Factors Affecting the Catalytic Hydrogenation of D-Glucose. Part IV. Effect of Solvent-Catalyst Concentration at High Pressure, Temperature and pH 8 and the Re-use of Catalyst†

In ethanolic solution the rate of hydrogenation of glucose was highly increased. When the hydrogenation was carried out in aqueous solution at pH 8, 170 °C and 60 at pressure the time required for complete hydrogenation decreased from 6 to 1 h. The re-use of catalyst was also investigated.