-
公开(公告)号:NO20062261A
公开(公告)日:2006-07-27
申请号:NO20062261
申请日:2006-05-19
Applicant: BASF AG
Inventor: HEINZ ROBERT , HAUK ALEXANDER , LENZ ROBERT , LOHMANN ANNA VALESKA , KARL JORN , PASCHOLD JUERGEN , GROPP STEFAN , LETZELTER THOMAS
CPC classification number: C07C51/412 , C07C53/06 , C07C53/02
-
公开(公告)号:DE102004022135A1
公开(公告)日:2005-11-24
申请号:DE102004022135
申请日:2004-05-05
Applicant: BASF AG
Inventor: HAUK ALEXANDER , KARL JOERN , PASCHOLD JUERGEN , LENZ ROBERT , HEINZ ROBERT , GROPP STEFAN , LETZELTER THOMAS , LOHMANN ANNA VALESKA
Abstract: A method for preparing formic acid formates (A) comprises supplying separate liquid streams of formic acid (stream I) and a metal formate (stream II) to a rectification column, with II supplied at the same height as I, or at a higher position. Water is separated as overhead and an (A)-containing sump product is recovered. The sump product is recovered as a melt containing less than 0.5 wt.% water.
-
公开(公告)号:AU2003300226A1
公开(公告)日:2004-07-22
申请号:AU2003300226
申请日:2003-12-23
Applicant: BASF AG
Inventor: KINDLER ALOIS , LETZELTER THOMAS , FRANKE DIRK , FRIESE KATRIN , KNOLL CHRISTIAN
IPC: C07D213/67 , C07D498/08 , C07D498/18
-
公开(公告)号:AT238261T
公开(公告)日:2003-05-15
申请号:AT99121810
申请日:1999-11-04
Applicant: BASF AG
Inventor: BURKART KIRSTEN , GUTH JOSEF , LETZELTER THOMAS , SCHWEINZER JUERGEN , STERZEL HANS-JOSEF
Abstract: Preparation of orthoesters by treatment of 1,1,1-trihaloalkanes with alkali-alcoholates in the presence of the corresponding alcohol where the alkali-alcoholate is added in the form of a mash in the alcohol.
-
公开(公告)号:DE19920594A1
公开(公告)日:2000-11-09
申请号:DE19920594
申请日:1999-05-05
Applicant: BASF AG
Inventor: FRIEDRICH HOLGER , GUTH JOSEF , SCHWEINZER JUERGEN , LETZELTER THOMAS , BENDER HANS-JUERGEN
Abstract: The production of alkali metal alcoholates (I) by reacting alkali metals (II) with alcohols (III) is carried out in the presence of a catalyst. An Independent claim is also included for apparatus used to produce solid (I) free from alcohol of crystallization.
-
公开(公告)号:DK1682476T3
公开(公告)日:2007-08-20
申请号:DK04797653
申请日:2004-11-05
Applicant: BASF AG
Inventor: HAUK ALEXANDER , KARL JOERN , PASCHOLD JUERGEN , GROPP STEFAN , LOHMANN ANNA VALESKA , LENZ ROBERT , LETZELTER THOMAS , HEINZ ROBERT
Abstract: A process is proposed for preparing acid formates in which a liquid stream I comprising formic acid and a liquid stream II comprising a metal formate are prepared, the liquid streams I and II are fed to a rectification column in such a manner that a higher or identical feed point to the rectification column is chosen for the liquid stream II than for the liquid stream I, the liquid streams I and II are mixed in the rectification column, with water being removed overhead from the rectification column and a bottoms stream comprising the acid formate is taken off from the rectification column, which comprises the bottoms stream being produced as melt comprising less than 0.5% by weight of water.
-
公开(公告)号:BRPI0416179A
公开(公告)日:2007-01-09
申请号:BRPI0416179
申请日:2004-11-05
Applicant: BASF AG
Inventor: HAUK ALEXANDRE , KARL J RN , PASCHOLD JUERGEN , GROPP STEFAN , LOHMANN ANNA VALESKA , LENZ ROBERT , LETZELTER THOMAS , HEINZ ROBERT
Abstract: A process is proposed for preparing acid formates in which a liquid stream I comprising formic acid and a liquid stream II comprising a metal formate are prepared, the liquid streams I and II are fed to a rectification column in such a manner that a higher or identical feed point to the rectification column is chosen for the liquid stream II than for the liquid stream I, the liquid streams I and II are mixed in the rectification column, with water being removed overhead from the rectification column and a bottoms stream comprising the acid formate is taken off from the rectification column, which comprises the bottoms stream being produced as melt comprising less than 0.5% by weight of water.
-
公开(公告)号:DE10351733A1
公开(公告)日:2005-06-09
申请号:DE10351733
申请日:2003-11-06
Applicant: BASF AG
Inventor: HAUK ALEXANDER , KARL JOERN , PASCHOLD JUERGEN , GROPP STEFAN , LOHMANN ANNA VALESKA , LENZ ROBERT , LETZELTER THOMAS
Abstract: A method for preparing formic acid formates (A) comprises supplying separate liquid streams of formic acid (stream I) and a metal formate (stream II) to a rectification column, with II supplied at the same height as I, or at a higher position. Water is separated as overhead and an (A)-containing sump product is recovered. The sump product is recovered as a melt containing less than 0.5 wt.% water.
-
公开(公告)号:AT248795T
公开(公告)日:2003-09-15
申请号:AT99927790
申请日:1999-05-28
Applicant: BASF AG
Inventor: FRIEDRICH HOLGER , GUTH JOSEF , SCHWEINZER JUERGEN , LETZELTER THOMAS , BENDER HANS-JUERGEN
Abstract: The invention relates to a process for preparing alkali metal alkoxides by reacting alkali metals with alcohols in the presence of a catalyst, preferably a transition metal salt and especially iron(III) chloride.
-
公开(公告)号:DE19649681A1
公开(公告)日:1998-06-04
申请号:DE19649681
申请日:1996-11-29
Applicant: BASF AG
Inventor: SCHOENHERR MICHAEL DR , RAULS MATTHIAS DR , ASCHERL HERMANN , LETZELTER THOMAS , BAUMANN DIETER , POTTHOFF-KARL BIRGIT DR
IPC: C11D1/04 , C07C227/42 , C07C229/16 , C07C229/24 , C07C229/22 , C11D3/33
Abstract: A method for the preparation of a crystalline solid comprising a glycine-N,N-diacetic acid derivative of formula (I) with a very low hygroscopicity, comprises fixing the water content of the starting material containing (I) at 10-30 wt.% and then carrying out crystallisation: MOOC-CH(R)-N(CH2COOM)2 (I) R = 1-30C alkyl or 2-30C alkenyl (both optionally containing 1-5 OH, formyl, 1-4C alkoxy(carbonyl) or phenoxy groups and/or optionally containing up to 5 non-adjacent O atoms in the chain), alkoxylate groups of formula (II), phenyl-(1-20 C)-alkyl (optionally containing up to 3 1-4C alkyl, OH, carboxyl, sulpho or 1-4C alkoxycarbonyl ring substituents), 5- or 6-membered optionally benzalated heterocyclic ring containing up to 3 N, O or S atoms (optionally containing up to 3 1-4C alkyl, OH, carboxyl, sulpho or 1-4C alkoxycarbonyl substituents) or a group of formula (III): -(CH2)k-O-(A O)m-(A O)n-Y (II) -A-CH(COOM)-N(CH2COOM)2 (III) A , A = 2-4C 1,2-alkylene; Y = H, 1-12C alkyl, phenyl or 1-4C alkoxycarbonyl; k = 1-3; m, n = 0-50; A = 1-12C alkylene or single bond; and M = H, alkali(ne earth) metal or optionally substituted ammonium, with the provision that m+n = at least 4.
-
-
-
-
-
-
-
-
-