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

    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。

    3.
    发明专利
    未知

    公开(公告)号:BRPI0413792A

    公开(公告)日:2006-11-07

    申请号:BRPI0413792

    申请日:2004-09-24

    Applicant: BASF AG

    Abstract: The invention relates to a process for preparing methylamines by gas-phase reaction of methanol and ammonia as starting materials at a pressure in the range from 15 to 30 bar in the presence of heterogeneous catalyst. The starting materials are vaporized in one or more heat exchangers (1, 2, 3), superheated to produce a feed gas stream and subsequently fed into a reactor (4), with the mixing of the starting materials being able to be carried out in the feed stream to one of the heat exchangers (1, 2, 3) or at any desired position in a heat exchanger (1, 2, 3). A product gas stream comprising monomethylamine, dimethylamine and trimethylamine and also reaction by-products is taken off from the reactor (4). To control the reactor inlet temperature of the starting materials to a temperature in the range from 360° C. to 370° C., all or some of the feed gas stream or the product gas stream is passed through an adjustable valve (5) in order to vary the pressure and thus the condensation temperature.

    6.
    发明专利
    未知

    公开(公告)号:AT384037T

    公开(公告)日:2008-02-15

    申请号:AT04764998

    申请日:2004-09-09

    Applicant: BASF AG

    Abstract: A process for preparing xylylenediamine by continuously hydrogenating liquid phthalonitrile over a heterogeneous catalyst in the presence of liquid ammonia in a reactor, which comprises mixing a stream of a phthalonitrile melt in liquid form by means of a mixer unit with a stream of liquid ammonia and conducting the liquid mixture into the hydrogenation reactor.

    9.
    发明专利
    未知

    公开(公告)号:DE502004005974D1

    公开(公告)日:2008-03-06

    申请号:DE502004005974

    申请日:2004-09-09

    Applicant: BASF AG

    Abstract: A process for preparing xylylenediamine by continuously hydrogenating liquid phthalonitrile over a heterogeneous catalyst in the presence of liquid ammonia in a reactor, which comprises mixing a stream of a phthalonitrile melt in liquid form by means of a mixer unit with a stream of liquid ammonia and conducting the liquid mixture into the hydrogenation reactor.

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