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A kind of preparation method of ferro-titanium alloy

A technology of titanium-iron alloy and vanadium-titanium magnetite is applied in the field of preparation of titanium-iron alloy, which can solve the problems of large consumption of aluminum and high production cost, and achieve the effect of reducing consumption and production cost.

Active Publication Date: 2019-01-18
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a preparation method of ferro-titanium alloy. By using vanadium-titanium magnetite and titanium concentrate as raw materials, adjusting the material ratio, carbon-thermal reaction temperature and time, and preparing multi-level ferro-titanium alloy, it solves the problem of titanium in the prior art. The problem of high aluminum consumption and high production cost in ferroalloy production

Method used

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  • A kind of preparation method of ferro-titanium alloy
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Embodiment 1

[0021] The preparation method of the ferrotitanium alloy provided by the embodiment of the present invention 1 comprises the following steps:

[0022] (1) Carbothermal reaction

[0023] The vanadium-titanium magnetite is used as the raw material, and the coal powder is used as the reducing agent for mixing. Among them, the vanadium-titanium magnetite and coal powder are mixed according to the carbon ratio of 0.8, and then 1% bentonite is added to the mixture. After that, mix well to form a mixture, mix the mixture with water and make pellets, wherein the mass ratio of the mixture to water is 1:0.08, put the formed wet pellets into a drying oven at 105°C for constant temperature drying, and the drying time is 5 hours. Put the dried balls obtained after drying into a heating furnace for constant temperature heating, the heating temperature is 1200°C, and the heating time is 10 minutes. The heated dry balls are taken out and airtightly cooled, and the cooled dry balls are crushed...

Embodiment 2

[0039] The preparation method of the ferrotitanium alloy provided by the embodiment of the present invention 2 comprises the following steps:

[0040] (1) Carbothermal reaction

[0041] The vanadium-titanium magnetite is used as the raw material, and the coal powder is used as the reducing agent for mixing. Among them, the vanadium-titanium magnetite and coal powder are mixed according to the carbon ratio of 0.8, and then 1% bentonite is added to the mixture. After that, mix well to form a mixture, mix the mixture with water and make pellets, wherein the mass ratio of the mixture to water is 1:0.08, put the formed wet pellets into a drying oven at 105°C for constant temperature drying, and the drying time is 5 hours. Put the dried balls obtained after drying into a heating furnace for constant temperature heating, the heating temperature is 1200°C, and the heating time is 10 minutes. The heated dry balls are taken out and airtightly cooled, and the cooled dry balls are crushed...

Embodiment 3

[0052] The preparation method of the ferrotitanium alloy provided by the embodiment of the present invention 3 comprises the following steps:

[0053] (1) Carbothermal reaction

[0054] The vanadium-titanium magnetite is used as the raw material, and the coal powder is used as the reducing agent for mixing. Among them, the vanadium-titanium magnetite and coal powder are mixed according to the carbon ratio of 0.8, and then 1% bentonite is added to the mixture. After that, mix well to form a mixture, mix the mixture with water and make pellets, wherein the mass ratio of the mixture to water is 1:0.08, put the formed wet pellets into a drying oven at 105°C for constant temperature drying, and the drying time is 5 hours. Put the dried balls obtained after drying into a heating furnace for constant temperature heating, the heating temperature is 1200°C, and the heating time is 10 minutes. The heated dry balls are taken out and airtightly cooled, and the cooled dry balls are crushed...

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Abstract

The invention discloses a preparation method of titanium-iron alloy and relates to the technical field of metal smelting. The method includes: carbothermal reaction, mixing with vanadium-titanium magnetite as raw material and coal powder as reducing agent, adding 1% bentonite water by mass of the mixture to the mixture, mixing and forming balls, and drying the formed wet balls. After heating at a constant temperature, the heated dry balls are airtightly cooled, crushed and sieved to obtain pre-reduced mineral powder; for the aluminothermic reduction reaction, according to the mass fraction, 40-42% pre-reduced mineral powder, 21-23% Al powder, 24 -26% titanium dioxide, 5-6% CaO and 7-9% KClO3 are mixed evenly and then ignited with a magnesium strip to perform a self-propagating aluminothermic reduction reaction. The reacted mixture is cooled and slag removed to obtain a titanium-iron alloy ingot. The preparation method in the present invention reduces the consumption of aluminum, lowers production costs, and provides diversified varieties of titanium-ferroalloy alloys.

Description

technical field [0001] The invention relates to the technical field of metal smelting, in particular to a method for preparing ferro-titanium alloy. Background technique [0002] Ferro-titanium is a special iron alloy with a wide range of uses. It can be used as a deoxidizer and degasser to improve the mechanical properties of steel; it can be used as a hydrogen storage material to store hydrogen or purify hydrogen; it can be used as an alloy element additive to improve the performance of steel (such as corrosion resistance, high temperature tensile strength, etc.) Strength, etc.); can be used as an inoculant to improve its mechanical properties (such as wear resistance); can be used as a coating for welding rods; in addition, ferro-titanium is also used as a reducing agent for the production of other ferroalloys and non-ferrous metals by metallothermal reduction; non-ferrous Alloying additives for alloys; also used in small amounts in the chemical and other industries. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C33/00C22C38/14C22C38/06C22C38/02C21B15/02
CPCC21B15/02C22C33/00C22C38/02C22C38/06C22C38/14
Inventor 郑海燕沈峰满姜鑫高强健刘砚飞梁子敬黄文信
Owner NORTHEASTERN UNIV LIAONING
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