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Selective flocculation column flotation concentration process for micro-fine particle rutile ores

A rutile ore and selective technology, applied in the mineral processing field, can solve problems such as the adverse effects of mechanical entrainment, and achieve the effects of improving flotation indicators, improving grades, uniform bubbles and distribution

Inactive Publication Date: 2021-11-05
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above technologies have not provided relevant solutions for the adverse effects of mechanical entrainment on sorting taste

Method used

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  • Selective flocculation column flotation concentration process for micro-fine particle rutile ores

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In the rutile rough concentrate used in the present invention, the average titanium grade is 11.86%.

[0031] first step

[0032] Carry out fine grinding operation of coarse ore concentrate, and obtain 92% of the particle size in the fine-grained ore slurry is not higher than 0.074mm.

[0033] Mix the fine material pulp with sodium hexametaphosphate, and fully disperse the particles in the pulp under the conditions of sodium hexametaphosphate dosage 500g / t, stirring time 9min, stirring speed 1000r / min.

[0034] The dispersed pulp is mixed with kerosene, and the particles in the pulp are fully and selectively agglomerated under the conditions of 1000g / t kerosene dosage, 15min stirring time and 1200r / min stirring speed.

[0035] second step

[0036] The agglomerated ore pulp is mixed with sodium fluorosilicate, water glass, lead nitrate, sodium oleate, and benzyl hydroxamic acid and fed into the flotation column for selective flocculation column flotation and concentrat...

Embodiment 2

[0046] The ore sample that adopts is identical with embodiment 1.

[0047] first step

[0048]Carry out fine grinding operation of coarse ore concentrate, and obtain 92% of the particle size in the fine-grained ore slurry is not higher than 0.074mm.

[0049] Mix the fine material pulp with sodium hexametaphosphate, and fully disperse the particles in the pulp under the conditions of sodium hexametaphosphate dosage 500g / t, stirring time 9min, stirring speed 1000r / min.

[0050] The dispersed pulp is mixed with kerosene, and the particles in the pulp are fully selectively flocculated under the conditions of kerosene dosage of 1000g / t, stirring time of 15min, and stirring speed of 1200r / min.

[0051] second step

[0052] The agglomerated pulp is mixed with sodium fluorosilicate, water glass, lead nitrate, sodium oleate, and benzyl hydroxamic acid to carry out the roughing process of selective flocculation column flotation and concentration of fine-grained rutile ore. In the rou...

Embodiment 3

[0062] The ore sample that adopts is identical with embodiment 1.

[0063] first step

[0064] Carry out fine grinding operation of coarse ore concentrate, and obtain 92% of the particle size in the fine-grained ore slurry is not higher than 0.074mm.

[0065] Mix the fine material pulp with sodium hexametaphosphate, and fully disperse the particles in the pulp under the conditions of sodium hexametaphosphate dosage 600g / t, stirring time 8min, stirring speed 1100r / min.

[0066] The dispersed pulp is mixed with kerosene, and the particles in the pulp are fully and selectively agglomerated under the conditions of 1200g / t kerosene dosage, 12min stirring time and 1200r / min stirring speed.

[0067] second step

[0068] Mix the agglomerated ore pulp with sodium fluorosilicate, water glass, lead nitrate, sodium oleate, and benzyl hydroxamic acid to carry out selective flocculation column flotation and concentration of fine-grained rutile ore. In any process of roughing, first benef...

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Abstract

The invention belongs to the technical field of mineral separation, and particularly relates to a selective flocculation column flotation concentration process for micro-fine particle rutile ores. The process specifically comprises the steps that 1) rutile rough concentrates are finely ground, then a dispersing agent is added, stirring and dispersing are conducted, and dispersed ore pulp is obtained; 2) a flocculating agent is added into the dispersed ore pulp, and then full stirring is conducted to selectively flocculate the ore pulp to obtain flocculated ore pulp; and 3) the flocculated ore pulp and a combined titanium separation flotation agent are mixed and then fed into a flotation column to be subjected to column flotation concentration, and rutile concentrate is obtained. By adopting the method, the enrichment of the micro-fine particle rutile ores is realized by adjusting the appropriate aeration volume and the appropriate thickness of a foam layer; and high-quality rutile concentrate can be obtained, and the utilization rate of fine complex disseminated rutile ore resources is increased.

Description

technical field [0001] The invention belongs to the technical field of ore dressing, and in particular relates to a selective floc column flotation and beneficiation process for microfine rutile ore. Background technique [0002] Rutile ore is usually finely embedded and complexly packaged. The concentrate grade and recovery rate obtained by conventional flotation machines are poor, and the cost is high, which is not competitive in the market. The flotation kinetics of the flotation column is stable, the bubbles are relatively small, the distribution is more uniform, the bubble-particle flotation interface is sufficient, the enrichment ratio is large, and the recovery rate is high. Using the flotation column to treat fine-grained rutile can get better Select indicators. [0003] The micro-grained rutile has complex components and various minerals are mixed. In order to reduce the surface energy and stabilize the particles, different particles spontaneously aggregate, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03B1/04B03D3/06B03D1/02
CPCB03B7/00B03B1/04B03D3/06B03D1/02
Inventor 黄红军刘芳芳曾海鹏何国勇
Owner CENT SOUTH UNIV
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