FR2332977A1 - (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
FR2332977A1
FR2332977A1 FR7536192A FR7536192A FR2332977A1 FR 2332977 A1 FR2332977 A1 FR 2332977A1 FR 7536192 A FR7536192 A FR 7536192A FR 7536192 A FR7536192 A FR 7536192A FR 2332977 A1 FR2332977 A1 FR 2332977A1
Authority
FR
France
Prior art keywords
quench
acrylonitrile
effluent
recovery
liq
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7536192A
Other languages
French (fr)
Other versions
FR2332977B1 (en
Inventor
Hsin Chih Wu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Standard Oil Co
Original Assignee
Standard Oil Co
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 filed Critical Standard Oil Co
Priority to FR7536192A priority Critical patent/FR2332977A1/en
Publication of FR2332977A1 publication Critical patent/FR2332977A1/en
Application granted granted Critical
Publication of FR2332977B1 publication Critical patent/FR2332977B1/fr
Granted legal-status Critical Current

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.
FR7536192A 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 Granted FR2332977A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7536192A FR2332977A1 (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
FR7536192A FR2332977A1 (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 (2)

Publication Number Publication Date
FR2332977A1 true FR2332977A1 (en) 1977-06-24
FR2332977B1 FR2332977B1 (en) 1980-09-12

Family

ID=9162941

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7536192A Granted FR2332977A1 (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
FR (1) FR2332977A1 (en)

Also Published As

Publication number Publication date
FR2332977B1 (en) 1980-09-12

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Legal Events

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