公开(公告)号：DE3064339D1

公开(公告)日：1983-08-25

申请号：DE3064339

申请日：1980-12-19

Applicant: STAMICARBON

Inventor： MEYER PETER JOHAN NICOLAAS ,  NIEUWKAMP JOHANNES GERARDUS MA

IPC: C07D207/263 ,  B01J23/00 ,  C07B61/00 ,  C07D201/08 ,  C07D207/267

Abstract: Process for the preparation of a 2-pyrrolidone by hydrogenation of optionally substituted succinonitrile in the liquid phase in the presence of ammonia using a fixed-bed catalyst and treatment of the hydrogenated product with water, in which the hydrogenation one or more times is interrupted for regenration of the catalyst by passing liquid ammonia at 75-130 DEG C, subsequently hydrogen at 130-350 DEG C and then liquid ammonia again at 75-130 DEG C over the catalyst.

公开(公告)号：DE3060909D1

公开(公告)日：1982-11-11

申请号：DE3060909

申请日：1980-03-27

Applicant: STAMICARBON

Inventor： BEEKHUIS GERRIT ERNST ,  VAN DE MOND THEODORUS JOHANNES ,  NIEUWKAMP JOHANNES GERARDUS MA

IPC: C07D207/26 ,  B01J23/78 ,  C07D201/08 ,  C07D207/263 ,  C07D207/267

公开(公告)号：DE2901912A1

公开(公告)日：1979-07-26

申请号：DE2901912

申请日：1979-01-18

Applicant: STAMICARBON

Inventor： MEIJER PETER JOHAN NICOLAAS ,  NIEUWKAMP JOHANNES GERARDUS MA

IPC: C07D207/263 ,  C07D201/08 ,  C07D207/26 ,  C07D207/267

Abstract: An improved process for the preparation of 2-pyrrolidone by the liquid phase hydrogenation of succinonitrile in the presence of a hydrogenation catalyst and ammonia, whereafter the resulting hydrogenation product is hydrolyzed with water. A hydrogenation catalyst in the form of a fixed bed is used, and a liquid phase of succinonitrile and liquid ammonia is passed over the catalyst at a temperature of between 50 DEG and 130 DEG C.

公开(公告)号：DE3061845D1

公开(公告)日：1983-03-17

申请号：DE3061845

申请日：1980-02-20

Applicant: STAMICARBON

Inventor： SUVERKROPP GEERTRUDES HERMAN ,  NIEUWKAMP JOHANNES GERARDUS MA

IPC: C07B61/00 ,  B01J31/00 ,  B01J31/02 ,  C07C67/00 ,  C07C253/00 ,  C07C255/04 ,  C07C255/10 ,  C07C121/24 ,  C07C120/02