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    Methods and devices for oxidizing a hydrocarbon to form an acid
    1.
    发明授权
    Methods and devices for oxidizing a hydrocarbon to form an acid 失效
    用于氧化烃以形成酸的方法和装置

    公开(公告)号：US06359173B1

    公开(公告)日：2002-03-19

    申请号：US08989910

    申请日：1997-12-12

    申请人： Sharon M. Aldrich ,  David C. DeCoster ,  Eustathios Vassiliou ,  Mark W. Dassel ,  Ader M. Rostami

    发明人： Sharon M. Aldrich ,  David C. DeCoster ,  Eustathios Vassiliou ,  Mark W. Dassel ,  Ader M. Rostami

    IPC分类号： C07C5131

    CPC分类号： C07C51/42 ,  B01D3/346 ,  B01J10/002 ,  B01J19/0006 ,  B01J19/006 ,  B01J19/18 ,  B01J19/26 ,  B01J2219/00058 ,  B01J2219/00065 ,  B01J2219/00067 ,  B01J2219/00083 ,  B01J2219/00101 ,  B01J2219/00128 ,  B01J2219/00162 ,  B01J2219/00164 ,  B01J2219/00186 ,  B01J2219/00777 ,  C07C51/265 ,  C07C51/313 ,  C07C63/16 ,  C07C63/24 ,  C07C63/26 ,  C07C55/14

    摘要： Methods and devices for controlling the reaction of a hydrocarbon to an acid by making phase-related adjustments are disclosed. In order to improve reaction rate and reactivity of the oxidation, a single phase at the operating temperature is attained and maintained by adjusting one or more of gaseous oxidant flow rate, pressure in the reaction zone, temperature in the reaction zone, feed rate of hydrocarbon, feed rate of solvent, feed rate of water if water is being fed, feed rate of the catalyst and other parameters. Methods and devices are also disclosed, wherein a hydrocarbon is reacted at a steady state with a gaseous oxidant to form an acid in a liquid mixture. The amount of water is maintained between a maximum level of water, over which maximum level the substantially single liquid phase is transformed to two liquid phases, and a minimum level under which catalyst precipitates. Further, methods are disclosed, wherein the temperature of the mixture is lowered to a point at which solid dibasic acid is precipitated, while maintaining a single liquid phase, and optionally all the catalyst in solution. At least part of the formed acid is then removed. The preferred hydrocarbon is cyclohexane, the preferred acid is adipic acid, the preferred solvent is acetic acid, and the preferred catalyst is cobalt(II) acetate tetrahydrate.

    摘要翻译： 公开了通过进行相位调节来控制烃与酸的反应的方法和装置。 为了提高反应速率和氧化反应性，通过调节一种或多种气态氧化剂流量，反应区中的压力，反应区中的温度，烃的进料速率来获得并保持在操作温度下的单相 ，溶剂的进料速率，加水的进料速率，催化剂的进料速率等参数。 还公开了方法和装置，其中烃在稳定状态下与气态氧化剂反应以在液体混合物中形成酸。 水的量保持在最大水位之间，其中基本上单个液相的最大水平转变为两个液相，以及催化剂沉淀的最低水平。 此外，公开了一种方法，其中混合物的温度降低到固体二元酸沉淀的点，同时保持单一液相，以及任选地所有催化剂在溶液中。 然后除去形成的酸的至少一部分。 优选的烃是环己烷，优选的酸是己二酸，优选的溶剂是乙酸，优选的催化剂是乙酸钴（II）四水合物。

    Methods and devices for controlling the reaction rate and/or reactivity of hydrocarbon to an intermediate oxidation product by adjusting the oxidant consumption rate
    3.
    发明授权
    Methods and devices for controlling the reaction rate and/or reactivity of hydrocarbon to an intermediate oxidation product by adjusting the oxidant consumption rate 失效
    通过调节氧化剂消耗速率来控制烃与中间氧化产物的反应速率和/或反应性的方法和装置

    公开(公告)号：US06288274B1

    公开(公告)日：2001-09-11

    申请号：US09253172

    申请日：1999-02-19

    申请人： David C. DeCoster ,  Eustathios Vassiliou ,  Mark W. Dassel ,  Sharon M. Aldrich ,  Ader M. Rostami

    发明人： David C. DeCoster ,  Eustathios Vassiliou ,  Mark W. Dassel ,  Sharon M. Aldrich ,  Ader M. Rostami

    IPC分类号： C07C5131

    CPC分类号： C07C51/313 ,  B01J10/002 ,  B01J19/0006 ,  B01J2219/00058 ,  B01J2219/00065 ,  B01J2219/00069 ,  B01J2219/00074 ,  B01J2219/00103 ,  B01J2219/00162 ,  B01J2219/00164 ,  C07C55/14

    摘要： Methods and devices for controlling the reaction rate and/or reactivity of a hydrocarbon to an intermediate oxidation product, such as an acid, within predetermined limits, are disclosed. Control of the reaction rate and/or reactivity within predetermined limits is achieved by monitoring and controlling the oxidant consumption rate. According to the present invention, examples of ways to determine the oxidant consumption rate include, but are not limited to, monitoring the flow rates of incoming and outgoing oxidant, monitoring pressure differentials after temporarily ceasing entry and exit of gases, and monitoring the flow rates of incoming and outgoing gases, and monitoring the rates of incoming and outgoing hydrocarbon. The methods and devices of the present invention are particularly advantageous in the case that the hydrocarbon is cyclohexane, the intermediate oxidation product is adipic acid, the solvent is acetic acid, the catalyst is cobalt (II) acetate tetrahydrate, and the initiator or promoter is cyclohexane, or acetaldehyde, or a mixture of thereof.

    摘要翻译： 公开了用于在预定限度内控制烃与中间氧化产物（例如酸）​​的反应速率和/或反应性的方法和装置。 通过监测和控制氧化剂消耗速率来实现在预定限度内控制反应速率和/或反应活性。 根据本发明，确定氧化剂消耗速率的方法的实例包括但不限于监测进出氧化剂的流量，监测临时停止气体进入和排出之后的压力差，以及监测流量 的进出气体，以及监测进出碳氢化合物的速率。 本发明的方法和装置在烃是环己烷，中间体氧化产物是己二酸，溶剂是乙酸，催化剂是四水合钴（II））的情况下是特别有利的，引发剂或促进剂是 环己烷或乙醛，或其混合物。

    Methods and devices for controlling hydrocarbon oxidations to respective acids by adjusting the solvent to hydrocarbon ratio
    4.
    发明授权
    Methods and devices for controlling hydrocarbon oxidations to respective acids by adjusting the solvent to hydrocarbon ratio 失效
    通过调节溶剂与烃的比例来控制各种酸的烃氧化的方法和装置

    公开(公告)号：US6037491A

    公开(公告)日：2000-03-14

    申请号：US900323

    申请日：1997-07-25

    申请人： Eustathios Vassiliou ,  Mark W. Dassel ,  Sharon M. Aldrich ,  Ader M. Rostami ,  David C. DeCoster

    发明人： Eustathios Vassiliou ,  Mark W. Dassel ,  Sharon M. Aldrich ,  Ader M. Rostami ,  David C. DeCoster

    IPC分类号： B01J10/00 ,  B01J19/00 ,  B01J19/18 ,  C07B61/00 ,  C07C51/215 ,  C07C51/31 ,  C07C55/14 ,  D01F6/60 ,  D01F6/62 ,  D01F6/74 ,  C07C51/16

    CPC分类号： D01F6/74 ,  B01J19/0006 ,  C07C51/215 ,  C07C51/313 ,  D01F6/60 ,  D01F6/62

    摘要： This invention relates to methods and devices of preparing acids, such as adipic acid for example, by oxidizing a hydrocarbon, such as cyclohexane for example, with a gas containing an oxidant, preferably oxygen. A respective hydrocarbon is reacted, preferably at a steady state, with a gaseous oxidant to form an acid in a liquid mixture which preferably contains a solvent, a catalyst, water, and an initiator. The ratio of solvent to hydrocarbon may be controlled in a manner to maintain in the reaction zone maximum reaction rate and/or reactivity, or reaction rate and/or reactivity within a desired range, or reaction rate and/or reactivity directed toward a desired range. In addition, the ratio of solvent to hydrocarbon is controlled in a manner to maintain in the reaction zone substantially maximum selectivity and/or yield, or selectivity and/or yield within a desired range, or selectivity and/or yield directed toward a desired range.

    摘要翻译： 本发明涉及例如通过用含有氧化剂，优选氧气的气体氧化烃例如环己烷来制备酸例如己二酸的方法和装置。 相应的烃优选在稳定状态下与气态氧化剂反应，以在优选含有溶剂，催化剂，水和引发剂的液体混合物中形成酸。 可以以保持反应区域中最大反应速率和/或反应性或在所需范围内的反应速率和/或反应性，或反应速率和/或反应性达到所需范围的方式来控制溶剂与烃的比例 。 此外，以保持反应区域中基本上最大选择性和/或产率，或期望范围内的选择性和/或产率，或者指向所需范围的选择性和/或屈服的方式来控制溶剂与烃的比例 。