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    PROCESS FOR PREPARING PROPYLENE OXIDE
    4.
    发明申请
    PROCESS FOR PREPARING PROPYLENE OXIDE 有权
    制备丙烯氧化物的方法

    公开(公告)号：US20160176834A1

    公开(公告)日：2016-06-23

    申请号：US14907998

    申请日：2014-07-16

    申请人： BASF SE ,  DOW GLOBAL TECHNOLOGIES LLC

    发明人： Joaquim Henrique TELES ,  Bianca SEELIG ,  Dominic RIEDEL ,  Philip KAMPE ,  Daniel URBANCZYK ,  Markus WEBER ,  Ulrich MUELLER ,  Andrei-Nicolae PARVULESCU ,  Kai GUMLICH ,  Peter BASSLER ,  Christian BARTOSCH ,  Richard JACUBINAS ,  Meinolf WEIDENBACH ,  Werner WITZL

    IPC分类号： C07D301/12 ,  B01J27/188 ,  B01J27/18 ,  B01J29/70

    CPC分类号： C07D301/12 ,  B01J27/18 ,  B01J27/188 ,  B01J29/7038 ,  B01J29/7088 ,  B01J35/002 ,  B01J35/1019 ,  B01J2229/186 ,  Y02P20/52

    摘要： A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, optionally propane, and at least one dissolved potassium salt of a phosphorus oxyacid wherein the molar ratio of potassium relative to phosphorus in the at least one potassium salt of a phosphorus oxyacid is in the range of from 0.6 to 1.4; (ii) passing the liquid feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MVVW comprising zinc, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation reactor, obtaining a reaction mixture comprising propylene oxide, acetonitrile, water, the at least one dissolved potassium salt of a phosphorus oxyacid, optionally propene, and optionally propane; (iii) removing an effluent stream from the epoxidation reactor, the effluent stream comprising propylene oxide, acetonitrile, water, at least a portion of the at least one dissolved potassium salt of a phosphorus oxyacid, optionally propene, and optionally propane.

    摘要翻译： 一种用于制备环氧丙烷的连续方法，包括（i）提供包含丙烯，过氧化氢，乙腈，水，任选的丙烷和至少一种溶解的含磷酸钾的液体进料流，其中钾相对的摩尔比 在磷氧基酸的至少一种钾盐中的磷在0.6至1.4的范围内; （ii）将（i）中提供的液体进料流送入包含催化剂的环氧化反应器中，所述催化剂包含含锌的结构型MVVW的钛沸石，并使液体进料流在环氧化反应器中进行环氧化反应条件，得到反应混合物 包括环氧丙烷，乙腈，水，所述至少一种溶解的含磷酸的钾盐，任选的丙烯，以及任选的丙烷; （iii）从环氧化反应器中除去流出物流，所述流出物流包含环氧丙烷，乙腈，水，所述至少一种溶解的含磷酸的钾盐，任选的丙烯和任选的丙烷的至少一部分。

    PART-STREAM DISTILLATION
    5.
    发明申请
    PART-STREAM DISTILLATION 审中-公开

    公开(公告)号：US20160115140A1

    公开(公告)日：2016-04-28

    申请号：US14787956

    申请日：2014-04-28

    申请人： BASF SE ,  DOW GLOBAL TECHNOLOGIES LLC

    发明人： Joaquim H. TELES ,  Dominic RIEDEL ,  Bianca SEELIG ,  Philip KAMPE ,  Daniel URBANCZYK ,  Markus WEBER ,  Alexander SCHROEDER ,  Andrei-Nicolae PARVULESCU ,  Ulrich MUELLER ,  Meinolf WEIDENBACH ,  Werner WITZL ,  Holger BAER

    IPC分类号： C07D301/12 ,  B01D3/14 ,  C07D301/32

    CPC分类号： C07D301/12 ,  B01D3/143 ,  C07D301/32

    摘要： A continuous process for the preparation of propylene oxide, comprising (a) reacting propene, optionally admixed with propane, with hydrogen peroxide in a reaction apparatus in the presence of acetonitrile as solvent, obtaining a stream S0 containing propylene oxide, acetonitrile, water, at least one further component B, optionally propene and optionally propane, wherein the normal boiling point of the at least one component B is higher than the normal boiling point of acetonitrile and wherein the decadic logarithm of the octanol-water partition coefficient (log Kow) of the at least one component B is greater than zero; (b) separating propylene oxide from S0, obtaining a stream S1 containing acetonitrile, water and the at least one further component B; (c) dividing S1 into two streams S2 and S3; (d) subjecting S3 to a vapor-liquid fractionation in a fractionation unit, obtaining a vapor fraction stream S4 being depleted of the at least one component B; (e) recycling at least a portion of S4, optionally after work-up, to (a).

    摘要翻译： 一种用于制备环氧丙烷的连续方法，包括（a）在乙腈作为溶剂的存在下，在反应装置中将丙烯任选与丙烷混合，与过氧化氢反应，得到含有环氧丙烷，乙腈，水的流S0 至少一种另外的组分B，任选的丙烯和任选的丙烷，其中至少一种组分B的标准沸点高于乙腈的标准沸点，其中辛醇 - 水分配系数（log Kow）的十进制对数 所述至少一个组分B大于零; （b）从S0分离环氧丙烷，得到含有乙腈，水和至少一种其它组分B的料流S1; （c）将S1划分成两个流S2和S3; （d）使S3在分馏装置中进行汽 - 液分馏，得到耗尽至少一种B成分的蒸汽馏分流S4; （e）将至少一部分S4，任选地在后处理之后再循环至（a）。