利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

109 条记录 (耗时 0.019 秒)

    VERFAHREN ZUR HERSTELLUNG VON VINYLACETAT UNTER NUTZUNG DER DABEI FREIWERDENDEN REAKTIONSWÄRME
    9.
    发明授权
    VERFAHREN ZUR HERSTELLUNG VON VINYLACETAT UNTER NUTZUNG DER DABEI FREIWERDENDEN REAKTIONSWÄRME 无效
    用于生产醋酸乙烯酯那里使用反应热的

    公开(公告)号：EP1948585B1

    公开(公告)日：2009-03-18

    申请号：EP06807659.5

    申请日：2006-10-30

    申请人： Wacker Chemie AG

    发明人： MICHL, Harald

    IPC分类号： C07C67/05 ,  C07C69/15

    CPC分类号： C07C67/055 ,  C07C69/01 ,  C07C69/15

    摘要： The invention relates to a process for preparing vinyl acetate by means of a) heterogeneously catalyzed, continuous gas-phase reaction of ethylene, acetic acid and oxygen at a pressure of from 1 to 30 bar and at a temperature of from 130°C to 200°C, where the process heat is dissipated by means of heat exchange to water whose temperature is from 120°C to 185°C at a pressure of from 1 to 10 bar, b) separation of the product gas stream comprising in essence ethylene, vinyl acetate, acetic acid, water, carbon dioxide and further inert gases, and c) entire or partial return of ethylene to the gas-circuit process, which comprises compressing, to the extent of a difference in pressure of at least 0.5 bar, all of some of the steam formed by means of heat exchange during the gas-phase reaction with a temperature of from 120°C to 185°C at a pressure of from 1 to 10 bar, and making further use thereof.

    INTEGRATED PROCESS FOR ACETIC ACID AND METHANOL
    10.
    发明公开
    INTEGRATED PROCESS FOR ACETIC ACID AND METHANOL 审中-公开
    集成方法醋酸和甲醇

    公开(公告)号：EP1708982A1

    公开(公告)日：2006-10-11

    申请号：EP04738452.4

    申请日：2004-01-22

    申请人： Acetex (Cyprus) Limited

    发明人： THIEBAUT, Daniel, Marcel

    IPC分类号： C07C29/151 ,  C07C51/12 ,  C07C53/08 ,  C07C67/05 ,  C07C69/15

    CPC分类号： C07C29/1518 ,  C07C51/12 ,  C07C67/05 ,  Y02P20/125 ,  C07C53/08 ,  C07C69/01 ,  C07C69/15 ,  C07C31/04

    摘要： An integrated process for making methanol, acetic acid, and a product from an associated process is disclosed. Syngas (120) is produced by combined steam reforming (109) and autothermal reforming (118) of natural gas (102) where a portion (112) of the natural gas bypasses the steam reformer (109) and is blended with the steam reformer effluent for supply to the autothermal reformer (ATR) (118) with C02 recycle (110). A portion of the syngas is fed to C02 removal (122) to obtain the recycle C02 and cold box (130) to obtain a hydrogen stream (131) and a CO stream (135). The remaining syngas, hydrogen stream (131) and C02 from an associated process are fed to methanol synthesis (140), which produces methanol and a purge stream (124) supplied to the C02 removal unit. The methanol is supplied to an acetic acid unit (13)6 with the CO (135) to make acetic acid, which in turn is supplied to a VAM synthesis unit (148). Oxygen for both the ATR and VAM synthesis can be supplied by a common air separation unit (116), and utilities such as steam generation can further integrate the process.