-
公开(公告)号：FR2719307B1
公开(公告)日：1996-09-20
申请号：FR9505139
申请日：1995-04-28
Applicant: BASF AG
Inventor： TREMMEL GREGOR , VAES GUIDO , ENGLERT KURT , UHR HERMANN
-
公开(公告)号：DE59301918D1
公开(公告)日：1996-04-18
申请号：DE59301918
申请日：1993-11-05
Applicant: BASF AG
Inventor： POEPEL WOLFGANG , TREMMEL GREGOR , BUECHELE WOLFGANG , DEIMLING AXEL , PETERSEN HERMANN
Abstract: PCT No. PCT/EP93/03083 Sec. 371 Date Feb. 13, 1995 Sec. 102(e) Date Feb. 13, 1995 PCT Filed Nov. 5, 1993 PCT Pub. No. WO94/11104 PCT Pub. Date May 26, 1994A process for the preparation of iron-, potassium- and cerium-containing catalysts for the dehydrogenation of hydrocarbons from the same spent catalysts (regeneration) by grinding and, if necessary, purifying the spent material, restoring the original activity by adjusting the composition and restoring the external shape comprises adding to the ground material an effective amount of potassium and such an amount of cerium that the total amount of cerium is greater than the amount originally present.
-
公开(公告)号：CA1169099A
公开(公告)日：1984-06-12
申请号：CA386957
申请日：1981-09-30
Applicant: BASF AG
Inventor： HEIMLICH GUENTHER , TREMMEL GREGOR , LIEB MANFRED
IPC: C07C2/68 , C07C2/70 , C07C15/073
Abstract: O.Z. 0050/034728 of the disclosure: A process for the continuous preparation of ethylbenzene in a heterogeneous-phase reaction by alkylating benzene, with ethylene in the presence of a catalyst based on a complex organic aluminum chloride compound and a co-cataylst at an elevated temperature and elevated pressure, with a residence time of from 5 to 60 minutes in one or more reaction zones, the reaction mixture, after completion of the reaction, being fed into a pressure vessel and vigorously mixed therein for from 20 to 60 minutes at from 120 to 160.degree.C.
-
公开(公告)号：ES2171659T3
公开(公告)日：2002-09-16
申请号：ES96908047
申请日：1996-03-15
Applicant: BASF AG
Inventor： KOCH ANDREAS , AUMULLER ALEXANDER , MITULLA KONRAD , TREMMEL GREGOR , HERBST HOLGER
IPC: C07D211/58 , C07B63/04 , C07D211/94 , C07F9/59 , C09K15/22 , C09K15/30
Abstract: PCT No. PCT/EP96/01122 Sec. 371 Date Sep. 22, 1997 Sec. 102(e) Date Sep. 22, 1997 PCT Filed Mar. 15, 1996 PCT Pub. No. WO96/29311 PCT Pub. Date Sep. 26, 19964-Acylaminopiperidine N-oxides IaA1B1(Ia)where A1 is hydrogen or an organic radical and B1 is a radical IIa where R1-R4 are each C1-C4-alkyl and R1 and R2, on the one hand, and R3 and R4, on the other hand, may furthermore be bonded to form a 5-membered or 6-membered ring, R5 is H or C114 C4-alkyl and R6 is H or C1-C18-alkyl, are used for stabilizing organic materials against the harmful effect of free radicals, particularly in the distillation of monomers which undergo free radical polymerization, especially styrene.
-
公开(公告)号：DE19510184A1
公开(公告)日：1996-09-26
申请号：DE19510184
申请日：1995-03-21
Applicant: BASF AG
Inventor： KOCH ANDREAS DR , AUMUELLER ALEXANDER DR , MITULLA KONRAD DR , TREMMEL GREGOR , HERBST HOLGER DR
IPC: C07D211/58 , C07B63/04 , C07D211/94 , C07F9/59 , C09K15/22 , C09K15/30 , C07D221/20 , C07D401/06 , C07D405/06 , C07D409/06 , C07C15/46 , C07C7/05 , C07C7/20
Abstract: The invention concerns 4-acylamino piperidin-N-oxyls of the formula: A B wherein A stands for hydrogen or an organic group and B stands for a group of formula (IIa) in which the substituents have the following meanings: R -R are C1-C4 alkyl (R and R and R and R can be bound to a 5- or 6-member ring); R is H or C1-C4 alkyl; and R is H or C1-C18 alkyl. The compounds in question serve to stabilise organic substances against the harmful effects of radicals, especially in the distillation of radically polymerising monomers such as styrene.
-
Patent Agency Ranking
公开(公告)号：BE1008533A6
公开(公告)日：1996-06-04
申请号：BE9500388
申请日：1995-04-28
Applicant: BASF AG
Inventor： TREMMEL GREGOR , ENGLERT KURT , UHR HERMANN , VAES GUIDO
Abstract: L'invention concerne un procédé de distillation du styrène dans au moins une colonne de distillation en présence d'un nitrophénol inhibant la polymérisation, conformément auquel on ajoute le nitrophénol à l'alimentation de la colonne, on récupère le nitrophénol concentré au fond de la colonne sous forme de phénate par réaction du résidu ou de la queue avec de l'ammoniac et on le renvoie à l'alimentation de la colonne sous forme du produit issu de la réaction.
-
公开(公告)号：DE4016297A1
公开(公告)日：1991-11-28
申请号：DE4016297
申请日：1990-05-21
Applicant: BASF AG
Inventor： TREMMEL GREGOR , DEIMLING AXEL DR , UHR HERMANN , AECKERLE ECKHARD , NIKLES ALBERT , LAUSBERG DIETRICH DR
IPC: C02F1/26
-
公开(公告)号：DE3160010D1
公开(公告)日：1983-01-20
申请号：DE3160010
申请日：1981-03-04
Applicant: BASF AG
Inventor： HEIMLICH GUENTHER DR , TREMMEL GREGOR , LIEB MANFRED , LAUSBERG DIETRICH DR
IPC: C07C2/66 , C07C2/68 , C07C7/00 , C07C7/148 , C07C15/073
-
公开(公告)号：DE2365175A1
公开(公告)日：1975-07-10
申请号：DE2365175
申请日：1973-12-29
Applicant: BASF AG
Inventor： TREMMEL GREGOR , HEIMLICH GUENTHER DIPL CHEM DR
-
公开(公告)号：MX9706337A
公开(公告)日：1998-07-31
申请号：MX9706337
申请日：1997-08-20
Applicant: BASF AG
Inventor： KOCH ANDREAS , AUMULLER ALEXANDER , MITULLA KONRAD , TREMMEL GREGOR , HERBST HOLGER
IPC: C07D211/58 , C07B63/04 , C07D211/94 , C07F9/59 , C09K15/22 , C09K15/30
Abstract: La presente invencion se refiere a los N-oxidos de 4-acilaminopiperidina la A+B (Ia) en donde A1 es hidrogeno o un radical orgánico y B1 es un radical IIa. (Ver Formula) en donde R1-R4 son cada uno alquilo de C1-C4, y, R1 y R2, por una parte, y R3 y R4, por otra parte, pueden además estar unidos para formar un anillo de 5 a 6 miembros, R5 es H o alquilo de C1-C4 y R6 es H o alquilo de C1-C18 se utilizan para estabilizar materiales orgánicos contra el efecto danino de los radicales libres, particularmente durante la destilacion de monomeros que sufre de polimerizacion por radicales libres, especialmente el estireno.
-
-
-
-
-
-
-
-
-
Search Results
33
records
(took 0.022 seconds)
