Oxidant reduction by manipulation and/or treatment of aqueous ac

Details Oxidant reduction by manipulation and/or treatment of aqueous ac Oxidant reduction by manipulation and/or treatment of aqueous ac

1998-05-13

1999-02-09

Richter, Johann

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitriles

C07C25300

Patent

active

058697306

ABSTRACT:
A process for manufacturing an unsaturated mononitrile selected from the group consisting of acrylonitrile and methacrylonitrile comprising reacting an olefin selected from the group consisting of propylene and isobutylene, ammonia and oxygen in a reactor zone in the presence of a catalyst to produce a reactor effluent containing the corresponding unsaturated mononitrile, transferring the reactor effluent containing the unsaturated mononitrile to a quench column wherein the reactor effluent containing the unsaturated mononitrile is contacted with at least a first aqueous stream to cool the reactor effluent, transferring the cooled reactor effluent containing the unsaturated mononitrile to an absorption column wherein the reactor effluent containing unsaturated mononitrile is contacted with at least a second aqueous stream to separate and remove the unsaturated mononitrile as a bottom stream from the absorption column, transferring the bottom stream containing the unsaturated mononitrile to a recovery and purification section where the unsaturated mononitrile is recovered and purified, and recycling at least one aqueous process stream to improve the efficiency of the process wherein the improvement comprises treating at least one aqueous stream before recycling into the process stream to reduce the pH thereby reducing the amount of trace impurities present in the aqueous recycle stream.

REFERENCES:
patent: 3936360 (1976-02-01), Wu

Affiliated with

Also associated with

Rating

Oxidant reduction by manipulation and/or treatment of aqueous ac does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oxidant reduction by manipulation and/or treatment of aqueous ac, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxidant reduction by manipulation and/or treatment of aqueous ac will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1950282