PRODUCTION OF NITRILE COMPOUNDS
    51.
    发明申请
    PRODUCTION OF NITRILE COMPOUNDS 有权
    硝基化合物的生产

    公开(公告)号:US20110082310A1

    公开(公告)日:2011-04-07

    申请号:US12812891

    申请日:2009-01-12

    IPC分类号: C07C253/10

    摘要: Organic compounds containing at least one site of ethylenic unsaturation are catalytically hydrocyanated and the medium of hydrocyanation is separated into desired linear organic compounds containing at least one nitrile function, e.g., 3-pentenenitrile, and undesired nitrile by-products, e.g., methylglutaronitrile, and the undesired nitrile by-products are hydrodenitrogenated into ammonia and at least one hydrocarbon compound under an absolute hydrogen pressure ranging from 0.1 to 10 MPa at a temperature ranging from 200° to 500° C. and in the presence of a hydrodenitrogenation catalyst.

    摘要翻译: 含有至少一个烯属不饱和位点的有机化合物是催化氢氰化的,氢氰化介质被分离成含有至少一个腈官能团的所需线性有机化合物,例如3-戊烯腈和不需要的腈副产物,例如甲基戊二腈,和 在200至500℃的温度和在加氢脱氮催化剂存在下,在0.1至10MPa的绝对氢气压力下将不期望的腈副产物加氢脱氮至氨和至少一种烃化合物。

    Diamine purification method
    52.
    发明申请
    Diamine purification method 审中-公开
    二胺纯化方法

    公开(公告)号:US20060217549A1

    公开(公告)日:2006-09-28

    申请号:US10560761

    申请日:2004-06-25

    IPC分类号: C07D257/02

    CPC分类号: C07C209/84

    摘要: Process for the purification of diamines The present invention relates to a process for the purification of diamines obtained by hydrogenation of dinitriles. It relates more particularly to the purification of hexamethylenediamine obtained from the hydrogenation of adiponitrile. The process of the invention consists in treating a portion of the hexamethylenediamine stream withdrawn from the distillation column and in reinjecting this treated stream into the said column.

    摘要翻译: 二胺纯化方法本发明涉及一种通过二腈加氢获得的二胺的纯化方法。 更特别地涉及从己二腈的氢化得到的六亚甲基二胺的提纯。 本发明的方法在于处理从蒸馏塔中取出的一部分六亚甲基二胺流,并将该处理过的流再注入到所述塔中。

    Method for hydrogenating aromatic nitro compounds
    54.
    发明授权
    Method for hydrogenating aromatic nitro compounds 失效
    芳香族硝基化合物的氢化方法

    公开(公告)号:US6040481A

    公开(公告)日:2000-03-21

    申请号:US77637

    申请日:1998-11-12

    IPC分类号: C07C209/36 C07C209/00

    CPC分类号: C07C209/36

    摘要: A method for hydrogenating aromatic nitro compounds by reacting at least one aromatic nitro compound with hydrogen in two adiabatically operated fixed-bed catalytic reactors arranged in series, wherein one part of the reaction mixture from the first reactor is recirculated therein while the other part is fed into the second reactor.

    摘要翻译: PCT No.PCT / FR96 / 01893 Sec。 371日期:1998年11月12日 102(e)日期1998年11月12日PCT 1996年11月29日PCT公布。 出版物WO97 / 20804 日期:1997年6月12日一种通过在串联布置的两个绝热操作的固定床催化反应器中使至少一种芳族硝基化合物与氢反应来氢化芳族硝基化合物的方法,其中来自第一反应器的一部分反应混合物在其中再循环, 另一部分被送入第二反应器。