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Method for separating V-Ti-Fe concentrate fines

A vanadium-titanium iron and fine powder technology, which is applied in the field of titanium and vanadium, and iron extraction, can solve the problems of no large-scale industrial application, and achieve the effects of easy production, energy saving and cost saving

Active Publication Date: 2009-03-18
BEIJING BOYUAN HENGSHENG HIGH TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] At present, there are no reports of large-scale industrial applications of these methods

Method used

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  • Method for separating V-Ti-Fe concentrate fines
  • Method for separating V-Ti-Fe concentrate fines
  • Method for separating V-Ti-Fe concentrate fines

Examples

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Embodiment Construction

[0042] The basic content of the present invention will be described below in conjunction with specific embodiments. The described embodiments are for better illustrating the basic content of the present invention, and should not be construed as limiting the claims of the present invention.

[0043] Embodiment 1 is to fully mix a small amount (0.01% to 0.1% of the total mass) of organic molecular binder and vanadium-titanium-iron fine powder, and form it into vanadium-titanium-iron fine powder pellets through pelletizing machine. The pellets are directly sent to the reduction process, and are directly contacted with a gas or liquid reducing agent for reduction, and the reduction temperature is not less than 500°C; the reduction device in the reduction process can be a continuous feeding kiln (including rotary kiln, tunnel kiln) and / or furnace (including rotary hearth furnace, electric arc furnace, submerged arc furnace), etc.; the gas reducing agent can be heated before entering...

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Abstract

The invention provides a method for separating vanadium-titanium iron fine powder, which comprises the following steps that the vanadium-titanium iron fine powder is sufficiently reduced by a reducing agent under a condition of not less than 500 DEG C, and the reduced vanadium-titanium iron fine powder is grinded and graded; the graded vanadium-titanium iron fine powder is subjected to weak magnetic separation or medium strong magnetic separation, and the magnetic separation object is of high-purity reduced iron powder; the remainders which are subjected to the weak magnetic separation or medium strong magnetic separation are subjected to high-gradient strong magnetic separation; the high-gradient strong magnetic separation object is of titanium dioxide (rutile), and the remainders which are subjected to the high-gradient strong magnetic separation are of high-grade vanadium slag which can be used as raw materials to produce vanadium products; or the remainders which are subjected to the weak magnetic separation or medium strong magnetic separation can also be mixed, roasted and immersed with sodium carbonate, the immersing liquid is acidified by sulfur to produce khaki or read and yellow sedimentation; and the sedimentation is filtered and calcined to obtain vanadium pentoxide products. The method has the characteristics of completely, effectively and economically separating the vanadium-titanium iron fine powder into high-purity reduced iron powder, titanium dioxide and vanadium pentoxide, thereby providing a feasible way for comprehensive utilization of the vanadium-titanium iron fine powder.

Description

technical field [0001] The invention relates to a method for extracting iron, titanium and vanadium from vanadium-titanium iron fine powder, belonging to the technical field of metallurgy and chemical industry. Background technique [0002] So far, countries all over the world have done a lot of research on the separation of various types of ferro-vanadium, ferro-titanium and vanadium-titanite, and achieved some scientific achievements. Since various types of ferrovanadium, ferrotitanium and vanadium-titanium iron ore have been found in the southwest, northeast and Hebei Chengde regions of my country, because the refined iron powder obtained after such iron ore is processed contains a large amount of titanium and a small amount of vanadium (ie vanadium-titanium ferrofine powder), which cannot be directly used in ironmaking or steelmaking. Therefore, some iron and steel enterprises, metallurgical research units and individuals in my country have done a lot of scientific resea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B34/22B22F9/20C22B1/244B03C1/02C01G31/02
CPCY02P10/20
Inventor 魏雄辉张凌伟户春张鹏燕王晋菲高道龙邹川万明金蒋俊华李祥斌
Owner BEIJING BOYUAN HENGSHENG HIGH TECH
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