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Full-Text Articles in Chemical Engineering
Effects Of Bioleaching On The Chemical, Mineralogical And Morphological Properties Of Natural And Waste-Derived Alkaline Materials, Yi Wai Chiang, Rafael M. Santos, Annick Monballiu, Karel Ghyselbrecht, Johan A. Martens, Maria Laura T. Mattos, Tom Van Gerven, Boudewijn Meesschaert
Effects Of Bioleaching On The Chemical, Mineralogical And Morphological Properties Of Natural And Waste-Derived Alkaline Materials, Yi Wai Chiang, Rafael M. Santos, Annick Monballiu, Karel Ghyselbrecht, Johan A. Martens, Maria Laura T. Mattos, Tom Van Gerven, Boudewijn Meesschaert
Faculty Publications and Scholarship
Bioleaching is a potential route for the valorisation of low value natural and waste alkaline materials. It may serve as a pre-treatment stage to mineral carbonation and sorbent synthesis processes by increasing the surface area and altering the mineralogy of the solid material and by generating an alkaline rich (Ca and Mg) aqueous stream. It may also aid the extraction of high value metals from these materials (e.g. Ni), transforming them into valuable ore reserves. The bioleaching potential of several bacteria (Bacillus circulans, Bacillus licheniformis, Bacillus mucilaginosus, Sporosarcina ureae) and fungi (Aspergillus niger, Humicola grisea, Penicillium chrysogenum) towards the alteration …
Travelling In Cuba, Fathi Habashi
Travelling In Cuba, Fathi Habashi
Fathi Habashi
Contact with Cuban scientists was established in 1986 when two researchers from Centro de Investigaciones para Industria Minero Metalurgica in Havana visited Laval University to get acquainted with research activities in the area of extractive metallurgy. This was followed in early 1987 by two more researchers from the same centre. Invitations were then received in late 1987, 1989, and 2008 to visit the nickel refineries in Cuba and to hold seminars at the University of Havana. The present report outlines these activities.
Structured Materials For Catalytic And Sensing Applications, Selma Hokenek
Structured Materials For Catalytic And Sensing Applications, Selma Hokenek
USF Tampa Graduate Theses and Dissertations
The optical and chemical properties of the materials used in catalytic and sensing applications directly determine the characteristics of the resultant catalyst or sensor. It is well known that a catalyst needs to have high activity, selectivity, and stability to be viable in an industrial setting. The hydrogenation activity of palladium catalysts is known to be excellent, but the industrial applications are limited by the cost of obtaining catalyst in amounts large enough to make their use economical. As a result, alloying palladium with a cheaper, more widely available metal while maintaining the high catalytic activity seen in monometallic catalysts …