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Process for producing pure manganese-silicon-aluminum alloy from high phosphorus manganese ore

A high-phosphorus manganese ore and manganese-silicon alloy technology, which is applied in the field of alloy smelting, can solve the problems of manganese-silicon-aluminum alloy not meeting standard requirements, unacceptable to downstream users, easy powdering of products, etc. The effect of energy saving and resource saving

Inactive Publication Date: 2015-10-07
秦领 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for producing manganese-silicon-aluminum alloys with high-phosphorus manganese ore, which solves the problem that the manganese-silicon-aluminum alloys produced by the traditional carbothermal reduction method and fusion method cannot meet the current standard requirements, and the products are easily pulverized, resulting in It cannot be used in steelmaking production, and the cost is high, which is difficult for downstream users to accept

Method used

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  • Process for producing pure manganese-silicon-aluminum alloy from high phosphorus manganese ore

Examples

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Embodiment 1

[0023] A kind of high-phosphorus manganese ore described in the present embodiment produces pure manganese-silicon-aluminum alloy process, comprises the following steps:

[0024] Step (1), put high-phosphorus manganese ore, coke, and silica into the submerged arc furnace to obtain liquid high-phosphorus manganese-silicon alloy, the mass percentage of each component is: Mn: 70%; Si: 17%; P: 0.6 %; C: 1.5%; S: 0.03%, the rest is Fe;

[0025] Step (2), take 3000Kg of the liquid high-phosphorus manganese-silicon alloy in step (1), and pour it into an intermediate frequency furnace filled with industrial silicon waste (containing 75% silicon), decarburization flux and a small amount of covering agent, After the furnace material is melted, the slag is removed and the furnace is released. At this time, the mass percentage of each component in the manganese-silicon alloy is Mn: 62%; Si: 25%; P: 0.35%; C: 0.3%; S: 0.03%;

[0026] Step (3), pour the manganese-silicon alloy obtained in ...

Embodiment 2

[0036] A kind of high-phosphorus manganese ore described in the present embodiment produces pure manganese-silicon-aluminum alloy process, comprises the following steps:

[0037] Step (1), put high-phosphorus manganese ore, coke, and silica into the submerged arc furnace to obtain a liquid high-phosphorus manganese-silicon alloy. The mass percentage of each component is: Mn: 69%; Si: 16%; P: 0.9 %; C: 1.9%; S: 0.03%, the rest is Fe;

[0038]Step (2), take 3000Kg of the liquid high-phosphorus manganese-silicon alloy in step (1), and pour it into an intermediate frequency furnace filled with industrial silicon waste (containing 85% silicon), decarburization flux and a small amount of covering agent, After the furnace material is melted, the slag is removed and the furnace is released. At this time, the mass percentage of each component in the manganese-silicon alloy is Mn: 57.5%; Si: 28%; P: 0.5%; C: 0.15%; S: 0.015%;

[0039] Step (3), pour the manganese-silicon alloy obtained...

Embodiment 3

[0044] A kind of high-phosphorus manganese ore described in the present embodiment produces pure manganese-silicon-aluminum alloy process, comprises the following steps:

[0045] Step (1), put high-phosphorus manganese ore, coke, and silica into the submerged arc furnace to obtain liquid high-phosphorus manganese-silicon alloy, the mass percentage of each component is: Mn: 65%; Si: 17%; P: 1.1 %; C: 1.6%; S: 0.04%, the rest is Fe;

[0046] Step (2), take 3000Kg of the liquid high-phosphorus manganese-silicon alloy in step (1), and pour it into an intermediate frequency furnace filled with industrial silicon waste (containing 60% silicon), decarburization flux and a small amount of covering agent, After the charge is melted, the slag is removed and the furnace is released. At this time, the mass percentage of each component in the manganese-silicon alloy is Mn: 60%; Si: 27%; P: 0.65%; C: 0.35%; S: 0.025%;

[0047] Step (3), pour the manganese-silicon alloy obtained in step (2)...

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Abstract

The invention discloses a technique for producing a pure manganese-silicon-aluminum alloy from high-phosphorus manganese ores, which comprises the following steps: (1) adding high-phosphorus manganese ores, coke and silica into a submerged arc furnace to obtain a manganese-silicon alloy; (2) pouring the manganese-silicon alloy obtained in the step (1) into an intermediate frequency furnace containing industrial silicon leftovers, decarbonizing flux and a small amount of covering agent; (3) pouring the manganese-silicon alloy obtained in the step (2) into a stirring ladle filled with a silicon-calcium alloy or silicon-barium alloy and a small amount of slag former; (4) pouring part of the high-silicon manganese-silicon alloy, Zinifex, lime and fluorite into an arc furnace to obtain manganese-rich slag; (5) reacting the manganese-rich slag obtained in the step (4) with the high-silicon manganese-silicon alloy obtained in the step (3); and (6) pouring the alloy obtained in the step (5) into an intermediate frequency furnace filled with scrap aluminum or aluminum ingots to obtain the manganese-silicon-aluminum alloy. By adopting the technique, the manganese-silicon-aluminum alloy can satisfy the current standard requirements, the product can be prevented from powdering, and the cost is lower.

Description

technical field [0001] The invention relates to the field of alloy smelting, in particular to a process for producing pure manganese-silicon-aluminum alloys from high-phosphorus manganese ore. Background technique [0002] In the 1950s and 1960s, metallurgists in the former Soviet Union discovered that manganese-silicon-aluminum composite alloy has the characteristics of deep deoxidation in steelmaking and can improve the mechanical properties of steel. For this reason, a large team was organized to develop this product, and they formulated two sets of plans. : one is to melt aluminum in high-silicon-manganese-silicon or manganese-silicon alloy melt, and the other is to use carbon to reduce the charge containing manganese, silicon, and aluminum in submerged arc furnaces to produce manganese-silicon-aluminum alloys, but the products obtained by smelting Due to the high content of phosphorus and carbon, it is very easy to pulverize, so that the product cannot be used in the st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C22/00C22C1/02C22C1/10
Inventor 秦领秦化学康海林李志勤
Owner 秦领