Purification of crude dinitrotoluene by extraction with C.sub.5 -C.sub.8 alkanes

US3949008A · kind A · utility

Assignee

• The United States of America as represented by the Secretary of the Army · US

Inventors

• David Rosenblatt · Philadelphia, US
• William H. Dennis · Bartlesville, US

Key dates

• Filing date: Dec 5, 1974
• Grant date: Apr 6, 1976
• Expiry date: Dec 5, 1994

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C201/16
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

2,4- AND 2,6-Dinitrotoluenes mixed with small amounts of isomeric dinitrouene impurities are extracted with an alkane of 5 to 8 carbon atoms, whereby the isomeric dinitrotoluene impurities are removed.