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A rutile beneficiation method of magnetic separation, tailing, gravity separation, desliming and fine particle flotation

A beneficiation method and flotation technology, applied in the field of rutile beneficiation, can solve the problems of poor beneficiation effect, high cost, and low rutile recovery rate, and achieve the effect of reducing the amount of flotation and reducing the cost of beneficiation

Inactive Publication Date: 2015-09-30
CENT SOUTH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing rutile beneficiation roughing and tailing process is complicated, the cost is high, the beneficiation effect is not good, and the recovery rate of rutile is low.

Method used

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  • A rutile beneficiation method of magnetic separation, tailing, gravity separation, desliming and fine particle flotation

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A rutile mine in Hubei is used as the raw rutile ore, which contains rutile TiO 22.24%. The main titanium-containing minerals in this ore are rutile, a small amount of ilmenite and titanite, other metal oxide minerals include a small amount to trace limonite, hematite and magnetite, and only trace pyrite in metal sulfide minerals; gangue minerals Mainly hornblende, followed by garnet, sodium mica, epidote, feldspar, chlorite, clay, quartz and so on. The particle size distribution range of rutile intercalation is wide, and the particle size is extremely uneven, mainly concentrated in 0.01-0.32mm. The intercalation relationship between rutile and gangue minerals is complex. Most rutiles are distributed in gangue minerals such as hornblende, garnet, and muscovite in the form of disseminated unequal grains and disseminated fine grains. The grain size of these rutiles is extremely uneven. , belongs to the primary refractory rutile mine in my country. The raw rutile ore is ...

Embodiment 2

[0029] The Zaoyang rutile ore is used as the raw rutile ore, which contains a large amount of magnetic minerals such as ilmenite, garnet and hornblende, and belongs to the primary refractory rutile mine in my country. The rutile raw ore is crushed and screened until the ore feeding particle size is 3mm, and the obtained rutile ore particles are ground to a particle size of 200 mesh with a grinding machine; the ground ore powder is prepared into a slurry with a concentration of 30%, and the The ore pulp is directly passed into the magnetic separator for magnetic separation, the magnetic field strength is 900T, and the magnetic separation can throw 27.66% of the tail; after magnetic separation, the magnetic minerals and non-magnetic minerals are obtained respectively, and the non-magnetic minerals are put into the spiral chute for gravity separation. Sludge, and carried out twice re-election, adding washing water 30ml / s in the first re-election, and without washing water in the s...

Embodiment 3

[0031] The Zaoyang rutile ore is used as the raw rutile ore, which contains a large amount of magnetic minerals such as ilmenite, garnet and hornblende, and belongs to the primary refractory rutile mine in my country. The rutile raw ore is crushed and screened until the ore feeding particle size is 3mm, and the obtained rutile ore particles are ground to a particle size of 200 mesh with a grinding machine; the ground ore powder is prepared into a slurry with a concentration of 30%, and the The ore pulp is directly passed into the magnetic separator for magnetic separation, the magnetic field strength is 700T, and the magnetic separation can throw 19.74% of the tail; after magnetic separation, the magnetic minerals and non-magnetic minerals are obtained respectively, and the non-magnetic minerals are put into the spiral chute for gravity separation. Sludge, and carried out twice re-election, adding washing water 30ml / s in the first re-election, and without washing water in the s...

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Abstract

The invention relates to a rutile beneficiation method comprising magnetic separation, tailing discarding reselection, desliming and fine particle floatation. According to the method, raw rutile is crushed and screened to have a certain feed size of ore grinding; obtained rutile particles are ground to a certain particle size through an ore grinding machine to obtain ore pulp with a certain concentration through preparation; the ore pulp is led to an intensity magnetic separator for separation to obtain magnetic minerals and non-magnetic minerals; the non-magnetic minerals are subjected to the reselection for desliming to obtain ore concentrate, and then the ore concentrate is dewatered to a certain concentration; the dewatered ore concentrate is subjected to the floatation operation, gangue mineral inhibitors, rutile activators, collectors and foaming agents are added in the dewatered ore concentrate, the rutile is subjected to the flotation, and after rough separation, 1-2 times of fine separation and scavenging are carried out in sequence, rough concentrate of the flotation rutile is obtained; the rough concentrate of the flotation rutile is subjected to the magnetic separation to eliminate magnetic impurities and then eliminate sulphur and phosphorus impurities through roasting and acid pickling, and finally high-grade rutile concentrate is obtained. The method has the advantages that the process procedure is simple, beneficiation cost is low, the recovery rate is high, and the concentration ratio is high.

Description

technical field [0001] The invention relates to a rutile beneficiation method, in particular to a rutile beneficiation method using magnetic separation tailings, gravity separation desliming, and fine particle flotation. Background technique [0002] my country's natural rutile resource reserves are relatively large, but the raw ore grade is low, the particle size is fine, and the intercalation relationship is complicated, making it a complex and difficult ore. How to improve the comprehensive utilization level of primary rutile ore and realize efficient sorting of rutile is a worldwide problem. The research and breakthrough of this technology has an important impact on the development and utilization of rutile resources in my country, and is of great significance for solving the country's demand for titanium resources. The primary rutile ore in my country is a refractory rutile ore, and its characteristics are: (1) The grade of the original ore is low, containing rutile Ti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B7/00
Inventor 王军程宏伟覃文庆胡岳华姜涛刘贝赵红波邱冠周张麟王勇曾祥龙甘宏才汤雁斌李全德孙小俊
Owner CENT SOUTH UNIV
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