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    METHOD FOR CONTROLLING THE REACTOR ADMISSION TEMPERATURE DURING THE PRODUCTION OF METHYLAMINE
    1.
    发明申请
    METHOD FOR CONTROLLING THE REACTOR ADMISSION TEMPERATURE DURING THE PRODUCTION OF METHYLAMINE 审中-公开
    甲基丙烯酸生产中控制反应器温度的方法

    公开(公告)号：WO2005028416A2

    公开(公告)日：2005-03-31

    申请号：PCT/EP2004010765

    申请日：2004-09-24

    Applicant: BASF AG ,  REUTEMANN WERNER ,  WAMBSGANSS ROLF ,  POPLOW FRANK ,  WEBER THEODOR ,  ROSS KARL-HEINZ ,  JULIUS MANFRED

    Inventor： REUTEMANN WERNER ,  WAMBSGANSS ROLF ,  POPLOW FRANK ,  WEBER THEODOR ,  ROSS KARL-HEINZ ,  JULIUS MANFRED

    IPC: C07C209/16 ,  C07C211/04 ,  C07C209/00

    CPC classification number: C07C209/16 ,  C07C211/04

    Abstract: The invention relates to a method for the production of metylamines by means of gas phase reaction from methanol and ammonia as educts in the presence of a heterogeneous catalyst at a pressure in the region of 15 - 30 bars. Said educts are vaporised in one or several heat exchangers (1, 2, 3) in order to overheat an educt gas flow and are subsequently guided to a reactor (4). The educts can be mixed in the inlets of one of the heat exchangers (1, 2, 3) or at one remaining position in a heat exchanger (1, 2, 3). A product gas flow containing monomethylamine, dimethylamine and trimethylamine, in addition to reaction auxiliary products, is removed from the reactor (4). In order to regulate the reactor admission temperature of the educts to a temperature in the region of 360 DEG C - 370 DEG C, the educt gas flow or the product gas flow is guided partially or completely through an adjustable valve (5) enabling the pressure and the condensation temperature to be varied.

    Abstract translation: 本发明涉及一种用于在15〜30巴范围内的制备Metylaminen的由甲醇和氨作为原料在非均相催化剂的存在下的气相反应在压力下进行。 起始材料在一个或多个热交换器（1,2，3）蒸发至过热的进料气流，然后提供一个反应器（4），其中所述进料在反应物的混合到热交换器中的一个（1，2，3），或 热交换器（1,2,3）中的任何位置都可以发生。 从反应器（4）中取出一甲胺，二甲胺和三甲胺以及含产物气流的反应副产物。 为了控制反应物的反应器入口温度的温度在360℃至370℃，进料气流或产品气流的压力的变化，从而冷凝温度通过可调节的阀（5）的一部分或全部通过。

    PROCEDIMIENTO PARA EVITAR LA CORROSION.
    2.
    发明专利
    PROCEDIMIENTO PARA EVITAR LA CORROSION. 未知

    公开(公告)号：ES2287766T3

    公开(公告)日：2007-12-16

    申请号：ES04765603

    申请日：2004-09-24

    Applicant: BASF AG

    Inventor： REUTEMANN WERNER ,  WEBER THEODOR ,  ROSS KARL-HEINZ ,  JULIUS MANFRED

    IPC: C07C209/86 ,  C07C209/16 ,  C07C209/90 ,  C07C211/04

    Abstract: Procedimiento para evitar la corrosión en la separación de metilaminas a partir de una corriente de productos (10) producida en la obtención de metilaminas mediante reacción en fase gaseosa de metanol y amoniaco, que contiene monometilamina, dimetilamina, trimetilamina, amoniaco y metanol como componentes, separándose amoniaco (11) mediante destilación pura en una primera columna (1), alimentándose a una segunda columna (2) los componentes restantes de la corriente de productos producidos como cola (12), separándose en la segunda columna (2) trimetilamina (14) mediante una destilación por extracción bajo alimentación de agua, alimentándose a una tercera columna (3) los demás componentes de la corriente de productos de una tercera columna (3), que se forman como cola (15) de la segunda columna (2), separándose en la tercera columna (3) monometilamina y dimetilamina, y separándose la monometilamina y la dimetilamina en una cuarta columna (4) mediante destilación, caracterizado porque en la cola (15) o en la parte de extracción de la segunda columna (2), o a la alimentación (17) de la tercera columna (3) se añade hidróxido alcalino.

    7.
    发明专利
    未知

    公开(公告)号：BRPI0414626A

    公开(公告)日：2006-11-07

    申请号：BRPI0414626

    申请日：2004-09-24

    Applicant: BASF AG

    Inventor： REUTEMANN WERNER ,  WEBER THEODOR ,  ROSS KARL-HEINZ ,  JULIUS MANFRED

    IPC: C07C209/86 ,  C07C211/04 ,  C07C209/90 ,  C07C209/16

    Abstract: The invention relates to a method of avoiding corrosion in the separation of methylamine from a product stream ( 10 ) which is obtained in the preparation of methylamines by gas-phase reaction of methanol and ammonia and includes monomethylamine, dimethylamine, trimethylamine, ammonia and methanol as components, where ammonia is separated off by pure distillation in a first column ( 1 ), the remaining components of the product stream obtained as bottoms ( 12 ) are fed to a second column ( 2 ). Trimethylamine ( 14 ) is separated off in the second column ( 2 ) by extractive distillation with introduction of water. The further components of the product stream obtained as bottoms ( 15 ) from the second column ( 2 ) are fed to a third column ( 3 ), in which monomethylamine and dimethylamine are separated off at the top. The monomethylamine and dimethylamine are separated by distillation in a fourth column ( 4 ). To avoid corrosion alkali metal hydroxide is added to the second or third column ( 3 ).

    8.
    发明专利
    未知

    公开(公告)号：DE10344282A1

    公开(公告)日：2005-04-21

    申请号：DE10344282

    申请日：2003-09-24

    Applicant: BASF AG

    Inventor： REUTEMANN WERNER ,  WEBER THEODOR ,  ROS KARL-HEINZ ,  JULIUS MANFRED

    IPC: C07C209/86 ,  C07C211/04

    Abstract: The invention relates to a method of avoiding corrosion in the separation of methylamine from a product stream ( 10 ) which is obtained in the preparation of methylamines by gas-phase reaction of methanol and ammonia and includes monomethylamine, dimethylamine, trimethylamine, ammonia and methanol as components, where ammonia is separated off by pure distillation in a first column ( 1 ), the remaining components of the product stream obtained as bottoms ( 12 ) are fed to a second column ( 2 ). Trimethylamine ( 14 ) is separated off in the second column ( 2 ) by extractive distillation with introduction of water. The further components of the product stream obtained as bottoms ( 15 ) from the second column ( 2 ) are fed to a third column ( 3 ), in which monomethylamine and dimethylamine are separated off at the top. The monomethylamine and dimethylamine are separated by distillation in a fourth column ( 4 ). To avoid corrosion alkali metal hydroxide is added to the second or third column ( 3 ).

    10.
    发明专利
    未知

    公开(公告)号：AT364591T

    公开(公告)日：2007-07-15

    申请号：AT04765603

    申请日：2004-09-24

    Applicant: BASF AG

    Inventor： REUTEMANN WERNER ,  WEBER THEODOR ,  ROSS KARL-HEINZ ,  JULIUS MANFRED

    IPC: C07C209/86 ,  C07C209/16 ,  C07C209/90 ,  C07C211/04

    Abstract: The invention relates to a method of avoiding corrosion in the separation of methylamine from a product stream ( 10 ) which is obtained in the preparation of methylamines by gas-phase reaction of methanol and ammonia and includes monomethylamine, dimethylamine, trimethylamine, ammonia and methanol as components, where ammonia is separated off by pure distillation in a first column ( 1 ), the remaining components of the product stream obtained as bottoms ( 12 ) are fed to a second column ( 2 ). Trimethylamine ( 14 ) is separated off in the second column ( 2 ) by extractive distillation with introduction of water. The further components of the product stream obtained as bottoms ( 15 ) from the second column ( 2 ) are fed to a third column ( 3 ), in which monomethylamine and dimethylamine are separated off at the top. The monomethylamine and dimethylamine are separated by distillation in a fourth column ( 4 ). To avoid corrosion alkali metal hydroxide is added to the second or third column ( 3 ).

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