公开(公告)号：US3115527A

公开(公告)日：1963-12-24

申请号：US6490060

申请日：1960-10-25

Applicant: MINISTERUL IND PETROLULUI

Inventor： IOSIF DRIMUS ,  CLAUDIU MATASA GHEORGHE ,  MARCEL KLANG

IPC: B01J10/02 ,  B01J19/00 ,  B01J19/18 ,  B01J19/26 ,  C01B21/46 ,  C07B43/02 ,  C07C201/08 ,  C07C205/02

CPC classification number: B01J19/26 ,  B01J10/02 ,  B01J19/0013 ,  B01J19/1806 ,  B01J2219/00108 ,  B01J2219/00245 ,  B01J2219/1946 ,  C01B21/46 ,  C07B43/02 ,  C07C201/08 ,  C07C205/02

公开(公告)号：US3173961A

公开(公告)日：1965-03-16

申请号：US29042463

申请日：1963-06-25

Applicant: MINISTERUL IND PETROLULUI

Inventor： IOSIF DRIMUS ,  GHEORGHE MATASA CLAUDIU ,  CONSTANTIN CRISTESCU I

IPC: C07C45/82 ,  C07C51/487 ,  C07C201/16

CPC classification number: C07C45/82 ,  C07C51/487 ,  C07C201/16 ,  C07C205/05 ,  C07C2601/14 ,  C07C55/14

Abstract: A process for the continuous separation of nitrocyclohexane from the gaseous products of cyclohexane vapour-phase nitration comprises partial condensation of said products, removal of fatty acids from the condensate by alkali washing, distillation to remove cyclohexane and water and further distillation-at sub-atmospheric pressure-of the nitrocyclohexane. The latter may be further purified by steam distillation, preferably in presence of a surface-active agent.