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公开(公告)号：DE59501437D1
公开(公告)日：1998-03-19
申请号：DE59501437
申请日：1995-09-30
Applicant: BASF AG
Inventor： DOCKNER TONI DR , LERMER HELMUT DR , BITTINS KLAUS DR , NESTLER GERHARD DR , BRAUCH GUNDO DR
Abstract: A process is claimed for the prodn. of 1,4-butanediol mono-(meth)acrylate (I) by esterification of (meth)acrylic acid (MAA) with 1,4-butanediol (BD). In this process the aq. soln. of unreacted BD which is obtd. is worked up by converting the BD into tetrahydrofuran (THF) and sepg. the THF.
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公开(公告)号：ES2111548T3
公开(公告)日：1998-03-16
申请号：ES91114688
申请日：1991-08-31
Applicant: BASF AG
Inventor： FISCHER ROLF DR , GOSCH HANS-JUERGEN DR , LERMER HELMUT DR , PINKOS ROLF DR , WEYER HANS-JUERGEN DR
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公开(公告)号：DE59006196D1
公开(公告)日：1994-07-28
申请号：DE59006196
申请日：1990-08-16
Applicant: BASF AG
Inventor： STECK WERNER DR , RUST HARALD , LERMER HELMUT DR , FRITZ NAEUMANN DR
IPC: C07C253/34 , C07C255/50
Abstract: A process for the separation of ortho-, meta- and para-tolunitrile from ternary mixtures of isomers entails removing ortho-tolunitrile from these mixtures by distillation under pressures of from 102 and 105 Pa and with a reflux ratio of from 1:1 to 200:1, and distilling the remaining binary mixture of meta- and para-tolunitrile to concentrate to more than 75 mol-% para-tolunitrile, and freezing out the paratolunitrile at below 26 DEG C., and a process for the preparation of suitable ternary mixtures of isomers entails isomerization of pure ortho-, meta- or para-tolunitrile or mixtures thereof at from 380 DEG to 580 DEG C. on zeolite catalysts.
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公开(公告)号：DE59005265D1
公开(公告)日：1994-05-11
申请号：DE59005265
申请日：1990-11-28
Applicant: BASF AG
Inventor： HESSE MICHAEL DR , STECK WERNER DR , LERMER HELMUT DR , FISCHER ROMAN DR , SCHWARZMANN MATTHIAS DR
IPC: C07C209/60
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公开(公告)号：DE3872968D1
公开(公告)日：1992-08-27
申请号：DE3872968
申请日：1988-07-12
Applicant: BASF AG
Inventor： LERMER HELMUT DR , HOELDERICH WOLFGANG DR , DOCKNER TONI DR , KOEHLER HERMANN DR
IPC: B01J29/08 , B01J29/40 , B01J29/80 , B01J29/86 , B01J29/88 , C07B61/00 , C07D231/12 , C07D231/18 , C07D231/20 , C07D231/22 , C07D233/22 , C07D233/54 , C07D233/64 , C07D233/70
Abstract: Acylated imidazoles and pyrazoles of formula (I) and (II) (with R = C0R5) are produced by reaction of the corrresp. corresp. cpds. in which R = R2 (III and IV, respectively with acylating agents of formula R5-C0-Y (V), in the presence of zeolite catalysts. R1, R3 = H, 1-12C alkyl, alkenyl or alkoxy, aryl, aralkyl or alkylaryl; R4 = H, 1-12C alkyl or alkenyl, aryl, aralkyl or alkylaryl R5 = 1-12C alkyl or alkenyl, aryl, aralkyl or carboxy; R2 = R1/R3 (at least one of R1, R2 or R3 = H); Y = Hal, alkoxy, acyloxy, 0H, amide or carboxy residue. Pref. zeolite is pentasil (borosilicate, ferrosilicate, aluminosilicate) or faujasite type, pref. doped with alkali, alkaline earth, rare earth or transition metal, or phosporus, esp. pref. with Cs, or with Ce and/or La.
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Patent Agency Ranking
公开(公告)号：AT78469T
公开(公告)日：1992-08-15
申请号：AT88111080
申请日：1988-07-12
Applicant: BASF AG
Inventor： LERMER HELMUT DR , HOELDERICH WOLFGANG DR , DOCKNER TONI DR , KOEHLER HERMANN DR
IPC: B01J29/08 , B01J29/40 , B01J29/80 , B01J29/86 , B01J29/88 , C07B61/00 , C07D231/12 , C07D231/18 , C07D231/20 , C07D231/22 , C07D233/22 , C07D233/54 , C07D233/64 , C07D233/70
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公开(公告)号：DE4029485A1
公开(公告)日：1992-03-19
申请号：DE4029485
申请日：1990-09-18
Applicant: BASF AG
Inventor： FISCHER ROLF DR , GOSCH HANS-JUERGEN DR , LERMER HELMUT DR , PINKOS ROLF DR , WEYER HANS-JUERGEN DR
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公开(公告)号：DE3940349A1
公开(公告)日：1991-06-13
申请号：DE3940349
申请日：1989-12-06
Applicant: BASF AG
Inventor： HESSE MICHAEL DR , STECK WERNER DR , LERMER HELMUT DR , SCHWARZMANN MATTHIAS DR , FISCHER ROMAN DR
IPC: C07C209/60
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39.发明专利
公开(公告)号：DE3664315D1
公开(公告)日：1989-08-17
申请号：DE3664315
申请日：1986-10-16
Applicant: BASF AG
Inventor： HOELDERICH WOLFGANG DR , LERMER HELMUT DR
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公开(公告)号：DE3537998A1
公开(公告)日：1987-05-07
申请号：DE3537998
申请日：1985-10-25
Applicant: BASF AG
Inventor： HOELDERICH WOLFGANG DR , LERMER HELMUT DR
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