公开(公告)号：DE3014950A1

公开(公告)日：1981-10-29

申请号：DE3014950

申请日：1980-04-18

Applicant: BASF AG

Inventor： ENGELBACH HEINZ DIPL CHEM DR ,  STEIGLEITER WERNER ,  GLIETENBERG HELMUT DIPL ING DR ,  HOFFMANN HERWIG DIPL CHEM DR ,  STROHMEYER MAX DIPL CHEM DR

IPC: C07C2/10 ,  B01J27/16 ,  B01J27/18 ,  B01J27/186 ,  B01J37/00 ,  C01B25/26 ,  C01B25/45 ,  C01B35/12 ,  C01B35/14 ,  C07B61/00 ,  C07C1/00 ,  C07C2/18 ,  C07C11/02 ,  C07C67/00

Abstract: Catalysts, for olefin oligomerization, whose active material has the empirical formula I APO4.[P2O5.(H2O)n]a . (XY)b I where A is boron, antimony, bismuth, aluminum and/or 3 equivalents of titanium, X is NH4(+) and/or an alkali metal cation and/or one equivalent of an alkaline earth metal cation, Y is one equivalent of an anion, a is 0.02-0.2, b is 0-0.05 and n is 1-3, and a process for the preparation of these catalysts.

公开(公告)号：DE2642533A1

公开(公告)日：1978-03-23

申请号：DE2642533

申请日：1976-09-22

Applicant: BASF AG

Inventor： BROECKER FRANZ JOSEF DIPL CHEM ,  DUEMBGEN GERD DIPL CHEM DR ,  GLIETENBERG HELMUT DIPL ING DR ,  MIESEN ERNEST DIPL ING ,  SCHWARZMANN MATTHIAS DIPL CHEM

IPC: C07D307/33 ,  C07D315/00 ,  C07D307/58 ,  C07D307/60 ,  C07C55/10

Abstract: gamma -Butyrolactone is manufactured by hydrogenating maleic anhydride in the presence of butyrolactone as the solvent. The hydrogenated reaction mixture, which contains butyrolactone, succinic anhydride and succinic acid, is fractionated in a thin film evaporator.