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Production method of ferrotitanium

A production method, the technology of ferro-titanium, which is applied in the field of pyrometallurgy, can solve problems such as the recovery rate of titanium element is not very stable, and achieve the effects of improving production safety, reducing labor intensity of workers, and reducing material consumption

Inactive Publication Date: 2012-03-28
CITIC JINZHOU METAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The recovery rate of titanium element is not very stable, with an average of 65%

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 Using this method to produce FeTi30 brand ferro-titanium

[0024] The titanium-containing raw material is titanium concentrate, and its composition is TiO2: 49.34%, FeO: 23.1%, Fe 2 o 3 15.4%; aluminum Al: 96.3%; ferrosilicon containing Si: 73.45%; lime containing CaO: 82.64%; The total input amount of titanium concentrate is 600kg, iron scrap 300kg, aluminum 136kg, ferrosilicon 63kg, lime 65kg, the total amount of lime mixed with titanium concentrate is 26kg, and the total amount of lime mixed with aluminum is 39kg. For the first feeding, the amount of feeding is 3 batches of mixed materials, and the amount of one batch of mixed materials is 100kg of titanium-containing raw materials and corresponding input quantities of lime, ferrosilicon, iron-containing raw materials, and aluminum: (1) use iron filings to strike the arc to form a molten pool. ⑵Put titanium concentrate and lime into the electric refining furnace, and heat the titanium concentrate and lim...

Embodiment 2

[0026] Example 2 Using this method to produce FeTi40 brand ferro-titanium

[0027] The titanium-containing raw material is a mixture of titanium concentrate and high-titanium slag, and its composition is TiO2: 60.35%, FeO: 20.2%, Fe 2 o 3 11.4%; aluminum Al: 98.5%; ferrosilicon containing Si: 75.64%; lime containing CaO: 84.25%; iron-containing raw material is iron filings: ΣFe: 93%. The total input of titanium-containing raw materials is 900kg, iron filings 300kg, aluminum 248kg, ferrosilicon 80kg, lime 100kg, the total amount of lime mixed with titanium-containing raw materials is 40kg, and the total amount of lime mixed with aluminum is 60kg. For the first feeding, the amount of feeding is 3 batches of mixed materials, and the amount of one batch of mixed materials is 100kg of titanium-containing raw materials and corresponding input quantities of lime, ferrosilicon, iron-containing raw materials, and aluminum: (1) use iron filings to strike the arc to form a molten pool....

Embodiment 3

[0029] Example 3 Using this method to produce FeTi70 brand ferro-titanium

[0030] The titanium-containing raw material is a mixture of titanium concentrate and rutile, and its composition is TiO2: 74.46%, FeO: 13.4%, Fe 2 o 38.7%; aluminum Al: 99.2%; ferrosilicon containing Si: 77.71%; lime containing CaO: 80.49%; iron-containing raw material is a mixture of iron phosphorus and iron ore: ΣFe: 68%. A total of 1200kg of titanium-containing raw materials were used, 240kg of iron-containing raw materials, 414kg of aluminum, 73kg of ferrosilicon, and 205kg of lime. The total amount of lime mixed with titanium-containing raw materials into the furnace was 82kg, and the total amount of lime mixed with aluminum was 123kg. For the first feeding, the amount of feeding is 4 batches of mixed materials, and the amount of a batch of mixed materials is 100kg of titanium-containing raw materials and corresponding input quantities of lime, ferrosilicon, iron-containing raw materials, aluminu...

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PUM

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Abstract

The invention relates to a production method of ferrotitanium. The production method is characterized by comprising the following steps: carrying out arc strike by using ferrum-contained raw material to form a molten pool; putting titanium-containing raw material and lime into a refined electric furnace; carrying out electric-arc heating; in the melting process, adding ferrosilicon into the refined electric furnace to prepare slag and iron; adding the ferrum-containing raw material, lime and aluminum into the refined electric furnace to react with the slag, wherein the alloy generated in the reaction process sink and the slag floats up in the reaction process, and slag and iron are separated until reaction is finished; deslagging, and continuously smelting to finish the whole smelting process; and cutting off power supply, cooling and finishing to obtain the ferrotitanium. The production method has the advantages that requirement on the granularity of each raw material is not strict, processing procedures are reduced, the labor intensity of workers is lowered, the safety coefficient in the ferrotitanium production can be improved, the product recovery rate is improved, aluminum consumption is lowered, and production cost is lowered; and different models of ferrotitanium are produced, thereby breaking through a pattern that a single method can be used for smelting limited models of ferrotitanium.

Description

technical field [0001] The invention belongs to the field of pyrometallurgy, in particular to a production method of ferrotitanium. Background technique [0002] The production of ferro-titanium in my country mainly includes metal remelting and out-of-furnace smelting. The metal remelting method produces ferro-titanium by melting titanium, ferro-titanium alloys, etc. through an induction furnace and recrystallizing them; the main products are low-impurity and other special products. The ferro-titanium composition, this method is very restricted by raw materials, and the cost is high, it is not suitable for smelting ferro-titanium, and there are few practical applications; the ferro-titanium smelting process outside the furnace is the leading production of ferro-titanium today, accounting for about 90% of the entire industry. % or more, in accordance with the requirements of the national standard, it can produce FeTi30, FeTi40, FeTi70 and other grades of ferrotitanium, and some...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B5/04C22C1/02C22C14/00C22C33/04C22C38/14
Inventor 齐牧崔传海宫志国郑中巍杜明
Owner CITIC JINZHOU METAL
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