Liquid–Liquid
Equilibria of Benzene + <i>n</i>‑Heptane + <i>N</i>,<i>N</i>‑Dimethylformamide and Benzene
+ <i>n</i>‑Heptane
+ <i>N</i>,<i>N</i>‑Dimethylformamide +
Ammonium Thiocyanate
- Publication date
- Publisher
Abstract
The liquid–liquid equilibrium
data for the systems including
benzene + <i>n</i>-heptane + <i>N</i>,<i>N</i>-dimethylformamide (DMF) and benzene + <i>n</i>-heptane + DMF + ammonium thiocyanate were measured experimentally
at 298.15 K or 303.15 K and atmospheric pressure. The selectivity
coefficients of the complex solvent (DMF + NH<sub>4</sub>SCN) are
generally higher than those of DMF, derived from the tie-line data.
For the high selectivity that is from 15.03 to 69.90 at 298.15 K or
from 15.04 to 61.02 at 303.15 K, the complex solvent, DMF + NH<sub>4</sub>SCN, could be used as an extracting agent to separate benzene
from <i>n</i>-heptane