“Processing of red mud for the recovery of metallic values”
Date11th Apr 2023
Time03:00 PM
Venue NAC222, Metallurgy Seminar Hall
PAST EVENT
Details
Red mud is a waste by-product of aluminium industry, generated in abundance. The caustic nature of red mud prohibits its wide-scale utilization. It contains valuable minerals such as hematite, anatase, and traces of scandium and gallium. The phases in the red mud are interlocked, resulting in poor metal recovery by leaching or smelting processes. The phases in the red mud are modified using a novel treatment (baking process), resulting in metal dissolution using mild acid or water. The microwave heating technology was integrated in the treatment to enhance the process efficiency. The process generated valuable products such as alumina, titania, ferrous oxalate, and magnetite concentrate. The recovery of metals from the red mud can reduce the burden on the primary mined minerals.
Speakers
Dr. Shrey Agrawal
Metallurgical and Materials Engineering