Recovery of nitric acid from nitration processes

Details Recovery of nitric acid from nitration processes Recovery of nitric acid from nitration processes

C - Chemistry, Metallurgy

07

C

C07C 205/06 (2006.01) C07C 201/16 (2006.01)

Patent

CA 2173381

A process for the removal and recovery of nitric acid, sulfuric acid and nitrous oxides (NO X) from the crude dinitrotoluene (DNT) obtained by nitrating with an acid, a benzene derivative selected from the group consisting of toluene or mononitrotoluene (MNT) after separation of said dinitrotoluene from said nitrating acid, wherein said crude dinitrotoluene is extracted in a plurality of steps whereby a dilute aqueous solution of nitric, sulfuric and nitrous acids countercurrently contacts said crude dinitrotoluene, said volume ratio of said dinitrotoluene to said aqueous solution being between 1:3 and 10:1, said extraction steps resulting in the formation of an aqueous extract which is blended directly into said nitrating acid for re-use in the acid nitration of said benzene derivative.

Affiliated with

Also associated with

Rating

Recovery of nitric acid from nitration processes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recovery of nitric acid from nitration processes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recovery of nitric acid from nitration processes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1897986