21.
    发明专利
    未知

    公开(公告)号:DE69319111D1

    公开(公告)日:1998-07-16

    申请号:DE69319111

    申请日:1993-08-05

    Abstract: A method of producing stabilized crude acetonitrile (i.e. acetonitrile which has been treated to substantially eliminate polymerization of the acetonitrile upon vaporization) which comprises mixing crude acetonitrile, a strong base and aldehyde together, heating to the reflux temperature of the mixture to stabilize the crude acetonitrile and recovering the stabilize acetonitrile. This stabilized acetonitrile is utilized to manufacture hydrogen cyanide.

    22.
    发明专利
    未知

    公开(公告)号:DE69107164T2

    公开(公告)日:1995-05-24

    申请号:DE69107164

    申请日:1991-03-14

    Abstract: Disclosed is a process for making ethylamines by the hydrogenation in a reaction zone of acetonitrile contained in a basic aqueous solution which also contains HCN, which comprises continuously passing hydrogen gas in contact with a flowing steam containing acetonitrile, water and HCN, which stream is in contact with a solid hydrogenation catalyst, wherein the hydrogen contact time is in the range from 0.5 seconds to 20 minutes and the molar ratio of H2 to acetonitrile charged to said reaction zone is in the range 2-200:1.

    23.
    发明专利
    未知

    公开(公告)号:DE69107164D1

    公开(公告)日:1995-03-16

    申请号:DE69107164

    申请日:1991-03-14

    Abstract: Disclosed is a process for making ethylamines by the hydrogenation in a reaction zone of acetonitrile contained in a basic aqueous solution which also contains HCN, which comprises continuously passing hydrogen gas in contact with a flowing steam containing acetonitrile, water and HCN, which stream is in contact with a solid hydrogenation catalyst, wherein the hydrogen contact time is in the range from 0.5 seconds to 20 minutes and the molar ratio of H2 to acetonitrile charged to said reaction zone is in the range 2-200:1.

    28.
    发明专利
    未知

    公开(公告)号:DE69319111T2

    公开(公告)日:1998-10-08

    申请号:DE69319111

    申请日:1993-08-05

    Abstract: A method of producing stabilized crude acetonitrile (i.e. acetonitrile which has been treated to substantially eliminate polymerization of the acetonitrile upon vaporization) which comprises mixing crude acetonitrile, a strong base and aldehyde together, heating to the reflux temperature of the mixture to stabilize the crude acetonitrile and recovering the stabilize acetonitrile. This stabilized acetonitrile is utilized to manufacture hydrogen cyanide.

    30.
    发明专利
    未知

    公开(公告)号:ES2067855T3

    公开(公告)日:1995-04-01

    申请号:ES91302208

    申请日:1991-03-14

    Abstract: Disclosed is a process for making ethylamines by the hydrogenation in a reaction zone of acetonitrile contained in a basic aqueous solution which also contains HCN, which comprises continuously passing hydrogen gas in contact with a flowing steam containing acetonitrile, water and HCN, which stream is in contact with a solid hydrogenation catalyst, wherein the hydrogen contact time is in the range from 0.5 seconds to 20 minutes and the molar ratio of H2 to acetonitrile charged to said reaction zone is in the range 2-200:1.

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