HYDROGEN CYANIDE MANUFACTURING PROCESS WITH SECOND WASTE HEAT BOILER
    2.
    发明申请
    HYDROGEN CYANIDE MANUFACTURING PROCESS WITH SECOND WASTE HEAT BOILER 审中-公开
    具有第二废热锅炉的氢化氰化物制造工艺

    公开(公告)号:US20160167975A1

    公开(公告)日:2016-06-16

    申请号:US14903658

    申请日:2014-07-10

    CPC classification number: C01C3/0295 C01C1/12 C01C3/04 F22B1/16 Y02P20/129

    Abstract: Described is a method for the production and recovery of hydrogen cyanide, which includes removing ammonia from a crude hydrogen cyanide stream. The method integrates heat removed from a crude hydrogen cyanide stream into other areas of the hydrogen cyanide recovery process. The crude hydrogen cyanide stream may be passed through a first waste heat boiler and a second waste heat boiler prior to being fed to an ammonia absorber, which produces a hydrogen cyanide rich stream. Hydrogen cyanide is recovered from the hydrogen cyanide rich stream. Equipment fouling with HCN polymer is reduced.

    Abstract translation: 描述了生产和回收氰化氢的方法,其包括从粗氰化氢流中除去氨。 该方法将从粗制氰化氢流中除去的热量与氰化氢回收过程的其它区域相结合。 粗氰化氢料流可以在进料到氨吸收剂之前通过第一废热锅炉和第二废热锅炉,其产生富含氰化氢的料流。 从富氰化氢流中回收氰化氢。 HCN聚合物污垢减少。

    OPERATIONAL CONTROLS FOR INERT GAS BLANKETING FOR ANDRUSSOW PROCESS
    4.
    发明申请
    OPERATIONAL CONTROLS FOR INERT GAS BLANKETING FOR ANDRUSSOW PROCESS 审中-公开
    用于安德鲁斯过程的燃气封闭的操作控制

    公开(公告)号:US20160194211A1

    公开(公告)日:2016-07-07

    申请号:US14741762

    申请日:2013-12-12

    CPC classification number: C01C3/0212 C01C3/022

    Abstract: The present invention relates to a system and a process for producing hydrogen cyanide and more particularly, to a process for controlling operational stability of the system and process by blanketing the system with inert gas. More particularly, the present invention relates to the flushing of the system with an inert gas when a crude hydrogen cyanide product exceeds a threshold of oxygen, such as greater than 0.4 vol. % oxygen.

    Abstract translation: 本发明涉及一种用于生产氰化氢的系统和方法,更具体地说,涉及通过用惰性气体覆盖该系统来控制该系统和工艺的操作稳定性的方法。 更具体地说,本发明涉及当粗制氰化氢产物超过氧气阈值(例如大于0.4体积%)时用惰性气体冲洗该系统。 %氧气。

    IMPROVED PROCESS FOR MANUFACTURE OF TETRAHYDROFURAN
    5.
    发明申请
    IMPROVED PROCESS FOR MANUFACTURE OF TETRAHYDROFURAN 审中-公开
    改进四氯呋喃制备方法

    公开(公告)号:US20160214952A1

    公开(公告)日:2016-07-28

    申请号:US14917362

    申请日:2014-09-09

    CPC classification number: C07D307/08

    Abstract: The disclosed process relates to an improved process for manufacturing THF from a reaction mixture comprising BDO in the presence of an acid catalyst in a reaction vessel comprising a distillation reaction zone, wherein the acid catalyst is suspended in a vapor-rich region in the distillation reaction zone.

    Abstract translation: 所公开的方法涉及在包含蒸馏反应区的反应容器中的酸催化剂存在下由包含BDO的反应混合物制备THF的改进方法,其中酸催化剂悬浮在蒸馏反应器中的富蒸气区域 区。

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