Scientific publications

Safe use of hydrogen for lab and pilot scale

The purpose of this document is to supply necessary information for safe handlingof hydrogen for lab and pilot scale applications of HARARE project. Whenhydrogen is oxidized with oxygen, the only by-product is water vapor, making itan ideal energy carrier and oxidizing agent for a green environmentally friendlyand sustainable economy. Hydrogen is however commonly viewed as […]

Bauxite Residue Agglomerate at Elevated Temperatures for Iron and Alumina Recovery

Bauxite Residue Agglomerate at Elevated Temperatures for Iron and Alumina Recovery The hydrogen reduction of bauxite residue lime pellets at elevated temperatures was carried out to recover iron and alumina from the bauxite residue in a new process route. Prior to the H2 reduction, oxide pellets were initially prepared via the mixing of an industrial […]

Hydrogen reduction of bauxite residue and selective metal recovery

Hydrogen reduction of bauxite residue and selective metal recovery Ganesh Pilla, Stergi V. Kapelari, Tobias Hertel, Bart Blanpain, Yiannis PontikesDepartment of Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, 3001 Leuven, Belgium Abstract: Bauxite residue (BR) is an industrial by-product generated during the production of alumina from bauxite ores in the Bayer process. BR is environmentally […]

Recovery of Copper, Iron, and Alumina from Metallurgical Waste by Use of Hydrogen

Recovery of Copper, Iron, and Alumina from Metallurgical Waste by Use of Hydrogen Abstract: Substituting carbon with hydrogen is one of the few ways metal production can potentially become free of CO2 emissions. Moreover, the metallurgical industry produces significant amounts of waste. The present work presents a circular concept that will be pursued in the HARARE […]