium ore is an important uranium resource in my country, but this type of uranium ore not only has a very low uranium grade, but also niobium-titanium-uranium ore is an extremely difficult leaching uranium mineral. The main metallic minerals in the ore are magnetite, pyrite, galena, limonite, etc.; the no...

Claims

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Application Information

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IPC IPC(8): B03D1/02B03D1/018B03C1/30B03D101/02B03D101/04B03D101/06B03D103/04
CPCB03C1/30B03D1/018B03D1/02B03D2201/02B03D2201/04B03D2201/06B03D2203/04
Inventor 刘志超马嘉李春风李广强录德唐宝彬
Owner BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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