The extractive distillation separation method for 3-ETHYLTOLUENE and p-toluene comprises the following steps: using dibutyl phthalate as the solvent for extractive distillation, the solvent is mixed with the raw material 3-ETHYLTOLUENE and p-toluene in a certain ratio and added to the extractive distillation column; after separation, the top of the column contains high-purity 3-ETHYLTOLUENE (≥97%), and the bottom of the column contains the solvent dibutyl phthalate + p-toluene; the bottom material is sent to a solvent regeneration column for vacuum distillation, and the top product is p-toluene (≥92%); the bottom solvent dibutyl phthalate can be returned to the extractive distillation column for recycling.
3-Ethyltoluene is generally used as a model alkylbenzene derivative for bond activation and C(sp3)-H functionalization studies.
It is used in the formation of 3-ethylsalicylic acid from 3-Ethyltoluene by Pseudomonas ovalis.
ChEBI: A derivative of toluene bearing an additional ethyl substituent at position 3.
Moderately toxic. Low toxicity by inhalation.
