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    Integrated process for producing carbonylation acetic acid, acetic anhydride, or coproduction of each from a methyl acetate by-product stream
    1.
    发明申请
    Integrated process for producing carbonylation acetic acid, acetic anhydride, or coproduction of each from a methyl acetate by-product stream 有权
    用于生产羰基化乙酸，乙酸酐或由乙酸甲酯副产物流共同生产的一体化方法

    公开(公告)号：US20070197822A1

    公开(公告)日：2007-08-23

    申请号：US11508777

    申请日：2006-11-22

    Applicant: Wayne Picard ,  Mark Scates ,  Stephen Webb ,  Duane Usrey

    Inventor： Wayne Picard ,  Mark Scates ,  Stephen Webb ,  Duane Usrey

    IPC: C07C67/36

    CPC classification number: C07C51/12 ,  C07C51/56 ,  C07C67/03 ,  C07C67/54 ,  Y02P20/125 ,  C07C53/08 ,  C07C69/14 ,  C07C53/12

    Abstract: The present invention is directed to using methyl acetate from a vinyl acetate-based or a vinyl-or ethylene-alcohol based polymer or copolymer process directly for use in a methanol carbonylation production process to produce acetic acid, acetic anhydride, or a coproduction of each. Methyl acetate is a by-product of commercial polyvinyl-alcohol or alkene vinyl alcohol copolymer-based processes. Generally, this material is processed to recover methanol and acetic acid. Discussed herein is a cost-saving scheme to by-pass the methyl acetate processing at production or plant facilities and utilize the methyl acetate in an integrated methanol carbonylation unit. The scheme discussed eliminates an expensive hydrolysis step often associated with the polymer process.

    Abstract translation: 本发明涉及使用乙酸乙烯酯或乙烯基或乙烯 - 醇基聚合物或共聚物方法的乙酸甲酯直接用于甲醇羰基化生产方法中以产生乙酸，乙酸酐或每种 。 乙酸甲酯是市售的聚乙烯醇或烯烃乙烯醇共聚物的工艺的副产物。 通常，将该材料加工以回收甲醇和乙酸。 本文讨论的是节省成本的方案，用于在生产或设备设施旁边旁通乙酸甲酯处理，并在一体化甲醇羰基化单元中使用乙酸甲酯。 所讨论的方案消除了通常与聚合物方法相关的昂贵的水解步骤。

    REMOVAL OF PERMANGANATE REDUCING COMPOUNDS FROM METHANOL CARBONYLATION PROCESS STREAM
    2.
    发明申请
    REMOVAL OF PERMANGANATE REDUCING COMPOUNDS FROM METHANOL CARBONYLATION PROCESS STREAM 有权
    从甲醇碳化过程流中除去减少甲醛的化合物

    公开(公告)号：US20050197509A1

    公开(公告)日：2005-09-08

    申请号：US10708421

    申请日：2004-03-02

    Applicant: Wayne Picard ,  Jose Talancon ,  David Trueba ,  Mark Scates ,  Raymond Zinobile

    Inventor： Wayne Picard ,  Jose Talancon ,  David Trueba ,  Mark Scates ,  Raymond Zinobile

    IPC: C07C51/12 ,  C07C51/48 ,  C07C51/14

    CPC classification number: C07C51/12 ,  C07C51/48 ,  C07C53/08

    Abstract: An improvement of the methanol carbonylation process for manufacturing acetic acid is disclosed. Specifically disclosed is a method for removing permanganate reducing compounds (“PRC's”) from the condensed light ends overhead stream, including (a) distilling at least a portion of the condensed light ends overhead to yield a PRC enriched second overhead stream; (b) extracting the second overhead stream with water and separating therefrom an aqueous stream containing PRC's; and (c) returning at least a portion of the extracted second overhead to the second distiller.

    Abstract translation: 公开了用于制备乙酸的甲醇羰基化方法的改进。 具体公开的是从冷凝的轻馏分塔顶馏出物流中除去高锰酸盐还原化合物（“PRC's”）的方法，包括（a）蒸馏冷凝的轻馏分塔顶馏出物的至少一部分，得到PRC富集的第二塔顶馏出物流; （b）用水萃取第二塔顶馏出物，并从其中分离含有PRC's的含水流; 和（c）将提取的第二开销的至少一部分返回到第二蒸馏器。

    Process for the production of acetic acid
    5.
    发明申请
    Process for the production of acetic acid 有权

    公开(公告)号：US20060247466A1

    公开(公告)日：2006-11-02

    申请号：US11116771

    申请日：2005-04-28

    Applicant: Raymond Zinobile ,  Mark Scates ,  Jonathan Makelki ,  Manuel Salado

    Inventor： Raymond Zinobile ,  Mark Scates ,  Jonathan Makelki ,  Manuel Salado

    IPC: C07C51/14 ,  C07C45/90

    CPC classification number: C07C51/44 ,  C07C51/48 ,  C07C53/08

    Abstract: A process for the reduction and/or removal of permanganate reducing compounds formed by the carbonylation of methanol in the presence of a Group VIII metal carbonylation catalyst to produce acetic acid is disclosed. More specifically, a process for reducing and/or removing permanganate reducing compounds or their precursors from intermediate streams during the formation of acetic acid by said carbonylation processes is disclosed. In particular, a process in which a low boiling overhead vapor stream from a light ends column is subjected to a single distillation to obtain an overhead that is subjected to an extraction to selectively remove and/or reduce PRC's from the process is disclosed.

    REMOVAL OF PERMANGANATE REDUCING COMPOUNDS FROM METHANOL CARBONYLATION PROCESS STREAM
    7.
    发明申请
    REMOVAL OF PERMANGANATE REDUCING COMPOUNDS FROM METHANOL CARBONYLATION PROCESS STREAM 有权
    从甲醇碳化过程流中除去减少甲醛的化合物

    公开(公告)号：US20050197508A1

    公开(公告)日：2005-09-08

    申请号：US10708420

    申请日：2004-03-02

    Applicant: Mark Scates ,  David Trueba ,  Raymond Zinobile

    Inventor： Mark Scates ,  David Trueba ,  Raymond Zinobile

    IPC: C07C51/44 ,  C07C51/48 ,  C07C51/42

    CPC classification number: C07C51/44 ,  C07C51/48 ,  C07C53/08

    Abstract: An improvement of the methanol carbonylation process for manufacturing acetic acid is disclosed. Specifically disclosed is a method for reducing the formation of alkyl iodides and C3-8 carboxylic acids by removing permanganate reducing compounds (“PRC's”) from the light phase of the condensed light ends overhead stream, including (a) distilling the light phase to yield a PRC enriched overhead stream; and (b) extracting the third overhead stream with water in at least two consecutive stages and separating therefrom one or more aqueous streams containing PRC's.

    Abstract translation: 公开了用于制备乙酸的甲醇羰基化方法的改进。 具体公开的是通过从冷凝的轻馏分塔顶液流的轻相中除去高锰酸盐还原化合物（“PRC's”）来减少烷基碘和C 3-8羧酸的形成的方法，包括（ a）蒸馏轻相以产生PRC富集的塔顶馏出物; 和（b）在至少两个连续的阶段用水提取第三塔顶流，并从中分离含有PRC的一种或多种含水物流。

    Removal of permanganate reducing compounds from methanol carbonylation process stream
    10.
    发明申请
    Removal of permanganate reducing compounds from methanol carbonylation process stream 有权
    从甲醇羰基化工艺流中除去高锰酸盐还原化合物

    公开(公告)号：US20080103335A1

    公开(公告)日：2008-05-01

    申请号：US11788455

    申请日：2007-04-20

    Applicant: Mark Scates ,  David Trueba ,  Raymond Zinobile

    Inventor： Mark Scates ,  David Trueba ,  Raymond Zinobile

    IPC: C07C53/122

    CPC classification number: C07C51/44 ,  C07C51/48 ,  C07C53/08

    Abstract: An improvement of the methanol carbonylation process for manufacturing acetic acid is disclosed. Specifically disclosed is a method for reducing the formation of alkyl iodides and C3-8 carboxylic acids by removing permanganate reducing compounds (“PRC's”) from the light phase of the condensed light ends overhead stream, including (a) distilling the light phase to yield a PRC enriched overhead stream; and (b) extracting the third overhead stream with water in at least two consecutive stages and separating therefrom one or more aqueous streams containing PRC”s.

    Abstract translation: 公开了用于制备乙酸的甲醇羰基化方法的改进。 具体公开的是通过从冷凝的轻馏分塔顶液流的轻相中除去高锰酸盐还原化合物（“PRC's”）来减少烷基碘和C 3-8羧酸的形成的方法，包括（ a）蒸馏轻相以产生PRC富集的塔顶馏出物; 和（b）在至少两个连续的阶段用水提取第三塔顶流，并从其中分离出含有PRC的一种或多种含水物流。

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