BG60268B2 - Continuous acetonitrile recovery process - Google Patents

Continuous acetonitrile recovery process

Info

Publication number
BG60268B2
BG60268B2 BG55361A BG5536182A BG60268B2 BG 60268 B2 BG60268 B2 BG 60268B2 BG 55361 A BG55361 A BG 55361A BG 5536182 A BG5536182 A BG 5536182A BG 60268 B2 BG60268 B2 BG 60268B2
Authority
BG
Bulgaria
Prior art keywords
acetonitrile
azeotrope
water
distilling
atm
Prior art date
Application number
BG55361A
Other languages
Bulgarian (bg)
Other versions
BG60268B1 (en
Inventor
Robert Presson
Hsin-Chin Wu
Edward Sockell
Original Assignee
The 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 The Standard Oil Co. filed Critical The Standard Oil Co.
Priority to BG055361A priority Critical patent/BG60268B1/en
Publication of BG60268B2 publication Critical patent/BG60268B2/en
Publication of BG60268B1 publication Critical patent/BG60268B1/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The process is used for the continuous recovering of acetonitrile from unpurified mixtures. It is used for the preparation of a product having high purity - up to 99.9%. The recovering of the acetonitrile comprises: distilling the crude acetonitrile in a first distillation zone at a pressure of about 1 atm. for the removal of HCN and the production of a first acetonitrile /water azeotrope and a first bottoms product containing water; distilling the first azeotrope in second distillation zone at a pressure less than 1 atm., in other to separate the first azeotrope into a second bottoms product containing water and a second acetonitrile/water having azeotrope a greater acetonitrile cincentration than the first azeotrope; distilling the second acetonitrile/water azeotrope in a third distillation zone at a pressure above 1 atm., for the production of a third acetonitrile/water, azeotrope containing substantially all of the water in the second azeotrope, a third bottoms settling product containing acetonenitrile and heavy organic, and a side stream flow containing the highly pure acetonitrile.
BG055361A 1982-02-12 1982-02-12 CONTINUOUS METHOD FOR ACETONITRILE EXTRACTION BG60268B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BG055361A BG60268B1 (en) 1982-02-12 1982-02-12 CONTINUOUS METHOD FOR ACETONITRILE EXTRACTION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG055361A BG60268B1 (en) 1982-02-12 1982-02-12 CONTINUOUS METHOD FOR ACETONITRILE EXTRACTION

Publications (2)

Publication Number Publication Date
BG60268B2 true BG60268B2 (en) 1994-03-31
BG60268B1 BG60268B1 (en) 1994-03-31

Family

ID=3910292

Family Applications (1)

Application Number Title Priority Date Filing Date
BG055361A BG60268B1 (en) 1982-02-12 1982-02-12 CONTINUOUS METHOD FOR ACETONITRILE EXTRACTION

Country Status (1)

Country Link
BG (1) BG60268B1 (en)

Also Published As

Publication number Publication date
BG60268B1 (en) 1994-03-31

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