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公开(公告)号：ES2193960T3
公开(公告)日：2003-11-16
申请号：ES00929550
申请日：2000-05-23
Applicant: BASF AG
Inventor： MOHRSCHLADT RALF , HILDEBRANDT VOLKER , KRAUSS DIETER , LEEMANN MARTIN
Abstract: In a process for producing polyamides, a mixture comprising hexamethylenediamine and aminocapronitrile and obtained from the hydrogenation of adiponitrile is reacted with water and a dicarboxylic acid.
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公开(公告)号：PL342289A1
公开(公告)日：2001-06-04
申请号：PL34228999
申请日：1999-01-29
Applicant: BASF AG
Inventor： MOHRSCHLADT RALF , KRAUSS DIETER , HILDEBRANDT VOLKER
Abstract: The continuous process for producing a polyamide by reacting at least one aminonitrile with water comprises the following steps:(1) reacting at least one aminonitrile with water at a temperature from 90 to 400° C. and a pressure from 0.1 to 15x106 Pa in a flow tube containing packing elements of a Brönsted acid catalyst selected from beta-zeolite, sheet-silicate or titanium dioxide packing elements and metallic packing elements to obtain a reaction mixture,(2) further reacting the reaction mixture at from 150 to 400° C. and a pressure which is lower than the pressure in step 1, the temperature and pressure being selected so as to obtain a first gas phase and a first liquid or a first solid phase or a mixture of first solid and first liquid phase, and the first gas phase is separated from the first liquid or first solid phase or the mixture of first liquid and first solid phase, and(3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phase with a gaseous or liquid phase comprising water at a temperature from 150 to 370° C. and a pressure from 0.1 to 30x106 Pa to obtain a product mixture.
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公开(公告)号：TR200002250T2
公开(公告)日：2000-12-21
申请号：TR200002250
申请日：1999-01-29
Applicant: BASF AG
Inventor： MOHRSCHLADT RALF , KRAUSS DIETER , HIDENBRANDT VOLKER
Abstract: The continuous process for producing a polyamide by reacting at least one aminonitrile with water comprises the following steps:(1) reacting at least one aminonitrile with water at a temperature from 90 to 400° C. and a pressure from 0.1 to 15x106 Pa in a flow tube containing packing elements of a Brönsted acid catalyst selected from beta-zeolite, sheet-silicate or titanium dioxide packing elements and metallic packing elements to obtain a reaction mixture,(2) further reacting the reaction mixture at from 150 to 400° C. and a pressure which is lower than the pressure in step 1, the temperature and pressure being selected so as to obtain a first gas phase and a first liquid or a first solid phase or a mixture of first solid and first liquid phase, and the first gas phase is separated from the first liquid or first solid phase or the mixture of first liquid and first solid phase, and(3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phase with a gaseous or liquid phase comprising water at a temperature from 150 to 370° C. and a pressure from 0.1 to 30x106 Pa to obtain a product mixture.
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公开(公告)号：BR9908785A
公开(公告)日：2000-12-05
申请号：BR9908785
申请日：1999-01-29
Applicant: BASF AG
Inventor： MOHRSCHLADT RALF , KRAUSS DIETER , HILDEBRANDT VOLKER
Abstract: The continuous process for producing a polyamide by reacting at least one aminonitrile with water comprises the following steps:(1) reacting at least one aminonitrile with water at a temperature from 90 to 400° C. and a pressure from 0.1 to 15x106 Pa in a flow tube containing packing elements of a Brönsted acid catalyst selected from beta-zeolite, sheet-silicate or titanium dioxide packing elements and metallic packing elements to obtain a reaction mixture,(2) further reacting the reaction mixture at from 150 to 400° C. and a pressure which is lower than the pressure in step 1, the temperature and pressure being selected so as to obtain a first gas phase and a first liquid or a first solid phase or a mixture of first solid and first liquid phase, and the first gas phase is separated from the first liquid or first solid phase or the mixture of first liquid and first solid phase, and(3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phase with a gaseous or liquid phase comprising water at a temperature from 150 to 370° C. and a pressure from 0.1 to 30x106 Pa to obtain a product mixture.
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公开(公告)号：ID18204A
公开(公告)日：1998-03-12
申请号：ID973048
申请日：1997-09-01
Applicant: BASF AG
Inventor： WEISS ROBERT , KRAUSS DIETER , KELLER DIETER , PIPPER GUNTER , HARDER WOLFGANG , LUDWIG ALFONS , MOHRSCHLADT RALF
Abstract: A process for preparing a polyamide by reacting at least one aminonitrile with water comprises:(1) reacting at least one aminonitrile with water at a temperature from 100 to 360° C. and a pressure from 0.1 to 35x106 Pa to obtain a reaction mixture,(2) further reacting the reaction mixture at a temperature from 150 to 400° C. and a pressure which is lower than the pressure in step 1, the temperature and the pressure being selected so as to obtain a first gas phase and a first liquid or a first solid phase or a mixture of first solid and first liquid phase, and the first gas phase is separated from the first liquid or the first solid phase or from the mixture of first liquid and first solid phase, and(3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phase with a gaseous or liquid phase comprising water at a temperature from 150 to 360° C. and a pressure from 0.1 to 30x106 Pa to obtain a product mixture.
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Patent Agency Ranking
公开(公告)号：ES2241687T3
公开(公告)日：2005-11-01
申请号：ES00990757
申请日：2000-12-14
Applicant: BASF AG
Inventor： MOHRSCHLADT RALF , WINTERLING HELMUT , KRAUSS DIETER
Abstract: Procedimiento en dos etapas para la obtención de poliamidas a partir de aminonitrilos y de agua mediante reacción de aminonitrilos con agua a una temperatura en el intervalo desde 180 hasta 350ºC y a una presión en el intervalo desde 30 hasta 120 bares, que se ajusta de tal manera que esté presente una fase gaseosa además de una fase líquida, en una primera etapa de reacción, descompresión de la mezcla de la reacción obtenida en la primera etapa de la reacción, a través de una zona de evaporación o adiabáticamente y eliminación de agua y de amoníaco en una segunda etapa de reacción y condensación final en la segunda etapa de reacción a una presión en el intervalo desde 0, 1 mbares hasta 5 bares y a una temperatura en el intervalo desde 230 hasta 320ºC.
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公开(公告)号：AT296850T
公开(公告)日：2005-06-15
申请号：AT00990757
申请日：2000-12-14
Applicant: BASF AG
Inventor： MOHRSCHLADT RALF , WINTERLING HELMUT , KRAUSS DIETER
Abstract: Polyamides are prepared from aminonitriles and water by(1) reacting the aminonitriles with water at from 180 to 350° C. and such a pressure in the range from 30 to 120 bar that a gaseous phase is present as well as a liquid phase, in a first reaction stage,(2) expanding the reaction mixture obtained in the first reaction stage via an evaporator zone or adiabatically with removal of water and ammonia into a second reaction stage, and(3) postcondensing in the second reaction stage at from 0.1 mbar to 5 bar and from 230 to 320° C.
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公开(公告)号：ES2187826T3
公开(公告)日：2003-06-16
申请号：ES97944794
申请日：1997-08-26
Applicant: BASF AG
Inventor： WEISS ROBERT , KRAUSS DIETER , KELLER DIETER , PIPPER GUNTER , HARDER WOLFGANG , LUDWIG ALFONS
Abstract: A process for preparing a polyamide by reacting at least one aminonitrile with water comprises:(1) reacting at least one aminonitrile with water at a temperature from 100 to 360° C. and a pressure from 0.1 to 35x106 Pa to obtain a reaction mixture,(2) further reacting the reaction mixture at a temperature from 150 to 400° C. and a pressure which is lower than the pressure in step 1, the temperature and the pressure being selected so as to obtain a first gas phase and a first liquid or a first solid phase or a mixture of first solid and first liquid phase, and the first gas phase is separated from the first liquid or the first solid phase or from the mixture of first liquid and first solid phase, and(3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phase with a gaseous or liquid phase comprising water at a temperature from 150 to 360° C. and a pressure from 0.1 to 30x106 Pa to obtain a product mixture.
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公开(公告)号：DE50001448D1
公开(公告)日：2003-04-17
申请号：DE50001448
申请日：2000-05-23
Applicant: BASF AG
Inventor： MOHRSCHLADT RALF , HILDEBRANDT VOLKER , KRAUSS DIETER , LEEMANN MARTIN
Abstract: In a process for producing polyamides, a mixture comprising hexamethylenediamine and aminocapronitrile and obtained from the hydrogenation of adiponitrile is reacted with water and a dicarboxylic acid.
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公开(公告)号：DE59900744D1
公开(公告)日：2002-02-28
申请号：DE59900744
申请日：1999-01-29
Applicant: BASF AG
Inventor： MOHRSCHLADT RALF , KRAUSS DIETER , HILDEBRANDT VOLKER
Abstract: The continuous process for producing a polyamide by reacting at least one aminonitrile with water comprises the following steps:(1) reacting at least one aminonitrile with water at a temperature from 90 to 400° C. and a pressure from 0.1 to 15x106 Pa in a flow tube containing packing elements of a Brönsted acid catalyst selected from beta-zeolite, sheet-silicate or titanium dioxide packing elements and metallic packing elements to obtain a reaction mixture,(2) further reacting the reaction mixture at from 150 to 400° C. and a pressure which is lower than the pressure in step 1, the temperature and pressure being selected so as to obtain a first gas phase and a first liquid or a first solid phase or a mixture of first solid and first liquid phase, and the first gas phase is separated from the first liquid or first solid phase or the mixture of first liquid and first solid phase, and(3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phase with a gaseous or liquid phase comprising water at a temperature from 150 to 370° C. and a pressure from 0.1 to 30x106 Pa to obtain a product mixture.
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