公开(公告)号：NO327829B1

公开(公告)日：2009-10-05

申请号：NO20023513

申请日：2002-07-23

Applicant: BASF AG

Inventor： AUER HEINZ ,  HAMMER HANS ,  BESSLING BERND ,  HASSE HANS ,  SAUER FRIEDRICH ,  WAGNER GERHARD ,  ADRIAN TILL ,  VICARI MAXIMILIAN

IPC: C07C51/09 ,  C07C51/56 ,  C07C51/44 ,  C07C51/48 ,  C07C53/02

Abstract: The invention relates to a process for obtaining anhydrous or substantially anhydrous formic acid in which, during the work-up, a compound of the general formula Iwhere the radicals R1 and R2 are alkyl, cycloalkyl, aryl or aralkyl groups, or R1 and R2 jointly, together with the N atom, form a heterocyclic 5- or 6-membered ring, and only one of the radicals is an aryl group, and where R3 is hydrogen or a C1-C4-alkyl group,is employed simultaneously as extractant for formic acid and as antifoam for a distillation process.

公开(公告)号：CA2345140C

公开(公告)日：2009-06-16

申请号：CA2345140

申请日：1999-09-21

Applicant: BASF AG

Inventor： VANSANT FRANS ,  HASSE HANS ,  ADRIAN TILL ,  THEIS GERHARD ,  BESSLING BERND

IPC: C07C29/76 ,  C07C29/10 ,  C07C29/80 ,  C07C31/20

Abstract: The invention relates to a method for obtaining highly pure monoethylene glycol from the product of hydrolysis of ethylene oxide by distillation, by means of dehydration under pressure, preferably in a cascade, vacuum dehydration and subsequent pure distillation. According to the inventive method, the pressure dehydration column or at lea st the first pressure dehydration column of the cascade (2, 3, 4) has a stripping section with at least one separation stage, preferably 2- 10 separation stages, especially 3-6 stages, and in that part of the top flow of the dehydration column(s) (2, 3, 4) is sluiced out with the stripping section.

公开(公告)号：NO20075864A

公开(公告)日：2008-03-05

申请号：NO20075864

申请日：2007-11-15

Applicant: BASF AG

Inventor： STROFER ECKHARD ,  HASSE HANS ,  BLAGOV SERGEJ

IPC: C07C41/50 ,  C07C43/30

CPC classification number: C07C41/50 ,  C07C41/58 ,  C07C43/303 ,  C07C43/30

公开(公告)号：NO20076065A

公开(公告)日：2008-01-14

申请号：NO20076065

申请日：2007-11-26

Applicant: BASF AG

Inventor： HASSE HANS ,  STROEFER ECKHARD ,  BLAGOV SERGEJ

IPC: C08G65/00 ,  C07C41/56 ,  C08G2/08

CPC classification number: C08G16/0212 ,  C07C41/56 ,  C07C43/30

公开(公告)号：DE102005037294A1

公开(公告)日：2007-02-15

申请号：DE102005037294

申请日：2005-08-08

Applicant: BASF AG

Inventor： LANG NEVEN ,  STROEFER ECKHARD ,  STAMMER ACHIM ,  FRIESE THORSTEN ,  SIEGERT MARKUS ,  HASSE HANS ,  GRUETZNER THOMAS ,  BLAGOV SERGEJ

IPC: C07D323/06

Abstract: The invention relates to an integrated process for preparing trioxane from formaldehyde in which, in a first step, a stream A 1 comprising water and formaldehyde and a recycle stream B 2 consisting substantially of water and formaldehyde are fed to a trioxane synthesis reactor in which the formaldehyde is converted to trioxane to obtain a product stream A 2 comprising trioxane, water and formaldehyde. Stream A 2 and a recycle stream D 1 comprising trioxane, water and formaldehyde are fed to a first distillation column and distilled at a pressure in the range from 0.1 to 2.5 bar to obtain a stream B 1 enriched in trioxane, and the stream B 2 consisting substantially of water and formaldehyde. Stream B 1 is fed to a second distillation column and distilled at a pressure in the range from 0.2 to 17.5 bar to obtain a product stream C 2 consisting substantially of trioxane, and a stream C 1 comprising trioxane, water and formaldehyde. Stream C 1 is fed to a third distillation column and distilled at a pressure in the range from 1 to 10 bar to obtain the recycle stream D 1 comprising trioxane, water and formaldehyde, and a stream D 2 consisting substantially of water.

公开(公告)号：AU2006259100A1

公开(公告)日：2006-12-21

申请号：AU2006259100

申请日：2006-06-12

Applicant: BASF AG

Inventor： BLAGOV SERGEJ ,  HASSE HANS ,  STROFER ECKHARD

IPC: C08G2/08 ,  C07C41/56

Abstract: Processes for preparing tri- and tetraoxymethylene glycol dimethyl ether (POMDMEn=3,4) include feeding a reaction mixture of an aqueous formaldehyde solution and methanol into a reactive evaporator and separating into a first low boiler fraction and a first high boiler fraction, recycling the first high boiler fraction into the reactor, feeding the first low boiler fraction into a first distillation column and separating into a second low boiler fraction and a second high boiler fraction, recycling the second high boiler fraction into the reactive evaporator, feeding the second low boiler fraction into a second distillation column and separating into a third low boiler fraction and a third high boiler fraction, feeding the third high boiler fraction into a phase separation apparatus and separating into an aqueous phase and an organic phase, and feeding the organic phase into a third distillation column and separating into a low and high boiler fractions.

公开(公告)号：SA1102B1

公开(公告)日：2006-08-12

申请号：SA99200783

申请日：1999-11-30

Applicant: BASF AG

Inventor： THEIS GERHARD ,  ADRIAN TILL ,  BEBLING BERND ,  HASSE HANS ,  VANSANT FRANS

IPC: C07C29/10 ,  C07C29/80 ,  C07C31/20

Abstract: الملخص: عمليةللتقطيرالاستخلاصلاحاديايثيلينجيكول monoethylene glycol عاليالنقاءمنناتجالتحللالمائيلاكسيدالايثيلين ethylene oxide بواسطةنزعالماءبالضغط،ويفضلفيمجموعةمتواحدة،مننزعالماءبالتفريغوالتقطيرالمنقىالتالي،حيثيتماثناءنزعالماءبالتفريغحسبتيارمائييحتويعلىاحاديايثيلينجيكول monoethylene glycol بتركيزاقلمن 1% بالوزن،ويفضلاقلمن 0,1% بالوزن،ومركباتمتوسطةالغليانومركباتمنخفضةالغليان . ويتمازالةالتيارالمائيالذيتمسحبةاختياريابعدالمعالجةمرةأخرىمنالنظام.20 ،

公开(公告)号：DE50109620D1

公开(公告)日：2006-06-01

申请号：DE50109620

申请日：2001-01-24

Applicant: BASF AG

Inventor： AUER HEINZ ,  BESSLING BERND ,  HAMMER HANS ,  HASSE HANS ,  SAUER FRIEDRICH ,  VICARI MAXIMILIAN ,  WAGNER GERHARD ,  ADRIAN TILL

IPC: C07C53/02 ,  C07C51/09 ,  C07C51/44 ,  C07C51/48 ,  C22C14/00 ,  C22C19/05 ,  C22C38/00 ,  C22C38/42 ,  C22C38/44

Abstract: The invention relates to an apparatus and a process for the preparation of anhydrous or substantially anhydrous formic acid. This apparatus is constructed partly or entirely of substantially zirconium-free materials. The extractant employed is a liquid of the general formula I where the radicals R 1 and R 2 are alkyl, cycloalkyl, aryl or aralkyl groups, or R 1 and R 2 jointly, together with the N atom, form a heterocyclic 5- or 6-membered ring, and only one of the radicals is an aryl group, and where R 3 is hydrogen or a C 1 -C 4 -alkyl group. The apparatus has a synthesis reactor ( 6 ), a hydrolysis reactor ( 1 ), three distillation devices ( 2,4,5 ) and an extraction device ( 3 ).

公开(公告)号：SA711B1

公开(公告)日：2006-04-22

申请号：SA98180836

申请日：1998-02-10

Applicant: BASF AG

Inventor： BEBLING BERND ,  MAYER THOMAS ,  PLUCKHAN JURGEN ,  HASSE HANS ,  AUER HEINZ

IPC: C07D301/32 ,  C07D303/04

Abstract: الملخص: فيعملية process لتنقية purification ethylene oxide بالتقطير distillation يدخلخليطمائييشمل ethylene oxide‘ formaldehyde وعلىالأقل 5% منالوزنماءعبرتغذيةإلىجهازتقطير distillation apparatus يشملعلىالأقلعمودتقطير distillation column واحد،يدخلالخليطعندارتفاعفوقالقاع bottom بعلىالأقل٨ مراحلنظرية،يرفع ethylene oxide عندالقمة top ونحصلفيطورالقاع bottom phase علىخليطيحتويعلىأقلمن 5% منالوزن.ethylene oxide،

公开(公告)号：DE50107981D1

公开(公告)日：2005-12-15

申请号：DE50107981

申请日：2001-01-24

Applicant: BASF AG

Inventor： AUER HEINZ ,  BESSLING BERND ,  HAMMER HANS ,  HASSE HANS ,  SAUER FRIEDRICH ,  VICARI MAXIMILIAN ,  WAGNER GERHARD ,  ADRIAN TILL

IPC: C07C51/56 ,  B01J14/00 ,  C07C51/09 ,  C07C51/44 ,  C07C51/48 ,  C07C53/02

Abstract: The invention relates to a process for the preparation of anhydrous or substantially anhydrous formic acid. The process has the special feature that a liquid of the general formula Iwhere the radicals R and R are alkyl, cycloalkyl, aryl or aralkyl groups, or R and R jointly, together with the N atom, form a heterocyclic 5- or 6-membered ring, and only one of the radicals is an aryl group, and where R is hydrogen or a C1-C4-alkyl group, employed as extractant is also employed as washing liquid for the offgases produced in the process.