Kinetics and mechanism of ultrasound-enhanced citric acid leaching of chromium from steel slag
accumulation and probable gel formation, impairing solid-liquid separation. Confining the process within this window allowed the primary Cr extraction to proceed before gel-dominated effects prevailed. Leaching toxicity tests (GB 5086.1-1997) suggested that treated residues met environmental safety standards. This work clarifies the apparent enhancement mechanism of ultrasound-assisted citric acid leaching and provides a feasible basis for the green utilization of Cr-bearing metallurgical slags.
Authors
- Jinxia Zhang (ORCID: https://orcid.org/0000-0002-5232-8222)
- Fusheng Niu (ORCID: https://orcid.org/0000-0002-0681-3892)
- Xinwei Wang
- Qi Chen
Institutions
- North China University of Science and Technology (CN)
- Tangshan College (CN)
- China Coal Technology and Engineering Group Corp (China) (CN)
Publication Details
- Journal
- Ultrasonics Sonochemistry
- Published
- 2026-03-31
- DOI
- https://doi.org/10.1016/j.ultsonch.2026.107839
- Primary Topic
- Metal Extraction and Bioleaching
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Natural Science Foundation of Hebei Province
- Tangshan Science and Technology Bureau
- Hebei Province Science and Technology Support Program