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Production method of rich-titanium material

A production method and titanium-rich material technology, applied in chemical instruments and methods, titanium dioxide, titanium oxide/hydroxide, etc., can solve problems such as pelletizing and briquetting, and achieve improved metallization rate, stable furnace conditions, and energy consumption Reduced effect

Active Publication Date: 2014-12-24
LOMON BILLIONS GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem that the pre-reduction stage of titanium concentrate needs to be pelletized and compacted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1 ton of titanium concentrate, coal powder and stone powder are mixed and added from the tail of the rotary kiln for calcination. At the same time, during the calcination process, a reducing dose of coal powder is sprayed into the coal spray gun from the kiln head for pre-reduction. At the same time, the kiln head and kiln The air is supplemented by the body, the calcination temperature of the rotary kiln is controlled at 1000-1200 ℃, and the calcination time is 6 hours. After testing, the metallization rate of the reduced ilmenite is 93%. Then the reduced ilmenite is subjected to magnetic separation, reduction, granulation, and product classification to obtain titanium-rich materials of different grades.

Embodiment 2

[0028] 1 ton of titanium concentrate, coal powder and stone powder are mixed and added from the tail of the rotary kiln for calcination. At the same time, during the calcination process, a reducing dose of coal powder is sprayed into the coal spray gun from the kiln head for pre-reduction. At the same time, the kiln head and kiln The air is supplied by the body, the calcination temperature of the rotary kiln is controlled at 1000-1200 ℃, and the calcination time is 3 hours. After testing, the metallization rate of the reduced ilmenite is 95%. Then the reduced ilmenite is subjected to magnetic separation, reduction, granulation, and product classification to obtain titanium-rich materials of different grades.

Embodiment 3

[0030] 1 ton of titanium concentrate, coal powder and stone powder are mixed and added from the tail of the rotary kiln for calcination. At the same time, during the calcination process, a reducing dose of coal powder is sprayed into the coal spray gun from the kiln head for pre-reduction. At the same time, the kiln head and kiln The air is supplemented by the body, the calcination temperature of the rotary kiln is controlled at 1000-1200 ℃, and the calcination time is 12 hours. After testing, the metallization rate of the reduced ilmenite is 91%. Then the reduced ilmenite is subjected to magnetic separation, reduction, granulation, and product classification to obtain titanium-rich materials of different particle size grades.

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Abstract

The invention relates to a production method of a rich-titanium material. The production method comprises the following steps: pre-oxidation, pre-reduction, multistage magnetic separation, airtight furnace smelting titanium slag granulation, and finished product processing and grading, wherein the pre-oxidation and the pre-reduction are carried in the same rotary kiln. According to the invention, the process of titanium concentrate-rotary kiln pre-reduction-airtight electric furnace smelting is adopted for the first time and the process of bonding and pelletizing of the titanium concentrate is omitted; besides, the production method of rich-titanium material is simple in used equipment, easy to operate, short in flow process and low in reduction temperature; high metallization ratio can be obtained; consequently, the energy consumption of the electric furnace during smelting is greatly reduced.

Description

technical field [0001] The invention relates to a method for producing titanium-rich materials, which belongs to the field of titanium dioxide production. Background technique [0002] There are many preparation methods for titanium-rich materials, which can be divided into fire process and wet process according to the production process. Fire process includes electric furnace smelting method, selective chlorination method, plasma smelting method, etc. Wet process includes partial reduction-hydrochloric acid leaching method, partial reduction-sulfuric acid leaching method, full reduction-corrosion method, etc. The electric furnace smelting method is simple and reliable, and can obtain two products of titanium-rich material and pig iron block at the same time, but the power consumption is large, and it is only used in areas with sufficient electricity. The smelting process is mainly to separate and remove iron, and the ability to remove non-ferrous impurities is poor. Due to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B34/12C22B1/02C22B5/10B03C1/015C01G23/047
Inventor 许刚王学堂陈建立张立东张照杰于成如董芳芳卢伟伟褚成文赵江伟王小海郜学云
Owner LOMON BILLIONS GRP CO LTD
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