On September 15, 2022, Sadier, Achraf; Paul, Sebastien; Marceau, Eric; Wojcieszak, Robert published an article.Application In Synthesis of SweetPearlR P300 DC Maltitol The title of the article was Ni-Fe alloying enhances the efficiency of the maltose hydrogenation process: The role of surface species and kinetic study. And the article contained the following:
Unlike the conversion of monosaccharides to the corresponding polyols, the production of maltitol by hydrogenation of maltose has been seldom investigated in the literature, despite its industrial importance. Monometallic Ni catalysts are known for their lack of stability, and the objective of the present paper is to determine through a kinetic study, to what extent a Ni-Fe/SiO2 bimetallic catalyst would outperform a Ni/SiO2 catalyst in the aqueous phase hydrogenation of maltose. The effect of reaction parameters (T = 80-150°C, PH2 = 20-40 bar, maltose mass fraction in water = 4.4-17.5 wt%) on activity, selectivity, and stability was examined In all cases, maltitol was the major product, with a carbon balance higher than 98%, but maltose hydrolysis to glucose occurred in the upper range of temperature In order to preserve both the catalyst selectivity and stability, a temperature of 80°C was selected for the kinetic study. The adsorption constant of maltose and the apparent hydrogenation rate constant for the Ni-Fe catalyst were both larger by a factor 2-3 compared with the Ni catalyst, indicating a stronger interaction of maltose with the Ni-Fe surface. Another major difference was a reaction order of 0.5 with respect to the hydrogen pressure on Ni-Fe/SiO2 compared with a near zero-order on Ni/SiO2. The activity of the Ni-Fe catalyst remained constant for three runs of reaction without major structural changes, while the Ni catalyst deactivated by transforming to a phyllosilicate phase. The experimental process involved the reaction of SweetPearlR P300 DC Maltitol(cas: 585-88-6).Application In Synthesis of SweetPearlR P300 DC Maltitol
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