利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

112 条记录 (耗时 0.027 秒)

    Multi-stage Process for Forming Polyarylene Sulfides
    1.
    发明申请
    Multi-stage Process for Forming Polyarylene Sulfides 有权
    形成聚亚芳基硫化物的多阶段工艺

    公开(公告)号：US20150087776A1

    公开(公告)日：2015-03-26

    申请号：US14481257

    申请日：2014-09-09

    申请人： Ticona LLC

    发明人： Hendrich Chiong ,  Michael Haubs ,  Damian Feord ,  Stanley Leonard ,  Jacob Grayson ,  Venkata Nekkanti

    IPC分类号： C08G75/14 ,  B01J19/00 ,  C08J3/20

    CPC分类号： C08G75/14 ,  B01J19/0046 ,  B01J19/1862 ,  B01J2208/00176 ,  B01J2208/00274 ,  B01J2208/00283 ,  B01J2208/00539 ,  B01J2219/0013

    摘要： A multi-stage process and system for formation of a polyarylene sulfide is described. The multi-stage process can include at least three separate formation stages that can take place in three different reactors. The first stage of the formation process can include reaction of an alkali metal sulfide with an organic amide solvent to form a complex including a hydrolysis product of the solvent and an alkali metal hydrogen sulfide. The second stage of the formation process can include reaction of the complex formed in the first stage with a dihaloaromatic monomer to form a prepolymer, and the third stage can include further polymerization of the prepolymer with additional monomers to form the final product.

    摘要翻译： 描述了用于形成聚芳硫醚的多阶段方法和系统。 多级方法可以包括可以在三个不同的反应器中进行的至少三个分开的形成阶段。 形成方法的第一阶段可以包括碱金属硫化物与有机酰胺溶剂的反应以形成包括溶剂和碱金属硫化氢的水解产物的络合物。 形成方法的第二阶段可以包括在第一阶段中形成的络合物与二卤代芳族单体的反应以形成预聚物，第三阶段可以包括使预聚物与另外的单体进一步聚合以形成最终产物。

    Production of biodiesel
    2.
    发明申请
    Production of biodiesel 审中-公开
    生产生物柴油

    公开(公告)号：US20100192453A1

    公开(公告)日：2010-08-05

    申请号：US12322316

    申请日：2009-02-02

    申请人： Naresh Pachauri

    发明人： Naresh Pachauri

    IPC分类号： C10L1/02 ,  B01J19/00

    CPC分类号： C10L1/026 ,  B01D3/009 ,  B01J4/005 ,  B01J2219/0013 ,  C10G2300/1011 ,  Y02E50/13 ,  Y02P30/20

    摘要： A continuous flow, RD reactor system, that comprises, in combination a reaction column, first means feeding vegetable oil, liquid methanol and catalyst to the upper interior of the column, a condenser reclining methanol vapor for the upper interior of the column, and for producing condensed methanol recycled to the column upper interior, and for delivering a stream of refluxed methanol liquid to the upper interior of the column, and several means for receiving product biodiesel and liquid methanol for the lower interior of the column, and for separating Biodiesel in a primary product stream and returning methanol vapor to the column.

    摘要翻译： 连续流动的RD反应器系统，其包括反应塔的组合，首先意味着将植物油，液体甲醇和催化剂供给到塔的上部内部，冷凝器用于塔的上部内部的甲醇蒸气，并且用于 生成再循环到柱上部内部的冷凝甲醇，以及将回流的甲醇液体输送到塔的上部内部，以及用于接收柱的下部内部的产物生物柴油和液体甲醇的几种装置，并用于分离生物柴油 初级产物流并将甲醇蒸气返回到塔中。

    Liquid nozzle with variable liquid level
    7.
    发明申请
    Liquid nozzle with variable liquid level 失效
    具有可变液位的液体喷嘴

    公开(公告)号：US20030096923A1

    公开(公告)日：2003-05-22

    申请号：US10221861

    申请日：2002-12-26

    发明人： Jean-Louis Chamayou ,  Jean-Claude Chinh

    IPC分类号： A62B018/00 ,  C08G085/00

    CPC分类号： B01J8/1827 ,  B01J19/26 ,  B01J2219/00065 ,  B01J2219/00103 ,  B01J2219/0013 ,  B01J2219/00162 ,  B01J2219/00164 ,  B01J2219/00182 ,  B01J2219/00261 ,  B05B9/04 ,  C08F10/00 ,  Y10S526/901 ,  C08F2/34

    摘要： The present invention relates to a nozzle for the injection of a liquid under pressure (3), comprising a vertical feed pipe (1) surmounted by a hollow head (3), the liquid under pressure being conducted between the outer wall (4) of the vertical feed pipe (1) and an inner tube (5), the upper part of the nozzle comprising at least one lateral orifice (6) for expelling the liquid under pressure (3). This nozzle is characterized in that the upper end of the inner tube (5) of the vertical feed pipe (1) emerges at a height above the lateral orifice(s) (6), thereby making it possible, when stopping the injection of the liquid under pressure (3), to introduce a gas under pressure (8) via the inner tube (5) of the vertical feed pipe (1). which generates an overpressure in the upper part of the nozzle in order, on the one hand, to lower the level of the liquid (9) under pressure (3) below the lateral orifice(s) (6) and, on the other hand, to prevent any backflow of solids, liquids and/or gases, from the medium into which the liquid under pressure (3) is injected. towards the inside of the nozzle.

    摘要翻译： 本发明涉及一种用于在压力下注入液体的喷嘴（3），其包括由中空头（3）所覆盖的垂直进料管（1），所述压力下的液体在 垂直进料管（1）和内管（5），喷嘴的上部包括用于在压力（3）下排出液体的至少一个侧向孔口（6）。 该喷嘴的特征在于，垂直进料管（1）的内管（5）的上端在侧向孔（6）的上方突出高度，从而使得可以在停止喷射 在压力下（3）的液体，通过垂直进料管（1）的内管（5）引入压力下的气体（8）。 一方面在喷嘴的上部产生过压，一方面是在侧向孔（6）下方的压力（3）下降低液体（9）的高度，另一方面 ，以防止固体，液体和/或气体从注入压力（3）的液体的介质中回流。 朝向喷嘴的内侧。

    Multistage method for manufacturing polyolefins
    9.
    发明授权
    Multistage method for manufacturing polyolefins 失效
    制造聚烯烃的多级方法

    公开(公告)号：US06326442B1

    公开(公告)日：2001-12-04

    申请号：US09570946

    申请日：2000-05-15

    申请人： Russell John Koveal ,  James John McAlpin ,  Jeffrey Lawrence Brinen

    发明人： Russell John Koveal ,  James John McAlpin ,  Jeffrey Lawrence Brinen

    IPC分类号： C08F201

    CPC分类号： B01J19/245 ,  B01J2219/00114 ,  B01J2219/0013 ,  B01J2219/00162 ,  B01J2219/00182 ,  C08F10/00 ,  C08F2/001

    摘要： The present invention provides a method for substantially continuously polymerizing olefins comprising: introducing into a first reaction zone a fresh olefin polymerization catalyst; contacting said fresh olefin polymerization catalyst in said first reaction zone with a first vent mixture at a first feed rate and under conditions sufficient to form and avoid melting a polyolefin, wherein first vent mixture comprises unreacted olefins and a diluent vented from a second reaction zone; withdrawing a vent product of unreacted olefins and diluent from said first reaction zone; withdrawing from said first reaction zone a first product mixture comprising said catalyst and said polyolefin; passing said first product mixture to said second reaction zone; contacting said first product mixture in said second reaction zone with a second vent mixture at a second feed rate and under conditions sufficient to form and avoid melting said polyolefin, wherein said second vent mixture comprises a material selected from the group consisting of a fresh feed and a mixture comprising unreacted olefins and diluent from a third reaction zone; and, withdrawing from said second reaction zone a second product mixture comprising said catalyst and said polyolefin.

    摘要翻译： 本发明提供了一种基本上连续聚合烯烃的方法，包括：将新鲜的烯烃聚合催化剂引入第一反应区; 在第一进料速率和足以形成和避免熔化聚烯烃的条件下使所述第一反应区中的所述新鲜烯烃聚合催化剂与第一排气混合物接触，其中第一排气混合物包含未反应的烯烃和从第二反应区排出的稀释剂; 从所述第一反应区抽出未反应的烯烃和稀释剂的排放产物; 从所述第一反应区抽出含有所述催化剂和所述聚烯烃的第一产物混合物; 将所述第一产物混合物通入所述第二反应区; 使所述第二反应区中的所述第一产物混合物与第二排气混合物以第二进料速率和足以形成和避免熔化所述聚烯烃的条件接触，其中所述第二排气混合物包含选自新鲜进料和 包含来自第三反应区的未反应烯烃和稀释剂的混合物; 并且从所述第二反应区抽出包含所述催化剂和所述聚烯烃的第二产物混合物。

    Method for increasing conversion efficiency for oxidation of an alkyl aromatic compound to an aromatic carboxylic acid
    10.
    发明授权
    Method for increasing conversion efficiency for oxidation of an alkyl aromatic compound to an aromatic carboxylic acid 失效
    提高烷基芳族化合物氧化成芳香族羧酸的转化效率的方法

    公开(公告)号：US5099064A

    公开(公告)日：1992-03-24

    申请号：US814655

    申请日：1985-12-30

    申请人： William F. Huber, Jr. ,  Martin A. Zeitlin

    发明人： William F. Huber, Jr. ,  Martin A. Zeitlin

    IPC分类号： C07C51/265

    CPC分类号： B01J19/0066 ,  C07C51/265 ,  B01J2219/0013

    摘要： A method and system for increasing conversion efficiency of aromatic alkyl reactant to aromatic carboxylic acid product and for improving the quality of the product, are disclosed. The method and system provide for the continuous production of an aromatic carboxylic acid by the liquid phase, exothermic oxidation of an aromatic alkyl in a vaporizable solvent in an oxidation reactor. The reactor makes use of a vented, overhead condenser system and a separator system for condensation of vaporized reactor material, separation of the condensed solvent therefrom, and reflux of separated solvent back into the reactor. The improvement comprises combining the reactor liquid feedstream with the refluxed solvent upstream from the oxidation reactor.

    摘要翻译： 公开了一种用于提高芳族烷基反应物对芳族羧酸产物的转化效率和提高产物质量的方法和系统。 该方法和系统提供通过液相连续生产芳族羧酸，在氧化反应器中在可蒸发溶剂中芳族烷基的放热氧化。 反应器利用通风的塔顶冷凝器系统和用于冷凝蒸发的反应器材料的分离器系统，从其中分离冷凝的溶剂以及将分离的溶剂回流回反应器。 改进之处在于将反应器液体进料流与氧化反应器上游的回流溶剂组合。