公开(公告)号：GB1086132A

公开(公告)日：1967-10-04

申请号：GB286765

申请日：1965-01-22

Applicant: BASF AG

Inventor： SUTER HUBERT ,  POEHLER GUENTHER ,  BRUNMUELLER FRIEDRICH ,  CLAREN OTTO BERND

IPC: C07C67/08 ,  C07C69/34 ,  C07C69/80

Abstract: Diesters of phthalic acid are prepared by a continuous process in which liquid phthalic anhydride is first mixed with alcohol in the molar ratio 1:0.8 to 1:1.2, the alcohol having a b.p. 180-250 DEG C. and having been preheated to 3-30 DEG C. below its b.p., the (mainly) monoester so formed is then mixed with excess alcohol, and the mixture heated until formation of the diester is practically complete. In examples, the alcohols used are 2-ethylhexanol, mixed iso-octanols (b.p. 184-189 DEG C.), isononanol and isodecanol (b.p. 212-215 DEG C.).

公开(公告)号：FR1307780A

公开(公告)日：1962-10-26

申请号：FR881542

申请日：1961-12-11

Applicant: BASF AG

Inventor： POEHLER GUENTHER ,  SPERBER HEINRICH

IPC: B01J23/70 ,  B01J37/02 ,  C07C37/06 ,  C07C37/07