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公开(公告)号：JPH10265419A
公开(公告)日：1998-10-06
申请号：JP4200698
申请日：1998-02-24
Applicant: BASF AG
Inventor： KIEFER MATTHIAS DR , SIEGEL WOLFGANG DR , THERRE JOERG DR , PAHL MELANIE , AQUILA WERNER DR , SCHAEFER-LUEDERSSEN ULRICH DR , RHEUDE UDO DR
Abstract: PROBLEM TO BE SOLVED: To provide a method for isomerizing ally alcohol in high yield and selectivity, and at a low cost. SOLUTION: In a method in which allyl alcohol of a starting material is isomerized to allyl alcohol of a product in an aqueous solution in the presence of a protonic acid, the pH value of the reaction mixture is adjusted in the range of 2-5 with a protonic acid at a concentration of
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公开(公告)号：JPH11292809A
公开(公告)日：1999-10-26
申请号：JP6554099
申请日：1999-03-11
Applicant: BASF AG
Inventor： KIEFER MATTHIAS DR , SIEGEL WOLFGANG DR , THERRE JOERG DR , PAHL MELANIE , AQUILA WERNER DR , SCHAEFER-LUEDERSSEN ULRICH DR
Abstract: PROBLEM TO BE SOLVED: To provide a simple, inexpensive and extremely selective method for continuously producing pure dimethylvinylcarbinol(DMVC) from prenol provided with a high space time yield. SOLUTION: (a) The formation of a liquid two-phase mixture in a reactional mixture is avoided during a reaction as far as possible, (b) a formed DMVC is distilled in a reflux ratio of at least 2 and (c) the reactional volume and/or the amount of the prenol added per h and/or the concentration of a protonic acid in the reactional mixture are set so as to provide the product of the quotient obtained by dividing the reactional volume divided by the prenol volume added per h and the proton concentration in the reactional mixture defined as a residence time concentration coefficient with a value of 0.001 h.mol/L to 1 h.mol/L in a method for continuously reacting the prenol with an aqueous solution of the protonic acid in a still or a rectifying column while distilling off the DMVC formed in the state of an azeotropic mixture with water and thereby producing the DMVC.
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公开(公告)号：ES2178313T3
公开(公告)日：2002-12-16
申请号：ES99104411
申请日：1999-03-05
Applicant: BASF AG
Inventor： KIEFER MATTHIAS DR , SIEGEL WOLFGANG DR , THERRE JORG DR , PAHL MELANIE , AQUILA WERNER DR , SCHAFER-LUDERSSEN ULRICH DR
Abstract: Continuous production of dimethyl vinyl carbinol (DMVC) comprises reaction of prenol with an aqueous solution of a protonic acid in the bottom or upper part of a rectification column while distilling off the DMVC as an azeotropic mixture with water under specified conditions. Continuous production of dimethyl vinyl carbinol (DMVC) by reaction of prenol with an aqueous solution of a protonic acid in the bottom or upper part of a rectification column while distilling off the DMVC as an azeotropic mixture with water is performed in such a way that (a) the amount of liquid two-phase mixture formed during the reaction is minimized, (b) the DMVC is distilled off with a reflux ratio of at least 2, and (c) the reaction volume (V in ml) and/or the amount of prenol added per hour (P in ml/hour) and/or the proton concentration in the reaction mixture (C in moles/liter) is such that VC/P = 0.001-1 h.mol/l.
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公开(公告)号：DE19738083A1
公开(公告)日：1999-03-04
申请号：DE19738083
申请日：1997-09-01
Applicant: BASF AG
Inventor： KIEFER MATTHIAS DR , SIEGEL WOLFGANG DR , THERRE JOERG DR , PAHL MELANIE
Abstract: In the isomerisation of educt allyl alcohols (I) to product allyl alcohols (II) in aqueous solution in the presence of protonic acid (III), the pH of the reaction mixture is adjusted to 2-5 with (III) in a concentration 0.16 mole/l reaction mixture or a buffer containing (III).
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公开(公告)号：DK0941979T3
公开(公告)日：2002-07-01
申请号：DK99104411
申请日：1999-03-05
Applicant: BASF AG
Inventor： KIEFER MATTHIAS DR , SIEGEL WOLFGANG DR , THERRE JOERG DR , PAHL MELANIE , AQUILA WERNER DR , SCHAEFER-LUEDERSSEN ULRICH DR
Abstract: Continuous production of dimethyl vinyl carbinol (DMVC) comprises reaction of prenol with an aqueous solution of a protonic acid in the bottom or upper part of a rectification column while distilling off the DMVC as an azeotropic mixture with water under specified conditions. Continuous production of dimethyl vinyl carbinol (DMVC) by reaction of prenol with an aqueous solution of a protonic acid in the bottom or upper part of a rectification column while distilling off the DMVC as an azeotropic mixture with water is performed in such a way that (a) the amount of liquid two-phase mixture formed during the reaction is minimized, (b) the DMVC is distilled off with a reflux ratio of at least 2, and (c) the reaction volume (V in ml) and/or the amount of prenol added per hour (P in ml/hour) and/or the proton concentration in the reaction mixture (C in moles/liter) is such that VC/P = 0.001-1 h.mol/l.
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Patent Agency Ranking
公开(公告)号：AT218525T
公开(公告)日：2002-06-15
申请号：AT99104411
申请日：1999-03-05
Applicant: BASF AG
Inventor： KIEFER MATTHIAS DR , SIEGEL WOLFGANG DR , THERRE JOERG DR , PAHL MELANIE , AQUILA WERNER DR , SCHAEFER-LUEDERSSEN ULRICH DR
Abstract: Continuous production of dimethyl vinyl carbinol (DMVC) comprises reaction of prenol with an aqueous solution of a protonic acid in the bottom or upper part of a rectification column while distilling off the DMVC as an azeotropic mixture with water under specified conditions. Continuous production of dimethyl vinyl carbinol (DMVC) by reaction of prenol with an aqueous solution of a protonic acid in the bottom or upper part of a rectification column while distilling off the DMVC as an azeotropic mixture with water is performed in such a way that (a) the amount of liquid two-phase mixture formed during the reaction is minimized, (b) the DMVC is distilled off with a reflux ratio of at least 2, and (c) the reaction volume (V in ml) and/or the amount of prenol added per hour (P in ml/hour) and/or the proton concentration in the reaction mixture (C in moles/liter) is such that VC/P = 0.001-1 h.mol/l.
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公开(公告)号：DE19707385A1
公开(公告)日：1998-08-27
申请号：DE19707385
申请日：1997-02-25
Applicant: BASF AG
Inventor： KIEFER MATTHIAS DR , SIEGEL WOLFGANG DR , THERRE JOERG DR , PAHL MELANIE , AQUILA WERNER DR , SCHAEFER-LUEDERSSEN ULRICH DR , RHEUDE UDO DR
Abstract: In the isomerisation of educt allyl alcohols (I) to product allyl alcohols (II) in aqueous solution in the presence of protonic acid (III), the pH of the reaction mixture is adjusted to 2-5 with (III) in a concentration 0.16 mole/l reaction mixture or a buffer containing (III).
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公开(公告)号：MY145834A
公开(公告)日：2012-04-30
申请号：MYPI20060774
申请日：2006-02-23
Applicant: BASF AG
Inventor： KORMANN CLAUDIUS DR , COLIN IRWIN , KIEFER MATTHIAS DR
IPC: C09K5/20
Abstract: THE PRESENT INVENTION RELATES TO ANTIFREEZE/ANTICORROSION CONCENTRATES COMPRISING FROM 10 LO 50% BY WEIGHT, BASED ON THE TOTAL AMOUNT OF THE CONCENTRATE, OF GLYCEROL, TO PROCESSES FOR PREPARING SUCH CONCENTRATES FROM SUPERCONCENTRATE, TO AQUEOUS COOLANT COMPOSITIONS FROM THESE CONCENTRATES, AND TO THEIR USE, FOR EXAMPLE IN INTERNAL COMBUSTION ENGINES.
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9.发明专利
公开(公告)号：SI0941979T1
公开(公告)日：2002-10-31
申请号：SI9930069
申请日：1999-03-05
Applicant: BASF AG
Inventor： KIEFER MATTHIAS DR , SIEGEL WOLFGANG DR , THERRE JOERG DR , PAHL MELANIE , AQUILA WERNER DR , SCHAEFER-LUEDERSSEN ULRICH DR
Abstract: Continuous production of dimethyl vinyl carbinol (DMVC) comprises reaction of prenol with an aqueous solution of a protonic acid in the bottom or upper part of a rectification column while distilling off the DMVC as an azeotropic mixture with water under specified conditions. Continuous production of dimethyl vinyl carbinol (DMVC) by reaction of prenol with an aqueous solution of a protonic acid in the bottom or upper part of a rectification column while distilling off the DMVC as an azeotropic mixture with water is performed in such a way that (a) the amount of liquid two-phase mixture formed during the reaction is minimized, (b) the DMVC is distilled off with a reflux ratio of at least 2, and (c) the reaction volume (V in ml) and/or the amount of prenol added per hour (P in ml/hour) and/or the proton concentration in the reaction mixture (C in moles/liter) is such that VC/P = 0.001-1 h.mol/l.
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公开(公告)号：DE59901582D1
公开(公告)日：2002-07-11
申请号：DE59901582
申请日：1999-03-05
Applicant: BASF AG
Inventor： KIEFER MATTHIAS DR , SIEGEL WOLFGANG DR , THERRE JOERG DR , PAHL MELANIE , AQUILA WERNER DR , SCHAEFER-LUEDERSSEN ULRICH DR
Abstract: Continuous production of dimethyl vinyl carbinol (DMVC) comprises reaction of prenol with an aqueous solution of a protonic acid in the bottom or upper part of a rectification column while distilling off the DMVC as an azeotropic mixture with water under specified conditions. Continuous production of dimethyl vinyl carbinol (DMVC) by reaction of prenol with an aqueous solution of a protonic acid in the bottom or upper part of a rectification column while distilling off the DMVC as an azeotropic mixture with water is performed in such a way that (a) the amount of liquid two-phase mixture formed during the reaction is minimized, (b) the DMVC is distilled off with a reflux ratio of at least 2, and (c) the reaction volume (V in ml) and/or the amount of prenol added per hour (P in ml/hour) and/or the proton concentration in the reaction mixture (C in moles/liter) is such that VC/P = 0.001-1 h.mol/l.
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