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Method for producing titanium-rich material from titanium ore concentrate

A technology for titanium-rich material and titanium concentrate, applied in the field of metallurgy, can solve the problems of furnace lining production erosion, complicated operation, large grade fluctuation, etc., and achieve the effects of stable process parameter control, easy operation, and stable reduction degree.

Inactive Publication Date: 2009-05-20
攀枝花市尚亿科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-titanium slag is smelted in an electric furnace. The high-titanium slag is in contact with the lining of the electric furnace. The slag will corrode the lining during production, and impurities will enter the high-titanium slag, which will affect the product quality of the high-titanium slag.
And the operation is relatively complicated, and the operating parameters are prone to fluctuations, which affect the reduction degree of titanium concentrate, resulting in large fluctuations in the grade of titanium dioxide in titanium-rich materials, with a fluctuation range of 3%-5%.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Carry out ingredients according to Table 1, and mix well.

[0029] Table 1 Pellet ingredient list

[0030] serial number raw material name Particle size / mm Proportion / % 1 Titanium Concentrate ≤0.088 75 2 coke powder ≤0.1 19 3 sodium borate ≤0.1 3 4 Cellulose ≤0.1 2 5 Sodium silicate ≤0.1 1 6 water (additional) 7

[0031] Press the material into 15mm pellets, put the pellets into a special refractory tank, and put them into a tunnel kiln for reduction. The reduction temperature of the tunnel kiln is controlled at 1130°C, and the reduction time is controlled at 120 minutes.

[0032] After the pellets are naturally cooled, they are finely ground in a ball mill and separated by magnetic separation to separate iron powder and titanium-rich material. The recovery rate of iron powder is 91%, the grade of titanium dioxide in titanium-rich material is 78%, and the recovery rate of titanium is up to 93%.

[003...

Embodiment 2

[0035] Carry out batching according to Table 2, and mix evenly.

[0036] Table 2 Pellet ingredient list

[0037] serial number raw material name Particle size / mm Proportion / % 1 Titanium Concentrate ≤0.088 77 2 coke powder ≤0.1 17 3 sodium borate ≤0.1 2 4 Cellulose ≤0.1 2 5 Sodium silicate ≤0.1 2 6 water (additional) 7

[0038] Press the material into 18mm pellets, put the pellets into a special refractory tank, and put them into a tunnel kiln for reduction. The reduction temperature of the tunnel kiln is controlled at 1150°C, and the reduction time is controlled at 110 minutes.

[0039] After the pellets are naturally cooled, they are finely ground in a ball mill and separated by magnetic separation to separate iron powder and titanium-rich material. The recovery rate of iron powder is 92%, the grade of titanium in titanium-rich material is 77%, and the recovery rate of titanium reaches 91%.

[0040] The sep...

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Abstract

The invention relates to a method for producing a rich-titanium material byusing ilmenite concentrate, belonging to the metallurgical field. The technical problem to be solved by the invention is as follows: a production method of the rich-titanium material in which the grade of the titanium is stable is provided. The technical proposal of the invention is as follows: ilmenite concentrate, coke, sodium borate, sodium silicate, cellulose and water are mixed pro rata and then pelletized; a tunnel kiln is adopted to carry out reduction to pellets; the reduction product is processed by crushing, grinding and magnetic separation so as to separate the iron powder and the rich-titanium material. The invention adopts the tunnel kiln to carry out reduction, which is easy to be operated; the technique parameter control is stable, the reduction degree of the ilmenite concentrate is stable and the grade of titanium dioxide does not generate larger fluctuation; the range of fluctuation of the grade of the titanium dioxide is reduced to be 1 percent to 2 percent from 3 percent to 5 percent reduced by an electric furnace; and simultaneously the impurities are avoided from entering the products.

Description

technical field [0001] The invention relates to a method for producing titanium-rich material by utilizing titanium concentrate, belonging to the field of metallurgy. technical background [0002] Titanium concentrate is an important raw material for the production of titanium metal and titanium dioxide. Panzhihua is rich in titanium resources, stable in composition and good in acid solubility. When Panzhihua titanium concentrate is directly used to produce metal titanium and titanium dioxide, due to its low titanium content (~47%) and high content of non-ferrous impurities, it results in high transportation costs, low production efficiency, large discharge of "three wastes" and production high cost issues. In order to rationally and scientifically utilize the titanium concentrate in Panzhihua, it is advisable to use pre-enriched high-grade titanium-rich materials for utilization. [0003] The production methods of titanium-rich materials are mainly divided into two catego...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/212
Inventor 杨绍利李亮张树立方民宪马兰
Owner 攀枝花市尚亿科技有限责任公司
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