公开(公告)号：KR840001470B1

公开(公告)日：1984-09-28

申请号：KR800003042

申请日：1980-07-30

Applicant: STANDARD OIL CO

Inventor： LANDIS NORRIS J

IPC: C07C255/08 ,  B01D20060101 ,  B01D3/00 ,  B01D3/10 ,  B01D3/40 ,  C07C20060101 ,  C07C67/00 ,  C07C253/00 ,  C07F3/00 ,  C08F120/44 ,  C07C121/32

公开(公告)号：CA1134863A

公开(公告)日：1982-11-02

申请号：CA350481

申请日：1980-04-23

Applicant: STANDARD OIL CO OHIO

Inventor： LANDIS NORRIS J

IPC: C07C255/08 ,  B01D20060101 ,  B01D3/00 ,  B01D3/10 ,  B01D3/40 ,  C07C20060101 ,  C07C67/00 ,  C07C253/00 ,  C07F3/00 ,  C08F120/44 ,  C07C121/32

Abstract: (5150) ACRYLONITRILE PURIFICATION A method for purifying acrylonitrile resulting in capital and operating cost savings consists of distilling a solution of acrylonitrile and impurities in a distillation column under vacuum, and removing the purified acrylonitrile as a vaporous sidestream from the column.

公开(公告)号：CS228134B2

公开(公告)日：1984-05-14

申请号：CS536380

申请日：1980-07-31

Applicant: STANDARD OIL CO OHIO

Inventor： LANDIS NORRIS J

IPC: C07C255/08 ,  B01D20060101 ,  B01D3/00 ,  B01D3/10 ,  B01D3/40 ,  C07C20060101 ,  C07C67/00 ,  C07C253/00 ,  C07F3/00 ,  C08F120/44 ,  C07C121/32

Abstract: A process for separating acrylonitrile from a solution containing acrylonitrile, water and impurities. Conventionally such a solution is fed to a drying column and then to a product column. The need for a drying column, by feeding the solution direct to a product column is eliminated. In an embodiment an overhead stream from a recovery column (118) is fed to an HCN column (126) for removal of HCN. The solution is then fed to the top a product column (150) which contains between 30 and 60 trays, a sidestream of purified acrylonitrile being removed through a line (159) located in the lower part of the column.

公开(公告)号：RO80861A

公开(公告)日：1983-02-01

申请号：RO10186480

申请日：1980-08-01

Applicant: STANDARD OIL CO OHIO

Inventor： LANDIS NORRIS J

IPC: B01D20060101 ,  C07C255/08 ,  B01D3/00 ,  B01D3/10 ,  B01D3/40 ,  C07C20060101 ,  C07C67/00 ,  C07C253/00 ,  C07F3/00 ,  C08F120/44 ,  C07C121/32

Abstract: A process for separating acrylonitrile from a solution containing acrylonitrile, water and impurities. Conventionally such a solution is fed to a drying column and then to a product column. The need for a drying column, by feeding the solution direct to a product column is eliminated. In an embodiment an overhead stream from a recovery column (118) is fed to an HCN column (126) for removal of HCN. The solution is then fed to the top a product column (150) which contains between 30 and 60 trays, a sidestream of purified acrylonitrile being removed through a line (159) located in the lower part of the column.