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Method for refining iron based on copper smelting waste residues

A waste slag and copper smelting technology, applied in the direction of fluidized bed furnace, etc., can solve the problems of waste of secondary resources, difficulty in refining, low grade, etc., and achieve the effect of improving utilization rate and effective recovery

Active Publication Date: 2019-12-17
尚明东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Copper smelting waste slag contains various valuable metals such as tin, copper, lead, zinc, iron, etc. Its potential utilization value is relatively high, but due to its complex composition and relatively low grade, it is difficult to extract the metals. resulting in a large waste of secondary resources
[0003] Due to the high iron content in copper smelting waste residue, it is more difficult to extract, and there is no better extraction method for the extraction of iron in copper smelting waste residue.

Method used

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  • Method for refining iron based on copper smelting waste residues
  • Method for refining iron based on copper smelting waste residues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for refining iron based on copper smelting waste slag, comprising the steps of:

[0024] Crushing: After crushing the copper smelting waste slag, the crushed waste slag is obtained;

[0025] Magnetic separation: After the crushed waste residue is magnetically separated and crushed, waste residue particles are obtained;

[0026] Mixing material: Mix the reducing agent, flux, catalyst and waste slag particles evenly to make smelting particles;

[0027] Smelting: After the smelting particles are dried and sent to the melting pool of the refining furnace for smelting, slag and molten iron are obtained;

[0028] Slagging: After adding reducing agent and impurity removing agent to the molten pool for slagging reaction, the impurity-removing molten iron is obtained;

[0029] Preparation of Bread Iron: Treat the molten iron with impurities removed with a cast iron machine to obtain Bread Iron.

[0030] Further, the reducing agent is coke powder; the flux is calcium ...

Embodiment 2

[0036] A method for refining iron based on copper smelting waste slag, comprising the steps of:

[0037] Crushing: After crushing the copper smelting waste slag, the crushed waste slag is obtained;

[0038] Magnetic separation: After the crushed waste residue is magnetically separated and crushed, waste residue particles are obtained;

[0039] Mixing material: Mix the reducing agent, flux, catalyst and waste slag particles evenly to make smelting particles;

[0040] Smelting: After the smelting particles are dried and sent to the melting pool of the refining furnace for smelting, slag and molten iron are obtained;

[0041] Slagging: After adding reducing agent and impurity removing agent to the molten pool for slagging reaction, the impurity-removing molten iron is obtained;

[0042] Preparation of Bread Iron: Treat the molten iron with impurities removed with a cast iron machine to obtain Bread Iron.

[0043] Further, the reducing agent is coke powder; the flux is calcium ...

Embodiment 3

[0049] A method for refining iron based on copper smelting waste slag, comprising the steps of:

[0050] Crushing: After crushing the copper smelting waste slag, the crushed waste slag is obtained;

[0051] Magnetic separation: After the crushed waste residue is magnetically separated and crushed, waste residue particles are obtained;

[0052] Mixing material: Mix the reducing agent, flux, catalyst and waste slag particles evenly to make smelting particles;

[0053] Smelting: After the smelting particles are dried and sent to the melting pool of the refining furnace for smelting, slag and molten iron are obtained;

[0054] Slagging: After adding reducing agent and impurity removing agent to the molten pool for slagging reaction, the impurity-removing molten iron is obtained;

[0055] Preparation of Bread Iron: Treat the molten iron with impurities removed with a cast iron machine to obtain Bread Iron.

[0056] Further, the reducing agent is coke powder; the flux is calcium ...

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Abstract

The invention discloses a method for refining iron based on copper smelting waste residues. The method comprises the following steps of crushing, material mixing, smelting, slag discharging and preparation of bread iron. In the process of crushing, the copper smelting waste residues are crushed, and waste residue particles are obtained. In the process of material mixing, a reducing agent, a flux,a catalyst and the waste residue particles are uniformly mixed, and then smelting particles are prepared. In the process of smelting, after the smelting particles are dried and fed into a molten poolof a refining furnace and are smelted, slag and molten iron are obtained. In the process of slag discharging, after the reducing agent and an impurity removing agent are added to the molten pool for the reaction, impurity-removing molten iron is obtained. In the process of preparing the bread iron, the impurity-removing molten iron is treated with a cast iron machine, and the bread iron is obtained. According to the method for refining the iron, the copper smelting waste residues are effectively reused, the iron ore in the copper smelting waste residues is effectively recovered, the utilization rate of the resources is increased, and the purposes of energy conservation and environmental protection are achieved.

Description

technical field [0001] The invention belongs to the technical field of copper smelting waste slag treatment, and in particular relates to a method for refining iron based on copper smelting waste slag. Background technique [0002] Copper smelting waste slag contains various valuable metals such as tin, copper, lead, zinc, iron, etc. Its potential utilization value is relatively high, but due to its complex composition and relatively low grade, it is difficult to extract the metals. Thereby causing a large amount of waste of secondary resources. [0003] Due to the high iron content in copper smelting waste slag, it is difficult to extract, and there is no better extraction method for the extraction of iron in copper smelting waste slag. Contents of the invention [0004] In order to solve the above-mentioned problems in the prior art, the purpose of the present invention is to provide a method for refining iron based on copper smelting waste slag. [0005] The technical...

Claims

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Application Information

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IPC IPC(8): C21B13/00
CPCC21B13/0006C21B13/008
Inventor 尚明东
Owner 尚明东
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