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:
Oct. 15, 1991
Filed:
Oct. 22, 1990
Applicant:
Inventors:
Peter C Imm, Sulphur, LA (US);
Allan B Quakenbush, Lake Charles, LA (US);
Assignee:
Olin Corporation, Cheshire, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568934 ; 568939 ; 568940 ;
Abstract
Described herein is a continuous process for preparing dinitrotoluene by reacting toluene with dilute nitric acid to produce mononitrotoluene, then reacting the mononitrotoluene with concentrated nitric acid to produce dinitrotoluene.