公开(公告)号：KR840000847B1

公开(公告)日：1984-06-19

申请号：KR800001073

申请日：1980-03-14

Applicant: STANDARD OIL CO

Inventor： ODOM PAUL S

IPC: C07C253/34 ,  B01D3/40 ,  H03F1/30 ,  H04N5/52 ,  C07C121/32

公开(公告)号：CA1180300A

公开(公告)日：1985-01-02

申请号：CA341076

申请日：1979-12-03

Applicant: STANDARD OIL CO OHIO

Inventor： ODOM PAUL S

IPC: C07C255/03 ,  B01D20060101 ,  B01D3/00 ,  B01D3/14 ,  B01D3/26 ,  B01D3/40 ,  B01D59/26 ,  C07C20060101 ,  C07C67/00 ,  C07C253/00 ,  C07C255/08 ,  C08F120/44 ,  C07C120/00

Abstract: ENERGY EFFICIENT RECOVERY OF ACRYLONITRILE Substantial operating cost savings are realized in the recovery of acrylonitrile from an aqueous solution containing acrylonitrile by using the recovery column bottoms stream to provide heat to one or more distillation columns in the process.

公开(公告)号：DD147501A5

公开(公告)日：1981-04-08

申请号：DD21724379

申请日：1979-11-29

Applicant: STANDARD OIL CO

Inventor： ODOM PAUL S

IPC: C07C255/03 ,  B01D20060101 ,  B01D3/00 ,  B01D3/14 ,  B01D3/26 ,  B01D3/40 ,  B01D59/26 ,  C07C20060101 ,  C07C67/00 ,  C07C253/00 ,  C07C255/08 ,  C08F120/44

Abstract: A process for the recovery and purification of acrylonitrile form an aqueous solution of acrylonitrile, acetonitrile, HCN and impurities, comprising the steps of:… a) distilling the aqueous solution of an extractive distillation column with solvent water to produce an overhead stream of acrylonitrile, HCN and water, and a bottoms stream of water and impurities, and… b) distilling the overhead stream of (a) in one or more distillation columns to recover acrylonitrile, characterised in that the bottoms stream of (a) is passed in indirect heat exchange relationship with one or more additional columns to provide heat for distillation. … The process according to the invention provides substantial savings in operating costs.

公开(公告)号：CS223829B2

公开(公告)日：1983-11-25

申请号：CS839579

申请日：1979-12-04

Applicant: STANDARD OIL CO OHIO

Inventor： ODOM PAUL S

IPC: C07C255/03 ,  B01D20060101 ,  B01D3/00 ,  B01D3/14 ,  B01D3/26 ,  B01D3/40 ,  B01D59/26 ,  C07C20060101 ,  C07C67/00 ,  C07C253/00 ,  C07C255/08 ,  C08F120/44 ,  C07C121/32

Abstract: A process for the recovery and purification of acrylonitrile form an aqueous solution of acrylonitrile, acetonitrile, HCN and impurities, comprising the steps of:… a) distilling the aqueous solution of an extractive distillation column with solvent water to produce an overhead stream of acrylonitrile, HCN and water, and a bottoms stream of water and impurities, and… b) distilling the overhead stream of (a) in one or more distillation columns to recover acrylonitrile, characterised in that the bottoms stream of (a) is passed in indirect heat exchange relationship with one or more additional columns to provide heat for distillation. … The process according to the invention provides substantial savings in operating costs.

公开(公告)号：EG14085A

公开(公告)日：1983-03-31

申请号：EG71779

申请日：1979-12-03

Applicant: STANDARD OIL CO

Inventor： ODOM PAUL S

IPC: C07C255/03 ,  B01D20060101 ,  B01D3/00 ,  B01D3/14 ,  B01D3/26 ,  B01D3/40 ,  B01D59/26 ,  C07C20060101 ,  C07C67/00 ,  C07C253/00 ,  C07C255/08 ,  C08F120/44

Abstract: A process for the recovery and purification of acrylonitrile form an aqueous solution of acrylonitrile, acetonitrile, HCN and impurities, comprising the steps of:… a) distilling the aqueous solution of an extractive distillation column with solvent water to produce an overhead stream of acrylonitrile, HCN and water, and a bottoms stream of water and impurities, and… b) distilling the overhead stream of (a) in one or more distillation columns to recover acrylonitrile, characterised in that the bottoms stream of (a) is passed in indirect heat exchange relationship with one or more additional columns to provide heat for distillation. … The process according to the invention provides substantial savings in operating costs.

公开(公告)号：HU184182B

公开(公告)日：1984-07-30

申请号：HUSA003213

申请日：1979-12-04

Applicant: STANDARD OIL CO OHIO

Inventor： ODOM PAUL S

IPC: C07C255/03 ,  B01D20060101 ,  B01D3/00 ,  B01D3/14 ,  B01D3/26 ,  B01D3/40 ,  B01D59/26 ,  C07C20060101 ,  C07C67/00 ,  C07C253/00 ,  C07C255/08 ,  C08F120/44 ,  C07C121/32

Abstract: A process for the recovery and purification of acrylonitrile form an aqueous solution of acrylonitrile, acetonitrile, HCN and impurities, comprising the steps of:… a) distilling the aqueous solution of an extractive distillation column with solvent water to produce an overhead stream of acrylonitrile, HCN and water, and a bottoms stream of water and impurities, and… b) distilling the overhead stream of (a) in one or more distillation columns to recover acrylonitrile, characterised in that the bottoms stream of (a) is passed in indirect heat exchange relationship with one or more additional columns to provide heat for distillation. … The process according to the invention provides substantial savings in operating costs.

公开(公告)号：RO79321A

公开(公告)日：1983-02-01

申请号：RO9942679

申请日：1979-12-03

Applicant: STANDARD OIL CO OHIO

Inventor： ODOM PAUL S

IPC: C07C255/03 ,  B01D20060101 ,  B01D3/00 ,  B01D3/14 ,  B01D3/26 ,  B01D3/40 ,  B01D59/26 ,  C07C20060101 ,  C07C67/00 ,  C07C253/00 ,  C07C255/08 ,  C08F120/44 ,  C07C121/32

Abstract: A process for the recovery and purification of acrylonitrile form an aqueous solution of acrylonitrile, acetonitrile, HCN and impurities, comprising the steps of:… a) distilling the aqueous solution of an extractive distillation column with solvent water to produce an overhead stream of acrylonitrile, HCN and water, and a bottoms stream of water and impurities, and… b) distilling the overhead stream of (a) in one or more distillation columns to recover acrylonitrile, characterised in that the bottoms stream of (a) is passed in indirect heat exchange relationship with one or more additional columns to provide heat for distillation. … The process according to the invention provides substantial savings in operating costs.