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Method for comprehensive utilization of titanium concentrate

A titanium concentrate, a comprehensive technology, applied in the field of comprehensive utilization of titanium concentrate, can solve the problems of many impurities, waste, low-grade titanium-rich materials, etc., and achieve high quality, significant economic and social value, good economic benefits and application foreground effect

Active Publication Date: 2018-12-18
HEBEI IRON AND STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are many existing methods for preparing titanium-rich materials, but there are generally problems such as low grade and high impurities of titanium-rich materials, which limit its further application.
In addition, most of the other products obtained in the preparation process of titanium-rich materials are wasted as waste, causing double pressure on economy and environmental protection.

Method used

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  • Method for comprehensive utilization of titanium concentrate
  • Method for comprehensive utilization of titanium concentrate

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Such as figure 1 As shown, the present embodiment prepares the titanium-rich material applicable to the titanium-rich material of the boiling chlorination method according to the following method:

[0049] (1) Take 10g titanium concentrate, grind it to pass through -80 mesh sieve, mix it with 1.79g graphite, 0.71g starch, 0.3g anhydrous sodium carbonate and 0.5ml water to make pellets;

[0050] (2) Place the obtained pellets in a rotary kiln, raise the temperature to 1000° C. to reduce the pellets for 5 hours, and quench the reduction product in water after the reaction to obtain a mixed material;

[0051] (3) The mixed material is crushed, and ball milled into a particle diameter of -200 mesh fine powder, magnetically separated under a magnetic field strength of 70mT to obtain a magnetic product and a non-magnetic product;

[0052] (4) The obtained magnetic product is used as a coolant for extracting vanadium from vanadium-containing molten iron; the magnetic product ...

Embodiment 2

[0055] (1) Take 10g of titanium concentrate, grind it to pass through a -200 mesh sieve, mix it with 2.24g of graphite, 0.37g of starch, 0.3g of anhydrous sodium carbonate and 0.6ml of water to make pellets;

[0056] (2) Place the obtained pellets in a rotary kiln, raise the temperature to 1250° C., and reduce the pellets for 4 hours. After the reaction is completed, the reduction product is cooled by water quenching to obtain a mixed material;

[0057] (3) The mixed material is crushed, and ball milled into a particle diameter of -200 mesh fine powder, magnetically separated under a magnetic field strength of 35mT to obtain a magnetic product and a non-magnetic product;

[0058] (4) The obtained magnetic product is used as a coolant for extracting vanadium from molten iron containing vanadium; the magnetic product is acid-leached at 60°C for 4 hours by hydrochloric acid with an initial concentration of 4mol / L, and the liquid-solid ratio of hydrochloric acid to non-magnetic pro...

Embodiment 3

[0061] (1) Take 10g of titanium concentrate, grind it to pass through a -120 mesh sieve, mix it with 3.36g of petroleum coke, 0.67g of starch, 0.1g of anhydrous sodium carbonate and 0.8ml of water to make pellets;

[0062] (2) Place the obtained pellets in a rotary kiln, raise the temperature to 1200° C. to reduce the pellets for 2 hours, and quench the reduction product in water after the reaction to obtain a mixed material;

[0063] (3) The mixed material is crushed, and ball milled into a particle diameter of -400 mesh fine powder, magnetically separated under a magnetic field strength of 100mT to obtain a magnetic product and a non-magnetic product;

[0064] (4) The obtained magnetic product is used as a coolant for extracting vanadium from molten iron containing vanadium; the magnetic product is acid-leached at 30° C. for 3 hours by hydrochloric acid with an initial concentration of 2mol / L, and the liquid-solid ratio of hydrochloric acid to non-magnetic product is 8:1, and...

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Abstract

The invention relates to a method for comprehensive utilization of titanium concentrate. The method for comprehensive utilization of titanium concentrate comprises the steps that the titanium concentrate and a reducing agent are mixed and then placed in a reduction furnace so as to be subjected to a reduction reaction after being heated, and a reduced product is water-quenched and cooled after thereaction is completed, so that a mixture is obtained; the mixture is crushed, ground and magnetically separated, so that a magnetic product and a non-magnetic product are obtained; and the non-magnetic product is soaked in acid, so that a titanium-rich material and leachate are obtained, and the titanium-rich material is used for preparing TiCl4 through a fluidizing chlorination method; and the obtained magnetic product is used as a cooling agent used for extracting vanadium from vanadium-containing molten iron. According to the method for comprehensive utilization of the titanium concentrate, comprehensive utilization of the titanium concentrate is achieved through high-temperature reduction of the titanium concentrate, water-quenching and cooling, magnetic separation and acid soaking, the quality of the titanium-rich material is high, and the grade of TiO2 reaches 80% or over; and the process equipment is simple and easy to operate, emission of three wastes is avoided in the whole process, cleanliness and environmental friendliness are achieved, and the method has good economic benefits and good application prospects.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a method for comprehensively utilizing titanium concentrate. Background technique [0002] Titanium-rich material generally refers to TiO 2 Titanium slag or artificial rutile with a content of not less than 75% is an important raw material for the production of high-grade rutile titanium dioxide and titanium sponge by the chloride method. Using titanium-rich materials as raw materials to produce titanium dioxide or titanium sponge has the advantages of less raw material consumption per unit product, simplified process flow, high equipment productivity, and less "three wastes" in the production process. [0003] 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 smelti...

Claims

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Application Information

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IPC IPC(8): C22B3/10C22B34/12C22B1/244C22B1/02C09K3/18C22B34/22
CPCC09K3/185C22B1/02C22B1/2406C22B1/244C22B3/10C22B34/1245C22B34/22
Inventor 周欣常福增李兰杰高明磊黄山珊刘静
Owner HEBEI IRON AND STEEL
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