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A kind of beneficiation method of olivine pyroxene type ilmenite

A beneficiation method and ilmenite technology, applied in chemical instruments and methods, wet separation, solid separation, etc., can solve the problems of low raw ore, unfavorable flotation, unsatisfactory titanium concentrate grade and recovery rate, etc. Achieve the effect of reducing grade and improving grade

Active Publication Date: 2022-05-24
PANGANG GRP MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if this process is used to recover olivine-type ilmenite, the floating ore produced by multi-stage strong magnetic field is very low, and only TiO can be obtained. 2 Floating raw ore with a grade of 10% to 16%, such a low flotation feed is very unfavorable for flotation
Ultimately, the grade and recovery rate of titanium concentrate obtained are not ideal, and the cost of flotation reagents is high, which cannot achieve the purpose of economical and efficient utilization of titanium resources

Method used

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  • A kind of beneficiation method of olivine pyroxene type ilmenite
  • A kind of beneficiation method of olivine pyroxene type ilmenite
  • A kind of beneficiation method of olivine pyroxene type ilmenite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] The first-stage iron beneficiation tailings (tailings of the first-stage grinding and magnetic separation in the iron beneficiation process) of the olivine-type ilmenite ore are treated with a slag screen with a diameter of 3 mm, and then the coarse-grained first-stage iron removal is carried out, and the magnetic field strength is 2000 o ster, get a first-stage iron removal concentrate and a first-stage iron removal tailings;

[0079] The first stage of iron removal tailings is subjected to a stage of strong magnetic roughing, the magnetic field strength is 7000 oersted, the rotating speed is 3r / min, the pulsation frequency is 300 times / min, and the stroke is 35mm, to obtain a stage of strong magnetic roughing concentrate and a stage of strong magnetic roughing. Magnetic roughing tailings;

[0080] The first stage of strong magnetic roughing tailings is subjected to a stage of strong magnetic sweeping (magnetic field strength 5000 oersteds, swivel speed 3r / min, pulsati...

Embodiment 2

[0129] The first-stage iron beneficiation tailings (tailings of the first-stage grinding and magnetic separation in the iron beneficiation process) of the olivine-type ilmenite ore are treated with a slag screen with a diameter of 3 mm, and then the coarse-grained first-stage iron removal is carried out. The magnetic field strength is 1000 o ster, get a first-stage iron removal concentrate and a first-stage iron removal tailings;

[0130] The first stage of iron removal tailings is subjected to a stage of strong magnetic roughing, the magnetic field strength is 5000 oersted, the rotating speed is 3r / min, the pulsation frequency is 300 times / min, and the stroke is 35mm to obtain a stage of strong magnetic roughing concentrate and a stage of strong magnetic roughing. Magnetic roughing tailings;

[0131] The first stage of strong magnetic roughing tailings is subjected to a stage of strong magnetic sweeping (magnetic field strength 3000 oersteds, swivel speed 3r / min, pulsation fr...

Embodiment 3

[0156] The first-stage iron beneficiation tailings (tailings of the first-stage grinding and magnetic separation in the iron beneficiation process) of the olivine-type ilmenite ore are treated with a slag screen with a diameter of 3 mm, and then the coarse-grained first-stage iron removal is carried out. The magnetic field strength is 3000 o'clock. ster, get a first-stage iron removal concentrate and a first-stage iron removal tailings;

[0157] The first stage of iron removal tailings is subjected to a stage of strong magnetic roughing, the magnetic field strength is 10,000 Oersted, the rotating speed is 3r / min, the pulsation frequency is 300 times / min, and the stroke is 35mm to obtain a stage of strong magnetic roughing concentrate and a stage of strong magnetic separation. Magnetic roughing tailings;

[0158] The first stage of strong magnetic roughing tailings is subjected to a stage of strong magnetic sweep selection (magnetic field strength 8000 oersted, swivel rotation ...

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Abstract

The invention provides a beneficiation method of olivine pyroxenite-type ilmenite. Compared with the prior art, the present invention sets a classification operation after the first section of iron-selection tailings and a section of strong magnetic concentrate to ensure that the first section of strong magnetic concentrate Most of the fine-grained materials do not enter the coarse-grained gravity separation, which can reduce the grade of coarse-grained gravity tailings. At the same time, most of the fine-grained materials in a section of strong magnetic concentrate enter the fine-grained separation system, here Adding gravity separation can effectively remove interfering minerals such as olivine which are similar in magnetic properties to ilmenite, and can also improve the enrichment grade of ilmenite.

Description

technical field [0001] The invention belongs to the technical field of metal recovery, and in particular relates to a beneficiation method for olivine-type ilmenite. Background technique [0002] China's titanium resources rank first in the world, with reserves accounting for 40% of the world's reserves, of which more than 90% are in the Panxi region. However, the titanium resources in the Panxi area are mainly rock-type vanadium-titanium-magnetite, and the content of calcium and magnesium is high, which belongs to the ilmenite which is difficult to develop and utilize. In particular, the content of pyroxene minerals in the uvite type vanadium-titanium magnetite is 30% higher than that of the gabbro type, and the content of olivine minerals is 10-30% higher than that of the gabbro type. Iron ore is more difficult to recover due to the influence of olivine. [0003] At present, the process of "grading + two-stage strong magnetic + flotation" is mainly used for ilmenite reco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03C1/02B03B1/00B03B7/00B03B9/00
CPCB03C1/02B03B1/00B03B7/00B03B9/00
Inventor 王勇刘志雄王洪彬张国华张春吴雪红陈碧
Owner PANGANG GRP MINING