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:
Feb. 20, 1996
Applicant:
Inventors:
Ludwig Schuster, Limburgerhof, DE;
Hanns-Helge Stechl, Mannheim, DE;
Dietrich Wolff, Plankstadt, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/78 ;
U.S. Cl.
CPC ...
C02F 1/78 ;
Abstract
Aromatic nitro compounds in waste waters from nitrobenzene production plants are degraded by treatment with ozone at 60-100° C. 1.5-10 bar and pH 3 to 12.