Vanadium-raising cooling agent, method for preparing same and use method

A technology for coolant and ferrovanadium, which is applied in the field of metallurgy, can solve the problems of complicated use of coolant and difficult operation of the vanadium extraction process, and achieves the effects of the vanadium extraction process being in the right direction, the method being simple, and the preparation method being simple.

Inactive Publication Date: 2009-01-07
PANGANG GROUP RESEARCH INSTITUTE CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art, such as the compl

Method used

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  • Vanadium-raising cooling agent, method for preparing same and use method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Put the vanadium-containing iron ore concentrate powder, iron oxide scale, and binder in the above Table 1 into the roller sand mixer with a mass ratio of 20:75:5 for mixing and stirring, and then add them to the symmetrical ball briquetting machine after stirring evenly, and adjust the symmetric briquetting machine. The pressure of the ball machine is 15Mpa, and the spherical particles with a diameter of 8-12mm are extruded, and the spherical particles are naturally dried for 72 hours to obtain the coolant for extracting vanadium from the pellets.

[0033] After testing, the composition of the obtained pellet vanadium extraction coolant is: Fe 2 o 3 36.03%, FeO 55.6%, V 2 o 5 0.15%, SiO 2 4.83%, MgCl 2 2.74%. The prepared pellet vanadium extraction coolant is used for furnace temperature control under the condition of vanadium-containing molten iron converter in Panzhihua Iron and Steel Corporation. The main components of vanadium-containing molten iron are: 4...

Embodiment 2

[0035]Put the vanadium-containing iron ore concentrate powder, iron oxide scale, and binder in the above Table 1 into the roller sand mixer in a mass ratio of 40:55:5 for mixing and stirring, and then add them to the symmetrical ball briquetting machine after stirring evenly, and adjust the symmetric briquetting machine. The pressure of the ball machine is 15Mpa, and the spherical particles with a diameter of 8-12mm are extruded, and the spherical particles are naturally dried for 56 hours to obtain the coolant for extracting vanadium from the pellets.

[0036] After testing, the composition of the obtained pellet vanadium extraction coolant is: Fe 2 o 3 37.85%, FeO 48.19%, V 2 o 5 0.22%, SiO 2 5.70%, MgCl 2 1.28%. The balance is the content of impurity elements, such as TiO 2 、Cr 2 o 3 , P, S, etc. The obtained pellet vanadium extraction coolant is used for furnace temperature control under the condition of vanadium-containing molten iron converter in Panzhihua I...

Embodiment 3

[0038] Put the vanadium-containing iron ore concentrate powder, vanadium-extracting sludge, and binder in the above Table 1 into the roller sand mixer in a mass ratio of 35:60:5 for mixing and stirring, and then add them to the symmetrical ball press after stirring evenly, and adjust The pressure of the symmetrical briquetting machine is 15Mpa, and the spherical particles with a diameter of 8-12mm are extruded, and the spherical particles are naturally dried for 72 hours to obtain the coolant for extracting vanadium from the pellets.

[0039] After testing, the composition of the obtained pellet vanadium extraction coolant is: Fe 2 o 3 35.4%, FeO48.58%, V 2 o 5 0.23%, SiO 2 5.36%, MgCl 2 2.05%, the balance is the content of impurity elements, such as TiO 2 、Cr 2 o 3 , P, S, etc. The obtained pellet vanadium extraction coolant is used for furnace temperature control under the condition of vanadium-containing molten iron converter in Panzhihua Iron and Steel Co., Ltd....

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Abstract

The invention relates to a vanadium extraction coolant and a preparation method and a use method thereof which belong to the field of metallurgy. The invention provides a novel vanadium extraction coolant and overcomes the defects of complex use of the existing coolant and the large operation difficulty of the existing vanadium extraction technique. The vanadium extraction coolant comprises 80 to 95 percent of the oxides of iron, 3 to 6 percent of SiO2, 0.1 to 0.6 percent of V2O5, 1 to 3 percent of MgCl2 and the rest is less inevitable unpurified elements; the total amount is 100 percent. The vanadium extraction coolant of the invention is collocated and pressed by adopting iron concentrate powder containing vanadium and ferric oxide (or vanadium extraction mud) with a bonding agent which not only has a simple preparation method, but also has high cooling intensity; besides, the using method is simple during the process of using the vanadium extraction; the vanadium extraction technique is more smooth; the quality of the vanadium slag and the quality of gun iron are more stable; the invention fully recycles the most resources of iron and vanadium in the coolant simultaneously when achieving the goals of ''removing vanadium and preserving carbon''.

Description

technical field [0001] The invention relates to a coolant for extracting vanadium from molten iron, a preparation method and a use method thereof, and belongs to the field of metallurgy. Background technique [0002] In order to ensure the effective utilization of resources, the vanadium extraction process is usually carried out before steelmaking, that is, using the principle of selective oxidation, the vanadium in molten iron is oxidized into high-priced and stable vanadium oxides to prepare vanadium slag; Coolant is added to control the temperature of the molten pool, so that the temperature of the molten pool is kept below the conversion temperature of carbon and vanadium, so as to achieve the purpose of "removing vanadium and preserving carbon". [0003] In the prior art, the coolant is mixed with pig iron, ordinary iron ore and iron balls. On the one hand, there are many types, and it is difficult to control the oxygen lance position and oxygen amount during the vanadi...

Claims

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Application Information

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IPC IPC(8): C21C5/54
Inventor 何为卓钧戈文荪谭成英
Owner PANGANG GROUP RESEARCH INSTITUTE CO LTD
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