language-icon Old Web
English
Sign In

Solvent-removing method

2013 
The invention relates to a removing method of a solvent used for producing sucrose aromatic carboxylic esters. The method comprises the steps of using more than one pressure-reducing drying machine to enable the pressure in the drying machine and/or enable the heating temperature to have change of more than two stages; conducting a series of pressure-reducing and drying process on a mixture of the sucrose aromatic carboxylic esters and the solvent. The pressure in the drying machine of the first stage is below the atmospheric pressure, and the heating temperature is above 20 DEG C and below 250 DEG C. At the final stage, pressure in the drying machine is below 10kPa.abs, and the heating temperature is above 80 DEG C and below 250 DEG C. Through the removing method of the solvent, sucrose aromatic carboxylic esters with little coloring and little solvent residue can be obtained.
    • Correction
    • Source
    • Cite
    • Save
    • Machine Reading By IdeaReader
    0
    References
    0
    Citations
    NaN
    KQI
    []