Monomer recovery process
AssigneeDow Global Technologies LLC
InventorsAbu Mokhtarul Hassan, Dennis W. Jewell, Sven Claessens
Life of this patent
Estimating the term…
Abstract
A process for recovering monomers and solvent present in a waste stream including the steps of: (a) providing a waste feed stream containing monomers, solvent and impurities; (b) subjecting the waste feed stream of step (a) to a separation process under conditions for separating the monomers and solvent from the impurities of the waste stream; (c) recovering the monomers and solvent in one or more streams; and (d) passing the one or more of the monomer and solvent streams from step (c) to further processing.
Claims10
A process for recovering monomers and solvent present in a waste stream comprising the steps of:
- (a) providing a waste feed stream containing monomers, solvent and impurities;
- (b) subjecting the waste feed stream of step (a) to a separation process under conditions for separating the monomers and solvent from the impurities of the waste stream;
- (c) recovering the monomers and solvent in one or more streams;
- and
- (d) passing the one or more of the monomers and solvent streams from step (c) to further processing.
A process for separating acrylonitrile from water comprising the steps of:
- (A) feeding an azeotrope composition of acrylonitrile and water to an extractive distillation column;
- and
- (B) distilling the acrylonitrile from water by extractive distillation in the extractive distillation column using an extraction solvent.
Dependencies are inferred from the claim text.