CARBOHYDRATE ROUTE TO PARA-XYLENE AND TEREPHTHALIC ACID
    42.
    发明申请
    CARBOHYDRATE ROUTE TO PARA-XYLENE AND TEREPHTHALIC ACID 有权
    碳水化合物路线到对二甲苯和十二烷酸

    公开(公告)号:US20100331568A1

    公开(公告)日:2010-12-30

    申请号:US12492182

    申请日:2009-06-26

    IPC分类号: C07C51/255 C07C15/08

    摘要: Catalytic processes for the conversion of 2,5-dimethyl furan (DMF) to para-xylene are described. Para-xylene is a key product that is currently obtained commercially from petroleum sources. However, it has now been determined that the cycloaddition of ethylene to DMF provides an alternative route to para-xylene. Advantageously, the DMF starting material for the processes may be synthesized from carbohydrates (e.g., glucose or fructose), thereby providing a pathway that relies at least partly, if not completely, on renewable feedstocks.

    摘要翻译: 描述了将2,5-二甲基呋喃(DMF)转化成对二甲苯的催化方法。 对二甲苯是目前从石油来源商业获得的关键产品。 然而,现在已经确定乙烯到DMF的环加成提供了对二甲苯的替代途径。 有利地,用于该方法的DMF起始原料可以由碳水化合物(例如葡萄糖或果糖)合成,从而提供至少部分地(如果不是完全依赖于可再生原料)的途径。

    IMMOBILIZED CYCLIC IMIDE CATALYST AND PROCESS FOR OXIDATION OF ORGANIC COMPOUNDS WITH THE SAME
    43.
    发明申请
    IMMOBILIZED CYCLIC IMIDE CATALYST AND PROCESS FOR OXIDATION OF ORGANIC COMPOUNDS WITH THE SAME 审中-公开
    固定化的环化催化剂及其有机化合物氧化方法

    公开(公告)号:US20100317869A1

    公开(公告)日:2010-12-16

    申请号:US12526010

    申请日:2008-02-28

    IPC分类号: C07F7/10 C07C45/38 C07C51/235

    摘要: To provide a solid catalyst containing a cyclic imide skeleton which is easily available and easily separable from reaction products and which is easily recovered and regenerated, and free from reaction inhibitory factors; and a process for oxidation of organic compounds with the solid catalyst.An immobilized cyclic imide catalyst having a structure represented by following Formula (1), wherein X is oxygen or an —OR group (wherein R is hydrogen atom or a hydroxyl-protecting group); n is 0 or 1; Z1 is a five- or six-membered cyclic imide skeleton to which an aromatic or nonaromatic ring Z2 may be adjacent; elliptically shaped moiety S is an inorganic support; A1 is a group linking silicon atom with the cyclic imide skeleton Z1 or with the ring Z2 and is either a divalent hydrocarbon group or a group composed of a divalent hydrocarbon group and an amide bond (—NHCO—); and the cyclic imide skeleton Z1 and the ring Z2 may each be substituted.

    摘要翻译: 提供含有环状酰亚胺骨架的固体催化剂,其易于获得并且易于与反应产物分离并易于回收和再生,并且没有反应抑制因子; 以及用固体催化剂氧化有机化合物的方法。 具有下式(1)表示的结构的固定化的环状酰亚胺催化剂,其中X为氧或-OR基(其中R为氢原子或羟基保护基); n为0或1; Z1是芳族或非芳族环Z2可以相邻的五元或六元环酰亚胺骨架; 椭圆形部分S是无机载体; A1是将硅原子与环状酰亚胺骨架Z1或环Z2连接的基团,为二价烃基或由二价烃基和酰胺键(-NHCO-)构成的基团。 并且环状酰亚胺骨架Z1和环Z2可各自被取代。

    Carboxylic acid production process
    44.
    发明授权
    Carboxylic acid production process 有权
    羧酸生产工艺

    公开(公告)号:US07847121B2

    公开(公告)日:2010-12-07

    申请号:US11705307

    申请日:2007-02-12

    IPC分类号: C07C51/42

    摘要: Disclosed are processes and apparatus for producing a carboxylic acid. The processes employ a concentration section disposed before and/or after a product isolation section, which allows for oxidation byproducts produced in the process to exit the product isolation section with the isolated carboxylic acid product and/or to be combined with the isolated carboxylic acid product downstream of the product isolation section at a rate of at least about 15 percent of the net make rate of the oxidation byproducts in the production process.

    摘要翻译: 公开了用于生产羧酸的方法和设备。 该方法使用在产物分离部分之前和/或之后设置的浓度部分,其允许在该过程中产生的氧化副产物与分离的羧酸产物一起离开产物分离部分和/或与分离的羧酸产物组合 在产品隔离部分的下游以至少约15%的生产过程中氧化副产物的净成本率。

    Dicarboxylic Acid Production with Enhanced Energy Recovery
    48.
    发明申请
    Dicarboxylic Acid Production with Enhanced Energy Recovery 有权
    增加能量回收的二羧酸生产

    公开(公告)号:US20100113826A1

    公开(公告)日:2010-05-06

    申请号:US12556107

    申请日:2009-09-09

    IPC分类号: C07C51/255

    摘要: The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant. Optionally, PET off-gas containing the water of PET formation is treated in a shared thermal oxidative destruction unit, effectively eliminating normal flow of liquid wastewater effluent from a combined pX-to-TPA-to-PET plant.

    摘要翻译: 本发明提供了来自二甲苯氧化反应的废气的改进的能量含量和轴功率回收,同时使废水处理成本最小化。 即使使用优选的相对低的氧化温度,也可以使用除了驱动主空气压缩机所需的废气以外的更多的轴功率。 同时,大量来自二氧化碳氧化的副产物水的废水保持蒸气形式,并在自持(自燃)气相热氧化破坏装置中与废气污染物一起处理。 任选地,废气从包括初级和/或二级氧化反应器并形成TPA和/或IPA的多个二甲苯氧化反应器组合。 任选地,空气压缩机冷凝物和苛性碱洗涤器排污用于TPA方法或作为效用水,有效地消除了来自TPA设备的液体废水流出物的正常流动。 任选地,在共同的热氧化破坏单元中处理含有PET形成水的PET废气,有效地消除了从组合的pX到TPA到PET植物的液体废水流出物的正常流动。