公开(公告)号：US06809224B2

公开(公告)日：2004-10-26

申请号：US10168999

申请日：2002-06-26

Applicant: Matthias Dernbach ,  Detlef Kratz ,  Achim Stammer ,  Gerhard Schulz

Inventor： Matthias Dernbach ,  Detlef Kratz ,  Achim Stammer ,  Gerhard Schulz

IPC: C07C4582

CPC classification number: C07C45/82 ,  C07C45/83 ,  C07C47/19

Abstract: Formaldehyde is removed by distillation from reaction solutions containing a methlolated alkanal which was obtained from the reaction of formaldehyde with an alkanal which has at least one acidic hydrogen atom &agr; to the carbonyl function or from the reaction of a 2-alkylacrolein or acrolein with water and formaldehyde, by a process in which this reaction was carried out in the presence of catalytic amounts of organic amine. The process permits the improved removal of formaldehyde from the reaction mixture and furthermore facilitates the hydrogenation of the alkanals thus obtained to give polyols.

Abstract translation: 从甲醛与具有至少一个羰基官能度的至少一个酸性氢原子的α-烷醛或由2-烷基丙烯醛或丙烯醛与水的反应的甲醛反应获得的含有甲基化的烷醛的反应溶液中蒸馏除去甲醛， 甲醛，通过在催化量的有机胺存在下进行该反应的方法。 该方法允许从反应混合物中改善甲醛的去除，并且进一步促进由此获得的链烷烃的氢化以产生多元醇。

公开(公告)号：US06586642B2

公开(公告)日：2003-07-01

申请号：US10168986

申请日：2002-06-26

Applicant: Matthias Dernbach ,  Detlef Kratz ,  Achim Stammer ,  Mathias Haake ,  Michael Koch ,  Gerhard Schulz

Inventor： Matthias Dernbach ,  Detlef Kratz ,  Achim Stammer ,  Mathias Haake ,  Michael Koch ,  Gerhard Schulz

IPC: C07C2726

CPC classification number: C07C29/90 ,  C07C29/80 ,  Y02P20/582 ,  C07C31/20 ,  C07C31/22 ,  C07C31/245

Abstract: A process for greatly improving the color index of polyhydric alcohols, especially trimethylolpropane, by hydrogenation comprises using, in the hydrogenation, an alcohol which has already been purified by distillation. The catalysts used are those conventionally employed in hydrogenations, preferably copper, nickel, palladium or ruthenium catalysts.

公开(公告)号：US06288009B1

公开(公告)日：2001-09-11

申请号：US09058641

申请日：1998-04-10

Applicant: Reiner Kober ,  David G. Hobbs ,  Scott W. Gibson ,  Kenneth Eugene Fersch ,  Wilhelm Rademacher ,  Jörg Botzem ,  Markus Frede ,  Matthias Dernbach ,  Reimer Göttsche ,  Reinhard Dötzer

Inventor： Reiner Kober ,  David G. Hobbs ,  Scott W. Gibson ,  Kenneth Eugene Fersch ,  Wilhelm Rademacher ,  Jörg Botzem ,  Markus Frede ,  Matthias Dernbach ,  Reimer Göttsche ,  Reinhard Dötzer

IPC: A01N6300

CPC classification number: C07D295/037 ,  A01N43/40

Abstract: The invention provides novel mepiquat plant growth regulator compositions which have improved hygroscopicity and corrosion characteristics. The novel mepiquat plant growth regulator compositions of the invention can be readily prepared from technical mepiquat chlorid inter alia by electrochemical ion exchange processes or by quaternization of N-methylpiperidine with dimethylcarbonate as starting material.

公开(公告)号：US5904814A

公开(公告)日：1999-05-18

申请号：US951124

申请日：1997-10-15

Applicant: Guido Voit ,  Matthias Dernbach ,  Karl Beck ,  Martin Holderbaum ,  Hans-Jurgen Weyer

Inventor： Guido Voit ,  Matthias Dernbach ,  Karl Beck ,  Martin Holderbaum ,  Hans-Jurgen Weyer

IPC: C07C249/02 ,  C07C251/24 ,  B01D3/00

CPC classification number: C07C249/02 ,  Y10S95/902

Abstract: A process for removing water and ammonia from benzophenone imine reactor effluents resulting from the catalytic reaction of benzophenones of the formula I ##STR1## where R.sup.1 and R.sup.2, have the meaning stated in the specification and wherein ammonia is distilled off from effluents and wherein water is either distilled off from the effluents over removed non-distillatively.

Abstract translation: 由式I的二苯甲酮的催化反应得到的二苯甲酮亚胺反应器流出物中的水和氨的方法，其中R1和R2具有说明书中所述的含义，并且其中从流出物中蒸出氨，并且其中水被蒸馏掉 从非蒸馏出的废水中除去。