1.
    发明专利
    未知

    公开(公告)号:BR9304228A

    公开(公告)日:1994-06-07

    申请号:BR9304228

    申请日:1993-10-13

    Abstract: An improved process for substantially eliminating, preferably completely eliminating of nitride formation on feed conduits for fluid bed catalyst reactors used in the manufacture of unsaturated nitriles from corresponding olefins, NH3 and oxygen comprising maintaining the temperature of the ammonia inside the conduit below its dissociation temperature and/or maintaining the temperature of the inside surface of the conduit below the temperature at which any mono-atomic nitrogen can react with the conduit to form a nitride.

    2.
    发明专利
    未知

    公开(公告)号:AT149093T

    公开(公告)日:1997-03-15

    申请号:AT93307686

    申请日:1993-09-28

    Abstract: An improved process for substantially eliminating, preferably completely eliminating of nitride formation on feed conduits for fluid bed catalyst reactors used in the manufacture of unsaturated nitriles from corresponding olefins, NH3 and oxygen comprising maintaining the temperature of the ammonia inside the conduit below its dissociation temperature and/or maintaining the temperature of the inside surface of the conduit below the temperature at which any mono-atomic nitrogen can react with the conduit to form a nitride.

    3.
    发明专利
    未知

    公开(公告)号:ES2097991T3

    公开(公告)日:1997-04-16

    申请号:ES93307686

    申请日:1993-09-28

    Abstract: An improved process for substantially eliminating, preferably completely eliminating of nitride formation on feed conduits for fluid bed catalyst reactors used in the manufacture of unsaturated nitriles from corresponding olefins, NH3 and oxygen comprising maintaining the temperature of the ammonia inside the conduit below its dissociation temperature and/or maintaining the temperature of the inside surface of the conduit below the temperature at which any mono-atomic nitrogen can react with the conduit to form a nitride.

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