The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 1986
Filed:
Aug. 30, 1984
Wolfgang Litzenburger, Hassloch, DE;
Gerhard Janisch, Ludwigshafen, DE;
BASF Aktiengesellschaft, , DE;
Abstract
A mixture which consists of organic compounds and water and is obtained in solvent recovery by adsorption and desorption is separated by a process in which the water is removed from the said mixture (3) in an extraction column (1) by means of a highly concentrated alkali solution (4) (extracting agent), the resulting dilute alkali solution (6) (extracting agent) is then evaporated down in an evaporator (7) by means of added steam (8), the steam (9) formed in this procedure is fed to the adsorbers (2) for desorption of the organic compounds, the resulting highly concentrated alkali solution (4) is recycled to the extraction column (1), and the anhydrous organic compounds (5) are removed.