Progress of Red Mud (waste during alumina production) Utilization: An Overview
Engineering
Mar 9, 2017
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Progress of Red Mud (waste during alumina production) Utilization: An Overview

The Staff Research and Consultancy committee of Department of Engineering organized a research orientation program titled “Progress of Red Mud (waste during alumina production) Utilization: An Overview” for the faculty members on Thursday March 2, 2017 at 11.30 am in Manual Drawing Hall (B106).

 Dr.B. Geetha, Lecturer of Engineering Department was the speaker of the program and she addressed the research scope of Red Mud (RM) extracted during the Bayer process for alumina production.

Actually, Red mud is the insoluble product after bauxite digestion with sodium hydroxide at elevated temperature and pressure. It is a mixture of compounds originally present in the parent mineral, bauxite, and of compounds formed or introduced during the Bayer cycle. A chemical analysis would reveal that RM contains silica, aluminum, iron, calcium, titanium, as well as an array of minor constituents, namely: Na, K, Cr, V, Ni, Ba, Cu, Mn, Pb, Zn etc. The variation in chemical composition between different RMs worldwide is high.

The presenter also explained the ill-effects of conventional disposal methods. Therefore, Red mud as a byproduct during extraction of aluminum has more research scope and exploration