-
公开(公告)号：ES2171332T3
公开(公告)日：2002-09-01
申请号：ES99932412
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.
-
公开(公告)号：SK11092000A3
公开(公告)日：2001-04-09
申请号：SK11092000
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.
-
公开(公告)号：ID25662A
公开(公告)日：2000-10-19
申请号：ID20001480
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.
-
14.发明专利
公开(公告)号：CZ9900675A3
公开(公告)日：1999-06-16
申请号：CZ67599
申请日：1997-08-26
Applicant: BASF AG
Inventor： WEISS ROBERT , KRAUSS DIETER , KELLER DIETER , PIPPER GUNTER , HARDER WOLFGANG , LUDWIG ALFONS , MOHRSCHLADT RALF
-
公开(公告)号：ZA977787B
公开(公告)日：1999-03-01
申请号：ZA977787
申请日：1997-08-29
Applicant: BASF AG
Inventor： WEISS ROBERT , KRAUSS DIETER , KELLER DIETER , PIPPER GUNTER , HARDER WOLFGANG , LUDWIG ALFONS , MOHRSCHLADT RALF
-
Patent Agency Ranking
公开(公告)号：DE50010478D1
公开(公告)日：2005-07-07
申请号：DE50010478
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.
-
17.发明专利
公开(公告)号：CZ293844B6
公开(公告)日：2004-08-18
申请号：CZ67599
申请日：1997-08-26
Applicant: BASF AG
Inventor： WEISS ROBERT , KRAUSS DIETER , KELLER DIETER , PIPPER GUNTER , HARDER WOLFGANG , LUDWIG ALFONS , MOHRSCHLADT RALF
Abstract: The present invention relates to a process for preparing a polyamide by reacting at least one aminonitrile with water wherein the preparation process has the following steps: /1/ at least one aminonitrile is reacted with water at a temperature ranging from 100 to 360 degC and pressure in the range of 4 to 30 x 10e6 Pa, yielding a reaction mixture; /2/ the reaction mixture is further reacted at a temperature from 150 to 400 degC and pressure lower than the pressure in step 1. The temperature and pressure are selected to yield a first gaseous phase and a first liquid or solid phase or a mixture of a first solid and a first liquid phase. The first gaseous phase is separated from the first liquid or solid phase or the mixture of a first liquid and a first solid phase is separated; and /3/ the first liquid or solid phase or the mixture of a first liquid and first solid phase is mixed with a water-containing gaseous or liquid phase at a temperature from 150 to 360 degC and pressure from 0.1 do 30 x 10e6 Pa, yielding a product mixture. Also disclosed are other embodiments of this process and the thus produced polyamides.
-
公开(公告)号：BR0010907A
公开(公告)日：2002-03-05
申请号：BR0010907
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.
-
公开(公告)号：BG104649A
公开(公告)日：2001-05-31
申请号：BG10464900
申请日：2000-07-31
Applicant: BASF AG
Inventor： MOHRSCHLADT RALF , KRAUSS DIETER , HILDEBRANDT VOLKER
Abstract: The invention relates to a continuous method for producing a polyamide by reacting at least one aminonitrile with water, comprising of the following steps: (1) Reaction of at least one aminonitrile with water in molar ratio from 1:1 to 1:10 at a temperature of between 90 and 400 degrees C and a pressure of between 0.1 and 15 x 106 Pa in a tubular flow reactor containing packing material of a Bronsted acid catalyst selected from beta zeolite, sheet silicate or titanium dioxide packing materials, as well as metallic packing materials, which yields a reaction mixture; (2) further reaction of the reaction mixture at a temperature or between 150 and 400 degrees C and a pressure which is lower than the pressure in step 1, where the temperature and the pressure are selected such that a first gaseous phase and a first liquid or a first solid phase or a mixture of a first solid and a first liquid phase is obtained, and the first gaseous phase is separated from the first liquid or first solid phase or the mixture of the first liquid and first solid phase; and (3) addition of the first liquid or first solid phase or the mixture of first liquid and first solid phase to a gaseous or liquid phase containing water, at a temperature of between 150 and 370 degrees C and a pressure of between 0.1 to 30 x 106 Pa, resulting in a product mixture. 9 claims, 1 figure
-
公开(公告)号：CO4870784A1
公开(公告)日：1999-12-27
申请号：CO97050221
申请日：1997-08-29
Applicant: BASF AG
Inventor： WEISS ROBERT , KRAUSS DIETER , KELLER DIETER , GUNTER PIPPER , HARDER WOLFGANG , LUDWIG ALFONS , MOHRSCHLADT RALF
Abstract: Un proceso para preparar una poliamida por reacción de al menosun aminonitrilo con agua que comprende las siguientes etapas: (1) hacer reaccionar al menos un aminonitrilo con agua a una temperatura entre 100 a 360°C y una presión entre 0.1 a 35 x 106 Pa para obtener una mezcla de reacción, (2) reaccionar además la mezcla de reacción a una temperatura de 150 a 400°C y una presión que es menor ala presión en el paso 1, la temperatura y la presión son seleccionados de tal forma que se obtiene una primera fase de gas y una primera fase líquida o una primera fase sólida o una mezcla de primer fase sólida y primer fase líquida, y separando la primera fase de gas de la primer fase líquida o la primer fase sólida o de la mezcla de la primer fase líquida y primer fase sólida, y (3) mezclar la primer fase líquida o la primer fase sólida o la mezcla de primer fase líquida y primera fase sólida con una fase gaseosa o base líquida que comprende agua a una temperatura entre 150 a 360°C y una presión entre 0.1 a 30 X 106 Pa para obtener un producto de mezcla.
-
-
-
-
-
-
-
-
-
Search Results
37
records
(took 0.022 seconds)
