Ferrochrome Waste Management—Addressing Current Gaps for Energy and Material Consumption, Carbon Release, and Waste Beneficiation
A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Mineral Processing and Extractive Metallurgy".
Deadline for manuscript submissions: closed (12 November 2022) | Viewed by 11235
Special Issue Editor
Interests: metallurgy; smelting; waste management; hydrogen energy; material sciences
Special Issue Information
Dear Colleagues,
The modern world would be completely different without stainless steel. Equally so, ferrochrome (FeCr), the primary source of virgin chromium (Cr) units during the production of stainless steel, is of critical importance. FeCr is mainly produced by the energy-intensive carbothermic smelting of chromite ore in submerged arc furnaces (SAFs), and, to a lesser extent, direct-current (DC) arc furnaces. Several solid and gaseous byproducts (considered by industry as wastes) are generated during FeCr production depending on the production route employed, and are typically stockpiled/discarded, released into the atmosphere, or sold as low-value products.
The specific waste management practice used is determined by the physical and chemical properties of the material. It is thus considered a critical aspect that the identified waste be fully characterized if a suitable and effective management strategy is to be developed. An alternative to waste management is the identification of alternative processes that limit the generation of the specific waste material.
The objective of this Special Issue is to identify/characterize the wastes being generated during FeCr production and approaches to either manage such wastes or showcase alternative processes that forego/curve the generation of these wastes. Some of the topics of importance (but not limited to them) include the development of alternative chromite smelting procedures (e.g., assisted reduction and solid-state reduction by gaseous hydrocarbons/hydrogen), low-temperature chromite pelletization (e.g., cold bonding), slimes and slag beneficiation/uses, the utilization/recycling of undersized materials, and Cr (VI) management/mitigation strategies.
Dr. Stephanus Petrus du Preez
Guest Editor
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Keywords
- ferrochrome/ferrochromium
- solid-state reduction
- waste beneficiation
- recycling
- carbon reduction
- metal recovery
- cold bonding
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