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公开(公告)号:DE4444709A1
公开(公告)日:1996-06-20
申请号:DE4444709
申请日:1994-12-15
Applicant: BASF AG
Inventor: KNEUPER HEINZ-JOSEF DR , BECKER RAINER DR , GEHRER EUGEN DR , SCHOSSIG JUERGEN DR , HENNE ANDREAS DR
Abstract: Prodn. of glutaraldehyde (I) comprises reacting a 2-alkoxy-2,3-dihydro-4H-pyran of formula (II) with water at 0-150 degrees C and 0.01-50 bar in the presence of a microporous crystalline aluminosilicate with a pore dia. above 5.4 Angstroms. R = 1-20C alkoxy.
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公开(公告)号:DE4432038A1
公开(公告)日:1996-03-14
申请号:DE4432038
申请日:1994-09-09
Applicant: BASF AG
Inventor: OPPENLAENDER KNUT DR , GUENTHER WOLFGANG DR , HENNE ANDREAS DR , MENGER VOLKMAR DR , BECKER RAINER DR , REIF WOLFGANG DR , THOMAS JUERGEN DR , SCHWAHN HARALD DR , HENKES ERHARD DR
IPC: C10L1/234 , C10L1/14 , C10L1/16 , C10L1/18 , C10L1/22 , C10L1/222 , C10L1/238 , C10L10/00 , C10L10/04
Abstract: A fuel contains small amts. of polyetheramines of formula R1-(OBu)n-NR2R3 (I), R1 = 2-30C alkyl, R2 and R3 = H, 1-8C alkyl, aminoalkylene of formula -R4-NR5 (II) or polyaminoalkylene of formula -(R4-NR5)m-R6 (III). R4 = 2-10C alkylene, R5 and R6 = H or 1-8C alkyl, Bu - butylene residue derived from butylene oxide, and n = 12-28.
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公开(公告)号:DE4428595A1
公开(公告)日:1996-02-15
申请号:DE4428595
申请日:1994-08-12
Applicant: BASF AG
Inventor: KARRER LOTHAR DR , PAPE FRANK-FRIEDRICH DR , KOEHLER ULRICH DR , BECKER RAINER DR , WEIDLICH PETER DR
IPC: B01J23/18 , B01J23/22 , B01J23/30 , C07B61/00 , C07C253/28 , C07C255/51 , C07C255/50 , C07C255/33 , C07D213/85
Abstract: Supported catalysts (I) suitable for ammonoxidation comprise: (a) an (almost) spherical support of Al2O3, SiO2, TiO2 and/or ZrO2 with a bulk density of 0.6-1.6 kg/l; and (b) an active compsn. contg. V and Sb in oxide form. Also claimed are methods for making (I) and for producing (hetero)aromatic (poly)nitriles (II).
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公开(公告)号:DE4405055A1
公开(公告)日:1995-08-24
申请号:DE4405055
申请日:1994-02-17
Applicant: BASF AG
Inventor: BRANDT PETER DR , BRUCHMANN BERND DR , LAQUA GERHARD DR , MERGER FRANZ DR , OTTERBACH ANDREAS DR , STIEFENHOEFER KONRAD , WITZEL TOM DR , WOLFF STEFAN DR , BECKER RAINER DR
IPC: B01J20060101 , B01J31/02 , C07B61/00 , C07D20060101 , C07D251/34 , C08G20060101 , C08G18/02 , C08G18/18 , C08G18/79 , C09D20060101 , C07D211/44 , C07D295/03 , C07D487/08 , C09D175/04 , B01J27/232 , B01J27/236 , B01J27/24
Abstract: The prodn. of isocyanurate gp.-contg. polyisocyanates (A) comprises partial trimerisation of (cyclo)aliphatic di-isocyanates (B) in the presence of tetra-alkylammonium alkyl carbonates of formula (I) and/or quat. ammonio-alkyl carbonate betaines of formula (II) as catalyst(s), followed by deactivation of the catalyst on reaching the required deg. of trimerisation. In formulae, R , R , R = 1-20 C alkyl, 5-6C cycloalkyl, 7-10C aralkyl or Ph; or R + R can form a 5- or 6-membered cycloalkyl gp., or R + R + N can form a 5- or 6-membered ring with another N or O as bridging gp. or R + R + R + N can form a multi-membered ring with one or more extra N and/or O bridges; R = 1-4C alkyl; R = 2-20 C alkylene, 5-6C cycloalkylene, 7-10C aralkylene or phenylene; or R + R = alkylene gp. which forms a 5- to 7-membered ring with a N bridge. Pref. trimerisation catalysts are carbonates of formula (III), (IV), or (V), or betaine carbonates of formula (V), (VII) or (VIII). Trimerisation is carried out at 30-150 degrees C and the catalyst is deactivated with dibutyl phosphate (DBP); unreacted monomeric di-isocyanate is then removed. Pref. di-isocyanates are (cyclo)aliphatic di-isocyanates obtd. by a phosgene-free process, esp. by thermal cleavage of (cyclo)aliphatic dicarbamate esters; esp. pref. di-isocyanates obtd. by this method are 1,6-hexamethylenedi-isocyanate (HDI), 2-butyl-2-ethyl-pentamethylene-1,5-di-isocyanate and 1-isocyanato-3-isocyanatomethyl-3,5,5-trimethylcyclohexane (IPDI).
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公开(公告)号:DE4325848A1
公开(公告)日:1995-02-02
申请号:DE4325848
申请日:1993-07-31
Applicant: BASF AG
Inventor: HUELLMANN MICHAEL DR , BECKER RAINER DR , SCHARF EMIL DR
IPC: B01J23/74 , B01J23/88 , C07B61/00 , C07D295/08 , C07D295/088 , C07D295/023 , C07B37/10 , B01J23/70
Abstract: N-(2-Hydroxyethyl)piperazine of the formula I is prepared by reaction of triethanolamine of the formula II with ammonia in the presence of hydrogen at temperatures from 100 to 500 DEG C and pressures from 10 to 500 bar on heterogeneous catalysts, employing heterogeneous catalysts having an active mass containing 20 to 85% by weight of ZrO2 and/or Al2O3, 1 to 30% by weight of oxygen-containing compounds of copper, calculated as CuO, 1 to 60% by weight of oxygen-containing compounds of cobalt calculated as CoO and/or oxygen-containing compounds of nickel, calculated as NiO and/or oxygen-containing compounds of molybdenum, calculated as MoO3.
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公开(公告)号:ES2061588T3
公开(公告)日:1994-12-16
申请号:ES88116480
申请日:1988-10-05
Applicant: BASF AG
IPC: C07C43/13 , C07C27/00 , C07C29/09 , C07C29/17 , C07C29/32 , C07C29/36 , C07C29/42 , C07C33/035 , C07C41/00 , C07C41/20 , C07C41/30 , C07C43/178 , C07C45/29 , C07C47/263 , C07C47/277 , C07C67/00 , C07C67/08 , C07C69/007 , C07F7/18
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公开(公告)号:DE4316137A1
公开(公告)日:1994-11-17
申请号:DE4316137
申请日:1993-05-14
Applicant: BASF AG
Inventor: BECKER RAINER DR , SIGWART CHRISTOPH DR , PALM CHRISTOF DR , FRANZISCHKA WOLFGANG DR
Abstract: A process for the preparation of polytetrahydrofuran or polytetrahydrofuran monoesters with C1- to C20-monocarboxylic acids or polytetrahydrofuran monoethers with monohydric C1- to C20-alcohols having a mean molecular weight of from 250 to 15,000 daltons by cationic polymerisation of tetrahydrofuran in the presence of a telogen, characterised in that tetrahydrofuran is polymerised in the presence of water, 1,4-butanediol and/or polytetrahydrofuran having a mean molecular weight of from 200 to 700 daltons and/or in the presence of a C1- to C20-monocarboxylic acid and/or a monohydric C1- to C20-alcohol with the aid of a catalytically effective amount of a bleaching earth catalyst.
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公开(公告)号:DE58902083D1
公开(公告)日:1992-09-24
申请号:DE58902083
申请日:1989-11-06
Applicant: BASF AG
Inventor: HERMELING DIETER DR , BECKER RAINER DR , DOBLER WALTER DR
Abstract: Method for the preparation of dihydroxydiones of the general formula R-CO-CH(OH)-CH(OH)-CO-R I in which R stands for an alkyl radical, in which an aldehyde of the general formula in which R has the abovementioned meaning, is electrolysed in a water- containing electrolyte which has a pH of less than 7.
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公开(公告)号:DE4039782A1
公开(公告)日:1992-06-17
申请号:DE4039782
申请日:1990-12-13
Applicant: BASF AG
Inventor: HUELLMANN MICHAEL DR , GNAD JOSEF DR , BECKER RAINER DR
IPC: C07C51/377 , C07C57/44 , C07C59/64 , C07C59/66 , C07C67/327 , C07C67/46 , C07C69/734
Abstract: 3-Arylacrylic acids and their derivatives I in which Ar represents an aryl radical which can additionally have substituents which do not react with ketene and which are stable to acids and bases under the conditions of the reaction described below, and R denotes hydrogen, alkali metal, alkaline earth metal, ammonium or a C1- to C20-alkyl group, are prepared by reacting, in a first reaction step, a dialkyl acetal of an aromatic aldehyde II in which R represents C1- to C4-alkyl, with ketene CH2=C=O in the presence of catalytic amounts of a protonic acid or a Lewis acid to give a 3-arylpropionic acid derivative III and reacting this intermediate III, in a second reaction step, in the presence of acid or base and, additionally in the case where R denotes a C1- to C20-alkyl group, with a C1- to C20-alkanol to give the end product I.
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公开(公告)号:DE4036779A1
公开(公告)日:1992-05-21
申请号:DE4036779
申请日:1990-11-17
Applicant: BASF AG
Inventor: DECKERS GABRIELE DR , BECKER RAINER DR , WENDEROTH BERND DR , GOETZ NORBERT DR , SPERLING-VIETMEIER KARIN DR
IPC: C07C49/84 , C07C59/64 , C07C59/84 , C07C69/734 , C07D317/30
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