PRODUCTION OF AN AROMATIC DICARBOXYLIC ACID
    43.
    发明申请
    PRODUCTION OF AN AROMATIC DICARBOXYLIC ACID 审中-公开
    生产芳香二羧酸

    公开(公告)号:WO2016055643A1

    公开(公告)日:2016-04-14

    申请号:PCT/EP2015/073466

    申请日:2015-10-09

    Abstract: The present invention provides a process for the production of an aromatic dicarboxylic acid comprising the catalytic oxidation of a hydrocarbon precursor in an organic solvent, wherein said process comprises: (a) separating off-gas generated by said oxidation reaction into an organic solvent-rich liquid stream and a water-rich vapour stream, wherein the water-rich vapour stream comprises organic compounds and non-condensable gases, and wherein said separating is performed in a pressurised distillation stage comprising a first pressurised distillation column and a second pressurised distillation column, and (b) condensing said water-rich vapour stream exiting the pressurised distillation stage into a condensate stream and an overhead gas stream in a condensing stage, characterised in that a first water-rich vapour stream is withdrawn from said first pressurised distillation column and passed to said second pressurised distillation column and a first organic solvent-rich liquid stream is withdrawn from the first pressurised distillation column and returned to the oxidation reaction, wherein said process further comprises the step of monitoring the oxidation reaction by analysing the composition of said first water-rich vapour stream.

    Abstract translation: 本发明提供一种生产芳族二羧酸的方法,其包括在有机溶剂中催化氧化烃前体,其中所述方法包括:(a)将由所述氧化反应产生的废气分离成富有机溶剂 液体流和富水蒸气流,其中所述富水蒸汽流包含有机化合物和不可冷凝气体,并且其中所述分离在包括第一加压蒸馏塔和第二加压蒸馏塔的加压蒸馏阶段中进行, 和(b)将在所述加压蒸馏阶段出口的所述富水蒸气物流在冷凝阶段中冷凝成冷凝物流和塔顶气流,其特征在于,将第一富水蒸气流从所述第一加压蒸馏塔排出并通过 到所述第二加压蒸馏塔和富含第一有机溶剂的液体流i s从第一加压蒸馏塔取出并返回到氧化反应,其中所述方法还包括通过分析所述第一富水蒸气流的组成来监测氧化反应的步骤。

    PRODUCTION OF AN AROMATIC DICARBOXYLIC ACID
    44.
    发明申请
    PRODUCTION OF AN AROMATIC DICARBOXYLIC ACID 审中-公开
    生产芳香族二羧酸

    公开(公告)号:WO2016055456A2

    公开(公告)日:2016-04-14

    申请号:PCT/EP2015/073021

    申请日:2015-10-06

    CPC classification number: C07C51/265 C07C51/43 C07C51/487 C07C63/26

    Abstract: The present invention provides a method for raising steam in a process for the production of an aromatic dicarboxylic acid comprising the catalytic oxidation of a hydrocarbon precursor in an organic solvent, comprising the steps of: i) heating a crude aromatic dicarboxylic acid slurry to form a crude aromatic dicarboxylic acid solution; ii) transferring the crude aromatic dicarboxylic acid solution to a hydrogenation reactor; iii) transferring a purified aromatic dicarboxylic acid solution from the hydrogenation reactor to a series of one or more crystallisers; and iv) transferring heat from a crystalliser vent stream from the series of one or more crystallisers to a water stream in a steam raiser to generate steam. The present invention further provides an apparatus for carrying out the method, and a process for the production of an aromatic dicarboxylic acid incorporating the method.

    Abstract translation: 本发明提供了一种在生产芳族二羧酸的方法中用于升高蒸汽的方法,该方法包括在有机溶剂中催化氧化烃前体,该方法包括以下步骤:i)将 粗芳族二羧酸淤浆以形成粗芳族二羧酸溶液; ii)将粗芳族二羧酸溶液转移到氢化反应器中; iii)将纯化的芳族二羧酸溶液从氢化反应器转移到一系列一种或多种结晶器中; 和iv)将来自一系列一个或多个结晶器的结晶器排放流的热量传递给蒸汽提升器中的水流以产生蒸汽。 本发明进一步提供了用于实施该方法的设备和用于生产引入该方法的芳族二羧酸的方法。

    CONTINUOUS POLYAMIDATION PROCESS - I
    45.
    发明申请
    CONTINUOUS POLYAMIDATION PROCESS - I 审中-公开
    连续聚酰胺工艺 -

    公开(公告)号:WO2015075459A1

    公开(公告)日:2015-05-28

    申请号:PCT/GB2014/053439

    申请日:2014-11-20

    Abstract: A continuous process for the manufacture of a polyamide, the process comprising the steps of: (i) flowing a stream A comprising a molten dicarboxylic acid, or a molten dicarboxylic acid-rich mixture comprising a dicarboxylic acid and a diamine, through a first stage and at least one more reaction stage of a vertical multistage reactor, wherein the first stage is at the top of the reactor; (ii) counter-currently flowing a stream B comprising a diamine as either a vapour or a diamine-rich liquid through at least one of the stages below the first reaction stage of said vertical multistage reactor; (iii) accumulating a liquid phase material P comprising polyamide at and/or below the final stage of said reactor; wherein said reactor is equipped with internal features suitable for effecting contact between counter-currently flowing streams A and B; and wherein said process further comprises the step of agitating said liquid phase material P by injecting a gaseous stream C comprising steam, or at least one inert gas, or a mixture of steam and at least one inert gas into the reactor at or below the final stage of the reactor. The invention further provides a vertical multistage reactor configured to implement said process.

    Abstract translation: 一种用于制造聚酰胺的连续方法,该方法包括以下步骤:(i)使包含二羧酸和二胺的熔融二羧酸或熔融二羧酸富混合物的流A通过第一阶段 以及垂直多级反应器的至少一个反应阶段,其中第一级位于反应器的顶部; (ii)将包含二胺的流B逆流通过位于所述垂直多级反应器的第一反应级之下的至少一级的蒸气或富二
    胺液体流动; (iii)在所述反应器的最后阶段和/或之下积聚包含聚酰胺的液相材料P; 其中所述反应器配备有适于实现逆向流动流A和B之间的接触的内部特征; 并且其中所述方法还包括通过将包含蒸汽或至少一种惰性气体或蒸汽和至少一种惰性气体的混合物的气态流C或以下至少一种惰性气体注入反应器中来搅拌所述液相材料P的步骤 反应堆的阶段。 本发明还提供了一种被配置为实现所述过程的立式多级反应器。

    CONTINUOUS POLYAMIDATION PROCESS - II
    46.
    发明申请
    CONTINUOUS POLYAMIDATION PROCESS - II 审中-公开
    连续聚酰胺工艺 - 二

    公开(公告)号:WO2015075458A1

    公开(公告)日:2015-05-28

    申请号:PCT/GB2014/053438

    申请日:2014-11-20

    Abstract: A continuous process for the manufacture of a polyamide, the process comprising the steps of: (i)flowing a stream A comprising a moltendicarboxylic acid, or a molten dicarboxylic acid-rich mixture comprising a dicarboxylic acid and a diamine, through a first stage and at least one more reaction stage of a vertical multistage reactor, wherein the first stage is at the top of the reactor; (ii)counter-currently flowing a stream B comprising a diamine as either a vapour or a diamine-rich liquid through at least one of the stages below the first reaction stage of said vertical multistage reactor; (iii)accumulating a liquid phase material P comprising polyamide at and/or below the final stage of said reactor; wherein said reactor is equipped with internal features suitable for effecting contact between counter-currently flowing streams A and B; and wherein the process further comprises controlling the viscosity of said liquid phase material P by directly controlling the chemical equilibrium of the polyamidation reactionor by controlling stream B so that the amounts of diamine and dicarboxylic acid introduced intothe reactorduring the processare stoichiometrically imbalanced. The invention further provides a vertical multistage reactor configured to implement said process.

    Abstract translation: 一种用于制造聚酰胺的连续方法,该方法包括以下步骤:(i)使包含二羧酸和二胺的含有糠醛二羧酸或熔融的富含二甲酸的混合物的流A通过第一阶段和 至少一个垂直多级反应器的反应阶段,其中第一级位于反应器的顶部; (ii)将包含二胺的流B逆流通过位于所述垂直多级反应器的第一反应级之下的至少一级的蒸气或富二
    胺液体流动; (iii)在所述反应器的最后阶段和/或之下积聚包含聚酰胺的液相材料P; 其中所述反应器配备有适于实现逆向流动流A和B之间的接触的内部特征; 并且其中所述方法还包括通过控制流B直接控制聚酰胺化反应器的化学平衡来控制所述液相材料P的粘度,使得引入到反应过程中的二胺和二羧酸的量化学计量不平衡。 本发明还提供了一种被配置为实现所述过程的立式多级反应器。

    PROCESS FOR RETROFITTING A POLYMER PRODUCTION APPARATUS
    48.
    发明申请
    PROCESS FOR RETROFITTING A POLYMER PRODUCTION APPARATUS 审中-公开
    改进聚合物生产装置的方法

    公开(公告)号:WO2014179068A1

    公开(公告)日:2014-11-06

    申请号:PCT/US2014/034226

    申请日:2014-04-15

    Abstract: Disclosed are retrofit processes for retrofitting a polymer production apparatus to produce a plurality of polymer products. The retrofit process may comprise modifying an existing primary manifold to include a retrofit manifold and at least one additive injection apparatus. The retrofit process may also comprise modifying an existing secondary manifold to include an additive injection line and a polymer solidifier in contact with the secondary manifold. The retrofitted polymer production apparatus produces varied finished polymer products from one continuous polymerization reactor.

    Abstract translation: 公开了用于改造聚合物制备装置以生产多种聚合物产品的改进方法。 改进过程可以包括修改现有的主歧管以包括改型歧管和至少一种添加剂注射装置。 改进方法还可以包括修改现有的二级歧管以包括与次级歧管接触的添加剂注入管线和聚合物固化器。 改性聚合物生产设备由一个连续聚合反应器生产各种成品聚合物产品。

    OXYGEN SCAVENGING COMPOSITIONS AND METHOD OF PREPARATION
    50.
    发明申请
    OXYGEN SCAVENGING COMPOSITIONS AND METHOD OF PREPARATION 审中-公开
    氧清除组合物和制备方法

    公开(公告)号:WO2006113175A2

    公开(公告)日:2006-10-26

    申请号:PCT/US2006/013065

    申请日:2006-04-07

    Inventor: LIU, Zhenguo

    Abstract: The object of the invention is to provide a polyester composition that actively scavenges oxygen, with or without a transition metal catalyst. This was achieved by using a monomer selected from the group consisting of linear difunctional monomers having the general formula: X - (CH 2 ) n -CH=CH-(CH 2 ) m -X' wherein X and X' are each independently selected from the group consisting of OR and COOR, wherein R is selected from the group consisting of H and alkyl groups with one or more carbon atoms; and n and m are each independently 1 or more. The preferred monomer is 2-butene-l,4-diol (BEDO), and the preferred polyester is the reaction product of this diol with terephthalic acid to form poly(oxy-2-butene-l,4- diyloxycarbonyl-l,4-phenylenecarbonyl) - PBET. Copolymers of PBET are also within the scope of this invention. The polyester oxygen scavenging composition is then blended with conventional container resin such as polyesters, polyamides or polyolefins to make a container.

    Abstract translation: 本发明的目的是提供一种在有或没有过渡金属催化剂的情况下主动清除氧气的聚酯组合物。 这通过使用选自具有以下通式的线性双官能单体的单体来实现:X - (CH 2)n -CH = CH-(CH 2) 其中X和X'各自独立地选自OR和COOR,其中R选自由H和烷基组成的组, 具有一个或多个碳原子; n和m各自独立地为1以上。 优选的单体是2-丁烯-1,4-二醇(BEDO),并且优选的聚酯是该二醇与对苯二甲酸的反应产物以形成聚(氧-2-丁烯-1,4-二氧基羰基-1,4 - 亚苯基羰基) - PBET。 PBET的共聚物也在本发明的范围内。 然后将聚酯除氧组合物与常规的容器树脂如聚酯,聚酰胺或聚烯烃混合制成容器。

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