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:
Jan. 06, 1976
Filed:
Dec. 05, 1974
Applicant:
Inventors:
David H Rosenblatt, Baltimore, MD (US);
William H Dennis, Jr, Braddock Heights, MD (US);
Assignee:
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
260645 ;
Abstract
2,4- AND 2,6-Dinitrotoluenes are separated from mixtures thereof with small mounts of isomeric dinitrotoluene impurities by suspending the mixture in an aqueous solution containing a small amount of an alkali metal disulfide. The isomeric dinitrotoluene impurities are thereby converted to products soluble in the aqueous solution from which the 2,4- and 2,6-dinitrotoluenes can be recovered in excellent yield.