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Ferrotitanium alloy electric furnace smelting method

A ferrotitanium alloy and electric furnace smelting technology, applied in the field of metal smelting, can solve the problems of high production cost, shortage of raw materials and high prices, and achieve the effects of stable product quality, continuity and low cost.

Inactive Publication Date: 2008-07-23
苏永山 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcoming is: this method needs to use a large amount of metal aluminum, and suffers a large amount of Al2O3 slag, still leaves 15%~25% titanium oxide in the slag and can not be reduced, and produces titanium ferroalloy But it contains more impurities, such as Si, Mn, S, P, V, etc. Due to the high price of aluminum, normal production cannot be carried out.
Its shortcomings are: this method requires the use of titanium waste and scrap steel, the production cost is too high, the output is low, and the raw materials are in short supply, basically all are imported raw materials, which are not suitable for industrial production of enterprises
Its shortcomings are: the production cannot be carried out continuously, the comprehensive benefits are close to the intermediate frequency furnace remelting method, and it is not suitable for industrial production

Method used

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Effect test

Embodiment 1

[0042] A ferro-titanium alloy electric furnace smelting method comprises the following process steps:

[0043] Step 1: Add titanium concentrate, rutile, quicklime, iron ore powder, ferrosilicon and other mineral materials into a high-temperature-resistant smelting furnace that can withstand temperatures above 3000°C, heat to 2100-2200°C, and turn the furnace The inner ore is completely melted;

[0044] Raw material proportioning of the present invention is:

[0045] Titanium concentrate (TiO 2 ≥46%) 50~55 parts by weight

[0046] Rutile (TiO 2 ≥90%) 15~18 parts by weight

[0047] Quicklime (CaO≥87%) 5~6 parts by weight

[0048] Iron ore powder (Fe≥60%) 4~5 parts by weight

[0049] Ferrosilicon (Si≥73%) 1~2 parts by weight

[0050] Metal aluminum particles (Al≥97%) 44~50 parts by weight

[0051] Potassium chlorate (KClO 3 ≥98%) 1.6~2 parts by weight

[0052] Step 2: Add the reducing agent 0.5~1.0mm metal aluminum particles and the heating agent potassium chlorate to t...

Embodiment 2

[0055] Step 1: Add titanium concentrate, rutile, quicklime, iron ore powder, ferrosilicon and other minerals into the ordinary smelting furnace according to the following proportions, heat to 1800~1900℃, and completely melt the minerals in the furnace;

[0056] Raw material proportioning of the present invention is:

[0057] Titanium concentrate (TiO 2 ≥46%) 65~70 parts by weight

[0058] Rutile (TiO 2 ≥90%) 25~30 parts by weight

[0059] Quicklime (CaO≥87%) 8~10 parts by weight

[0060] Iron ore powder (Fe≥60%) 8~10 parts by weight

[0061] Ferrosilicon (Si≥73%) 5~6 parts by weight

[0062] Metal aluminum particles (Al≥97%) 55~60 parts by weight

[0063]Potassium chlorate (KClO 3 ≥98%) 2.6~3 parts by weight

[0064] Step 2: Pour the completely melted ore into a high-temperature-resistant smelting furnace or crucible that can withstand temperatures above 3000°C, and add metal aluminum particles with a reducing agent of 0.5-1.0mm and a heat-enhancing agent, potassium ch...

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Abstract

The invention relates to a smelting method for a ferrotitanium alloy electric induction furnace, which comprises following steps: adding titanium concentrate, rutile, lime, ferrosilicon and other ore charges in a smelting furnace which is resistant to high temperature of over 3000 DEG C according to proportion; heating to 1800 to 2200 DEG C; completely melting the ore charges in the furnace; adding the reducing agent of 0.5 to 1.0mm metallic aluminum particles and heat enhancer potassium chlorate in the completely melted ore charges; increasing the temperature in the furnace to over 3000 DEG C by means of reduction heat released by metallic aluminum, so as to reduce the titanium dioxide in the ore charges into titanium metal which is aggregated into ferrotitanium alloy with iron; cooling the aggregated ferrotitanium alloy with the high temperature resistant smelting furnace or crucible to below 500 DEG C; taking the solidified ferrotitanium alloy integrally from the high temperature resistant smelting furnace or crucible and putting into cooling pond for cooling. The smelting method for the ferrotitanium alloy electric induction furnace has the advantages of convenient process, convenient operation, low cost, high yield, stable product quality and applicability to ferrotitanium production of small and medium sized smelting furnace with different capacities.

Description

technical field [0001] The invention relates to a metal smelting method, in particular to a ferro-titanium alloy electric furnace smelting method. Background technique [0002] At present, the production methods of ferro-titanium are generally classified into the following three types: [0003] 1. The aluminothermic reduction method, which is to use metal aluminum as a reducing agent, cooperate with additives, fluxes and heating agents to reduce titanium oxides, and reduce the metal titanium in titanium-containing oxides while releasing a large amount of reduction heat in an instant. Its shortcoming is: this method needs to use a large amount of metal aluminum, and suffers a large amount of Al2O3 slag, still leaves 15%~25% titanium oxide in the slag and can not be reduced, and produces titanium ferroalloy But it contains more impurities, such as Si, Mn, S, P, V, etc. Due to the high price of aluminum, normal production cannot be carried out. [0004] 2. Induction intermedi...

Claims

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Application Information

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IPC IPC(8): C22C1/02C22B5/04
Inventor 苏永山苏永芝苏钰雯
Owner 苏永山
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