Work

Chromium Control in Ammonium Vanadate Precipitation from Slag-Derived Liquors: A Diagnostic Framework Integrating Speciation, Entrainment, and Mother-Liquor Recycling

Year: 2026

Type: article

Abstract: Ammonium precipitation is widely used to recover vanadium from slag-derived liquors as ammonium metavanadate or polyvanadate, but chromium control is often evaluated less systematically than vanadium recovery. This focused process-diagnostic review draws on the topic-guided literature identified from academic literature sources, preliminary literature-discovery tools, and reference-list tracing. It presents a diagnostic framework integrating V/Cr speciation, cake entrainment, washing response, soluble-ion tracers (Na+, SO42−, Cl−), and recycle-accumulation assessment to identify whether product chromium originates from retained mother liquor, solid-associated transfer, or recycle accumulation. The analysis shows that high single-pass vanadium precipitation efficiency alone is insufficient; credible process assessment requires product-Cr source diagnosis, Cr(VI) control, purge/salt-recovery planning, and multi-cycle validation.

Source: Minerals

DOI: 10.3390/min16090866

Authors: Xin-Yu Wang, Hai-Quan Zhao, Lu-Feng Wang, Feng Wang, Yuan-Hong Qi

Institutions: China Iron and Steel Research Institute Group, Panzhihua University, State Key Laboratory of Advanced Steel Processing and Products

Language: English

Topic: Metal Extraction and Bioleaching

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Responsible consumption and production, Clean water and sanitation

Open Access status: gold

Estimated APC paid: $2,896