Interphase migration and enrichment of lead and zinc during copper slag depletion

IF 4.7 1区材料科学 Q1 METALLURGY & METALLURGICAL ENGINEERING

Transactions of Nonferrous Metals Society of China Pub Date : 2024-09-01 DOI:10.1016/S1003-6326(24)66593-3

Jun HAO , Zhi-he DOU , Xing-yuan WAN , Ting-an ZHANG , Kun WANG

引用次数: 0

Abstract

An interphase migration and enrichment model of lead and zinc during molten copper slag depletion was established. The occurrence of various components in copper slag was predicted using sulfur−oxygen potential calculations and confirmed through high-temperature experiments. The recovery rate of copper can reach 90.13% under the optimal conditions of 1200 °C, an iron to silicon mass ratio of 1.0, 3 wt.% ferrous sulfide, and a duration of 45 min. Lead (54.07 wt.%) and zinc (17.42 wt.%) are found in the flue dust as lead sulfate, lead sulfide, and zinc oxide, while copper matte contains lead (14.44 wt.%) and zinc sulfide (1.29 wt.%). The remaining lead and zinc are encapsulated as oxides within the fayalite phase.

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铜渣贫化过程中铅和锌的相间迁移和富集

建立了熔融铜渣贫化过程中铅和锌的相间迁移和富集模型。通过硫氧电位计算预测了铜渣中各种成分的出现，并通过高温实验进行了证实。在 1200 °C、铁硅质量比为 1.0、硫化亚铁重量百分比为 3、持续时间为 45 分钟的最佳条件下，铜的回收率可达 90.13%。铅（54.07 wt.%）和锌（17.42 wt.%）以硫酸铅、硫化铅和氧化锌的形式存在于烟尘中，而铜锍则含有铅（14.44 wt.%）和硫化锌（1.29 wt.%）。其余的铅和锌以氧化物的形式包裹在辉铜矿相中。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Transactions of Nonferrous Metals Society of China 工程技术-冶金工程

CiteScore

7.40

自引率

17.80%

发文量

8456

审稿时长

3.6 months

期刊介绍： The Transactions of Nonferrous Metals Society of China (Trans. Nonferrous Met. Soc. China), founded in 1991 and sponsored by The Nonferrous Metals Society of China, is published monthly now and mainly contains reports of original research which reflect the new progresses in the field of nonferrous metals science and technology, including mineral processing, extraction metallurgy, metallic materials and heat treatments, metal working, physical metallurgy, powder metallurgy, with the emphasis on fundamental science. It is the unique preeminent publication in English for scientists, engineers, under/post-graduates on the field of nonferrous metals industry. This journal is covered by many famous abstract/index systems and databases such as SCI Expanded, Ei Compendex Plus, INSPEC, CA, METADEX, AJ and JICST.