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

Mitra Ila, Kim Miikki, Marjatta Louhi-Kultanen*

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

13 Lataukset (Pure)

Abstrakti

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 crystal growth rates and product purity were observed in the binary solvent system compared to those in the single solvent system at the same degree of undercooling. The second stage of solvent-aided crystallization resulted in glycerol with a purity above 99.5 wt %, depending on the type of solvent used and the rate of crystal growth.

AlkuperäiskieliEnglanti
Sivut1952–1958
JulkaisuCrystal Growth and Design
Vuosikerta24
Numero5
Varhainen verkossa julkaisun päivämäärä21 helmik. 2024
DOI - pysyväislinkit
TilaJulkaistu - 6 maalisk. 2024
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Sormenjälki

Sukella tutkimusaiheisiin 'Effects of Assisting Solvents on Purification Efficiency in the Layer Melt Crystallization of Glycerol'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

Siteeraa tätä