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    Separation method for dinitrotoluene and mixed acid in a toluene to dinitrotoluene process
    56.
    发明授权
    Separation method for dinitrotoluene and mixed acid in a toluene to dinitrotoluene process 有权

    公开(公告)号：US09284257B2

    公开(公告)日：2016-03-15

    申请号：US14653687

    申请日：2013-12-10

    Applicant: BASF SE ,  SHANGHAI BASF POLYURETHANE COMPANY LIMITED

    Inventor： Yuanshen Dai ,  Da Peng Li ,  Pei Shi Jia ,  Zhan Cai ,  Samuel Neto

    IPC: C07C205/00 ,  C07C201/08

    CPC classification number: C07C201/08 ,  B01D17/0217 ,  C07C201/16 ,  C07C205/06

    Abstract: Proposed is a separation method in a toluene to dinitrotoluene process, wherein said method with a first process step comprising feeding a toluene comprising first stream (1) and a nitric acid comprising second stream (2) into a first reactor (R1), reacting of the toluene comprising first stream (1) and the nitric acid comprising second stream (2) within the first reactor (R1) to a first reaction mixture (3), said first reaction mixture (3) comprising a first liquid/liquid mixed phase of an acid phase and an organic phase comprising mononitrotoluene, feeding the first reaction mixture (3) into a first separation device (S1), separating the first reaction mixture (3) within the first separation device (S1) into a first forward stream (4) having a flow direction to a second process step and a first backward stream (5) having a flow direction back to the first reactor (R1), said method having a second process step comprising feeding the first forward stream (4) into a second reactor (R2), feeding a nitric acid comprising third stream (6) and a sulfuric acid comprising fourth stream (7) into the second reactor (R2), reacting of the first forward stream (4), the nitric acid comprising third stream (6) and the sulfuric acid comprising fourth stream (7) within the second reactor (R2) to a second reaction mixture (8), said second reaction mixture (8) comprising a second liquid/liquid mixed acid phase and an organic phase comprising mononitrotoluene and dinitrotoluene, feeding the second reaction mixture (8) into a second separation device (S2), separating the second reaction mixture (8) within the second separation device (S2) into a second forward stream (9) having a flow direction to a process output and a second backward stream (10) having a flow direction back to the first reactor (R1), wherein fine separating of at least one of the streams (4, 5, 9, 10) after the first separation step (S1) and/or the second separation step (S2) in a coalescer is carried out.

    ELECTROCHEMICAL CELLS COMPRISING REACTION PRODUCTS OF POLYIMIDES
    57.
    发明申请
    ELECTROCHEMICAL CELLS COMPRISING REACTION PRODUCTS OF POLYIMIDES 审中-公开
    包含POLYIMIDES反应产物的电化学电池

    公开(公告)号：US20150214526A1

    公开(公告)日：2015-07-30

    申请号：US14425119

    申请日：2013-08-12

    Applicant: BASF SE ,  BASF SCHWEIZ AG

    Inventor： Anna Cristadoro ,  Oliver Gronwald ,  Benedikt Crone ,  Raimund Pietruschka ,  Ingrid Haupt

    IPC: H01M2/16 ,  H01M4/131 ,  H01M4/485 ,  H01M10/0525 ,  H01M4/587 ,  H01M4/133 ,  H01M4/62

    CPC classification number: H01M2/1653 ,  H01M2/162 ,  H01M2/166 ,  H01M4/131 ,  H01M4/133 ,  H01M4/485 ,  H01M4/587 ,  H01M4/625 ,  H01M10/0525 ,  H01M2220/20 ,  H01M2220/30

    Abstract: Electrochemical cell comprising (A) at least one anode as component (A), (B) at least one cathode as component (B), (C) at least one non-aqueous electrolyte as component (C), (D) at least one separator positioned between anode (A) and cathode (B), as component (D), characterized in that separator (D) is manufactured from at least one polyimide selected from reaction products of (a) at least one polyimide selected from condensation products of (α) at least one polyisocyanate having on average at least two isocyanate groups per molecule and (β) at least one polycarboxylic acid having at least 3 COOH groups per molecule or an anhydride or ester thereof, and (b) at least one diol or triol, and subsequently optionally reacted with (c) at least one polyisocyanate having on average at least two isocyanate groups per molecule.

    Abstract translation: 电化学电池，其包含（A）至少一种作为组分（A）的阳极，（B）至少一种作为组分（B）的阴极，（C）至少一种非水电解质作为组分（C），（D）至少 位于阳极（A）和阴极（B）之间的一个分离器，作为组分（D），其特征在于分离器（D）由至少一种聚酰亚胺制成，所述聚酰亚胺选自（a）至少一种选自缩合产物 的（α）至少一种每分子平均具有至少两个异氰酸酯基团的多异氰酸酯和（>）每分子具有至少3个COOH基团的至少一种多元羧酸或其酸酐或酯，和（b）至少一种 二醇或三醇，并随后任选地与（c）每分子平均具有至少两个异氰酸酯基团的至少一种多异氰酸酯反应。

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