利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

27 条记录 (耗时 0.026 秒)

    Method of (meth) acrylate production
    3.
    发明申请
    Method of (meth) acrylate production 审中-公开
    （甲基）丙烯酸酯生产方法

    公开(公告)号：US20090124825A1

    公开(公告)日：2009-05-14

    申请号：US11985409

    申请日：2007-11-14

    申请人： Yong Tang ,  Chunlei Zhang ,  Jianxue Ma ,  Jingming Shao

    发明人： Yong Tang ,  Chunlei Zhang ,  Jianxue Ma ,  Jingming Shao

    IPC分类号： C07C69/52

    CPC分类号： C07C51/252 ,  C07C51/44 ,  C07C57/04

    摘要： A method of methacrylate production includes the steps of providing methacrylate gas mixture; absorbing said gas mixture by water to form a solution mixture; introducing said solution mixture into a distillation column, separating impure methacrylate from said solution mixture in said distillation column that solution of said impure methacrylate is collected at said stripping section of said distillation column; and removing acetic acid from said impure methacrylate to produce methacrylate. It effectively enhances the separation capacity of the distillation column, lowers the whole column pressure drop and operation temperature, avoids the polymerization tendency of the methacrylate under high temperature, to make the water content of the bottom discharging decreases to 0.6%, acetic acid content reduces to below 2%, methyl acrylic content of the top column water phase decreases to 0.5%, thereby reduces the methacrylate products unit consumption and improves the product quality.

    摘要翻译： 甲基丙烯酸酯生产方法包括提供甲基丙烯酸酯气体混合物的步骤; 通过水吸收所述气体混合物以形成溶液混合物; 将所述溶液混合物引入蒸馏塔中，从所述蒸馏塔中的所述溶液混合物中分离不纯的甲基丙烯酸酯，将所述不纯的甲基丙烯酸酯的溶液收集在所述蒸馏塔的所述汽提部分; 并从所述不纯的甲基丙烯酸酯中除去乙酸以制备甲基丙烯酸酯。 有效提高了蒸馏塔的分离能力，降低了整个柱压降和操作温度，避免了高温下甲基丙烯酸酯的聚合倾向，使底部放电的含水量降低至0.6％，乙酸含量降低 至2％以下，顶级水相甲基丙烯酸含量降低至0.5％，从而降低甲基丙烯酸酯产品的单位消耗，提高产品质量。

    CONVERTIBLE COMBINATION OF ATTIRE AND BACKPACK WITH NETWORK COMMUNICATION AND INTELLIGENT SENSING FEATURES
    4.
    发明申请
    CONVERTIBLE COMBINATION OF ATTIRE AND BACKPACK WITH NETWORK COMMUNICATION AND INTELLIGENT SENSING FEATURES 有权

    公开(公告)号：US20220240653A1

    公开(公告)日：2022-08-04

    申请号：US17166253

    申请日：2021-02-03

    申请人： Chunlei Zhang ,  Yin Sheng Zhang

    发明人： Chunlei Zhang ,  Yin Sheng Zhang

    IPC分类号： A45F3/04 ,  H04W84/18 ,  G16Y30/00 ,  G16Y40/35 ,  G06F1/16

    摘要： The application introduces the technology of Internet of Things into field of attire design, and creates a communicative and sensitive device: the composite and convertible attire with network communication and intelligent sensitive features, referred to as COMS Attire, its purpose is to liberate mobile devices from “hand-held” mode, and use the convertibility of attire to protect and enhance intelligent elements. Attire is big in size, large in capacity, deformable in shape, attachable and detachable in structure, and its carried items can be exposed and concealed at will. Attire is a daily necessity in people's lives, and the most suitable place for development of new generation of mobile intelligent device to replace the miniaturized traditional mobile one; the technical achievements of hardware “miniaturization” make COMS attire more intelligent, more fashionable and popular with users. COMS attire increases the choice of chip types, and expands the installation space of intelligent components.