Processes for Producing Acrylic Acids and Acrylates
    7.
    发明申请
    Processes for Producing Acrylic Acids and Acrylates 失效
    生产丙烯酸和丙烯酸酯的方法

    公开(公告)号:US20130085301A1

    公开(公告)日:2013-04-04

    申请号:US13420787

    申请日:2012-03-15

    IPC分类号: C07C51/48

    摘要: In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of providing a crude product stream comprising the acrylate product, an alkylenating agent, and water. The process further comprises the step of contacting at least a portion of the crude product stream or a derivative thereof with an extraction agent mixture to form an extract stream and a raffinate stream. The extract stream comprises acrylate product and extraction agent. The raffinate stream comprises alkylenating agent and water. Preferably, the extraction agent mixture comprises at least two extraction agents.

    摘要翻译: 在一个实施方案中,本发明涉及一种生产丙烯酸酯产物的方法。 该方法包括提供包含丙烯酸酯产物,亚烷基化剂和水的粗产物流的步骤。 该方法还包括将至少一部分粗产物流或其衍生物与提取剂混合物接触以形成萃取物流和萃余液流的步骤。 提取物流包含丙烯酸酯产物和提取剂。 萃余液流包括亚烷基化剂和水。 优选地,提取剂混合物包含至少两种提取剂。

    Processes for producing acrylic acids and acrylates
    8.
    发明授权
    Processes for producing acrylic acids and acrylates 失效
    制备丙烯酸和丙烯酸酯的方法

    公开(公告)号:US08658824B2

    公开(公告)日:2014-02-25

    申请号:US13420787

    申请日:2012-03-15

    IPC分类号: C07C51/44

    摘要: In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of providing a crude product stream comprising the acrylate product, an alkylenating agent, and water. The process further comprises the step of contacting at least a portion of the crude product stream or a derivative thereof with an extraction agent mixture to form an extract stream and a raffinate stream. The extract stream comprises acrylate product and extraction agent. The raffinate stream comprises alkylenating agent and water. Preferably, the extraction agent mixture comprises at least two extraction agents.

    摘要翻译: 在一个实施方案中,本发明涉及一种生产丙烯酸酯产物的方法。 该方法包括提供包含丙烯酸酯产物,亚烷基化剂和水的粗产物流的步骤。 该方法还包括将至少一部分粗产物流或其衍生物与提取剂混合物接触以形成萃取物流和萃余液流的步骤。 提取物流包含丙烯酸酯产物和提取剂。 萃余液流包括亚烷基化剂和水。 优选地,提取剂混合物包含至少两种提取剂。

    Process for the production of acetic acid

    公开(公告)号:US20060247466A1

    公开(公告)日:2006-11-02

    申请号:US11116771

    申请日:2005-04-28

    IPC分类号: C07C51/14 C07C45/90

    CPC分类号: C07C51/44 C07C51/48 C07C53/08

    摘要: 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
    10.
    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

    IPC分类号: C07C51/12 C07C51/48 C07C51/14

    CPC分类号: C07C51/12 C07C51/48 C07C53/08

    摘要: 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.

    摘要翻译: 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。