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Method for comprehensively recovering iron, sulfur and titanium from complex polymetallic ore

A technology for polymetallic ore and iron recovery, applied in the field of sulfur, titanium, and comprehensive iron recovery, which can solve the problems of difficult extraction, little attention to recovery, waste of resources, etc.

Active Publication Date: 2021-07-13
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because titanium is relatively dispersed in nature, it is difficult to extract
[0003] Since titanium-containing ores often contain valuable components such as iron and sulfur, the current process mainly considers the recovery of titanium, and pays little attention to the recovery of the associated valuable elements iron and sulfur, resulting in a waste of resources

Method used

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  • Method for comprehensively recovering iron, sulfur and titanium from complex polymetallic ore
  • Method for comprehensively recovering iron, sulfur and titanium from complex polymetallic ore
  • Method for comprehensively recovering iron, sulfur and titanium from complex polymetallic ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] In the complex polymetallic ore used in the present invention, the average iron grade is 13.20%, the sulfur grade is 5.49%, and the titanium grade is 2.96%.

[0040] first step

[0041] A stage of grinding operation is carried out, and the particle size of the fine grinding material is not higher than 0.074mm, accounting for 65%.

[0042] second step

[0043] The ground fine material is subjected to a stage of strong magnetic separation with a magnetic field strength of 960kA / m to obtain a stage of concentrated ore and a stage of tailings.

[0044] A stage of strong magnetic separation concentrate is subjected to a stage of weak magnetic separation, with a magnetic field strength of 400kA / m, to obtain a stage of weak magnetic separation concentrate and a stage of weak magnetic separation tailings. The first-stage weak magnetic separation concentrate is subjected to the second-stage weak magnetic separation concentration, and the magnetic field strength is 300kA / m, and t...

Embodiment 2

[0059] The ore sample used is the ore sample in Example 1.

[0060] first step

[0061] A stage of grinding operation is carried out, and the particle size of the grinding fine material is not higher than 0.074mm, accounting for 62%.

[0062] second step

[0063] The ground fine material is subjected to a stage of strong magnetic separation with a magnetic field strength of 1000kA / m to obtain a stage of concentrated ore and a stage of tailings.

[0064] A stage of strong magnetic separation concentrate is subjected to a stage of weak magnetic separation, with a magnetic field strength of 350kA / m, to obtain a stage of weak magnetic separation concentrate and a stage of weak magnetic separation tailings. The first-stage weak magnetic separation concentrate is subjected to the second-stage weak magnetic separation concentration, and the magnetic field strength is 400kA / m, and the second-stage weak magnetic separation concentrate and the second-stage weak magnetic separation tai...

Embodiment 3

[0079] The mine sample used is the mine sample in Example 1.

[0080] first step

[0081] A stage of grinding operation is carried out, and the particle size of the grinding fine material is not higher than 0.074mm, accounting for 60%.

[0082] second step

[0083] The ground fine material is subjected to a stage of strong magnetic separation with a magnetic field strength of 900kA / m to obtain a stage of concentrated ore and a stage of tailings.

[0084] A stage of strong magnetic separation concentrate is subjected to a stage of weak magnetic separation, with a magnetic field strength of 300kA / m, to obtain a stage of weak magnetic separation concentrate and a stage of weak magnetic separation tailings. The first-stage weak magnetic separation concentrate is subjected to the second-stage weak magnetic separation concentration, and the magnetic field strength is 350kA / m, and the second-stage weak magnetic separation concentrate and the second-stage weak magnetic separation ta...

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Abstract

The invention discloses a method for comprehensively recovering iron, sulfur and titanium from complex polymetallic ore. The method comprises the following steps that firstly the complex polymetallic ore is ground; then strong magnetic separation, weak magnetic separation and scavenging are carried out to obtain iron ore concentrate and final strong magnetic scavenging tailings; the final strong magnetic scavenging tailings are mixed with oxalic acid, butyl xanthate and terpenic oil to perform sulfur flotation, and final sulfur concentrate and final sulfur flotation tailings are obtained; the final sulfur flotation tailings are reground, obtained reground fine materials are mixed with sodium fluosilicate, sodium silicate, citric acid, sodium hexametaphosphate, lead nitrate, benzohydroxamic acid and salicylhydroxamic acid for titanium flotation, one-time roughing and more than one-time concentration are adopted, and titanium concentrate and concentration flotation tailings of corresponding sections are obtained; and the obtained flotation titanium concentrate is mixed with hydrochloric acid and hydrofluoric acid for at least one time of acid leaching to obtain a titanium product. In this way, high-quality titanium concentrate can be obtained, and meanwhile, valuable components of iron and sulfur are effectively recycled, so that resource utilization of titanium-containing polymetallic ore is achieved.

Description

technical field [0001] The invention belongs to the field of ore dressing, and in particular relates to a method for comprehensively recovering iron, sulfur and titanium from complex polymetallic ores. Background technique [0002] Titanium is a very important element. Metal titanium and titanium alloys have excellent properties such as high melting point, non-magnetic, small thermal expansion coefficient, corrosion resistance, high temperature resistance, and good plasticity. Its titanium dioxide products are widely used in military aviation, aerospace, and navigation. , machinery, chemical industry, seawater desalination fields. Because titanium is relatively dispersed in nature, it is difficult to extract. [0003] Since titanium-containing ores often contain valuable components such as iron and sulfur, the current technology mainly considers the recovery of titanium, and pays little attention to the recovery of the associated valuable elements iron and sulfur, resulting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/00B03B1/00
CPCB03B9/00B03B1/00Y02P10/20
Inventor 黄红军刘芳芳舒有顺王盼彭姣于俊杰
Owner CENT SOUTH UNIV
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