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A method for recovering ilmenite from vanadium-titanium-magnetite iron beneficiation tailings

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

Active Publication Date: 2018-05-11
PANGANG GRP MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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-titanium-magnetite iron-dressing tailings in the prior art, and provides a new vanadium-titanium-magnetite iron-dressing tailings recovery The Ilmenite Method

Method used

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  • A method for recovering ilmenite from vanadium-titanium-magnetite iron beneficiation tailings
  • A method for recovering ilmenite from vanadium-titanium-magnetite iron beneficiation tailings
  • A method for recovering ilmenite from vanadium-titanium-magnetite iron beneficiation tailings

Examples

Experimental program
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Effect test

Embodiment 1

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

[0106] Table 1

[0107] component

TFe

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 dressing tailings is 50% by weight.

[0109] The specific magnetic susceptibility 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 titanium pyroxene, plagioclas...

Embodiment 2

[0120] The recovery of ilmenite is carried out according to the method of Example 1, except that, in step (2), a 0.11 mm high-frequency fine sieve is used instead of a 0.12 mm high-frequency fine sieve.

Embodiment 3

[0122] The recovery of ilmenite is carried out according to the method of Example 1, except that in step (4), a 0.22mm high-frequency fine sieve is used instead of a 0.25mm high-frequency fine sieve.

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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 tailings. Background technique [0002] Weak magnetic separation, strong magnetic separation, gravity separation, flotation, electric separation, etc. [0003] According to the actual production experience, the current classification before selection is not strict enough, and the recovery of ilmenite by gravity separation, electrical separation and flotation methods is low in efficiency and high in cost. The main reasons for this phenomenon may be as follows: On the one hand, when the classification methods such as inclined plate concentration classification or wind classification are used, the particle size distribution range of the classified products is wide, which leads to the fine-grained ilmenite and The recovery rate of coarse-grained ilmenite by flotation is low, and at the same time, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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