Magnetite-Based Catalyst in the Catalytic Wet Peroxide Oxidation for Different Aqueous Matrices Spiked with Naproxen–Diclofenac Mixture

Catalytic wet air oxidation of aqueous solution of phenol over Pt/CNF catalyst

The catalytic wet air oxidation (CWAO) of phenol has been studied in trickled bed reactor using 2 wt.% platinum supported on carbon nanofibers (Pt/CNF) as catalyst. The catalyst was prepared by incipient wetness impregnation, and characterized by N2 adsorption, XRD and TEM. The operational variables studied and their range were: total air pressure, temperature, catalyst load, air and liquid flo...

Activated carbons treated with sulphuric acid: Catalysts for catalytic wet peroxide oxidation

Different liquid phase thermal treatmentswere applied to a commercial activated carbon (Norit ROX 0.8) in order to produce modified activated carbons with varying surface chemistry and increased acidic character. Chemical characterization of the prepared materials includes determination of the point of zero charge and evaluation of the concentration and nature of acidic and basic surface functi...

Catalytic wet oxidation of lactose

Catalytic Wet Oxidation of Ammonia Solution with Platinum- Palladium-rhodium Composite Oxide Catalyst

This study adopted high concentration aqueous solutions of ammonia for use in catalytic liquid-phase oxidation in a trickle-bed reactor with platinum-group metals (platinum-palladiumrhodium), prepared by the co-precipitation of H2PtCl6, Pd(NO3)3 and Rh(NO3)3. The experimental results revealed that a minimal amount of ammonia was removed from the solution by wet oxidation in the absence of any c...

Green oxidation with aqueous hydrogen peroxide.

Aqueous H2O2 is an ideal oxidant, when coupled with a tungstate complex and a quaternary ammonium hydrogensulfate as an acidic phase-transfer catalyst. It oxidizes alcohols, olefins, and sulfides under organic solvent- and halide-free conditions in an economically, technically, and environmentally satisfying manner.