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Environment-friendly method for titanium separation from iron tailings

An environment-friendly, tailings technology, applied in chemical instruments and methods, wet separation, solid separation, etc., can solve the problems of high cost, secondary pollution, low efficiency, etc., to improve titanium grade, reduce cost, and protect ecology environmental effects

Active Publication Date: 2019-04-12
PANZHIHUA UNIV
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the efficiency of the existing tailings beneficiation method is low, the cost is high, and it is easy to cause secondary pollution

Method used

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  • Environment-friendly method for titanium separation from iron tailings

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Embodiment 1

[0041] A titanium recovery test was carried out on an iron ore tailing in Panxi Hongge area. Through process mineralogy analysis and particle size analysis, it was concluded that the titanium content in the tailings reached more than 9%, the total iron content was about 19%, and phosphorus, sulfur The content is lower than the national standard for steelmaking and ironmaking, and the particle size of -0.074mm in the tailings accounts for about 20%, which belongs to coarse-grained minerals. Through XRD and optical microscope analysis, it is found that titanium mainly exists in ilmenite, titanomagnetite, magnesite In minerals such as slate, more than 70% of titanium is distributed in ilmenite, so the main object of titanium selection is ilmenite.

[0042] The specific tailings titanium selection method is as follows:

[0043] A. Add water to the above-mentioned iron-separation tailings to adjust it into a slurry with a concentration of 40%. Under the action of the pump, enter th...

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Abstract

The invention discloses an environment-friendly method for titanium separation from iron tailings, and belongs to the technical field of mineral processing. The method solves the problems of an existing tailing mineral processing method that efficiency is low, the cost is high, and secondary pollution is liable to occur. The environment-friendly method for titanium separation from the iron tailings comprises the following steps that the iron tailings are adjusted to ore pulp with concentration of 30-50%, tailing pulp is obtained after weak-magnetism tailing discharging, the tailing pulp is concentrated until the ore pulp concentration is 40-60%, a ball milling product is obtained by ore grinding, the ball milling product is subjected to hydraulic classification to obtain an overflow material and a bed charge, the concentration of the overflow material is adjusted to 35-50%, high gradient strong-magnetic titanium extraction is conducted to obtain secondary coarse concentrate, the secondary coarse concentrate is separated by a four-stage shaking table to obtain titanium concentrate, titanium middlings and tailings, the titanium middlings are subjected to high gradient strong-magnetictitanium extraction and one-stage shaking table separation, and titanium concentrate and tailings are obtained. No chemical reagent is adopted in the whole process according to the method, secondarypollution does not occur, solid-liquid waste secondary resource recovery and utilization is achieved, and the ecological environment is protected.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to an environment-friendly method for selecting iron and tailings and titanium. Background technique [0002] At present, there are a large number of patents on titanium selection on the market, mainly concentrated in Panzhihua Iron and Steel Group Corporation, some mineral processing plants and technical service companies in Yunnan and Xichang. Aiming at the separation of titanium from tailings, CN201610888960.5 discloses a method for gravity separation of titanium from tailings. The main technical process includes: A, the iron separation tailings slag with a particle size of -200 mesh accounting for 70% is mixed with water to a concentration of 30-200%. The 35% ore pulp enters the primary spiral chute under the action of the slurry pump, and the titanium-containing ore is initially separated by the action of the chute; B, the titanium-containing ore separate...

Claims

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Application Information

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IPC IPC(8): B03B9/06B03B7/00
CPCB03B7/00B03B9/06Y02W30/52
Inventor 何逵
Owner PANZHIHUA UNIV
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