Process for solvent recovery

US5618432A · kind A · utility

Assignee

• Hoechst Agteingesellschaft · DE

Inventors

• Siegfried Rewitzer · Ihrlerstein, DE
• Peter Roth · Eppstein, DE

Key dates

• Filing date: Jan 18, 1994
• Grant date: Apr 8, 1997
• Expiry date: Jan 18, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S55/30
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for recovery and reuse of liquids used as solvents and diluents in a chemical reaction and/or the processing of substances, the process include the introduction of a solvent, a diluent, and a substance to be reacted and/or processed into a processing plant, feeding a used mixture of solvent, diluent and residues into a recovery plant, separating the solvent, diluent and residue resulting from the chemical reaction and/or processing of substances, recycling the solvent and diluent back to the processing plant, ejecting residues, and ejecting the treated substances. The apparatus for carrying out the process is also described.