Method for optimizing preparation process of vanadium-aluminum alloy

A technology of preparation process and optimization method, applied in the direction of improving process efficiency, etc., can solve the problems of many harmful impurities, unstable reaction process, large loss and so on

Active Publication Date: 2013-02-06
METALINK SPECIAL ALLOYS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current vanadium-aluminum alloy preparation process has large electrical losses, high content of gas elements, excessive harmful impurities, unstable reaction process, prone to splashing, resulting in excessive losses, and high metal recovery rate.

Method used

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  • Method for optimizing preparation process of vanadium-aluminum alloy
  • Method for optimizing preparation process of vanadium-aluminum alloy
  • Method for optimizing preparation process of vanadium-aluminum alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] 1. Raw materials for vanadium-aluminum alloy smelting production

[0056] Vanadium pentoxide: V 2 o 5 99.5%, P0.01%, C0.01%, S0.02%, Pb0.01%, Mo0.01%, K0.1%, Na0.1%, B0.001%, W0.006%, Fe0. 01%, Cu0.01%, Si0.04%, Ni0.002%, Mn0.02%, Mg0.04%, Cr0.01%, Y0.001%, other trace elements 0.1%

[0057] Aluminum powder: Al99.6%, Fe0.15%, Si0.20%, Cu0.02%, P0.03%

[0058] Fluorite: CaF 2 98.0%, S0.02%, C0.03%, SiO 2 1.6%, P0.03%, H 2 O0.1%, Fe 2 o 3 0.22%

[0059] Lime: CaO92.0%, SiO 2 2.0%, P0.01%, S0.05%, C0.8%, lime burning rate + burning rate 5.14%

[0060] 2. Preset conditions for ingredients:

[0061] Pre-refining vanadium-aluminum alloy containing V58% and Al41% as impurities, the amount of vanadium pentoxide used is 15kg / furnace; the amount of aluminum powder participating in the reaction is added in excess of 5%, and the balance of Al in the alloy is added The burning loss of aluminum powder is 6%; the unit heat release value of furnace charge is 3250KJ / Kg. The ...

Embodiment 2

[0099] 1. Raw materials for vanadium-aluminum alloy smelting production

[0100] Vanadium pentoxide: V 2 o 5 99.505%, P0.009%, C0.009%, S0.018%, Pb0.009%, Mo0.01%, K 0.1%, Na0.1%, B0.001%, W0.006%, Fe0.01 %, Cu0.01%, Si0.04%, Ni0.002%, Mn0.02%, Mg0.04%, Cr0.01%, Y0.001%, other trace elements 0.1%

[0101] Aluminum powder: Al99.68%, Fe0.1%, Si0.17%, Cu0.02%, P0.03%

[0102]Fluorite: CaF 2 98.22%, S0.02%, C0.03%, SiO 2 1.4%, P0.03%, H 2 O0.1%, Fe 2 o 3 0.20%

[0103] Lime: CaO92.0%, SiO 2 2.0%, P0.01%, S0.04%, C0.75%, raw burning rate of lime + overburning rate 5.2%

[0104] Reverse charge: slag.

[0105] 2. Preset conditions for ingredients:

[0106] Pre-refining vanadium-aluminum alloy containing V65% and Al34% as impurities, the amount of vanadium pentoxide used is 20kg / furnace; the amount of aluminum powder participating in the reaction is added in excess of 6%, and the balance of Al in the alloy is added The burning loss of aluminum powder is 7%; the unit heat ...

Embodiment 3

[0145] 1. Raw materials for vanadium-aluminum alloy smelting production

[0146] Vanadium pentoxide V 2 o 5 99.79%; P 0.01%; C 0.0083%; S 0.02%; Pb 0.01%; Mo0.0015%; K 0.013%; Na 0.018%; 0.034%; Ni 0.009%; Mn 0.014%; Mg 0.02%; Cr 0.01%; the remaining 0.02% are other trace elements

[0147] Aluminum powder Al 99.58%; Fe 0.15%; Si 0.205%; Cu 0.015%; P 0.05%;

[0148] Lime CaO 92.87%; SiO 2 2.0%; P 0.01%; S 0.04%, C 0.75%, burning rate + burning rate 4.33%

[0149] Fluorite CaF 2 99.13%, S 0.02%, C 0.03%, SiO 2 0.808%, P 0.012%.

[0150] Reverse charge: alloy foam.

[0151] 2. Preset conditions for ingredients:

[0152] Pre-refining vanadium-aluminum alloy containing V63.5%Al35.5% as impurities, the amount of vanadium pentoxide used is 20kg / furnace; the amount of aluminum powder participating in the reaction is added in excess of 6%, and the balance in the alloy The burning loss of aluminum powder mixed with Al is 6%; the unit heat release value of furnace charge is...

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Abstract

The invention discloses a method for optimizing a preparation process of a vanadium-aluminum alloy, which comprises the following steps of: at first, crushing vanadium pentoxide, aluminum powder, lime, fluorite and other materials according to the requirement of charging grain size, baking the crushed materials, dehydrating, removing volatile substances, then proportioning the baked materials appropriately, afterwards, totally pouring the proportioned materials into a material mixing cylinder for material mixing, delivering the sufficiently and uniformly mixed materials into a reaction furnace for smelting, standing still and precipitating upon the end of the smelting, then implementing casting, and finally, carrying out ball blast finishing, sampling and quality inspection. The method disclosed by the invention can effectively raise the metal recovery rate, lower the cost, reduce the content of alloy impurities and improve the quality of alloy.

Description

technical field [0001] The invention relates to a metal preparation process, in particular to a vanadium-aluminum alloy preparation process. Background technique [0002] With the continuous extension and development of metallurgical technology, the application of vanadium has also been continuously expanded. At present, in addition to mass production of ferrovanadium, high-vanadium ferrovanadium and vanadium nitride, they are used as alloying agents and micro-treatment agents for steel to improve the quality of steel. There are some vanadium-containing composite alloy products, such as vanadium-silicon alloy, vanadium-silicon-calcium alloy, vanadium-manganese alloy, vanadium-titanium alloy, etc., as well as non-ferrous vanadium-containing alloys, vanadium-carbon alloys, etc., which have been widely used in the technical field of the industry. effective application. In addition, with the development of the aerospace industry, vanadium is also one of the main raw materials f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C21/00C22B5/04C22B34/22
CPCY02P10/20
Inventor 陈道华贾明蔡可金王浩冰马步洋
Owner METALINK SPECIAL ALLOYS CORP
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