Kochetkov S.P.

INFLUENCE OF CALCIUM AND COPPER FERRITES ON ACTIVITY AND SELECTIVITY OF MEDIUM-TEMPERATURE CO CONVERSION CATALYSTS

Process of mechanochemical synthesis of calcium and copper ferrites was studied by X-ray and XRD analysis, thermogravimetry, IR spectroscopy and gas chromatography methods. Their high catalytic activity in reaction of carbon monoxide medium-temperature conversion by water vapour was shown. The composition of byproducts in the reaction of CO conversion and the concentration of impurities in condensate was calculated. The rheological properties of calcium and copper ferrites, as well as a catalyst on their basis, were studied.

Key words: calcium ferrite, copper ferrite, activity, selectivity, catalyst, carbon monoxide con-version

2016, Т. 59, № 3, Стр. 43-48

SORPTION OF RARE-EARTH METALS FROM NO EVAPORATED DIHYDRATE PHOSPHORIC ACID ON MACROPOROUS STRONGLY ACIDIC CATIONITE

The kinetic and dynamic characteristics of the sorption of rare earths metals (REE) from no evaporated extration phosphoric acid (EPA) of dihydrate production on macroporous strongly acidic cation Rurolite C150 were investigated. The process of sorption of rare earth metals was established to take place in the external diffusion region.

Key words: sorption, phosphoric acid, macroporous cation, rare earth elements

2016, Т. 59, № 4, Стр. 50-54
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