Method for production of hydroxylamine sulfate in the...

Details Method for production of hydroxylamine sulfate in the... Method for production of hydroxylamine sulfate in the...

C - Chemistry, Metallurgy

07

D

C07D 223/10 (2006.01) C07D 201/06 (2006.01) C07D 201/10 (2006.01)

Patent

CA 2292904

An improvement in the conventional process for the production of caprolactam. The process involves: (a) reacting air with ammonia gas in an ammonia conversion zone to produce nitric oxide; (b) oxidizing a portion of the nitric oxide to nitrogen dioxide to produce an NO x-rich process gas stream; (c) reacting the NO x-rich stream with ammonium carbonate in a nitrating zone to produce ammonium nitrite; (d) reducing the ammonium nitrite to hydroxylamine diammonium sulfate; (e) hydrolyzing the hydroxylamine diammonium sulfate to hydroxylamine sulfate; (f) oximating the hydroxylamine sulfate with cyclohexanone to produce cyclohexanone oxime; and (g) converting the cyclohexanone oxime to caprolactam. The process is improved by adding supplemental oxygen downstream of the ammonia conversion zone to increase the quantity and rate of formation of nitrogen dioxide in the NO x-rich process gas stream.

Affiliated with

Also associated with

Rating

Method for production of hydroxylamine sulfate in the... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for production of hydroxylamine sulfate in the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for production of hydroxylamine sulfate in the... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1560702