V.A. Luganov
The behavior of arsenopyrite under heating has been extensively studied, revealing that it dissociates into elemental arsenic at temperatures above 650 °C in the absence of air. In a vacuum, this dissociation begins at 550 °C, producing elemental arsenic alongside a residue of pyrrhotite and throilite. The presence of pyrite accelerates the dissociation process, enabling it to occur at lower temperatures. This study explores the implications for industrial processing of arsenic-bearing raw materials, highlighting the necessity of using standard equipment and oxygen for efficient processing. Through thermodynamic analyses, the research confirms the potential for arsenic sulfide formation during the thermal processing of arsenopyrite when pyrite and limited oxygen are present. The findings underscore the significance of managing arsenic in metallurgical production, as the challenge lies in transforming arsenic from a toxic to a less harmful form, ideally as sulfur compounds, given the prevalence of arsenopyrite in arsenic-bearing ores. The paper discusses consecutive addition techniques for pyrite, demonstrating how this method can improve the efficiency of arsenic sublimation and yield a product with high sulfur pyrrhotite content.
@article{7829e479-ad30-4073-af98-eebc608c0658,
title={The Behavior of Arsenopyrite in the Process of Roasting},
author={V.A. Luganov},
year={1983},
language={en}
}TY - JOUR TI - The Behavior of Arsenopyrite in the Process of Roasting AU - V.A. Luganov PY - 1983 LA - en ER -
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