Characterization and deactivation studies of an activated sulfided red mud used as hydrogenation catalyst

Iron Recovery from Bauxite Tailings Red Mud by Thermal Reduction with Blast Furnace Sludge

“…Very recently, a group of designers started the production of ceramics made by red muds that can be used to make design objects like plates, bowls, and vases (the pieces are now undergoing certification for food safety and non-toxicity) [35]. Also, the chemical industry has made attempts to use bauxite residue as a pH modifier in the heap leaching of gold ores, in the removal of sulfur compounds from kerosene oil, and the hydrogenation of anthracene, coals, and aromatic compounds [3,[36][37][38][39][40][41]. Finally, in agriculture red mud have been used for wastewater treatment [42][43][44][45][46][47].…”

Hydrogen production from methane in the presence of red mud –making mud magnetic

“…2, 3 Potential applications which have attracted attention are its use in construction materials, 4 ceramics, 1 as a sorbent and coagulant for gas and water purification 3,5-7 and as a catalyst. 2,8- 15 In the latter respect, investigations of catalytic activity of various red muds, and their pre-treated forms, have been made for hydrogenation, 13-15 hydrodechlorination 8-11 and hydrocarbon oxidation. In terms of oxidation, interest has centred upon the catalytic combustion of methane.…”

Waste as a Resource for High Value Materials

“…Another modification of red mud is to obtain sulfided red mud which is catalytically more active for hydrogenation reactions. In these studies, the sulfidation was done in situ by passing 10% hydrogen sulfide through the catalyst [7,8]. Phosphorus modification has also been carried out by treating the red mud with a mixture of hydrochloric and phosphoric acids prior to in situ sulfidation to increase the life of the hydrogenation catalyst [9].…”