Industrial production method for directly producing iron and vanadium-titanium-aluminum alloy from iron concentrate

A production method and technology for iron concentrate are applied in the field of vanadium-titanium-aluminum alloy production, which can solve the problems of high production cost and difficult operation, and achieve the effects of high production efficiency, no environmental pollution, and significant social and economic benefits.

Inactive Publication Date: 2009-07-22
北京金坤宏宇矿业科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the disadvantage of this method is that the p

Method used

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  • Industrial production method for directly producing iron and vanadium-titanium-aluminum alloy from iron concentrate
  • Industrial production method for directly producing iron and vanadium-titanium-aluminum alloy from iron concentrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The iron concentrate extracted from the vanadium-titanium magnetite ore in Chengde, Hebei is used.

[0061] The iron concentrate (80% of the particle size is less than 0.076mm) is mainly composed of FeO content of 27.73%, Fe 2 o 3 The content is 48.13%, TiO 2 The content is 10.02%, V 2 o 5 The content is 0.66%, SiO 2 The content of MgO is 3.5%, the content of MgO is 4.1%, the content of CaO is 3.2% and the rest of impurities (impurities refer to trace amounts of S, P).

[0062] The industrial production preparation steps of using iron concentrate to produce lump iron and vanadium-titanium-aluminum alloy are as follows:

[0063] Step 1: Use the ball pressing mechanism to pellet

[0064] After stirring iron concentrate, coal powder, calcium fluoride and sodium lignosulfonate evenly, pellets with a diameter of 20 mm are produced through a briquetting machine;

[0065] The pressure required for the briquetting mechanism to pelletize is 25MPa.

[0066] Dosage: Add 25...

Embodiment 2

[0083] Iron concentrate extracted from vanadium-titanium magnetite ore in Panzhihua, Sichuan.

[0084] The iron ore concentrate (87% of the particle size is less than 0.1mm) has a main component FeO content of 29.13%, Fe 2 o 3 The content is 43.43%, TiO 2 The content is 14.52%, V 2 o 5 The content is 0.59%, SiO 2 The content of MgO is 3.1%, the content of MgO is 3.0%, the content of CaO is 3.0% and the rest of impurities (impurities refer to trace amounts of S and P).

[0085] The industrial production preparation steps of producing lump iron and vanadium-titanium-aluminum alloy from iron concentrate are as follows:

[0086] Step 1: Use the ball pressing mechanism to pellet

[0087] After stirring the iron concentrate, coal powder, calcium fluoride and sodium lignosulfonate evenly, the pellets with a diameter of 60 mm are obtained through a briquetting machine;

[0088] The pressure required for the briquetting mechanism to pelletize is 30MPa.

[0089] Dosage: Add 150g...

Embodiment 3

[0105] Iron concentrate extracted from vanadium-titanium magnetite ore in Linyi, Shandong.

[0106] The iron ore concentrate (70% of the particle size is less than 0.4mm) has a main component FeO content of 24.38%, Fe 2 o 3 Content is 55.19%, TiO 2 The content is 13.42%, V 2 o 5 The content is 0.59%, SiO 2 The content of MgO is 1.7%, the content of MgO is 1.0%, the content of CaO is 1.0% and the rest of impurities (impurities refer to trace amounts of S and P).

[0107] The industrial production preparation steps of producing lump iron and vanadium-titanium-aluminum alloy from iron concentrate are as follows:

[0108] Step 1: Use the ball pressing mechanism to pellet

[0109] After stirring the iron concentrate, coal powder, calcium fluoride and sodium lignosulfonate evenly, the pellets with a diameter of 50 mm are obtained through a briquetting machine;

[0110] The pressure required for the briquetting mechanism to pelletize is 25MPa.

[0111] Dosage: Add 200g of coa...

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Abstract

The invention discloses a commercial manufacturing method for directly producing iron and titanium aluminum alloy from iron ore concentrate, and comprises the following procedures: first, carrying out pellet preparation to the iron ore concentrate extracted from the vanadium-titanium magnetite rock and mineral; then, drying the pellets, reducing and fractional melting, and screening and extracting the block iron; last, adopting an aluminothermic reducing method to vanadium-titanium bearing slag so as to obtain vanadium-titanium aluminum alloy. The content of the block iron obtained in the method is about 95 percent; the recycling rates of iron, vanadium and titanium are 90 percent, 85 percent and 85 percent respectively. The commercial manufacturing method has the advantages of high iron, vanadium and titanium integrated recycling and utilization rate, high production rate and no pollution to environment, thus being easy for industrialization promotion and having obvious social and economical efficiency.

Description

technical field [0001] The present invention relates to mineral separation and alloy smelting methods, more particularly, refers to an industrialized production method that firstly separates lump iron from iron concentrate, and then smelts vanadium-titanium-aluminum alloy by adding aluminum. Background technique [0002] Titanium is an important structural metal. Because of its high strength, low density, good corrosion resistance and high heat resistance, titanium alloy is a good structural and functional material, and is widely used in aerospace, medical equipment, chemical industry Equipment, military industry and sports equipment and other fields. Many countries in the world have recognized the importance of titanium alloy materials, researched and developed them one after another, and obtained practical applications. Since Kroll successfully developed the smelting metal Ti in the 1950s, the industrial production method of titanium widely used in the world is still the ...

Claims

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Application Information

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IPC IPC(8): C21B11/00C22B7/04C22B5/04C22B1/14C22C1/00
CPCY02P10/20
Inventor 卢惠民
Owner 北京金坤宏宇矿业科技有限公司
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