Process for recovering .epsilon.-caprolactam from an...

Details Process for recovering .epsilon.-caprolactam from an... Process for recovering .epsilon.-caprolactam from an...

C - Chemistry, Metallurgy

07

D

260/240.95

C07D 223/10 (2006.01) C07D 201/16 (2006.01)

Patent

CA 1085836

ABSTRACT OF THE DISCLOSURE The process is directed to recovering .epsilon.-caprolactam from a reaction mixture containing .epsilon.-caprolactum and sulfuric acid by separating the caprolactam from the sulfuric acid by an extraction. Extraction includes the steps of neutralizing a part of said sulfuric acid with ammonia, ammonium sulfate, ammonium hydrogen sulfate or mixture thereof, to form an ammonium salt of at least part of said sulfuric acid as a neutralization product, thermally decomposing a part of the ammonium salt formed to produce a gaseous mixture of ammonia and sulfur dioxide and contacting another portion of the neutralization product with said gaseous mixture to produce ammonium hydrogen sulfate, ammonium sulfate or both, and neutralizing at least a part of the sulfuric acid in the reaction mixture with said ammonium hydrogen sulfate, ammonium sulfate or both. -1-

281360

Affiliated with

Also associated with

Rating

Process for recovering .epsilon.-caprolactam from an... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for recovering .epsilon.-caprolactam from an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for recovering .epsilon.-caprolactam from an... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-658224