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Beneficiation process of mixed dregs using three copper smelting methods of flash smelting furnace, revolving furnace and depletion electric furnace

A technology of depleted electric furnace and flash furnace, which is applied in the mineral processing field of mixed slag of copper smelting process of flash furnace, converter and depleted electric furnace. The effect of low equipment repair and maintenance rate, improved flotation index, and smooth process

Active Publication Date: 2009-07-29
CHINA NERIN ENG
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Problems solved by technology

[0002] With the continuous improvement of the level of copper smelting technology in my country, the properties of slag are also changing, and there are more and more types of slag, and the properties are becoming more and more complex. sorting, dehydration process) has been difficult to adapt to the slag properties of this composite smelting process

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  • Beneficiation process of mixed dregs using three copper smelting methods of flash smelting furnace, revolving furnace and depletion electric furnace

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Embodiment Construction

[0007] This new process is applied to various mixed slag beneficiation, and the properties of the three kinds of slag are as follows:

[0008] 1. Flash furnace is the slag produced by smelting copper concentrate through flash furnace. The nature of the slag is related to the copper concentrate and large composition of the furnace and the smelting operating conditions. The main components are copper sulfide, copper metal, olivine, iron oxide, ballast, iron glass body and so on. Slag composition: Cu 2%, Fe 40%, SiO2 28.5%.

[0009] 2. Converter slag is the slag produced by matte copper smelting in the converter, and its properties are determined by the matte copper composition, smelting operation conditions and slag cooling speed. The main ingredients are iron, olivine, magnetite, white matte and matte. Slag composition: Cu 5%, Fe 44%, SiO2 22.0%.

[0010] 3. Diluted electric furnace slag is the slag produced after the copper concentrate is smelted in a flash furnace and the...

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Abstract

The invention discloses a dressing process for a plurality of sorts of slag mixed materials currently applied to domestic industrial production. The dressing process has better adaptability, and is suitable for the treatment of both mixed slag materials and slag materials generated by various smelting processes, thereby providing an effective way for reclaiming domestic copper slag resource. The dressing process not only has short process flow, less investment, low energy consumption, no pollution and lower production cost, but also breaks through index which cannot be realized by the prior common slag dressing process, thereby obtaining remarkable economical and social benefits. Therefore, the dressing process provides powerful technical support for realizing recycling economy strategy of copper resource from one aspect, and has wide application prospect in the field of copper slag dressing.

Description

technical field [0001] The invention relates to a beneficiation process, in particular to a beneficiation process for the mixed slag of three copper smelting processes of a flash furnace, a converter and a depleted electric furnace. Background technique [0002] With the continuous improvement of the level of copper smelting technology in my country, the properties of slag are also changing, and there are more and more types of slag, and the properties are becoming more and more complex. sorting, dehydration process) has been difficult to adapt to the slag properties of this composite smelting process. With the rapid development of the national economy, the demand for copper resources is also increasing, but at the same time copper resources are becoming increasingly scarce. In response to the country's call for the development of circular economy, the comprehensive recovery of copper smelting slag is imperative. Therefore, it is necessary to find a new beneficiation process...

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Application Information

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IPC IPC(8): B03B7/00B03B1/00B02C23/12B02C17/00
Inventor 徐小龙雷存友袁国才胡根华余浔
Owner CHINA NERIN ENG
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