Effects of Assisting Solvents on Purification Efficiency in the Layer Melt Crystallization of Glycerol.

ABSTRACT: The efficiency of layer melt crystallization for the selective separation of glycerol from a glycerol-diethylene glycol mixture containing 4 wt % of diethylene glycol was evaluated using solvent-free and solvent-aided approaches. The effect of 1-butanol and the binary solvent of 1-butanol and acetone with a total molar composition of 25 mol % on the crystal growth kinetics and the purity of the final product was studied at different undercooling degrees and crystallization yields. The melting point temperature of the mixtures was predicted by using the modified UNIFAC Dortmund model. The addition of both a single and binary solvents significantly increased the crystal growth rate and purity of the final product compared to crystallization from the solvent-free mixture. Additionally, higher

SUBMITTER: Ila M 

PROVIDER: S-EPMC10921978 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature