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:
Apr. 10, 1984
Filed:
Sep. 13, 1982
Applicant:
Inventors:
Rolf Bentz, Basel, CH;
Christian Schori, Muttenz, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55 85 ; 55 48 ; 208333 ;
Abstract
The invention relates to a process for recovering preferably water-insoluble organic substances such as nitrobenzene, dichlorobenzene and/or trichlorobenzene by absorption from spent air vapors which contain these substances. The process comprises passing the spent air vapors through a high-boiling organic liquid, preferably polyethylene glycol, subsequently adding water to the saturated absorbent and separating the recovered organic substance from the absorbent/water mixture after phase separation.