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公开(公告)号：CA2630620A1
公开(公告)日：2007-05-31
申请号：CA2630620
申请日：2006-11-21
Applicant: BASF AG
Inventor： TELES JOAQUIM HENRIQUE , ROESSLER BEATRICE , BAUMANN DIETER
Abstract: The invention relates to a method for purifying a gas mixture G-0 containing dinitrogen monoxide, at least comprising: the absorption of the gas mixture G- 0 in an organic solvent, followed by; the desorption of a gas mixture G-1 fr om the loaded organic solvent; the absorption of the gas mixture G-1 in water a nd subsequently; the desorption of a gas mixture G-2 from the loaded water, and to the use of a purified gas mixture containing dinitrogen monoxide that can be obtained according to a method of the aforementioned type as oxidizing agents for olefins.
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公开(公告)号：MY128539A
公开(公告)日：2007-02-28
申请号：MYPI20011715
申请日：2001-04-10
Applicant: BASF AG
Inventor： ECK BERN , BAUMANN DIETER , HEILEK JOERG , MUELLER-ENGEL KLAUS JOACHIM DR
Abstract: IN A PROCESS FOR THE PURIFICATION OF A CRUDE ACRYLIC ACID MELT, THE CRUDE ACRYLIC ACID MELT IS CONVERTED, UNDER THE ACTION OF LOW TEMPERATURES, INTO A CRUDE ACRYLIC ACID SUSPENSION CONSISTING OF ACRYLIC ACID CRYSTALS AND RESIDUAL MELT, AND THE ACRYLIC ACID CRYSTALS OF THE CRUDE ACRYLIC ACID SUSPENSION ARE FREED FROM REMAINING RESIDUAL MELT IN A WASH COLUMN, THE PRODUCTION OF THE ACRYLIC ACID CRYSTALS OF THE CRUDE ACRYLIC ACID SUSPENSION BEING CARRIED OUT IN THE PRESENCE OF WATER, THE WASH COLUMN BEING A WASH COLUMN WITH FORCED TRANSPORT OF THE ACRYLIC ACID CRYSTALS AND THE WASH LIQUID USED BEING THE MELT OF ACRYLIC ACID CRYSTALS PURIFIED IN THE WASH COLUMN.
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公开(公告)号：AT335718T
公开(公告)日：2006-09-15
申请号：AT03808708
申请日：2003-10-06
Applicant: BASF AG
Inventor： THIEL JOACHIM , HAMMON ULRICH , BAUMANN DIETER , HEILEK JOERG , SCHROEDER JUERGEN , MUELLER-ENGEL KLAUS JOACHIM
Abstract: In a process for preparing acrylic acid, an acrylic acid-containing product gas mixture obtained by catalytic gas phase partial oxidation of a C 3 precursor of acrylic acid, after direct cooling with a quench liquid, is fractionally condensed in a separating column provided with internals, rising into itself with sidestream takeoff of crude acrylic acid, and the acrylic acid oligomers which form are dissociated and the resulting dissociation gas is subjected to a countercurrent rectification before it is recycled.
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公开(公告)号：CA2580732A1
公开(公告)日：2006-03-30
申请号：CA2580732
申请日：2005-09-22
Applicant: BASF AG
Inventor： GLASS ANDREAS , GENGER THOMAS , BAUMANN DIETER , LOENING JAN-MARTIN , TELES JOAQUIM HENRIQUE , ROESSLER BEATRICE
Abstract: The present invention relates to a process for purifying a gas mixture comprising dinitrogen monoxide and to the use of a gas mixture purified in this way as an oxidant for olefins. In a further embodiment, the present invention also relates to a process for preparing ketones comprising the oxidation of an olefin with a gas mixture which has been purified in accordance with the invention and comprises dinitrogen monoxide.
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公开(公告)号：PL189983B1
公开(公告)日：2005-10-31
申请号：PL33502398
申请日：1998-02-09
Applicant: BASF AG
Inventor： RAULS MATTHIAS , BAUMANN DIETER , WISTUBA HERMANN , OTTO BERNHARD
Abstract: Dicarboxylic acid crystals are prepared from a solution containing at least one organic dicarboxylic acid in a process in which at least one anionic polyelectrolyte having a molecular weight of at least 2000 is added to the solution before or during the crystallization.
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Patent Agency Ranking
公开(公告)号：DE10315671A1
公开(公告)日：2004-10-14
申请号：DE10315671
申请日：2003-04-04
Applicant: BASF AG
Inventor： BERTLEIN GERHARD , SCHALL KARL HEINZ , MAASE MATTHIAS , HEILEK JOERG , BAUMANN DIETER , ASCHERL HERMANN
IPC: C07F9/53
Abstract: The present invention relates to a process for the preparation of solid acylphosphine oxides by converting an acylphosphine oxide which is in the form of a melt or in dispersed form into the solid state of aggregation with mechanical stress, shearing/internal agitation of the melt.
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公开(公告)号：AU2003276052A1
公开(公告)日：2004-05-04
申请号：AU2003276052
申请日：2003-10-06
Applicant: BASF AG
Inventor： HAMMON ULRICH , BAUMANN DIETER , HEILEK JORG , SCHRODER JURGEN , MULLER-ENGEL KLAUS JOACHIM , THIEL JOACHIM
Abstract: In a process for preparing acrylic acid, an acrylic acid-containing product gas mixture obtained by catalytic gas phase partial oxidation of a C 3 precursor of acrylic acid, after direct cooling with a quench liquid, is fractionally condensed in a separating column provided with internals, rising into itself with sidestream takeoff of crude acrylic acid, and the acrylic acid oligomers which form are dissociated and the resulting dissociation gas is subjected to a countercurrent rectification before it is recycled.
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公开(公告)号：DE50101261D1
公开(公告)日：2004-02-05
申请号：DE50101261
申请日：2001-01-24
Applicant: BASF AG
Inventor： DE DECKER EMILE , BASTIAENSEN ERIK , BAUMANN DIETER , ECK BERND , HEILEK JOERG
Abstract: Purification of (meth)acrylic acid by crystallisation is carried out using a combination of >=2 different dynamic crystallisation processes.
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公开(公告)号：DE50004737D1
公开(公告)日：2004-01-22
申请号：DE50004737
申请日：2000-05-31
Applicant: BASF AG
Inventor： ECK BERND , HEILEK JOERG , BAUMANN DIETER , SCHLIEPHAKE VOLKER
Abstract: Acrylic acid or methacrylic acid is purified by crystallization to obtain crystals and a mother liquor, by a process in which the crystals are washed with a wash liquid containing the acid and having a temperature from 15 to 40° C. Furthermore, a process for the preparation of acrylic acid or methacrylic acid comprises the abovementioned purification process.
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公开(公告)号：DE10156016A1
公开(公告)日：2003-06-05
申请号：DE10156016
申请日：2001-11-15
Applicant: BASF AG
Inventor： HEILEK JOERG , BAUMANN DIETER , ECK BERND , HAMMON ULRICH , MUELLER-ENGEL KLAUS
Abstract: An apparatus for separating crystals from their suspension in contaminated crystal melt with purification, in which a hydraulic wash column has distributor aids in a distributor space.
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