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    METHOD FOR REDUCING EDA IN ACETIC ANHYDRIDE PRODUCTION
    1.
    发明公开
    METHOD FOR REDUCING EDA IN ACETIC ANHYDRIDE PRODUCTION 有权
    在乙酸酐生产中减少EDA的方法

    公开(公告)号：EP1360165A1

    公开(公告)日：2003-11-12

    申请号：EP01909206.3

    申请日：2001-02-13

    申请人： EASTMAN CHEMICAL COMPANY

    发明人： BAYS, Joseph, Nathaniel ,  ZOELLER, Joseph, Robert ,  CUSHMAN, Michael, Roy ,  TENNANT, Brent, Alan

    IPC分类号： C07C51/573 ,  C07C51/56 ,  C07C53/12

    CPC分类号： C07C51/56 ,  C07C51/573 ,  Y02P20/582 ,  C07C53/12

    摘要： In a liquid phase carbonylation process for the production of acetic anhydride by reacting a feed stream which includes methyl acetate, methanol and carbon monoxide using a Group VIII metal-containing catalyst, and preferably a rhodium containign material, a liquid reaction product is continuoulsy withdrawn from the carbonylation zone and fed to an evaporaton/separation zone for separating volatile constituents of the reaction from the non-volatile constituents whihc, includes a portion of the Group VIII metal catalyst from the carbonylation reactor. The Group VIII metal catalyst is contacted with a gas stream which includes hydrogen for a period of from about 0.001 seconds to about 200 seconds as it is being returned to the carbonylation zone.

    摘要翻译： 在通过使用包含VIII族金属的催化剂，优选含铑材料使包含乙酸甲酯，甲醇和一氧化碳的进料流反应来生产乙酸酐的液相羰基化方法中，液体反应产物可连续地从 羰基化区并进料到蒸发/分离区，用于从非挥发性组分中分离反应的挥发性组分，其中包括来自羰基化反应器的一部分第VIII族金属催化剂。 当VIII族金属催化剂返回羰基化区时，该催化剂与包含氢的气流接触约0.001秒至约200秒的时间。

    PROCESSING GASEOUS STREAMS RESULTING FROM CARBONYLATION PROCESS
    5.
    发明公开
    PROCESSING GASEOUS STREAMS RESULTING FROM CARBONYLATION PROCESS 有权
    气的处理流程从羰基

    公开(公告)号：EP2637767A1

    公开(公告)日：2013-09-18

    申请号：EP11788270.4

    申请日：2011-11-08

    申请人： Eastman Chemical Company

    发明人： LANE, Donald, Wayne ,  CONAWAY, Randall, Lee ,  PARTIN, Lee, Reynolds ,  BEWLEY, Jerry, Lee ,  JONES, William, Crawford ,  BAYS, Joseph, Nathaniel

    IPC分类号： B01D53/14 ,  B01D53/86 ,  C07C51/48 ,  C07C51/573

    CPC分类号： B01D53/1418 ,  B01D53/1406 ,  B01D53/1493 ,  B01D53/8659 ,  B01D2257/202 ,  C07C51/44 ,  C07C53/08

    摘要： The invention provides methods for recovering iodine-containing compounds from a gaseous stream that contain at least one iodine-containing compound. The method includes: (a) contacting the gaseous stream with liquid methyl acetate in a first scrubbing zone to produce a methyl acetate- scrubbed gaseous stream and a first used scrubbant, the first used scrubbant containing methyl acetate, acetic acid, and the iodide compound; and (b) contacting at least some of the methyl acetate-scrubbed gaseous stream with liquid acetic acid in a second scrubbing zone to produce an acetic acid- scrubbed gaseous stream and a second used scrubbant, the second used scrubbant containing methyl acetate and acetic acid. The method may further include a third scrubber step that includes contacting at least some of the acetic acid-scrubbed gaseous stream with water in a third scrubbing zone to produce a water-scrubbed gaseous stream and a third used scrubbant, the third used scrubbant containing water and acetic acid. The gaseous stream may also contain other components, for example hydrogen, carbon monoxide, methyl acetate, acetic acid, acetic anhydride, nitrogen, ethylidene diacetate, methane, argon or a combination of two or more of the foregoing. Optionally, at least some of the third used scrubbant with reactants may be combined in a chemical process that uses mixtures of acetic acid and water.

    METHOD FOR REDUCING EDA IN ACETIC ANHYDRIDE PRODUCTION
    6.
    发明授权
    METHOD FOR REDUCING EDA IN ACETIC ANHYDRIDE PRODUCTION 有权
    程序EDA在ESSIGSÄUREANHYDRIDPRODUKTION减少

    公开(公告)号：EP1360165B1

    公开(公告)日：2009-12-30

    申请号：EP01909206.3

    申请日：2001-02-13

    申请人： EASTMAN CHEMICAL COMPANY

    发明人： BAYS, Joseph, Nathaniel ,  ZOELLER, Joseph, Robert ,  CUSHMAN, Michael, Roy ,  TENNANT, Brent, Alan

    IPC分类号： C07C51/573 ,  C07C51/56 ,  C07C53/12

    CPC分类号： C07C51/56 ,  C07C51/573 ,  Y02P20/582 ,  C07C53/12

    摘要： In a liquid phase carbonylation process for the production of acetic anhydride by reacting a feed stream which includes methyl acetate, methanol and carbon monoxide using a Group VIII metal-containing catalyst, and preferably a rhodium containign material, a liquid reaction product is continuoulsy withdrawn from the carbonylation zone and fed to an evaporaton/separation zone for separating volatile constituents of the reaction from the non-volatile constituents whihc, includes a portion of the Group VIII metal catalyst from the carbonylation reactor. The Group VIII metal catalyst is contacted with a gas stream which includes hydrogen for a period of from about 0.001 seconds to about 200 seconds as it is being returned to the carbonylation zone.