Abstract
Arsenic content in copper concentrates is continuously increasing worldwide. It is desirable to remove arsenic from copper in the earlier stages of copper making due to the deposition of arsenic to cathode copper during the electrorefining process. Effects of temperature, flux, and oxygen on the distribution of arsenic during copper converting and fire refining processes were studied using FactSage 8.2. The results showed that arsenic can be effectively removed by proper selection of converting and refining slags. The decrease in Fe/SiO2 or Fe/CaO ratio in the converting slag is favorable for arsenic distributed to slag. CaO is more effective than SiO2 in decreasing the liquidus temperature of the slag and arsenic content in the blister copper during the converting process. Na2O or CaO as a flux is effective to remove arsenic in the fire refining process.
Subject
General Materials Science,Metals and Alloys
Reference34 articles.
1. Schlesinger, M., Sole, K., Davenport, W., and Alvear, G. (2021). Extractive Metallurgy of Copper, Elsevier. [6th ed.].
2. Efficient and safe disposition of arsenic by incorporation in smelting slag through copper flash smelting process;Zhang;Miner. Eng.,2021
3. Mineralogical and morphological factors affecting the separation of copper and arsenic in flash copper smelting slag flotation beneficiation process;Zhou;J. Hazard. Mater.,2021
4. Zhao, B., and Liao, J. (2022). Development of Bottom-blowing copper smelting technology: A review. Metals, 12.
5. Mathematical modeling and numerical optimization of particle heating process in copper flash furnace;Gao;Trans. Nonferrous Met. Soc. China,2021
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