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Preparation method and device for reducing ilmenite

A technology for ilmenite and iron ore, which is applied in the field of chemical engineering and can solve the problems of many impurities such as coal and affecting the quality of reduced ilmenite.

Pending Publication Date: 2021-12-24
ENN SCI & TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the above reaction process, the direct contact reaction between coal and ilmenite will make the generated reduced ilmenite contain more impurities such as coal, which will affect the quality of the generated reduced ilmenite.

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  • Preparation method and device for reducing ilmenite
  • Preparation method and device for reducing ilmenite
  • Preparation method and device for reducing ilmenite

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[0037] In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0038] In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways than described here; obviously, the embodiments in the description are only some of the embodiments of the present disclosure, and Not all examples.

[0039] In the embodiments of the present disclosure, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present disclosure shall not be construed as being pr...

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Abstract

The invention provides a preparation method and device for reducing ilmenite, and relates to the technical field of chemical engineering. The preparation method for reducing the ilmenite comprises the following steps: raw material coal is input into a gasification furnace to be gasified to generate reducing gas, and the reducing gas is input into an oxidation furnace and a reduction furnace; the reducing gas input by the gasification furnace is combusted in the oxidation furnace to oxidize the ilmenite raw material to generate oxidized ilmenite, and the oxidized ilmenite is input into the reduction furnace; and in the reduction furnace, the oxidized ilmenite input by the oxidation furnace is reduced through the reducing gas input by the gasification furnace, so that the reduced ilmenite is generated. Therefore, the reduced ilmenite is prepared by replacing the raw material coal with the reducing gas and replacing the ilmenite raw material with the oxidized ilmenite, therefore, direct contact between the raw material coal and the ilmenite raw material is avoided, impurities in the generated reduced ilmenite are reduced, and the problem that the quality of the reduced ilmenite is poor is solved.

Description

technical field [0001] The disclosure relates to the technical field of chemical engineering, in particular to a preparation method and device for reducing ilmenite. Background technique [0002] Ilmenite, also known as titanomagnetite, is an oxide mineral of iron and titanium, the main component of which is FeTiO 3 , is the main ore for refining titanium and titanium dioxide. The reduced ilmenite produced after the reduction reaction of ilmenite has the advantages of good reducibility, stable and soft arc, and good slag coverage. It is the main raw material for titanium-calcium electrode materials. [0003] The traditional production process of reducing ilmenite mainly includes tunnel kiln and rotary kiln process. The main process is to add natural ilmenite and coal and other reducing agents into the kiln according to a certain proportion, so that the reduction reaction occurs under certain reaction conditions. The reduced ilmenite is obtained by magnetic separation. Howe...

Claims

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Application Information

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IPC IPC(8): C21B13/00C22B34/12C22B5/12
CPCC21B13/0073C21B13/0046C22B34/1227C22B5/12
Inventor 徐刚曾亮徐彬李海冰任文君
Owner ENN SCI & TECH DEV
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