Method for producing titanium-rich material from titanium ore concentrate

Abstract

The invention relates to a method for producing a rich-titanium material by using 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 using titanium concentrate, and belongs to the field of metallurgy. technical background [0002] Titanium concentrate is an important raw material for the production of metallic titanium and titanium dioxide. Panzhihua has rich titanium resources, stable ingredients and good acid solubility. When Panzhihua titanium concentrate is directly used to produce metallic titanium and titanium dioxide, due to its low titanium content (~47%) and high content of non-ferrous impurities, it causes high transportation costs, low production efficiency, large "three wastes" emissions and production Problems such as high cost. In order to make rational and scientific use of Panzhihua's titanium concentrate, it is advisable to use pre-enriched high-grade titanium-rich materials for reuse. [0003] The production methods of titanium-rich materials are divided into two categories, dry and wet. The use ...

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%