Phase evolution of stainless-steel pickling sludge and blast-furnace gravity dust during high-temperature processQingyun Zhuang, Guangshi Li, Wenyu Xie, Yinghua Zhang, Zhongya Pang, Shuhua Geng, Xingli Zou and Xionggang LuMetall. Res. Technol., 120 4 (2023) 401DOI: https://doi.org/10.1051/metal/2023048