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公开(公告)号：NO327886B1
公开(公告)日：2009-10-12
申请号：NO20023480
申请日：2002-07-22
Applicant: BASF AG
Inventor： AUER HEINZ , HAMMER HANS , BESSLING BERND , HASSE HANS , SAUER FRIEDRICH , WAGNER GERHARD , ADRIAN TILL , VICARI MAXIMILIAN
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.
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公开(公告)号：NO327831B1
公开(公告)日：2009-10-05
申请号：NO20023481
申请日：2002-07-22
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 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.
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63.发明专利
公开(公告)号：MY138351A
公开(公告)日：2009-05-29
申请号：MYPI20043895
申请日：2004-09-23
Applicant: BASF AG
Inventor： REIF WOLFGANG DR , HAMMER HANS , RUIDER G XDCNTHER DR , MEIER ANTON DR , BUSKENS PHILIP DR , FRAUENKRON MATTHIAS DR
IPC: C07C213/10 , C07C215/12
Abstract: PROCESS FOR SEPARATING TRIETHANOLAMINE CONTINUOUSLY BY DISTILLATION FROM A MIXTURE OF MONOETHANOLAMINE, DIETHANOLAMINE AND TRIETHANOLAMINE TOGETHER WITH ETHANOLAMINE ETHERS AND WATER OBTAINED BY REACTION OF AMMONIA WITH ETHYLENE OXIDE IN THE LIQUID PHASE UNDER SUPERATMOSPHERIC PRESSURE AND AT ELEVATED TEMPERATURE, IN WHICH THE MIXTURE IS DISTILLED IN TWO STAGES. THE LOW-BOILING FRACTION AND THE HIGH-BOILING FRACTION ARE TAKEN OFF AND DISCHARGED IN THE FIRST STAGE AND THE INTERMEDIATE-BOILING FRACTION COMPRISING > 99.4% BY WEIGHT OF TRIETHANOLAMINE AND
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公开(公告)号：MY131970A
公开(公告)日：2007-09-28
申请号：MYPI20010183
申请日：2001-01-16
Applicant: BASF AG
Inventor： AUER HEINZ , XDFLING BERND BE DR , HAMMER HANS , HASSE HANS PROF DR , SAUER FRIEDRICH , VICARI MAXIMILIAN DR , ADRIAN TILL DR
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.
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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
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Patent Agency Ranking
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.
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公开(公告)号：NO20020349L
公开(公告)日：2002-01-23
申请号：NO20020349
申请日：2002-01-23
Applicant: BASF AG
Inventor： AUER HEINZ , DAHLHAUS JUERGEN , FISCHER KARL , HAMMER HANS , KELLENBENZ JOCHEN , SCHULZ MICHAEL , THIEL JOACHIM , VICARI MAXIMILIAN
IPC: B01J3/00 , B01D3/00 , B01J3/02 , B01J19/00 , C07B61/00 , C07C29/80 , C07C31/04 , C07C67/36 , C07C69/06
Abstract: A description is given of a process for preparing methyl formate by reacting excess methanol with carbon monoxide under superatmospheric pressure and at elevated temperature in the presence of alkali metal methoxide or alkaline earth metal methoxide as catalyst in a pressure-rated reactor, in which the use of at least two reactor elements, preferably operated in countercurrent, at about 100° C. and a pressure of about 100 bar in combination with a solids-free desalting of the reaction product makes possible very economical, largely trouble-free production of methyl formate in any desired quality and with a very good production capacity. Furthermore, the process for solids-free desalting and apparatuses for carrying out this process are described.
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公开(公告)号：NO20020349A
公开(公告)日：2002-01-23
申请号：NO20020349
申请日：2002-01-23
Applicant: BASF AG
Inventor： AUER HEINZ , DAHLHAUS JUERGEN , FISCHER KARL , HAMMER HANS , KELLENBENZ JOCHEN , SCHULZ MICHAEL , THIEL JOACHIM , VICARI MAXIMILIAN
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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.
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70.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.
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