废轮胎处理铜渣

IF 0.8 4区 材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING
S. T. Khojiev
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引用次数: 0

摘要

我们提出了一种利用废轮胎作为还原剂来源回收铜渣的新方法。在处理铜渣的传统方法中,通常使用各种类型的还原剂。然而,旧汽车轮胎中含有丰富的还原剂,这为我们提供了一种前景广阔的替代方法。通过使用废旧汽车轮胎作为还原剂,对 "Almalyk MMC "股份公司的转炉铜渣进行了试验性处理。化学和矿物分析表明,磁铁矿含量显著下降。此外,在废旧汽车轮胎的回收利用过程中,由于橡胶和碳氢化合物在高温下分解,形成了碳、氢和硫(作为有效的还原剂)。热力学分析证实,碳热反应在一定温度下是有效的,破旧轮胎的最佳消耗量为炉渣总重量的 1.8%。这种优化方法不仅降低了磁铁矿的含量,还减少了炉渣的总重量,从而揭示了在铜生产炉渣的再加工过程中实现和稳定应用破旧(废弃)汽车轮胎以提高铜提取效率的可能性。累积的结果揭示了这一创新方法在减少铜损失和实现更环保的铜生产工艺方面的前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Processing of copper slag using waste tires

Processing of copper slag using waste tires

We propose a new approach to process of recycling the slag of copper production with the use of waste tires as a source of reducing agents. In the traditional methods used for processing of copper slags, it is customary to use various types of reducing agents. However, the abundant presence of reducing agents in old automobile tires offers a promising alternative. Converter slags of the “Almalyk MMC” JSC were subjected to experimental treatment by using waste automobile tires as a reducing agent. The chemical and mineralogical analyses revealed a significant decrease in the magnetite content. Moreover, the process of recycling of waste automobile tires leads to the formation of carbon, hydrogen and sulfur (as effective reducing agents) as a result of the decomposition of rubber and hydrocarbons at high temperatures. The thermodynamic analysis confirms that carbothermal reactions are efficient at certain temperatures and the optimal consumption of worn tires is determined on a level of 1.8% of the total weight of slag. This optimized approach not only reduces the content of magnetite but also decreases the total mass of slag, thus revealing the possibility of realization and stability of application of the worn (waste) car tires for improving the efficiency of extraction of copper in the course of reprocessing of the copper-production slag. The accumulated results reveal the prospects of this innovative approach for decreasing the losses of copper and realization of a more environmentally friendly process of copper production.

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来源期刊
Metallurgist
Metallurgist 工程技术-冶金工程
CiteScore
1.50
自引率
44.40%
发文量
151
审稿时长
4-8 weeks
期刊介绍: Metallurgist is the leading Russian journal in metallurgy. Publication started in 1956. Basic topics covered include: State of the art and development of enterprises in ferrous and nonferrous metallurgy and mining; Metallurgy of ferrous, nonferrous, rare, and precious metals; Metallurgical equipment; Automation and control; Protection of labor; Protection of the environment; Resources and energy saving; Quality and certification; History of metallurgy; Inventions (patents).
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