公开(公告)号：DE1568068A1

公开(公告)日：1970-01-02

申请号：DE1568068

申请日：1966-01-11

Applicant: BASF AG

Inventor： KINDLER DR HUBERT ,  STROHMEYER DR MAX ,  SCHOLZ DR HEINRICH ,  HEINZ HILLER DR KARL

IPC: C07C2/70

公开(公告)号：DE1190929B

公开(公告)日：1965-04-15

申请号：DEB0073156

申请日：1963-08-17

Applicant: BASF AG

Inventor： EISFELD DR KARL ,  HAUG DR PETER ,  SCHOLZ DR HEINRICH ,  WEGERICH DR ANTON

IPC: C07C255/04 ,  B01D9/02 ,  C07C20060101 ,  C07C67/00 ,  C07C253/00

Abstract: Adiponitrile is purified by cooling the liquid or heating the solid so as to produce a suspension of adiponitrile crystals in liquid adiponitrile at a temperature of below 2.0 DEG C., separating the crystals, e.g. on a filter press, vacuum filter, pressure filter or in a centrifuge, washing the crystals, e.g. with pure liquid adiponitrile or with water or an organic liquid, and returning the separated liquid adiponitrile, with or without the wash liquid, to the first or another crystallization zone. The wash liquid may be pure adiponitrile obtained by partly melting the separated solid adiponitrile, e.g. while still in the separation apparatus.

公开(公告)号：DE963873C

公开(公告)日：1957-05-16

申请号：DEB0037371

申请日：1955-10-02

Applicant: BASF AG

Inventor： SCHOLZ DR HEINRICH ,  GUENTHERT DR PAUL

IPC: C07D295/02 ,  C07D295/135 ,  C07D295/30

公开(公告)号：DE1006101B

公开(公告)日：1957-04-11

申请号：DEB0034315

申请日：1955-01-29

Applicant: BASF AG

Inventor： LISSNER DIPL-ING OSKAR ,  SCHOLZ DR HEINRICH

IPC: C08G59/50

公开(公告)号：DE954416C

公开(公告)日：1956-12-20

申请号：DEB0022742

申请日：1952-11-04

Applicant: BASF AG

Inventor： ADAM DR KARL ,  SCHOLZ DR HEINRICH ,  TRIESCHMANN DR HANS-GEORG

IPC: C07C209/48