Production of chromium concentrate from press-filtration residue by means of heat treatment
DOI:
https://doi.org/10.15802/tpm.2.2025.01Keywords:
filter cake, heat treatment, diffractography, chromium oxide, haliteAbstract
The production of leather goods is an important industry that generates significant amounts of waste, including solid residues containing chromium compounds. Solid residues of leather production containing chromium are a valuable source for the production of chromium alloys, in particular chromium-based alloys used in metallurgy, as well as in various industries to create stainless steels and corrosion-resistant materials. The goal is to integrate the process of industrial waste recycling into production, which will reduce not only the environmental footprint but also create materials with high technological properties for further use in various industries. The methodology for producing chromium alloys from the solid residue of leather goods production is a complex and multi-stage process that includes preparation, heat treatment, chromium recovery, alloy manufacturing, and waste disposal. This approach not only reduces the environmental footprint, but also allows for the efficient use of secondary resources to produce high-quality metals and alloys. As a result of such production, significant environmental and economic benefits can be achieved, which will not only reduce costs but also ensure sustainable industrial development with minimal environmental impact. The scientific novelty of this methodology is the integration of modern technologies for processing leather waste to produce high-quality metal alloys that meet the requirements of modern industrial development. The practical significance of this method for the production of chromium alloys from the solid residue of leather products production is to save natural resources, improve the environmental situation, increase economic efficiency and promote sustainable development of both the metallurgical and leather industries. This allows us to make a significant contribution to sustainable economic growth with minimal environmental impact.
References
Malek, A., Hachemi, M., & Didier, V. (2009). New approach of depollution of solid chromium leather waste by the use of organic chelates: Economic and environmental impacts. Journal of Hazardous Materials, 170(1), 156-162. https://doi.org/10.1016/j.jhazmat.2009.04.118
Mu, C., Lin, W., Zhang, M., & Zhu, Q. (2003). Towards zero discharge of chromium-containing leather waste through improved alkali hydrolysis. Waste Management, 23(9), 835-843. https://doi.org/10.1016/S0956-053X(03)00040-0
Wenzel, B., Marcilio, N., Klug, J., Heck, N., & Godinho, M. (2012). Production of high carbon ferrochromium alloy from footwear leather waste ash through a carbothermic reduction. Journal of the American Leather Chemists Association, 107(11), 375-383
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