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公开(公告)号：ES2059920T3
公开(公告)日：1994-11-16
申请号：ES90114236
申请日：1990-07-25
Applicant: BASF AG
Inventor： NEUBAUER GERALD DR , RITZ JOSEF DR , AGAR DAVID DR , FISCHER ROLF DR , VAGT UWE DR , FUCHS HUGO DR
IPC: C07D223/10 , C07D201/16
Abstract: Caprolactam is purified continuously by passing a 75-95% strength by weight aqueous caprolactam solution together with hydrogen at 50 DEG -95 DEG C. and 1.5-100 bar upward through a fixed-bed supported palladium or nickel catalyst in a tubular zone while maintaining a residence time of from 10 to 100 min.
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公开(公告)号：DE3780318D1
公开(公告)日：1992-08-20
申请号：DE3780318
申请日：1987-01-23
Applicant: BASF AG
Inventor： HUTMACHER HANS-MARTIN , BROECKER FRANZ JOSEF DR , MERGER FRANZ DR , FISCHER ROLF DR , VAGT UWE DR , SCHNEIDER HEINZ-WALTER DR , RICHTER WOLFGANG DR , HARDER WOLFGANG DR , PRIESTER CLAUS-ULRICH DR
IPC: C07B61/00 , B01J21/16 , B01J23/00 , B01J23/74 , B01J23/755 , B01J25/02 , C07C67/00 , C07C227/00 , C07C227/04 , C07C227/08 , C07C229/04 , C07C229/08
Abstract: Esters of 6-aminocaproic acid are prepd. by reacting esters of 5-formyl-valeric acid with NH3 and H2, with alcohols as solvents, in presence of hydrogenation catalysts under increased pressure and at 40-95 deg. C. Pref. the catalyst is (i) prepd. by calcination of: ((MgaNi(II)bCo(II)cAl2)CO3(OH)16.4H2O at 200-600 deg. C, followed by redn. with H2 at raised temp., or (ii) 30-60 wt.% of finely divided Ni pptd. on Mg silicate. In the formulae, a = 0-4; b, c = 0-6; 2 x (a+b+c) = 12. Pref. alkanol solns. of 5-formyl valeric acid esters are led with NH3 over a fixed bed catalyst. Raney Ni or Raney Co may be used in a suspension process, opt. fixed in the reaction zone (electro)-magnetically. The catalyst is 0.2-2 kg of 5-formylvaleric acid ester/l of catalyst/h. Partic. methyl 5-formylvalerate is used, in soln. in methanol.
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公开(公告)号：DE3843791A1
公开(公告)日：1990-07-05
申请号：DE3843791
申请日：1988-12-24
Applicant: BASF AG
Inventor： MERGER FRANZ DR , FISCHER ROLF DR , HARDER WOLFGANG DR , PRIESTER CLAUS-ULRICH DR , VAGT UWE DR
IPC: B01J23/46 , C07B61/00 , C07D201/08 , C07D201/16
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公开(公告)号：DE3823695A1
公开(公告)日：1990-01-18
申请号：DE3823695
申请日：1988-07-13
Applicant: BASF AG
Inventor： RICHTER WOLFGANG DR , HARDER WOLFGANG DR , FISCHER ROLF DR , VAGT UWE DR
IPC: C07C67/31 , C07C69/675
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公开(公告)号：DE3730186A1
公开(公告)日：1989-03-23
申请号：DE3730186
申请日：1987-09-09
Applicant: BASF AG
Inventor： KUMMER RUDOLF DR , SCHNEIDER HEINZ-WALTER DR , BERTLEFF WERNER DR , FISCHER ROLF DR , VAGT UWE DR
IPC: C07D315/00
Abstract: 5-Methylbutyrolactone is prepared from pentenoic acid esters by reacting these either directly with water and acidic catalysts or first hydrolysing the ester using acidic ion exchangers as catalysts and cyclising the pentenoic acids in a second step.
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Patent Agency Ranking
公开(公告)号：DE3630613A1
公开(公告)日：1988-03-17
申请号：DE3630613
申请日：1986-09-09
Applicant: BASF AG
Inventor： KUMMER RUDOLF DR , FISCHER ROLF DR , VAGT UWE DR
IPC: C07D207/38 , C07D211/86
Abstract: Process for the preparation of 3,4-dihydro-2-pyridones of the formula and/or 3-pyrroline-2-ones of the formula in which R1 to R5 denote hydrogen, or alkyl, cycloalkyl, aralkyl or aryl radicals, in which 3-alkenylamides of the formula in which R1 to R5 have the abovementioned meaning, are reacted with carbon monoxide and hydrogen at temperatures of 80-150 DEG C and pressures of 1 to 300 bar in the presence of cobalt carbonyl and/or rhodium carbonyl complexes.
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公开(公告)号：DE3619173A1
公开(公告)日：1987-12-10
申请号：DE3619173
申请日：1986-06-06
Applicant: BASF AG
Inventor： RIEBER NORBERT DR , FISCHER ROLF DR , BRUNNER ERWIN DR , LUYKEN HERMANN , VAGT UWE DR
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公开(公告)号：DE3630613C2
公开(公告)日：1997-04-03
申请号：DE3630613
申请日：1986-09-09
Applicant: BASF AG
Inventor： KUMMER RUDOLF DR , FISCHER ROLF DR , VAGT UWE DR
IPC: C07D207/38 , C07D211/86
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公开(公告)号：ES2043967T3
公开(公告)日：1994-01-01
申请号：ES89111529
申请日：1989-06-24
Applicant: BASF AG
Inventor： RICHTER WOLFGANG DR , HARDER WOLFGANG DR , FISCHER ROLF DR , VAGT UWE DR
IPC: C07C67/31 , C07C69/675
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公开(公告)号：DE3760108D1
公开(公告)日：1989-05-24
申请号：DE3760108
申请日：1987-06-04
Applicant: BASF AG
Inventor： RIEBER NORBERT DR , FISCHER ROLF DR , BRUNNER ERWIN DR , LUYKEN HERMAN , VAGT UWE DR
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