Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method of producing high-titanium-iron alloy by virtue of aluminum-magnesium process

A technology of iron alloy and aluminum-magnesium method, which is applied in the field of high-titanium-iron alloy production by aluminum-magnesium method, can solve the problems of high residual oxygen content and residual aluminum content of titanium-iron alloy, low efficiency and high cost, so as to reduce oxygen content, reduce pressure, improve The effect of liquidity

Inactive Publication Date: 2014-02-05
PANZHIHUA UNIV
View PDF3 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that the existing high-titanium ferroalloy smelting method has high cost and low efficiency, and the amount of residual oxygen and residual aluminum in the ferro-titanium alloy is very high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method of producing high-titanium-iron alloy by virtue of aluminum-magnesium process
  • Method of producing high-titanium-iron alloy by virtue of aluminum-magnesium process
  • Method of producing high-titanium-iron alloy by virtue of aluminum-magnesium process

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0042] Changing the amount of flux fluorite and lime in the experiment mainly affects the melting point and fluidity of slag, and then changes the separation effect of slag and high-titanium ferroalloy, thus affecting the yield and output of high-titanium ferroalloy.

[0043] Table 3 The influence of the change of flux on the output of high-titanium ferroalloy

[0044]

[0045] It can be seen from Table 3 that: (1) the appropriate dosage of fluorite is 40-55g when the titanium raw materials (titanium concentrate and titanium slag), reducing agent (aluminum powder), and heating agent (potassium chlorate) have not changed; (2) The reasonable dosage of lime is 50-60g. If the amount of fluorite is less than 40g, the melting point of slag will become higher, the separation of slag and ferro-titanium alloy will be difficult, the output of ferro-titanium alloy will be significantly lower, or the ferro-titanium alloy will contain slag. If the amount of fluorite added>55g, there is...

experiment example 2

[0047] When 150g of titanium concentrate, 350g of titanium slag, 50g of fluorite, 55g of lime, 125g of potassium chlorate, and 290g of aluminum powder, the influence of the ratio of magnesium powder instead of aluminum powder on the quality of high titanium ferroalloy is shown in figure 1 .

[0048] from figure 1It can be seen that when the ratio of magnesium powder replacing aluminum powder is controlled at 8.6-11.2%, with an average of 10%, the effect is the best. If the amount of magnesium powder used is too large, the splash loss will increase due to the excessive reaction of magnesium, and the grade of titanium will decrease due to the excessive absorption of oxygen in the air. If the amount of magnesium powder used is too small, its effect is poor, and the purpose of adding cannot be achieved.

Embodiment 1～7

[0050] After adopting the mass ratio of raw materials in Table 3 to mix evenly, the operation is as follows:

[0051] a. Heat the raw material to 200°C for 2 hours, then dry, dehydrate and deoil;

[0052] b, pulverizing the raw material processed in step a to a particle size of 1.5 mm;

[0053] c. Weigh and mix evenly according to the proportion composition required by the test, and put it into a magnesia crucible; the mixing degree is required to be ≥ 98.5%;

[0054] d. Put the upper part of the mixed raw materials in the crucible into the fuze, ignite and ignite the reaction;

[0055] e. After the reaction is completed, cover the surface with a layer of coal powder to isolate the air; after cooling, take out the reaction product;

[0056] f. Crushing and separating the slag and the alloy to obtain a high-titanium ferroalloy.

[0057] The experimental results are shown in Table 4:

[0058] Table 4 Raw material ratio of different reducing agents and detection results of hi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the smelting field of a high-titanium-iron alloy, and specifically relates to a method of producing a high-titanium-iron alloy by virtue of an aluminum-magnesium process. The method provided by the invention can be used for solving the technical problems that the existing high-titanium-iron alloy smelting method is high in cost, low in efficiency and very high in residual oxygen amount and residual aluminum amount in the titanium-iron alloy. A scheme for solving the technical problem is to provide a method of producing a high-titanium-iron alloy by an aluminum-magnesium process. The method of producing the high-titanium-iron alloy by the aluminum-magnesium process comprises the following steps: uniformly mixing the following materials in parts by weight: 1 part of titanium concentrate, 2.3 parts of titanium slag, 1.73-1.93 parts of aluminum powder, 0.17-0.23 parts of magnesium powder, 0.27-0.37 parts of fluorite, 0.33-0.4 parts of lime and 0.8-3 parts of potassium chlorate; smelting by adopting an upper ignition method to obtain the high-titanium-iron alloy. The method disclosed by the invention can be used for reducing the content of oxygen in the high-titanium-iron alloy, greatly reducing the pressure and cost in refining treatment of rear processes and improving the production efficiency.

Description

technical field [0001] The invention belongs to the field of high-titanium ferroalloy smelting, and in particular relates to the production of high-titanium ferroalloy by an aluminum-magnesium method. technical background [0002] At present, high-titanium iron is mainly produced by the aluminothermic method, which is also called the out-of-furnace method. The ratio of raw materials for the production of high-titanium iron by traditional thermite method is: 55% rutile, 27% aluminum powder, 5% iron powder, 6% lime, and 7% potassium chlorate. The production method is as follows: in a magnesia-knotted crucible, rutile is mainly used as a raw material, and aluminum powder is used as a reducing agent to carry out ignition reaction to complete relevant smelting reactions. The slag and ferro-titanium alloy are cooled with the furnace, and after cooling to room temperature, they are separated and crushed. This method is currently the main method for producing ferro-titanium. The ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/00C22B5/04C22C14/00
Inventor 丁满堂
Owner PANZHIHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com