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Progress in Phosphorus Removal and Utilization from Converter Slag

Zhanyu Zhong, Yuxin Wan
International Core Journal of Engineering, (2025), Vol.11, No.5, pp.365-374
Published: April 22, 2025
DOI: 10.6919/ICJE.202505_11(5).0043
PDF: Download Full Text PDF
Abstract

Phosphorus, an irreplaceable non-renewable resource essential for agriculture and industry, holds significant economic value. However, global reserves of high-grade phosphate ores are rapidly depleting, making the search for suitable alternatives an urgent priority. Concurrently, the surging demand for steel driven by rapid global industrialization has positioned converter steelmaking-a pivotal process in steel production-as a critical industrial activity. Currently, converter steelmaking accounts for 80% of global steel production, with developed nations generating approximately 200 million tons of steel slag byproducts annually. This massive slag output not only occupies vast land resources but also poses environmental risks. Yet, steel slag is rich in phosphorus, representing a valuable secondary phosphorus resource. Thus, the effective recovery of phosphorus from converter slag is key to addressing phosphorus scarcity.This paper focuses on advanced technologies for efficient phosphorus recovery from converter slag, systematically summarizing global innovations in phosphorus removal from phosphorus-containing steel slag. It reviews metallurgical processes for phosphorus extraction via pyrometallurgical and hydrometallurgical methods, providing a critical research foundation and directional guidance for achieving high-efficiency phosphorus recovery in industrial applications.

Keywords: Converter Steelmaking; Dephosphorization; Pyrometallurgical Dephosphorization.
APA Citation: Zhanyu Zhong, Yuxin Wan (2025). Progress in Phosphorus Removal and Utilization from Converter Slag. International Core Journal of Engineering, 11(5), 365-374. https://doi.org/10.6919/ICJE.202505_11(5).0043

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