Method for the recovery of pentaerythritol from the residual mixtures of the synthesis from acetaldehyde and formaldehyde.

摘要

A method for the recovery of pentaerythritol from a residual mixture of the synthesis from acetaldehyde and formaldehyde, said mixture containing, besides other byproducts, greater amounts of formales, said method being characterized by a transacetalization of said formales, achieved by contact of the residual mixture with a saturated aliphatic alcohol having from 1 to 4 carbon atoms.