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公开(公告)号：DE10218616A1
公开(公告)日：2003-06-18
申请号：DE10218616
申请日：2002-04-25
Applicant: BASF AG
Inventor： HAMMON ULRICH , THIEL JOACHIM , SCHLIEPHAKE VOLKER
Abstract: Insert has an operating opening. Independent claims are also included for a process for separating a mixture in a separating column; and a process for cooling a gas in a condenser.
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公开(公告)号：DE10156988A1
公开(公告)日：2003-05-28
申请号：DE10156988
申请日：2001-11-21
Applicant: BASF AG
Inventor： THIEL JOACHIM , SCHROEDER JUERGEN
Abstract: A column for the thermal treatment of a mixture has dual-flow stages with openings having a constant diameter within a dual-flow stage. The dual-flow stages at an increasing distance from the addition point of the gases to be treated have openings of decreasing diameter. An Independent claim is also included for the thermal treatment of a mixture comprising at least one polymerizable compound in the column.
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公开(公告)号：DE10131788A1
公开(公告)日：2003-01-16
申请号：DE10131788
申请日：2001-07-04
Applicant: BASF AG
Inventor： WOSTBROCK KARL-HEINZ , THIEL JOACHIM , GERBER BERND , KRUEGER HEINZ , STROEFER ECKHARD , KERTH STEFFEN , SACHWEH BERND , RUMPF BERND , WEBER MARKUS
Abstract: The invention relates to a method for producing a highly pure, aqueous hydroxylamine solution by distilling an aqueous solution, devoid of salt, of a hydroxyl ammonium salt in a plate column comprising at least two mechanical plates. Said method is characterised in that packing bodies are arranged between at least two plates of the plate column over the cross-section of said column.
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公开(公告)号：CA2450107A1
公开(公告)日：2003-01-16
申请号：CA2450107
申请日：2002-07-02
Applicant: BASF AG
Inventor： RUMPF BERND , SACHWEH BERND , KERTH STEFFEN , STROFER ECKHARD , KRUGER HEINZ , WOSTBROCK KARL-HEINZ , THIEL JOACHIM , GERBER BERND , WEBER MARKUS
Abstract: The invention relates to a method for the production of a salt-free aqueous hydroxylamine solution by distilling an aqueous solution of an hydroxylammonium salt and a base in a plate column having at least two mechanical plates. The invention is characterized in that packings or structured packings are placed above at least one of the plates of the plate column along the cross section of said column.
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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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Patent Agency Ranking
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：ID30252A
公开(公告)日：2001-11-15
申请号：ID20002702
申请日：1999-06-30
Applicant: BASF AG
Inventor： BASTIAENSEN ERIK , ECK BERND , THIEL JOACHIM
Abstract: In a process for the purification of acrylic acid or methacrylic acid by crystallization and distillation, the following steps are carried out:(a) crystallization of a mixture containing the acrylic acid or methacrylic acid with formation of product crystals having a higher concentration of acrylic acid or methacrylic acid and of a mother liquor,(b) distillation of at least part of the mother liquor from step (a) with formation of a distillation residue, which is at least partly removed, and of a top product,(c) crystallization of at least part of the top product from step (b) with formation of a crystallization residue, which is removed, and of crystals and(d) recycling of the crystals from step (c) to the crystallization (a).
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公开(公告)号：CZ20000885A3
公开(公告)日：2000-08-16
申请号：CZ20000885
申请日：1998-09-09
Applicant: BASF AG
Inventor： ECK BERND , MACHHAMMER OTTO , PROLL THEO , SCHLIEPHAKE VOLKER , THIEL JOACHIM , BROELLOS KLAUS
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公开(公告)号：CA2450107C
公开(公告)日：2009-09-22
申请号：CA2450107
申请日：2002-07-02
Applicant: BASF AG
Inventor： GERBER BERND , WEBER MARKUS , KRUGER HEINZ , STROFER ECKHARD , THIEL JOACHIM , RUMPF BERND , WOSTBROCK KARL-HEINZ , SACHWEH BERND , KERTH STEFFEN
Abstract: The invention relates to a method for the production of a salt-free aqueous hydroxylamine solution by distilling an aqueous solution of an hydroxylammonium salt and a base in a plate column having at least two mechanical plates. The invention is characterized in that packings or structured packings are placed above at least one of the plates of the plate column along the cross section of said column.
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公开(公告)号：ES2175794T5
公开(公告)日：2008-03-01
申请号：ES98948948
申请日：1998-09-09
Applicant: BASF AG
Inventor： ECK BERND , MACHHAMMER OTTO , PROLL THEO , SCHLIEPHAKE VOLKER , THIEL JOACHIM , BROLLOS KLAUS
Abstract: Procedimiento para la separación de ácido acrílico o ácido metacrílico a partir de una mezcla gaseosa, que contiene, además de ácido acrílico o ácido metacrílico, aún al menos otro componente, caracterizado porque a) se condensa la mezcla gaseosa, b) se cristaliza ácido acrílico o ácido metacrílico a partir de la disolución obtenida en la etapa a), c) se separa los cristales obtenidos a partir de las aguas madre de la etapa b), y d) se devuelve al menos una cantidad parcial de las aguas madre de la etapa c) a la etapa a) tras la separación.
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