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公开(公告)号:JP2000143576A
公开(公告)日:2000-05-23
申请号:JP28592699
申请日:1999-10-06
Applicant: BASF AG
Inventor: RUFF DETLEF DR , BAUMANN DIETER , AQUILA WERNER DR , SCHUBERT JUERGEN , LECHTKEN PETER
Abstract: PROBLEM TO BE SOLVED: To provide a method for purifying or isolating 2,3,5-trimethyl-p- benzoquinone by surely removing intermediates and by-products formed during production of the compound and avoiding degradation of the component by diminishing the thermal stress caused by the treatment by separating the compound by the crystallization. SOLUTION: A method is provided for purifying 2,3,5-trimethyl-p-benzoquinone (TMQ) or isolating TMQ from a TMQ-containing mixture by separating by crystallizing preferably at -6 to 32 deg.C. A TMQ-containing mixture to be purified or TMQ contains TMQ preferably at 1-99.999 wt.%, more preferably at 90-99.999 wt.%. The TMQ-containing mixture is formed preferably by the catalytic oxidation of trimethylphenol. TMQ is a useful intermediate for the production of trimethylhydroquinone which is a precursor for the synthesis of α-tocopherol.
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公开(公告)号:EP0761676A3
公开(公告)日:1998-07-15
申请号:EP96113453
申请日:1996-08-22
Applicant: BASF AG
Inventor: HERMELING DIETER , HUGO RANDOLF , LECHTKEN PETER , ROTERMUND GERHARD W , SIEGEL HARDO
IPC: C07F9/50
CPC classification number: C07F9/509
Abstract: Verfahren zur Herstellung von Triphenylphosphin durch Reduktion von Triphenylphosphindichlorid an unedlen Metallen bei Temperaturen von 50 bis 150°C und Drücken von 0,2 bis 10 bar, indem das Triphenylphosphindichlorid zu 50 bis 100 Gew.-% kovalent und zu 50 bis 0 Gew.-% ionisch vorliegt.
Abstract translation: 一种用于通过减少对贱金属二氯化三苯基膦在50至150℃和0.2至10巴的压力由dichlorotriphenylphosphorus到50〜100重量%共价和50〜0重量制备三苯基膦处理 %离子。
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公开(公告)号:NO175486B
公开(公告)日:1994-07-11
申请号:NO891647
申请日:1989-04-21
Applicant: BASF AG
Inventor: HOERCHER ULRICH , LECHTKEN PETER
Abstract: A process for removing unwanted odours from mixtures of fatty acid esters which, besides other components, contain the esters of highly unsaturated fatty acids, especially of highly unsaturated omega -3-fatty acids, such as eicosapentaenoic acid or docosahexaenoic acid, is characterised in that the mixture of fatty acid esters is treated with complex hydrides, in particular with sodium borohydride solution. The process is particularly suitable for removing unwanted odours from mixtures of fatty acid esters which have been obtained from fish oil, for example from fish oil by transesterification with alkanols with 1 to 3 C atoms.
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公开(公告)号:NO891647D0
公开(公告)日:1989-04-21
申请号:NO891647
申请日:1989-04-21
Applicant: BASF AG
Inventor: HOERCHER ULRICH , LECHTKEN PETER
Abstract: A process for removing unwanted odours from mixtures of fatty acid esters which, besides other components, contain the esters of highly unsaturated fatty acids, especially of highly unsaturated omega -3-fatty acids, such as eicosapentaenoic acid or docosahexaenoic acid, is characterised in that the mixture of fatty acid esters is treated with complex hydrides, in particular with sodium borohydride solution. The process is particularly suitable for removing unwanted odours from mixtures of fatty acid esters which have been obtained from fish oil, for example from fish oil by transesterification with alkanols with 1 to 3 C atoms.
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公开(公告)号:NO151548C
公开(公告)日:1985-05-02
申请号:NO792332
申请日:1979-07-13
Applicant: BASF AG
Inventor: HESSE ANTON , LECHTKEN PETER , NICOLAUS WALTER , SCHOLZ DANKMAR
IPC: C07F9/32 , C07F9/53 , C08K5/53 , C08K5/5397 , C08L67/06
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公开(公告)号:CA1117691A
公开(公告)日:1982-02-02
申请号:CA331830
申请日:1979-07-13
Applicant: BASF AG
Inventor: HESSE ANTON , LECHTKEN PETER , NICOLAUS WALTER , SCHOLZ DANKMAR
Abstract: Photocurable molding, impregnating and coating compositions based on unsaturated polyester resins containing UV sensitizers, wherein the sensitizers are acylphosphine oxide compounds of the general formula A preferred sensitizer is 2,4,6-trimethylbenzoyldiphenyl-phosphine oxide which is employed with or without conventional UV sensitizers, preferably benzil-dimethylketal. The compositions can be cured to give moldings and coatings.
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公开(公告)号:DK172228B1
公开(公告)日:1998-01-12
申请号:DK436582
申请日:1982-10-01
Applicant: BASF AG
Inventor: LECHTKEN PETER , BUETHE INGOLF , BRONSTERT BERND , HESSE ANTON , HOFFMANN GERHARD , JACOBI MANFRED , LYNCH JOHN , TRIMBORN WERNER , VYVIAL RUDOLF
IPC: B41N20060101 , C08F20060101 , C08F2/50 , C08K20060101 , C08K5/53 , C09D20060101 , G03C20060101 , G03F7/028
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公开(公告)号:DK171353B1
公开(公告)日:1996-09-16
申请号:DK295979
申请日:1979-07-13
Applicant: BASF AG
Inventor: LECHTKEN PETER , BUETHE INGOLF , BRONSTERT BERND , HESSE ANTON , HOFFMANN GERHARD , JACOBI MANFRED , LYNCH JOHN , TRIMBORN WERNER , VYVIAL RUDOLF
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公开(公告)号:CA1235940A
公开(公告)日:1988-05-03
申请号:CA451103
申请日:1984-04-02
Applicant: BASF AG
Inventor: LECHTKEN PETER , NUERRENBACH AXEL , KOHLER WALTER , HOPPE PETER P , TIEFENBACHER HUBERT , SCHOLE JUERGEN
IPC: A23K1/16 , A23K1/18 , A61K9/40 , A61K31/47 , A61K31/495 , A61P3/00 , C07D215/58 , C07D265/36
Abstract: A growth-promoting additive for feeds consists of a commercial growth promoter as well as an aminoreductone of the formula I where R1, R2 and R3 are each hydrogen, methyl or ethyl and R4 is an unsubstituted or substituted C1-C20-alkyl or alkenyl radical or a radical of an aminoacid.
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公开(公告)号:FI69085C
公开(公告)日:1985-12-10
申请号:FI840240
申请日:1984-01-20
Applicant: BASF AG
Inventor: LECHTKEN PETER , BUETHE INGOLF , BRONSTERT BERND , HESSE ANTON , HOFFMANN GERHARD , JACOBI MANFRED , LYNCH JOHN , TRIMBORN WERNER , VYVIAL RUDOLF
IPC: C08F20060101 , C08F2/50 , C08F261/04 , C08F283/00 , G03F7/00
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