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公开(公告)号：DE4444979A1
公开(公告)日：1996-06-20
申请号：DE4444979
申请日：1994-12-16
Applicant: BASF AG
Inventor： HAMMER HANS , HERR MANFRED , HUPFER LEOPOLD DR , BESLING BERND , PAN DONGFENG DR , ZECK SEBASTIAN DR , AUER HEINZ , SCHOENMAKERS HARTMUT DR
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公开(公告)号：DE3060960D1
公开(公告)日：1982-11-25
申请号：DE3060960
申请日：1980-04-03
Applicant: BASF AG
Inventor： WOLF DIETER DR , SCHMIDT RUDOLF DR , BLOCK ULRICH DR , SCHOENMAKERS HARTMUT DR , BOTT KASPAR DR , KAIBEL GERD
Abstract: Anhydrous or substantially anhydrous formic acid is obtained by hydrolysis of methyl formate, in a process wherein (a) methyl formate is hydrolyzed, (b) the methanol and excess methyl formate are distilled from the hydrolysis mixture obtained, (c) the bottom product of distillation (b), consisting of formic acid and water, is extracted, in a liquid-liquid extraction, with an extractant which in the main takes up the formic acid, (d) the resulting extract phase, consisting of formic acid, the extractant and a part of the water, is subjected to distillation, (e) the top product obtained from this distillation and consisting of all or part of the water introduced into the distillation, and part of the formic acid, is recycled, as vapor, into the lower part of the distillation column of stage (b), (f) the bottom product of distillation stage (d), consisting of the extractant, with or without part of the water, and the greater part of the formic acid, is separated by distillation into anhydrous or substantially anhydrous formic acid and the extractant, and (g) the extractant leaving stage (f) is recycled to the process.
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Patent Agency Ranking
公开(公告)号：MY139666A
公开(公告)日：2009-10-30
申请号：MYPI20043155
申请日：2004-08-04
Applicant: BASF AG
Inventor： BESTE YORK ALEXANDER DR , SCHOENMAKERS HARTMUT DR , ARLT WOLFGANG PROF DR , SEILER MATTHIAS , JORK CARSTEN
Abstract: PROCESS FOR WORKING UP A BOTTOM STREAM WHEREIN HIGH BOILERS AND IONIC LIQUID FROM AN EXTRACTIVE RECTIFICATION IN WHICH THE IONIC LIQUID IS USED AS ENTRAINER. THE PROCESS INCLUDES FEEDING THE BOTTOM STREAM TO AN EVAPORATION STAGE WHICH IS OPERATED AT A PRESSURE OF LESS THAN 0.05 MPA (500 MBAR) OR TO A STRIPPER WHICH IS OPERATED THROUGH USE OF INERT GAS OR STEAM, AND THE MAJOR PART OF THE HIGH BOILER PRESENT IS SEPARATED OFF IN VAPOR FORM FROM THE IONIC LIQUID.
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公开(公告)号：ES2173064T3
公开(公告)日：2002-10-16
申请号：ES00114475
申请日：2000-07-06
Applicant: BASF AG
Inventor： RIECHERS HARTMUT DR , HOHN ARTHUR DR , SIMON JOACHIM DR , LANG ORTMUND , SCHOENMAKERS HARTMUT DR , RAULS MATTHIAS DR
IPC: C07D487/08 , C07D471/08
Abstract: Preparation of a solution of pure triethylenediamine (TEDA) comprises vaporizing TEDA and passing the TEDA vapor into a liquid solvent. An Independent claim is also included for the preparation of pure TEDA by preparing the solution as above and crystallizing TEDA from this solution.
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5.发明专利
公开(公告)号：MY140258A
公开(公告)日：2009-12-31
申请号：MYPI20043139
申请日：2004-08-04
Applicant: BASF AG
Inventor： BESTE YORK ALEXANDER DR , SCHOENMAKERS HARTMUT DR
Abstract: DISTlLLATIVE METHOD FOR SEPARATING NARROW BOILING OR AZEOTROPIC MIXTURFS USING IONIC LIQUIDS Abstract A process for separating azeotropic or close-boiling mixtures by means of an extractive rectification in which an ionic liquid is used as entrainer, wherein a high boiling bottom product is taken off from the column in vapor form via a side offtake. (Figure 2)
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公开(公告)号：MY137780A
公开(公告)日：2009-03-31
申请号：MYPI20055157
申请日：2005-10-31
Applicant: BASF AG
Inventor： BESTE YORK ALEXENDER DR , EGGERSMANN MARKUS , SCHOENMAKERS HARTMUT DR
Abstract: PROCESS FOR CHEMICAL REACTION AND SEPARATION OF A MIXTURE IN A COLUMN, WHEREIN AN EXTRACTIVE DISTILLATION IS AT LEAST PARTIALLY SUPERIMPOSED ON A REACTIVE DISTILLATION IN THE COLUMN AND AN IONIC LIQUID IS INTRODUCED AS ENTRAINER INTO THE COLUMN.
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公开(公告)号：DE59505506D1
公开(公告)日：1999-05-06
申请号：DE59505506
申请日：1995-12-15
Applicant: BASF AG
Inventor： HAMMER HANS , HERR MANFRED , HUPFER LEOPOLD DR , BESSLING BERND , PAN DONGFENG DR , ZECK SEBASTIAN DR , AUER HEINZ , SCHOENMAKERS HARTMUT DR
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