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Mineral processing method of ilmenite

A beneficiation method and ilmenite technology, applied in chemical instruments and methods, flotation, magnetic separation, etc., can solve the problems of high energy consumption, unsuitability for industrial production, high equipment requirements, etc., achieve high enrichment ratio and improve quality , The effect of simple process

Inactive Publication Date: 2015-03-25
TIANJIN KAITELONG WELDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN103691550A discloses a beneficiation method of ilmenite, including crushing, alkali leaching, filtration, magnetic separation and other steps. This method can separate ilmenite into titanium concentrate and iron concentrate, but it will produce a large amount of alkali Liquid, and the high temperature and high pressure conditions have high requirements for equipment and high energy consumption, so it is not suitable for industrial production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) TiO 2 The ilmenite raw ore with a content of 20% is added to a ball mill and crushed into a powder material of 200-300 mesh;

[0021] (2) add No. 2 oil of floating sulfur agent in the powdery material, percentage by weight 2%, carry out sulfur flotation, obtain ilmenite coarse ore slurry and thick sulfur concentrate, sulfur content in ilmenite after sulfur flotation The content is less than 0.3%;

[0022] (3) The ilmenite coarse ore slurry enters the thickener to concentrate, and the underflow slurry is obtained at the bottom of the thickening funnel;

[0023] (4) Underflow ore slurry is carried out deironing process, obtains crude iron concentrate and iron-removing titanium concentrate;

[0024] (5) Carry out a stage of strong magnetic separation for removing iron and titanium concentrate, the current of the first stage of strong magnetic separation is 500-700A, the magnetic field strength is 7000-10000 gauss, and a large amount of gangue is removed to obtain sub...

Embodiment 2

[0029] (1) TiO 2 The ilmenite raw ore with a content of 30% is added to a ball mill and crushed into a powder material of 200-300 mesh;

[0030] (2) add No. 2 oil of floating sulfur agent in the powdery material, percentage by weight 2%, carry out sulfur flotation, obtain ilmenite coarse ore slurry and thick sulfur concentrate, sulfur content in ilmenite after sulfur flotation The content is less than 0.3%;

[0031] (3) The ilmenite coarse ore slurry enters the thickener to concentrate, and the underflow slurry is obtained at the bottom of the thickening funnel;

[0032] (4) Underflow ore slurry is carried out deironing process, obtains crude iron concentrate and iron-removing titanium concentrate;

[0033] (5) Carry out a stage of strong magnetic separation for removing iron and titanium concentrate, the current of the first stage of strong magnetic separation is 500-700A, the magnetic field strength is 7000-10000 gauss, and a large amount of gangue is removed to obtain sub...

Embodiment 3

[0038] (1) TiO 2 The ilmenite raw ore with a content of 37% is added to a ball mill and crushed into a powder material of 200-300 mesh;

[0039] (2) add No. 2 oil of floating sulfur agent in the powdery material, percentage by weight 2%, carry out sulfur flotation, obtain ilmenite coarse ore slurry and thick sulfur concentrate, sulfur content in ilmenite after sulfur flotation The content is less than 0.3%;

[0040] (3) The ilmenite coarse ore slurry enters the thickener to concentrate, and the underflow slurry is obtained at the bottom of the thickening funnel;

[0041] (4) Underflow ore slurry is carried out deironing process, obtains crude iron concentrate and iron-removing titanium concentrate;

[0042] (5) Carry out a stage of strong magnetic separation for removing iron and titanium concentrate, the current of the first stage of strong magnetic separation is 500-700A, the magnetic field strength is 7000-10000 gauss, and a large amount of gangue is removed to obtain sub...

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Abstract

The invention aims to provide a mineral processing method of ilmenite, which improves the ilmenite recovery ratio when ensuring the ilmenite concentrate quality. The mineral processing method of the ilmenite comprises the following steps: crushing a raw material to powder materials of 200-300 meshes; adding a sulfur floating agent to the powder materials for sulfur floatation; concentrating by utilizing a thickener to obtain base flow ore pulp; removing iron from the base flow ore pulp; performing a first-section strong magnetic separation, and a second-section strong magnetic separation; scavenging tailings after being subjected to strong magnetic separation twice, recovering the ilmenite to perform the strong magnetic separation. The mineral processing method of the ilmenite has the beneficial effects that the sulfur floatation is firstly performed, sulfur in the ilmenite is enriched and floated, so as to avoid oxidation interference of the sulfur in the subsequence steps; sulfur-floated ilmenite crude ore pulp is concentrated by the thickener to obtain crude ore; more nonmagnetic gangues can be removed through strong magnetic separation twice, so that the ilmenite quality is improved; simultaneously, the tailings are scavenged, recycled and circulated, so that the recovery ratio of the ilmenite is improved; the whole process flow is simple, the operability is high, and the enrichment proportion is high.

Description

technical field [0001] The invention relates to the field of separation of solid materials, in particular to a beneficiation method of ilmenite. Background technique [0002] my country's ilmenite reserves are very rich, and the ilmenite with high iron content enters the iron concentrate. During the ironmaking process, due to the vitreous body, the TiO 2 It loses its activity and cannot be recycled, resulting in resource loss, and ilmenite with high titanium content enters the titanium concentrate. In the process of further refining the titanium concentrate to produce titanium dioxide, the presence of iron will cause a decline in product quality and waste resource. Separation of ferro-titanium from the source is very important for rational and effective utilization of ilmenite. Chinese patent CN103691550A discloses a beneficiation method of ilmenite, including crushing, alkali leaching, filtration, magnetic separation and other steps. This method can separate ilmenite into...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C1/30B03D1/012
Inventor 曹洪清任小弟张树芳曹福利刘德春
Owner TIANJIN KAITELONG WELDING MATERIAL
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