Method for recycling ilmenite from vanadium titano-magnetite iron dressing tailings

A technology of vanadium-titanium magnetite and ilmenite, which is applied in the field of recovery of ilmenite from vanadium-titanium magnetite iron beneficiation tailings, which can solve the problems of high cost and low recovery rate

Active Publication Date: 2016-12-07
PANGANG GRP MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention overcomes the defects of low recovery rate and high cost in the method for recovering ilmenite from vanadium-tit

Method used

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  • Method for recycling ilmenite from vanadium titano-magnetite iron dressing tailings
  • Method for recycling ilmenite from vanadium titano-magnetite iron dressing tailings
  • Method for recycling ilmenite from vanadium titano-magnetite iron dressing tailings

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Experimental program
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Embodiment 1

[0105] What is used is the vanadium-titanium-magnetite iron beneficiation tailings (hereinafter referred to as the first raw material ore) taken from the Panzhihua mining area. The main components of the first raw material ore obtained by chemical element analysis (titration) and each group Min content (100wt%) as shown in Table 1. Wherein, TFe represents the total content of iron element.

[0106] Table 1

[0107] components

TF

TiO 2

S

Content (wt%)

14

9.75

0.54

[0108] In addition, based on the total amount of the first raw material ore, the content of minerals with a particle size of 0.075 mm or more in the iron beneficiation tailings is 50% by weight.

[0109] The specific magnetic susceptibility coefficient of the main gangue in the first raw material ore is 100×10 -6 cm 3 / g, the specific magnetic susceptibility of ilmenite is 256×10 -6 cm 3 / g, where the main gangues include titanopyroxene, plagioclase and titanohornblen...

Embodiment 2

[0120] Carry out the recovery of ilmenite according to the method of embodiment 1, difference is, in step (2), adopt the high frequency fine screen of 0.11mm to replace the high frequency fine screen of 0.12mm.

Embodiment 3

[0122] Carry out the recovery of ilmenite according to the method of embodiment 1, difference is, in step (4), adopt the high frequency fine screen of 0.22mm to replace the high frequency fine screen of 0.25mm.

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Abstract

The invention discloses a method for recycling ilmenite from vanadium titano-magnetite iron dressing tailings. The method comprises the steps that the specific susceptibility of main gangue in the iron dressing tailings, the specific susceptibility of the ilmenite in the iron dressing tailings and the content of TiO2 in the iron dressing tailings are determined; when the iron dressing tailings meet the condition 1, the iron dressing tailings are subjected to first-section strong magnetic separation, first-section strong magnetism concentrates are subjected to one-time or multi-time reselection, and gravity concentrates are obtained; the gravity concentrates are subjected to first-time flotation and one-time or multi-time electric separation, and ilmenite concentrates are obtained, wherein the condition 1 can be shown in the formula: X1>(X2*60%), the total amount of the iron dressing tailings serves as a standard, the content of the TiO2 in the iron dressing tailings is lower than 5 wt%, X1 is the specific susceptibility value of the main gangue in the iron dressing tailings, and X2 is the specific susceptibility value of the ilmenite in the iron dressing tailings; and otherwise, the iron dressing tailings are subjected to a strict granularity classification method. By mean of the method, the production cost of the ilmenite is reduced, and the grade of the TiO2 of selected raw ore obtained after electric separation and flotation is improved.

Description

technical field [0001] The invention relates to the field of mineral processing and production, in particular to a method for recovering ilmenite from vanadium-titanium magnetite iron beneficiation tailings. Background technique [0002] In the beneficiation process of vanadium-titanium-magnetite iron beneficiation tailings recovery ilmenite, weak magnetic separation, strong magnetic separation, gravity separation, flotation, electric separation and other methods are widely used. [0003] According to the actual production experience, the current classification before selection is not strict enough, and the recovery efficiency of ilmenite by gravity separation, electric separation and flotation is low and the cost is high. The main reasons for this phenomenon may have the following aspects: On the one hand, when adopting grading methods such as inclined plate concentration grading or wind grading, the size distribution range of the grading products is wide, resulting in fine...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03B9/06
CPCB03B7/00B03B9/06Y02W30/52
Inventor 王军攀周川王志杰刘胜华李玉青
Owner PANGANG GRP MINING
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