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. 12, 2001
Filed:
Jan. 05, 1999
Applicant:
Inventors:
Reinhard Albert Sulzbach, Burghausen, DE;
Rainer Grasberger, Garching, DE;
Rik A. Brandenburg, Gorinchem, NL;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11B 1/300 ;
U.S. Cl.
CPC ...
C11B 1/300 ;
Abstract
The process for the recovery of highly fluorinated carboxylic acids from off-gas streams, in which the off-gas is brought into contact with an alkaline washing solution of density >1.15 g/cm,so that the salt of the highly fluorinated carboxylic acid settles out as a separate phase, proceeds particularly advantageously when the alkaline washing solution is a potassium carbonate solution.