NL7513821A - (Meth)acrylonitrile recovery and purificn from ammoxidn effluent - with recycle of prod column bottoms to form quench liq in quench system - Google Patents

(Meth)acrylonitrile recovery and purificn from ammoxidn effluent - with recycle of prod column bottoms to form quench liq in quench system

Info

Publication number
NL7513821A
NL7513821A NL7513821A NL7513821A NL7513821A NL 7513821 A NL7513821 A NL 7513821A NL 7513821 A NL7513821 A NL 7513821A NL 7513821 A NL7513821 A NL 7513821A NL 7513821 A NL7513821 A NL 7513821A
Authority
NL
Netherlands
Prior art keywords
quench
acrylonitrile
effluent
recovery
liq
Prior art date
Application number
NL7513821A
Other languages
Dutch (nl)
Original Assignee
Standard Oil Co Ohio
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Standard Oil Co Ohio filed Critical Standard Oil Co Ohio
Priority to NL7513821A priority Critical patent/NL7513821A/en
Publication of NL7513821A publication Critical patent/NL7513821A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C07C253/32—Separation; Purification; Stabilisation; Use of additives
    • C07C253/34—Separation; Purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

In the recovery and purification of acrylonitrile produced by the reaction of propylene, O2 and NH3 in the presence of an ammoxidation catalyst, which consists of (a) contacting the ammoxidation reactor effluent with an aq. quench liquid in a quench system to produce a gaseous quench effluent having a temp. of 90-230 degrees F, (b) removing this effluent and absorbing it in water to form a soln., (c) distilling most of the by-products of the ammoxidation reaction and most of the water from the soln. to obtain a liquid stream contg. crude acrylonitrile, and (d) distilling the crude acrylonitrile to obtain a gaseous overhead stream of product quality acrylonitrile and a bottoms stream contg. acrylonitrile and impurities and having a pH of 3-5, the improvement comprises recycling part of the liq. bottoms stream obtd. in step(d) as at least part of the quench liquid in step (a). This improvement may also be applied to the recovery and purification of methacylonitrile by ammoxidation of isobutylene. There is no need for the fractional distillation column of prior art. and the efficiency of the recovery and purification system is improved.
NL7513821A 1975-11-26 1975-11-26 (Meth)acrylonitrile recovery and purificn from ammoxidn effluent - with recycle of prod column bottoms to form quench liq in quench system NL7513821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7513821A NL7513821A (en) 1975-11-26 1975-11-26 (Meth)acrylonitrile recovery and purificn from ammoxidn effluent - with recycle of prod column bottoms to form quench liq in quench system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7513821A NL7513821A (en) 1975-11-26 1975-11-26 (Meth)acrylonitrile recovery and purificn from ammoxidn effluent - with recycle of prod column bottoms to form quench liq in quench system

Publications (1)

Publication Number Publication Date
NL7513821A true NL7513821A (en) 1977-05-31

Family

ID=19824925

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7513821A NL7513821A (en) 1975-11-26 1975-11-26 (Meth)acrylonitrile recovery and purificn from ammoxidn effluent - with recycle of prod column bottoms to form quench liq in quench system

Country Status (1)

Country Link
NL (1) NL7513821A (en)

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BI The patent application has been withdrawn