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    Integrated process for the manufacture of alkenyl carboxylates
    1.
    发明授权
    Integrated process for the manufacture of alkenyl carboxylates 失效
    用于制备链烯基羧酸盐的综合方法

    公开(公告)号：US07390918B2

    公开(公告)日：2008-06-24

    申请号：US10500305

    申请日：2002-12-04

    Applicant: Robert William Clarke ,  Mark Stephen Roberts

    Inventor： Robert William Clarke ,  Mark Stephen Roberts

    IPC: C07C67/04 ,  C07C67/48

    CPC classification number: C07C67/54 ,  C07C5/48 ,  C07C51/215 ,  C07C51/46 ,  C07C67/055 ,  Y02P20/125 ,  Y02P20/582 ,  C07C69/15 ,  C07C53/08 ,  C07C11/04

    Abstract: An integrated process for the production of an alkenyl carboxylate, such as vinyl acetate which process comprises the steps of (a) contacting in an oxidation reaction zone a C2 to C4 alkane, such as ethane, a molecular oxygen-containing gas, optionally the corresponding alkene and optionally water, in the presence of a catalyst to produce a stream comprising alkene, carboxylic acid and water; (b) separating at least a portion of the stream from step (a) into a fraction comprising the alkene and a fraction comprising the carboxylic acid and water; (c) contacting in a second reaction zone at least a portion of said alkene fraction produced in step (b), a carboxylic acid and a molecular oxygen-containing gas, in the presence of a catalyst to produce a product stream comprising an alkenyl carboxylate, water and carboxylic acid; (d) separating at least a portion of the product stream from step (c) and at least a portion of the carboxylic acid and water fraction produced in step (b) by azeotropic distillation into an overhead fraction comprising the alkenyl carboxylate and a base fraction comprising the carboxylic acid; (e) recovering the alkenyl carboxylate from the overhead fraction separated in step (d).

    Abstract translation: 一种用于生产烯基羧酸酯（如乙酸乙烯酯）的整合方法，该方法包括以下步骤：（a）在C 2 O 2的氧化反应区与C 4 烷烃，例如乙烷，含分子氧的气体，任选地相应的烯烃和任选的水，在催化剂的存在下，产生包含烯烃，羧酸和水的流; （b）将来自步骤（a）的物流的至少一部分分离成包含烯烃的馏分和包含羧酸和水的级分; （c）在第二反应区中在催化剂存在下使步骤（b）中产生的所述烯烃馏分的至少一部分与羧酸和含分子氧的气体接触以产生包含链烯基羧酸酯的产物流 ，水和羧酸; （d）通过共沸蒸馏将步骤（c）中的产物流的至少一部分和步骤（b）中产生的羧酸和水部分的至少一部分分离成包含烯基羧酸酯和碱部分的塔顶馏分 包含羧酸; （e）从步骤（d）中分离的塔顶馏分回收烯基羧酸酯。

    Process for the production of vinyl acetate utilizing a recycle stream comprising acetic acid and water
    2.
    发明授权
    Process for the production of vinyl acetate utilizing a recycle stream comprising acetic acid and water 有权
    使用包含乙酸和水的循环流生产乙酸乙烯酯的方法

    公开(公告)号：US06225496B1

    公开(公告)日：2001-05-01

    申请号：US09363391

    申请日：1999-07-29

    Applicant: Michael James Baker ,  Timothy Crispin Bristow ,  Robert William Clarke ,  Simon James Kitchen ,  Bruce Leo Williams

    Inventor： Michael James Baker ,  Timothy Crispin Bristow ,  Robert William Clarke ,  Simon James Kitchen ,  Bruce Leo Williams

    IPC: C07C67055

    CPC classification number: C07C67/055 ,  C07C69/01 ,  C07C69/15

    Abstract: Process for the production of vinyl acetate in which ethylene, acid and oxygen-containing gas are combined at elevated temperature in the presence of a catalyst material to produce (i) a product mixture comprising vinyl acetate, (ii) a liquid by-product comprising acetic acid and (iii) a gaseous by-product comprising carbon dioxide. The liquid by-product is separated from the product mixture and treated to reduce the water content therein before being recycled to the reactor such that the water entering the reactor comprises less than 6 wt %, (preferably less than 4 wt %, more preferably less than 3 wt %) of the total of acetic acid and water entering the reactor.

    Abstract translation: 制备乙烯基乙酸酯的方法，其中乙烯，含酸和含氧气体在升高的温度下在催化剂材料存在下组合以产生（i）包含乙酸乙烯酯的产物混合物，（ii）液体副产物，其包含 乙酸和（iii）包含二氧化碳的气态副产物。 将液体副产物与产物混合物分离，并在再循环至反应器之前进行处理以减少其中的水含量，使得进入反应器的水包含小于6重量％（优选小于4重量％，更优选较少 超过3重量％）进入反应器的乙酸和水的总量。

    Process for the production of an alkenyl carboxylate or an alkyl carboxylate
    4.
    发明授权
    Process for the production of an alkenyl carboxylate or an alkyl carboxylate 失效
    制备链烯基羧酸酯或羧酸烷基酯的方法

    公开(公告)号：US07211688B2

    公开(公告)日：2007-05-01

    申请号：US10505660

    申请日：2003-02-12

    Applicant: Robert William Clarke ,  Robert Croll ,  Andrew Richard Lucy ,  Bruce Leo Williams

    Inventor： Robert William Clarke ,  Robert Croll ,  Andrew Richard Lucy ,  Bruce Leo Williams

    IPC: C07C67/05 ,  C07C69/02 ,  C07C67/02 ,  C07C51/16

    CPC classification number: C07C67/04 ,  C07C67/055 ,  Y02P20/125 ,  Y02P20/582 ,  C07C69/14 ,  C07C69/01 ,  C07C69/15

    Abstract: Process for producing an alkyl carboxylate, comprising contacting in an oxidation reaction zone a C2 to C4 alkane, a molecular oxygen-containing gas, the corresponding alkene and optionally water, in the presence of at least one catalyst active for the oxidation of the alkane to the corresponding alkene and carboxylic acid, to produce a first product stream comprising alkene, unreacted alkane, carboxylic acid and water; separating in a first separation means at least a portion of the product stream produced in the oxidation reaction zone into a gaseous stream comprising alkene and unreacted alkane and a liquid stream comprising carboxylic acid and water; and separating by chemical treatment at least a portion of the gaseous stream obtained from the first separation means into respective streams rich in alkene and alkane; wherein the chemical treatment comprises the steps of: (1) contacting the alkene/alkane gaseous stream with a solution of a metal salt capable of selectively chemically absorbing the alkene to produce a chemically absorbed alkene-rich liquid stream, and (2) recovering an alkene rich stream from the metal salt solution. In a second reaction zone, at least a portion of the alkene rich stream obtained from the second separation means and a corresponding carboxylic acid are contacted, in the presence of at least one catalyst active for the production of alkyl carboxylate, to produce a second product stream comprising alkyl carboxylate.

    Abstract translation: 制备羧酸烷基酯的方法，包括在氧化反应区中将C 2〜C 4烷烃，含分子氧的气体，相应的烯烃和任选的水接触， 在至少一种催化剂存在下使烷烃氧化为相应的烯烃和羧酸的活性物质产生包含烯烃，未反应的烷烃，羧酸和水的第一产物流; 在第一分离装置中将在氧化反应区中产生的产物流的至少一部分分离成包含烯烃和未反应的烷烃的气流以及包含羧酸和水的液体流; 并通过化学处理将从第一分离装置获得的气流的至少一部分分离成富含烯烃和烷烃的各自的流; 其中所述化学处理包括以下步骤：（1）使烯烃/烷烃气流与能够选择性地化学吸收烯烃的金属盐的溶液接触以产生富吸收的富含烯烃的液体流，和（2）回收 富含烯烃的金属盐溶液。 在第二反应区中，在至少一种催化活性物质用于制备羧酸烷基酯的催化剂的存在下，将从第二分离装置获得的至少一部分富含烯烃物流和相应的羧酸接触以产生第二产物 流包含羧酸烷基酯。

    Imidazo [5,1-f]-as-triazines
    7.
    发明授权
    Imidazo [5,1-f]-as-triazines 失效
    咪唑并[{5,1-f {9 -as-triazines

    公开(公告)号：US3941785A

    公开(公告)日：1976-03-02

    申请号：US427558

    申请日：1973-12-26

    Applicant: Robert William Clarke ,  David Hartley ,  Alexander William Oxford

    Inventor： Robert William Clarke ,  David Hartley ,  Alexander William Oxford

    IPC: A61K31/53 ,  C07D253/075 ,  C07D487/04 ,  C07D253/08

    CPC classification number: C07D253/075 ,  A61K31/53 ,  C07D487/04 ,  Y10S514/826 ,  Y10S514/869 ,  Y10S514/87

    Abstract: Compounds of the general formula: ##SPC1##In which:R.sub.1 and R.sub.2 which may be the same or different, represent a hydrogen atom or an alkyl group which may optionally be substituted by an aryl group, or represents an alkanoyl, aroyl or alkanesulphonyl group;R.sub.3 represents a hydrogen atom, or an alkyl group which may optionally be substituted by an aryl group, or represents an alkenyl, aryl or alkylthio group;R.sub.4 represents a hydrogen atom or an alkyl group; andR.sub.5 represents a hydrogen atom or an aryl or alkyl group, which alkyl group may optionally be substituted by a cycloalkyl group;And physiologically acceptable salts and derivatives thereof and addition products formed by nucleophilic addition.These compounds act as spasmolytics and phosphodiasterase inhibitors and have cardiotonic and diuretic properties. They are also of use in the treatment of skin disorders and gout.

    Abstract translation: 通式的化合物：

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