Beneficiation method for ilmenite

A beneficiation method and ilmenite technology, which is applied in the beneficiation of ilmenite and non-ferrous metals, can solve the problems of failing to meet the product quality standard and low grade of titanium concentrate, and achieve good selectivity and good beneficiation indicators , Save crushing energy consumption and media consumption

Inactive Publication Date: 2017-05-31
SHENYANG RES INST OF NONFERROUS METALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The specific gravity, magnetism and buoyancy of hematite and ilmenite in the ore are similar, and a considerable part of it has a fine-grained lattice structure. Quality Standard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The processed ore raw ore contains TiO 2 15.22%. Tailings containing TiO in iron beneficiation tailings after crushing by high pressure roller mill 2 13.78%, after grinding to P80 0.140mm, go through strong magnetic separation (magnetic strength 0.7T) to obtain strong magnetic concentrate; after grinding strong magnetic concentrate to P80 0.070mm, after desulfurization, use SYR3 as ilmenite collector , after one roughing, four times of beneficiation, and one sweeping, the titanium concentrate containing TiO 2 40.11%; acid leaching the titanium concentrate obtained by flotation, using 10% sulfuric acid as the leaching agent, stirring and leaching for 3 hours at 80-85°C, with a liquid-solid ratio of 7:1, and filtering and washing for 3 times. Get TiO 2 Titanium concentrate with a content of 45.21%.

Embodiment 2

[0030] The processed ore raw ore contains TiO 2 15.18%. Tailings containing TiO in iron beneficiation tailings after crushing by high pressure roller mill 2 13.49%, after grinding to P80 0.140mm, go through strong magnetic separation (magnetic strength 0.7T) to obtain strong magnetic concentrate; after grinding strong magnetic concentrate to P80 0.070mm, after desulfurization, use SYR3 as ilmenite collector , after one roughing, four times of beneficiation, and one sweeping, the titanium concentrate containing TiO 2 40.87%; acid leaching the titanium concentrate obtained by flotation, using 10% sulfuric acid as the leaching agent, stirring and leaching for 3 hours at 80-85°C, with a liquid-solid ratio of 7:1, and filtering and washing for 3 times. Get TiO 2 Titanium concentrate with a content of 45.19%.

Embodiment 3

[0032] The processed ore raw ore contains TiO 2 15.24%. Tailings containing TiO in iron beneficiation tailings after crushing by high pressure roller mill 2 13.88%, after grinding to P80 0.140mm, strong magnetic concentrate is obtained through strong magnetic separation (magnetic strength 0.7T); strong magnetic concentrate is ground to P80 0.070mm, after desulfurization, SYR3 is used to collect ilmenite, After one roughing, four times of beneficiation, and one sweeping, the titanium concentrate containing TiO 2 40.08%; acid leaching the titanium concentrate obtained by flotation, using 10% sulfuric acid as the leaching agent, stirring and leaching for 3 hours at 80-85°C and a liquid-solid ratio of 7:1, and filtering and washing for 3 times. Get TiO 2 Titanium concentrate with a content of 45.20%.

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PUM

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Abstract

A beneficiation method for ilmenite is characterized by comprising the following steps that firstly, a high-pressure roller mill conducts pulverized grinding to -3 mm, and iron selecting is conducted; secondly, iron selecting tailings are ground to P80 0.140 mm; thirdly, strong magnetism concentrates are obtained through strong magnetic separation enrichment, and the magnetic field intensity ranges from 0.6 T to 0.7 T; fourthly, the strong magnetism concentrates are ground to P80 0.070 mm; fifthly, after being subjected to desulfuration, the strong magnetism concentrates are subjected to primary roughing, four-time fine selecting and primary scavenging, flotation titanium concentrates are obtained, and SYR3 is adopted as a collecting agent of the ilmenite; and sixthly, titanium concentrates obtained through flotation are subjected to acid leaching, final titanium concentrates are obtained, the immersion liquid is 10% sulfuric acid, the titanium concentrates obtained through flotation are subjected to acid leaching for 3 h at the temperature approximately ranging from 80 DEG C to 85 DEG C, the liquid-solid ratio is 7:1, the titanium concentrates are obtained through three times of filtering and washing, and the qualified titanium concentrates in which the content of TiO2 is larger than 45% are obtained.

Description

technical field [0001] The invention relates to a nonferrous metal beneficiation method, in particular to an ilmenite beneficiation method, and belongs to the technical field of nonferrous metal ore beneficiation. Background technique [0002] Titanium is an ideal metal material widely used in aerospace, weapons, ships and other technical fields. Ilmenite is the main mineral resource of titanium resources in the world, and its reserves are quite abundant. The beneficiation of ilmenite has a lot of research at home and abroad. According to the different properties of the ore, the following separation process is mainly used: gravity separation - magnetic separation process, gravity separation process, gravity separation - strong magnetic separation - electric separation Process, while fine-grained ilmenite usually adopts flotation process. [0003] A certain deposit in Africa has a large resource reserve, and the available ilmenite mineral content in the ore is relatively hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/08C22B34/12B02C21/00B02C23/14B03C1/00B03D1/00
CPCB02C21/00B02C23/14B03C1/00B03D1/00C22B3/08C22B34/1213Y02P10/20
Inventor 孟宪瑜陈新林李乔松高起鹏秦贵杰
Owner SHENYANG RES INST OF NONFERROUS METALS
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