-
公开(公告)号：NO20023514A
公开(公告)日：2002-08-22
申请号：NO20023514
申请日：2002-07-23
Applicant: BASF AG
Inventor： AUER HEINZ , BESSLING BERND , HAMMER HANS , HASSE HANS , SAUER FRIEDRICH , VICARI MAXIMILIAN , ADRIAN TILL
-
公开(公告)号：NO20023481L
公开(公告)日：2002-08-21
申请号：NO20023481
申请日：2002-07-22
Applicant: BASF AG
Inventor： AUER HEINZ , BESSLING BERND , HAMMER HANS , HASSE HANS , SAUER FRIEDRICH , VICARI MAXIMILIAN , ADRIAN TILL
Abstract: The invention relates to a process for obtaining anhydrous or substantially anhydrous formic acid, in which firstly aqueous formic acid is prepared by hydrolysis of methyl formate and is freed from water in the subsequent work-up. The process has the special feature that steam, which is employed for the hydrolysis of methyl formate and for heating a distillation column serving for work-up, is also used as stripping steam for waste-water stripping. The stripped waste water is produced during work-up.
-
公开(公告)号：ES2158507T3
公开(公告)日：2001-09-01
申请号：ES97909234
申请日：1997-09-19
Applicant: BASF AG
Inventor： BLANKERTZ HEINRICH-JOSEF , GRENACHER ARMIN VOLKER , SAUER FRIEDRICH , SCHWAHN HARALD , SCHONMANN WILLI , ROEPER MICHAEL
Abstract: In a process for the hydroformylation of olefins having from 12 to 100 carbon atoms in the presence of a cobalt carbonyl catalyst at pressures of from 100 to 400 bar and at from 100 to 200° C., depressurization and recovery of the cobalt catalyst by extraction with an aqueous acid solution in the presence of atmospheric oxygen,(a) the extraction is carried out in the presence of a polymeric emulsion breaker selected from the group consisting of alkoxylated compounds containing amino, imino or OH groups, and(b) to achieve complete phase separation in the organic phase still containing small amounts of aqueous phase, the formation of relatively large droplets of the dispersed aqueous phase is effected in a coalescence stage.
-
公开(公告)号：AU3541601A
公开(公告)日：2001-08-07
申请号：AU3541601
申请日：2001-01-12
Applicant: BASF AG
Inventor： AUER HEINZ , BESSLING BERND , HAMMER HANS , HASSE HANS , SAUER FRIEDRICH , VICARI MAXIMILIAN , ADRIAN TILL
Abstract: The invention relates to a process for obtaining anhydrous or substantially anhydrous formic acid, in which firstly aqueous formic acid is prepared by hydrolysis of methyl formate and is freed from water in the subsequent work-up. The process has the special feature that steam, which is employed for the hydrolysis of methyl formate and for heating a distillation column serving for work-up, is also used as stripping steam for waste-water stripping. The stripped waste water is produced during work-up.
-
35.发明专利
公开(公告)号：AU2848701A
公开(公告)日：2001-08-07
申请号：AU2848701
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
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.
-
Patent Agency Ranking
公开(公告)号：DE59703815D1
公开(公告)日：2001-07-26
申请号：DE59703815
申请日：1997-09-19
Applicant: BASF AG
Inventor： BLANKERTZ HEINRICH-JOSEF , GRENACHER VOLKER , SAUER FRIEDRICH , SCHWAHN HARALD , SCHOENMANN WILLI , ROEPER MICHAEL
Abstract: In a process for the hydroformylation of olefins having from 12 to 100 carbon atoms in the presence of a cobalt carbonyl catalyst at pressures of from 100 to 400 bar and at from 100 to 200° C., depressurization and recovery of the cobalt catalyst by extraction with an aqueous acid solution in the presence of atmospheric oxygen,(a) the extraction is carried out in the presence of a polymeric emulsion breaker selected from the group consisting of alkoxylated compounds containing amino, imino or OH groups, and(b) to achieve complete phase separation in the organic phase still containing small amounts of aqueous phase, the formation of relatively large droplets of the dispersed aqueous phase is effected in a coalescence stage.
-
公开(公告)号：DE2933601A1
公开(公告)日：1981-03-12
申请号：DE2933601
申请日：1979-08-18
Applicant: BASF AG
Inventor： KRUEGER SIEGFRIED , SCHMIDT RUDOLF DIPL ING DR , SAUER FRIEDRICH , STEEN JAAK VAN , PEE WILLY VAN DIPL CHEM DR , OHLINGER RAINER DIPL CHEM DR , BRANDTSTAEDTER HORST DR , ASTHMEIER HANS-JOACHIM DIPL CH
IPC: B01D3/10 , C07C20060101 , C07C265/12 , C07C119/048
Abstract: A process for the manufacture of 4,4'-diphenylmethane diisocyanate and a mixture of diphenylmethane diisocyanate isomers containing a controllable amount of uretdione and hydrolizable chlorine which comprises feeding crude MDI to an evaporator, condensing a head fraction in two stages in the presence of an inert gas, feeding the first stage condensate to a distillation column, producing a mixture of diphenylmethane diisocyanate isomers as an overhead, producing 4,4'-diphenylmethane diisocyanate as a side draw, and condensing each of the overhead and side draw in two stages in the presence of an inert gas.
-
公开(公告)号：NO327827B1
公开(公告)日：2009-10-05
申请号：NO20023514
申请日：2002-07-23
Applicant: BASF AG
Inventor： AUER HEINZ , HAMMER HANS , BESSLING BERND , HASSE HANS , SAUER FRIEDRICH , ADRIAN TILL , VICARI MAXIMILIAN
Abstract: The invention relates to a process for obtaining anhydrous or substantially anhydrous formic acid, in which firstly aqueous formic acid is produced by hydrolysis of methyl formate, with the methanol content in the methyl formate having been reduced in advance. The process according to the invention has the special feature that-before the hydrolysis of the methyl formate-the methanol content of the methanol-containing methyl formate is reduced in a distillation column, this distillation column simultaneously being employed for other separation functions during work-up of the formic acid.
-
公开(公告)号：MY136296A
公开(公告)日：2008-09-30
申请号：MYPI20010197
申请日：2001-01-17
Applicant: BASF AG
Inventor： AUER HEINZ , BEBLING BERND DR , HAMMER HANS , HASSE HANS PROF DR , SAUER FRIEDRICH , VICARI MAXIMILIAN DR , WAGNER GERHARD DR , ADRIAN TILL DR
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 1 WHERE THE RADICALS R1 AND R2 ARE ALKYL,CYCLOALKYL, ARYL OR ARALKYL GROUPS, OR R1 AND R2 JOINTLY, TOGETHER WITH THE N ATOM, FROM 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.FIG.3
-
公开(公告)号：MY128642A
公开(公告)日：2007-02-28
申请号：MYPI20010228
申请日：2001-01-18
Applicant: BASF AG
Inventor： AUER HEINZ , BESSLING BERND DR , HAMMER HANS , HASSE HANS PROF DR , SAUER FRIEDRICH , VICARI MAXIMILIAN DR , WAGNER GERHARD DR , ADRIAN TILL DR
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 FOR THE PREPARATION OF ANHYDROUS OR SUBSTANTIALLY ANHYDROUS FOMIC ACID.THIS APPARATUS IS CONSTRUCTED OF SUBSTANTIALLY ZIRCONIUM - FREE MATERIALS .THE ANTICORROSION AGENT EMPLOYED IS A LIQUID OF THE GENERAL FORMUILA 1WHERE THE RADICALS R¹ AND R² ARE ALKYL,CYCLOALKYL, ARYL OR ARALKYL GROUPS, OR R¹ AND R² JOINTLY, TOGETHER WITH THE N ATOM, FROM 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.(FIG 2)
-
-
-
-
-
-
-
-
-
Search Results
69
records
(took 0.023 seconds)
